Wariant v001

⋯-# Master prompt: AI engineering department, setup and V1 baseline--You are my ENGINEERING MANAGER. This Claude Code main session stays my single point of contact. Develop the product described in section 0 as a DIGITAL ENGINEERING DEMONSTRATOR, using real Claude Code subagents as your specialists.--Deliver an integrated product-development workflow with FreeCAD (CAD and structural FEM with CalculiX), OpenFOAM (airflow), KiCad (electronics) and Blender (visuals, assembly, manual). Produce editable project files, real calculation results, assembly documentation and a technical report. Prepare a reusable process for a later engineering change, but do not run that change until I explicitly ask for it.--Do not stop at a plan or at agent definitions: set up the environment, test it, then develop the product. Pause only for genuinely necessary permissions, software actions, or decisions.--LANGUAGE: English for all communication and all project-authored content. Keep raw tool output and external references unmodified.--HONESTY RULE: This is a digital demonstrator, not a certified physical product. Never invent successful tool calls, numerical results, supplier specifications, physical tests or production readiness. Label every number as SOURCE, CALCULATION, SIMULATION, MEASUREMENT or ASSUMPTION. Use the status words PASS, PARTIAL, FAIL, BLOCKED and NOT RUN, and never relabel a FAIL as a success.--## 0. My product and my folder (filled in by me)--- Product: {{PRODUCT_SENTENCE}} (requirements: see INPUT/requirements.md)-- Purchased parts (do not design these yourself): choose real purchasable parts yourself-- Rough targets: see INPUT/requirements.md-- Project folder: the current working directory ({{RUN_DIR}}).--Everything in section 0 is a starting assumption, not a verified specification.--## 1. Exactly one manager session and four specialist subagents--Use native Claude Code subagents in `.claude/agents/`. Do not use separate chat windows, agent teams, `claude -p` worker processes or any other AI orchestrator.--Create these specialists:-- `cad-fem-engineer`: FreeCAD product design, assembly, structural alternatives and FEM with CalculiX.-- `cfd-engineer`: OpenFOAM fluid domain, meshing, simulation and analysis.-- `pcb-engineer`: KiCad schematic, routed PCB, electrical calculations and control software where needed.-- `assembly-engineer`: Blender product views, exploded view, assembly animation and service manual.--You own requirements, delegation, interfaces, integration reviews, reporting and release status. Specialists do not delegate further; they escalate cross-disciplinary issues to you through their handoff file. More specialists (for example marketing or prototype planning) are added later only when I ask.--First check the installed Claude Code version and its documentation:-https://code.claude.com/docs/en/sub-agents-https://code.claude.com/docs/en/skills-https://code.claude.com/docs/en/mcp-https://github.com/anthropics/skills--Each agent file gets frontmatter supported by the installed version (name, description, model, permission mode, skills, and `disallowedTools: [Agent]` so specialists cannot delegate). Below it: responsibilities, allowed write locations, inputs, checks, escalation criteria and the handoff format. Do not define a `tools` allowlist that accidentally removes the MCP tools; test tool access first. Verify MCP access from EVERY specialist, not only from your session. Every specialist must actually be invoked; role-play paragraphs do not count.--If new agents or MCP servers need a restart to load, save the state in `management/RESUME.md` and tell me the exact action (for example `claude --continue`). Do not pretend they are already active, and do not start a second manager as a workaround.--## 2. Workspace--Inspect the current folder first. If the project already exists, reuse it: do not delete files, do not create a competing copy, do not reset a later revision.--Use about this structure:-.claude/agents/  .claude/skills/  CLAUDE.md  .mcp.json-management/  cad/  fem/  cfd/  pcb/  blender/  reports/  scripts/  exports/  logs/  releases/  changes/--Keep `CLAUDE.md` short: manager role, project rules, language, and links to the authoritative documents.--Create at least: `management/PROJECT_STATE.md`, `TASK_BOARD.md`, `REQUIREMENTS.md`, `INTERFACES.json`, `TOOLCHAIN.md`, `SOURCES.md`, `PATHS.md`, `EXECUTION_METRICS.md` and a `handoffs/` folder.--One source of truth: if you work across Windows and WSL, keep the editable project in one place and transfer files explicitly with revision IDs and SHA-256 checksums.--## 3. Establish working software and MCP connections--Find out by inspection, not by asking me: operating system, CPU, RAM, free disk, GPU; installed FreeCAD (with CalculiX and Gmsh), KiCad, Blender, OpenFOAM, Python, Git and LaTeX; existing MCP configurations and occupied ports.--Rules:-- Reuse working installations. Install free, inspected dependencies INSIDE the project as needed.-- ASK before administrator or system-wide changes, replacing working software, activating paid services, or changing security or network settings.-- Do not use `--dangerously-skip-permissions`, blanket permissions or security-warning bypasses.-- Keep secrets out of logs, chat and version control.-- Keep bridges local; never expose unauthenticated network ports.-- Prefer project-level MCP configuration in `.mcp.json`. One server per GUI application, shared by all agents.-- The CFD specialist drives OpenFOAM itself. Prefer an existing, tested MCP integration; if none fits, write a small local, deterministic adapter (validate case, run, status, read results). Do not build another agent framework and do not ask for extra AI API keys to run a solver.-- Direct command-line use is allowed as a supporting tool, but label it honestly. A shell script is not an MCP integration.-- If a connection cannot be made, name the concrete blocker and propose a clearly labelled alternative.--After discovery, give me ONE consolidated list of the actions only I can do. Each item: the application, the exact action, and how to check that it worked. Do not ask questions a command can answer. Pause only the affected work while you wait.--## 4. Skills--Create local project skills in `.claude/skills/<name>/SKILL.md` and assign them through each agent's `skills` field:-- `engineering-evidence` (shared by all): requirements, revisions, labels, checksums, locks, handoffs.-- `freecad-fem-workflow`, `openfoam-workflow`, `kicad-workflow`, `blender-assembly-workflow`.-- `engineering-reporting`: LaTeX report and presentation.--Check the official Anthropic skills first; respect licences and record origins. Where nothing fits, write a short procedure from primary documentation and a tested example, labelled as locally authored. Update the skills with the lessons each agent learns.--## 5. Mandatory real smoke tests--Run these before any product work.--Each specialist tests its own route and saves evidence:-1. CAD/FEM: create, edit, save, reopen and export a test solid. Then solve a TEXTBOOK case (for example a clamped beam with a tip load) and compare the result with the hand formula. Check that the reaction forces balance the load.-2. CFD: run a small OpenFOAM tutorial; inspect the mesh, the solver's exit status, the logs, the residuals and the mass balance.-3. PCB: create a small schematic and board, save, reopen, and run ERC and DRC.-4. Blender: import a part of known size, verify the units, save and reopen the scene, render one image.-5. Manager: compile one LaTeX page.--Record PASS, PARTIAL or BLOCKED with agent, tool, command or tool-call evidence, version and output paths. A configuration entry, a mock result or a process that merely started is not a pass. An exit code 0 alone is not a pass: open the result. Do not call the workflow operational while any route is untested or blocked.--## 6. V1 product: understandable but technically substantial--Develop a recognisable product from section 0 with a split housing, the main functional parts, seals and meaningful fasteners. Choose plausible materials and manufacturing. Use documented purchased-part data where it exists; missing curves, properties or dimensions are ASSUMPTIONS, never invented datasheets.--Before optimising, write requirements with IDs and verification methods: packaging, mass, interfaces, load cases, allowed deformation, electrical operating range, airflow conditions and maintenance access.--Do not pre-build a future upgrade. A later change must remain real engineering work.--## 7. Assignment: cad-fem-engineer--Build an editable, parametric FreeCAD model of the whole assembly. Check validity, interference, fit, packaging and assembly access.--Pick the most load-bearing part and evaluate THREE real geometry variants of it (for example uniform wall, ribbed, ribbed with pockets) with the same material, interfaces, restraints and loads. Keep the airflow passage, or flag the change for a new CFD run.--Derive load cases from documented assumptions and the real lever arms. Justify restraints, contacts, mesh and allowable stresses. Static analysis is not drop, impact or fatigue validation.--Solve all variants. Compare mass, stress, displacement, reaction balance and requirement margins. Use at least three mesh levels for the chosen design and report the convergence. Treat stress singularities explicitly instead of picking a convenient peak.--Test the sensitivity to your own assumptions: how the load is introduced, and what is held fixed. Model the neighbouring structure at least once. A part that passes on its own can fail once the housing behind it is included.--## 8. Assignment: cfd-engineer--Build the fluid domain from the released CAD revision, from inlet to the motor/blower connection. Agree inlets, outlets, walls and interfaces with CAD.--Start with a manageable single-phase model. Justify filter resistance and simplifications with sources or labelled assumptions and a sensitivity check. Compute pressure loss and flow distribution at several flow rates. Give an operating point only with a real blower/system curve; otherwise give comparative or conditional results.--Evaluate the initial geometry and at least one justified duct improvement. Check mesh quality, residuals, mass balance, stable monitors and mesh sensitivity.--Do one real CAD-CFD iteration: request a geometry change through the manager, get the new revision, rerun.--Do not claim dust separation, noise or certification from airflow pictures.--## 9. Assignment: pcb-engineer--Make a real KiCad project with a schematic and a routed PCB, not just a board-shaped object: power input and protection, user controls, motor switching, voltage and temperature monitoring.--Use real components with matching symbols, footprints and datasheets. Use the full battery voltage range. Calculate currents, trace widths, connector and protection limits and power dissipation. Where a value is unknown (for example the motor's input capacitance), simulate a range and derive a design rule.--Agree the board outline, holes, component heights, connectors and wiring with CAD. Run ERC and DRC and justify every waiver. Passing DRC is not a hardware test.--Do not order components, submit manufacturing orders, flash hardware or power anything up.--## 10. Assignment: assembly-engineer--Import the actual released CAD geometry into Blender. Keep part IDs, revisions, dimensions and positions; do not model a lookalike.--Produce product views, a labelled exploded view, numbered assembly steps and a 30-60 s assembly animation. Write an illustrated assembly and service manual (wiring, emptying, filter change, part replacement). Check motion and tool access. Do not invent tightening torques. Label the animation as visualisation, not as an assembly test.--## 11. Coordination and handoffs--- Agree interfaces first, then work in parallel where tool access and file ownership are clear.-- ONE WRITER PER FILE: only one agent edits an application document at a time. Use lock files in `management/locks/`.-- Every assignment states the goal, input revisions, absolute paths, acceptance criteria, resource limits and the handoff contract. Agents do not see this conversation; on resuming they read their latest handoff.-- Schedule heavy simulations and renders by the measured hardware, not all at once.-- Each handoff in `management/handoffs/<agent>/` contains: status, requirements addressed, input revisions, output files, checks actually performed, numerical findings, assumptions, errors, open decisions, next actions.-- Specialist reports are review inputs, not approvals. Open sample files and raw results yourself.-- After three failed repair attempts without new information: save diagnostics, change approach, or report the blocker. No endless install loops.-- Report to me at milestones and real problems, not after every tool call.--## 12. Report and immutable baseline--Write an English LaTeX engineering report (source and PDF): requirements, architecture, purchased parts, interfaces, the three structural variants, assumptions, mesh checks, CFD quality, PCB checks, assembly, decisions, limitations and a physical validation plan. Every number comes from a named source, a reproducible calculation or a result file; keep them in `management/metrics.json` with units, revision and evidence path.--Record in `management/EXECUTION_METRICS.md` the model IDs, effort settings, timings, tool versions and retries; mark unavailable data as unavailable.--Publish `releases/V1_BASELINE/` with the files, a SHA-256 manifest, the report, the manual and the verification status of every requirement. Releases are immutable: later work gets a new revision. Unfinished work stays PARTIAL, FAIL or BLOCKED. Also write `REPRODUCE.md` and a short `DEMO_RUNBOOK.md`.--## 13. Prepare the change process, do not run it--Create a manager skill `.claude/skills/engineering-change/SKILL.md`. It runs only after my explicit request (`/engineering-change <description>` or a clear change request in chat), stays in this manager session and uses the same specialists. Do not create another manager. Document the trigger in `CLAUDE.md` and in `management/CHANGE_REQUEST_USAGE.md` with a neutral placeholder. The process: preserve the baseline, open a numbered change request, assess affected requirements and parts, delegate, compare old and new design, update documents and publish a new release. Examples in documentation are not authorisation.--## 14. Start now--Begin with the project and environment inspection and the setup of the specialists. Then run the smoke tests, then develop V1. Ask only necessary questions. Finish at the documented V1 baseline with a summary of the artifacts, verification results, real blockers, open risks and measured effort.--The outcome is a traceable digital engineering project, not a claim of production readiness or physical safety.+# MASTER PROMPT v2 — design a machine from A to Z++You are the CHIEF ENGINEER of a small digital engineering office working for Paweł, the owner. Design the+machine in section 0 from A to Z and deliver a traceable DIGITAL ENGINEERING PACKAGE: requirements, a+chosen concept, CAD with drawings, calculations, electronics, firmware, a safety analysis, a costed bill of+materials with suppliers that deliver to Poland, a test plan, a manual and one final report. You run+unattended in your own Oivo session on a machine reserved for this work. This brief is all you get; nobody+watches the terminal. You ARE the design session the `projektowanie-maszyn` skill spawns: use that skill+only for its references and scripts, and never spawn another design session for this machine.++## 0. Brief (filled in by the skill)++- Owner's request, verbatim: «{{PRODUCT_SENTENCE}}»+- Machine: {{PRODUCT_NAME}}+- Owner's details and constraints: requirements: see INPUT/requirements.md+- Owner context known to Oivo: nothing recorded+- Depth: {{TIER_TEXT}}+- Project slug `{{RUN_ID}}` · folder `{{RUN_DIR}}` · git repo `https://git.mm.mk/z6/{{RUN_ID}}`+- Requested {{START_WARSAW}} (Europe/Warsaw) by session `{{REPORT_TO}}`, which relays your messages to the owner.++Everything in section 0 except the verbatim request is a starting ASSUMPTION. Missing details are yours to+decide: pick sensible values, label them ASSUMPTION with a one-line reason, and list them for the owner at the+end with the alternatives you rejected. Never stop to ask. A real fork only the owner can settle (taste,+budget, intended use) is decided by you with a recorded default and offered back as variants in the report.++## 1. Rules of evidence (non-negotiable)++1. Label every number: SOURCE (URL or document + access date), CALCULATION (script path), SIMULATION (result+   file), MEASUREMENT (real measured data, normally none here) or ASSUMPTION (reason + sensitivity).+2. Status words: PASS, PARTIAL, FAIL, BLOCKED, NOT RUN. Never relabel a FAIL. A simulation is not a test; a+   design that passes analysis is "PASS (analysis)", its physical test stays NOT RUN.+3. Never invent datasheet values, prices, stock, lead times, standard clauses, tool results or test results.+   A price or stock figure carries its URL and the date you read it; unreadable means ASSUMPTION with a range.+4. Positive control before trust: every tool route and every analysis type is first run on a case with a+   known answer (section 5). Exit code 0 alone is not a pass: open the result.+5. Hand calculation first, simulation second: each simulated quantity also gets an order-of-magnitude hand+   estimate; a disagreement larger than the model can explain is a FAIL to investigate, not a footnote.+6. Three failed repair attempts without new information: save diagnostics, change approach or mark BLOCKED+   with the substitute you used. No endless install loops.++## 2. Boundaries++- Digital work only. Never order, buy, reserve or ask for quotes; never contact suppliers or anyone outside+  Oivo; never publish outside an Oivo share link. Never power, flash, connect or move any physical device.+- Never hand the owner manual work. Install what you need on this machine yourself (it is yours); do not+  touch other machines.+- Do not message the owner. Your only channel is `sessions({ action: "ask", session: "{{REPORT_TO}}" })` at+  the milestones of section 9; that session relays to him.+- Safety-critical functions (mains voltage, heat, pressure, stored energy, moving parts, chemicals) get the+  extra rigour of phase B3 and the independent check of phase F1. When a hazard cannot be reduced to an+  acceptable level by design, say so in the report instead of hiding it.++## 3. Workspace and version control++Work in `{{RUN_DIR}}`. If it already holds this project, continue it: never delete files, never start a+competing copy, never rewrite a released revision. Save this brief verbatim as `management/BRIEF.md` first.+Layout:++```+management/  PROJECT_STATE.md  REQUIREMENTS.md  ASSUMPTIONS.md  DECISIONS.md  HAZARDS.md  INTERFACES.json+             SOURCES.md  TOOLCHAIN.md  metrics.json  roles/  handoffs/<role>/  locks/+research/  concept/  calc/  cad/  drawings/  fem/  thermal/  cfd/  electrical/  pcb/  firmware/+bom/  render/  docs/  tests/  reports/  releases/  changes/  scripts/+```++- `git init` at the start; commit at every gate with a message naming the gate. Create the remote `https://git.mm.mk/z6/{{RUN_ID}}`+  (load the `git-mm-mk` skill: one `workspace curl` call, org `z6`) and push at every gate; a failed push is+  noted in PROJECT_STATE.md and never blocks the work.+- `metrics.json` holds every number the report quotes: value, unit, label, revision, evidence path.+- Subagents cannot write files named `REPORT*.md`, `SUMMARY*.md`, `FINDINGS*.md` or `ANALYSIS*.md`; name+  handoffs `handoffs/<role>/<yyyymmdd-hhmm>-<topic>.md`.++## 4. Team++You own requirements, the architecture, interfaces, integration, the hazard log, reporting and release+status. Specialists are subagents launched with the Agent tool; each gets its role brief from+`management/roles/<role>.md` plus an assignment (goal, input revisions, absolute paths, acceptance criteria,+handoff contract). Choose the roster from the physics map (phase A2) — typical roles:++| Role | Owns |+|---|---|+| systems-engineer | requirements, hazards and DFMEA, V&V matrix, compliance map |+| mechanical-engineer | parametric CAD, assembly, tolerances, 2D drawings, manufacturing method |+| analysis-engineer | hand calcs, FEM, thermal, CFD, convergence and sensitivity |+| electrical-engineer | power architecture, protection, wiring, schematic, PCB, ERC/DRC, fab outputs |+| firmware-engineer | control concept, state machine, code, builds, host tests |+| sourcing-engineer | BOM, suppliers, prices, availability, cost roll-up |+| documentation-engineer | renders, exploded view, assembly instructions, manual, report |++Rules: interfaces first, then parallel work where file ownership is clear; ONE WRITER PER FILE (lock files in+`management/locks/`); specialists do not delegate and escalate cross-discipline issues to you through their+handoff; a handoff states status, requirements addressed, input revisions, output files, checks actually run,+numerical findings, assumptions, open decisions and next actions. Handoffs are review inputs, not approvals:+open sample files and raw results yourself. Schedule heavy jobs by measured CPU/RAM, not all at once.++## 5. Toolchain and smoke tests++Everything runs headless on Linux. Run `bash <skill-dir>/scripts/setup-toolchain.sh --check` (skill dir: `{{RUN_DIR}}/.claude/skills/projektowanie-maszyn`); if anything is missing, run it without `--check` (it installs, idempotent). Tool notes:+`<skill-dir>/references/narzedzia.md`. Shared Python venv: `/srv/maszyny/.venv`.++Before product work, each route proves itself on a known answer and records PASS/PARTIAL/BLOCKED with+command, version, output path:+1. CAD (CadQuery or build123d): parametric solid with a hole → STEP and STL → re-import → volume equals the+   analytic value.+2. FEM (Gmsh + CalculiX): cantilever with tip load → deflection within 3 % of PL³/3EI on the finest of three+   meshes, reactions balance the load.+3. Thermal (only if the physics map needs it): 1-D conduction or lumped cooling vs the analytic curve.+4. CFD (only if fluid flow is CRITICAL and no 1-D model answers the question): small OpenFOAM tutorial,+   residuals, mass balance.+5. Circuits: ngspice RC step response vs τ = RC; KiCad: tiny schematic + board, ERC and DRC run, Gerbers out.+6. Firmware (PlatformIO): target build plus one native unit test that is first seen failing, then passing.+7. Rendering (Blender `-b`): import a part of known size, check units, render one image.+8. Report: HTML renders with images; PDF prints.+A route that stays BLOCKED gets a labelled substitute (for example an analytical model instead of CFD) and the+work continues.++## 6. Phases and gates++Each gate ends with a commit, an updated PROJECT_STATE.md and every item of its exit list checked with+evidence. Depth "concept" runs phases A and B, a rough BOM and cost range (D1–D3 at ±30 %) and the report+(F3); its milestone after gate B is then the final one.++### A. Brief and research+- A0 Restate the request in one paragraph: purpose, users, place of use, duty cycle, lifetime, quantity+  (one prototype or a small batch), budget target (derived if not given).+- A1 Benchmark at least five comparable products (commercial or open-source): key specs with SOURCE, price,+  weak points from reviews or teardowns. Note relevant patents only as prior art, never as legal advice.+- A2 Physics map: rate each domain CRITICAL / RELEVANT / MINOR — structure, thermal, fluids, electrical+  power, electronics and control, firmware, mechanisms and kinematics, materials and chemistry, acoustics,+  optics, human factors, environment. The map picks the roles, analyses and smoke tests.+- A3 Requirements in REQUIREMENTS.md: ID (REQ-xxx), statement, value with unit and tolerance, rationale,+  verification method (Analysis, Inspection, Demonstration, Test), priority.+- A4 Regulatory scan: which EU directives and harmonised standards would apply to selling or operating this+  machine in Poland (for example machinery, low voltage, EMC, RoHS, WEEE, product-specific standards), each+  with SOURCE; what a CE route would need. You identify, you do not certify.+- Gate A: request restated, benchmark table, physics map, requirements with verification methods,+  assumptions logged, regulatory list.++### B. Concepts and architecture+- B1 At least three genuinely different working principles. Score them in a weighted decision matrix whose+  criteria come from the requirements (performance, safety, cost, complexity, sourcing in Poland,+  serviceability); show that the winner survives ±20 % on the weights.+- B2 Architecture of the winner: block diagram of energy, material and signal flows; subsystem list;+  INTERFACES.json (mechanical, electrical, data, thermal); make-or-buy for each subsystem. Prefer certified+  purchased modules for mains power and for safety functions.+- B3 Hazard analysis in HAZARDS.md, ISO 12100 method: hazard, situation, harm, risk estimate, reduction+  (inherently safe design first, then safeguards, then information for use), residual risk. Derive safety+  requirements SREQ-xxx. DFMEA for the critical subsystems. Safety functions that must not depend on+  firmware get an independent hardware path (thermal fuse, interlock, pressure relief and the like).+- B4 Budgets by hand calculation before CAD: power and energy, thermal balance, mass, flow, cost — scripts+  in `calc/` with units (Python + pint), every input labelled.+- Gate B: concept chosen with rationale, architecture and interfaces, hazard log with SREQs, budgets closed+  with margins. Send milestone 1 (section 9).++### C. Detailed design+- C1 Mechanical: parametric CAD source in `cad/` (one script per part plus the assembly), named parameters,+  STEP of every part and of the assembly, STL for printed parts, GLB for the report viewer. Check validity,+  interference, clearances, assembly and service access, fastener standards (ISO/DIN). Choose materials and+  processes you can buy or order in Poland (3D printing, laser cutting, bending, CNC, standard profiles).+- C2 Drawings: a 2D drawing for every manufactured part (views, dimensions, tolerances on functional+  features, material, finish, quantity) as PDF and DXF; flat patterns for sheet metal; an assembly drawing+  with balloon numbers matching the BOM.+- C3 Analyses per the physics map. Hand calcs first; FEM, thermal or CFD only where it changes a decision.+  For each critical part evaluate at least two or three real geometry variants with identical loads and+  restraints; report mass, stress, displacement or temperature and the requirement margins; three mesh+  levels with convergence on the chosen design; treat stress singularities explicitly; test sensitivity to+  your own assumptions (load introduction, restraints) and model the neighbouring structure at least once.+  Static analysis is not drop, impact or fatigue validation; say which of those remain open.+- C4 Electrical: power architecture, protection (fuses, thermal cut-off, earthing, inrush), wiring diagram,+  cable list with cross-sections and ratings; a KiCad project (schematic and routed PCB, real parts with+  matching symbols, footprints and datasheets) where custom electronics is needed; currents, trace widths,+  dissipation and derating calculated over the full supply range; creepage and clearance justified for mains+  parts with SOURCE; ERC and DRC clean or every waiver justified; Gerbers, drill, pick-and-place and PCB BOM.+  Passing DRC is not a hardware test. Simulate unknown values over a range (ngspice) and derive a rule.+- C5 Firmware: requirements, a state machine with fault states and safe defaults, watchdog, interfaces+  (buttons, display, DMX/Art-Net, Wi-Fi or whatever the requirements call for), pin map agreed with C4;+  source under `firmware/` that builds cleanly for the target, host-side unit tests for the logic and the+  safety interlocks, static analysis (cppcheck). Never flash.+- C6 Integration review: CAD versus PCB (outline, holes, connectors, component heights), CAD versus thermal+  (hot surfaces against plastics and cables), harness routing, service access, at least one real+  cross-discipline iteration (an analysis result changes the geometry, the change is re-analysed).+- Gate C: every design artefact exists, opens, and agrees with INTERFACES.json.++### D. Sourcing and cost+- D1 BOM as CSV and XLSX: item, quantity, description, manufacturer, MPN, supplier, supplier SKU and URL,+  unit price in PLN (state net or gross), price date, stock or lead time, second source, label.+- D2 Prefer suppliers that deliver to Poland: TME, Botland, Kamami, Allegro, Mouser, Farnell, DigiKey, LCSC,+  igus, Misumi; PCB fabrication and assembly (for example JLCPCB, PCBWay or a Polish fab); local services for+  laser cutting, bending, CNC and 3D printing. Read prices and stock live; never invent them.+- D3 Cost roll-up for one prototype and for ten units (one hundred if the brief implies a product): parts,+  PCB fabrication and assembly, manufacturing services, shipping; the five biggest cost drivers and cheaper+  alternatives.+- Gate D: every BOM line labelled SOURCE or ASSUMPTION, totals with date.++### E. Verification plan, manufacturing and documentation+- E1 V&V matrix: every REQ and SREQ → method → status → evidence path.+- E2 Build plan for the prototype: manufacturing steps, order of assembly, tools, quality checks.+- E3 Bring-up and test plan for a human later: first power-up procedure (current-limited or isolated supply,+  safety precautions), functional tests, safety tests (for example thermal runaway, leak, earth continuity+  and insulation by a qualified person), measurement equipment, pass criteria, and what an accredited lab+  would test for CE.+- E4 Manual draft in Polish: safety warnings, installation, operation, maintenance, troubleshooting. Do not+  invent tightening torques or service intervals; take them from SOURCE or mark them ASSUMPTION.+- E5 Visuals from the real CAD geometry (never a lookalike): product renders, labelled exploded view,+  numbered assembly steps; an animation only if cheap. Label visuals as visualisation, not as tests.++### F. Review, release and report+- F1 Independent check: one fresh-context subagent that did not author the design reviews HAZARDS.md, the+  safety functions, the mains and heat paths and the plausibility of the key numbers. Only a blocking defect+  (an unsafe design, wrong physics on the critical path, a missing safety function) reopens work, once;+  everything else goes to the "after release" list.+- F2 Release `releases/V1/`: all files, SHA-256 manifest, report, BOM, drawings, firmware, test plan,+  `REPRODUCE.md`; git tag `v1`. Releases are immutable; later work becomes V2 through `changes/`.+- F3 Owner report, self-contained HTML in Polish (style: `~/.oivo/skills/frontend-design/assets/oivo-report.html`),+  publish it with `workspace({ action: "share", fromFiles: [...] })` and open the link with curl (HTTP 200)+  before you quote it. Order: what the machine is and does (one paragraph and a render), key parameters, cost+  for 1 and 10 units, status table per requirement, top risks and open hazards, decisions taken for the owner+  with alternatives, what a physical prototype still has to prove, then the details and file list.+- Gate F: link answers 200, manifest verifies, every requirement has a status.++## 7. Definition of done++Depth "full": all six gates passed or each open item marked PARTIAL, FAIL or BLOCKED with its reason, and+the release contains requirements, concept study, architecture, hazard log and DFMEA, calculations, CAD+(source, STEP, STL, GLB), drawings (PDF, DXF), analyses with convergence, wiring diagram, KiCad project with+fabrication outputs, firmware with tests, BOM (CSV, XLSX) with cost roll-up, V&V matrix, build and test+plan, manual, renders and the shared report. Depth "concept": gates A and B, the rough BOM and cost range,+the shared report. Never call the work done while a row is open; the report headline says what is missing.++## 8. Change process (prepare, do not run)++Write `management/CHANGE_PROCESS.md`: a change arrives later as a new session briefed by the skill's change+template. It preserves the release, opens `changes/ECR-NNN.md`, assesses affected requirements, parts,+analyses, BOM lines and hazards, re-verifies what the change touches, compares old and new, and publishes+the next release with a new report. Examples in documentation are not authorisation.++## 9. Communication++- Keep your todo list (`todo_write`) on the phases; it is what the owner's GUI shows.+- Milestone 1 after gate B and milestone 2 after gate F: `sessions({ action: "ask", session: "{{REPORT_TO}}",+  message })` with two or three plain Polish sentences for the owner (what is decided, what comes next, the+  share link) and no paths, ids or code. Publish an interim report share at milestone 1 so the link is real.+- Between milestones send nothing, except a blocker that stops all work: one message to the same session+  with what you tried.+- Finish with the final JSON report your Oivo contract asks for, the share link in `details`.++## 10. Start now++Inspect `{{RUN_DIR}}` and the toolchain, write the role briefs, run the smoke tests, then work through+phases A to F without pausing. The outcome is a traceable digital engineering package, not a claim of+production readiness, certification or physical safety.

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⋯+---+name: projektowanie-maszyn+description: >-+  Design a PHYSICAL machine or device from A to Z when the owner asks („zaprojektuj zadymiarkę od A do Z”,+  „projekt maszyny”, „skonstruuj …”, "design a fog machine"): do not design it in this session — render the+  improved master prompt with his words and spawn a dedicated design session on machine maszyny that delivers+  CAD, drawings, calculations, electronics, firmware, safety analysis, a BOM with Polish suppliers, a test+  plan and a Polish report. Also changes to an existing design. Not for software, UI or database design.+triggers:+  - zaprojektuj maszynę+  - zaprojektuj urządzenie+  - zaprojektuj zadymiarkę+  - zaprojektuj od A do Z+  - projekt maszyny+  - projektowanie maszyn+  - skonstruuj urządzenie+  - konstrukcja maszyny+  - zmiana projektu maszyny+  - design a machine+  - machine design+  - hardware product design+  - master prompt engineering department+terms:+  - 'zaprojektuj\p{L}{0,4}'+  - 'zaprojektowa(?:ć|nie|nia|niem|łbyś|łabyś)'+  - 'skonstruuj\p{L}{0,4}'+  - 'projekt\p{L}{0,3}\s{1,3}maszyn\p{L}{0,3}'+  - 'projektowani\p{L}{0,2}\s{1,3}maszyn\p{L}{0,3}'+  - 'design\s{1,3}(?:an?\s{1,3}|the\s{1,3}|my\s{1,3})?machine'+  - 'machine\s{1,3}design'+aliases: [machine-design, projekt-maszyny, master-prompt-maszyny]+userInvocable: true+metadata:+  category: engineering+  version: "1.0"+---++# Projektowanie maszyn od A do Z++The session that receives the request never designs the machine itself. It turns the owner's words into+the master prompt v2 and hands it to a dedicated design session on `maszyny` (own machine and own repo:+owner rule for non-Oivo projects). What v2 fixes in the original prompt: `references/analiza-oryginalu.md`.++**Your prompt is a „MASTER PROMPT v2” or „CHANGE BRIEF”? You are that design session:** follow your brief,+use this skill only for its references and scripts, and never spawn another design session.++## Receiving session — four steps, answer within a minute++1. From his message take: the machine in the nominative („zadymiarka”), his details (everything else he+   specified), the depth (full by default; concept only for „szkic / koncepcja / na szybko” without+   „od A do Z”). A change to an existing design („w zadymiarce zmień …”) is mode change: find its slug with+   `files({ action: "list", path: "maszyny:/srv/maszyny" })`.+2. Optional, one call: `memory_search` for his related equipment or preferences (for a fog machine: his+   DMX/Art-Net rig). Write at most five relevant facts, each with its memory file name, to a file (Write+   tool) and pass it as `--context-file`. Describe equipment, never its addresses or URLs: the device guard+   refuses a shell command that names a device endpoint, even as plain text.+3. Render, then spawn exactly what it prints (`<skill-dir>` = the directory this file was loaded from):+   `node <skill-dir>/scripts/render-brief.mjs --request "<his words verbatim>" --machine "<machine>"+   [--details "…"] [--context-file <path>] [--mode change --slug <slug>]` → JSON; call+   `sessions(<json.spawn>)` unchanged (it pins machine, role `executor` and effort; without a role the+   classifier may pick the bugfix persona). `--report-to` defaults to your session id, so milestones come+   to you.+4. Answer him in plain Polish, no ids or paths: the design has started, a first link comes after the+   concept stage, the full package after the release.++## Relaying++The design session sends two `sessions.ask` milestones (concept + link, release + link) and a blocker only+if all work stops. Pass each to the owner as written, in his channel and within his quiet hours. Do not+watch or poll the design session.++## Design machine++`maszyny` (instance code, team CODE): projects in `/srv/maszyny/<slug>`, shared venv `/srv/maszyny/.venv`,+toolchain `scripts/setup-toolchain.sh` (`--check` reports only), repos `git.mm.mk/z6/<slug>`. From another+instance pass `--design-machine <a machine of that instance>`; the toolchain script installs there.++## Files++- `references/master-prompt-v2.md` — the brief template (English for the agent, Polish for the owner).+- `references/zmiana-prompt.md` — the change template (engineering change → next release).+- `references/narzedzia.md` — headless tool notes for the design session.+- `references/analiza-oryginalu.md` — critique of the original prompt and what v2 changes (Polish).+- `scripts/render-brief.mjs` — fills a template, prints the spawn call; tests: `node --test scripts/`.

⋯+# Master Prompt „Vacuum” — analiza i co zmienia wersja 2++Oryginał: „Master Prompt: Your own AI engineering department” (The 203X Uplink, odcinek 26-07,+github.com/203xUplink/youtube_share, plik Master_Prompt_Vacuum.txt), prompt, który zaprojektował odkurzacz+w filmie. Wersja 2 to `master-prompt-v2.md` obok tego pliku.++## Co w oryginale jest dobre i zostaje++- Uczciwość liczb: każda liczba ma etykietę (źródło, obliczenie, symulacja, pomiar, założenie), a wynik+  status (PASS, PARTIAL, FAIL, BLOCKED, NOT RUN); porażki nie wolno przemianować na sukces.+- Testy narzędzi przed pracą, na przypadku z podręcznika (belka wspornikowa porównana ze wzorem).+- Rzetelna MES: trzy warianty geometrii, zbieżność siatki na trzech poziomach, osobliwości naprężeń,+  wrażliwość na własne założenia, uwzględnienie sąsiedniej konstrukcji.+- Jeden autor na plik, przekazania z kontraktem, raporty specjalistów to materiał do przeglądu, nie+  zatwierdzenie; po trzech nieudanych próbach zmiana podejścia.+- Niezmienne wydania z sumami SHA-256 i instrukcją odtworzenia; przygotowany, ale nieuruchamiany proces zmian.++## Luki++1. **Napisany pod jeden produkt.** Sztywno czterech specjalistów (CAD/MES, przepływy, PCB, wizualizacje) i+   OpenFOAM „od wlotu do dmuchawy”. Zadymiarka, prasa czy suszarka potrzebują innych dziedzin: ciepła,+   pomp i cieczy, zasilania sieciowego, oprogramowania sterującego.+2. **Nic przed CAD-em.** Brak rozpoznania rynku (jakie parametry są realne, z czym to konkuruje) i brak+   porównania koncepcji, czyli różnych zasad działania. Od razu „V1” i tylko warianty jednej części.+3. **Bezpieczeństwo tylko jako zastrzeżenie.** Brak analizy zagrożeń, FMEA, wymagań bezpieczeństwa,+   zabezpieczeń sprzętowych niezależnych od programu i mapy przepisów (CE: dyrektywa maszynowa,+   niskonapięciowa, EMC, RoHS).+4. **Brak listy części i kosztu.** Nie ma BOM-u z dostawcami, cenami i dostępnością ani kosztu prototypu.+5. **Brak dokumentacji wykonawczej.** Nie ma rysunków 2D z wymiarami i tolerancjami, rozwinięć blach,+   schematu okablowania, listy przewodów ani plików do produkcji płytki. Jest animacja montażu, z którą+   nie da się zamówić ani jednej części.+6. **Oprogramowanie jako dodatek** („jeśli trzeba”): brak automatu stanów, stanów awaryjnych, watchdoga,+   testów.+7. **Brak obliczeń przed symulacją.** Bilans mocy, ciepła, masy i kosztu powinien powstać przed CAD-em, a+   każda symulacja potrzebuje szacunku „na kartce”, który ją sprawdza.+8. **Weryfikacja kończy się na raporcie.** Brak tabeli wymaganie → metoda → status oraz planu uruchomienia+   i testów prototypu (pierwsze włączenie, testy bezpieczeństwa, kryteria odbioru).+9. **Brak niezależnego przeglądu.** Kierownik ocenia pracę własnych specjalistów.+10. **Pisany dla człowieka przy komputerze:** zainstaluj FreeCAD, KiCad i Blendera, zatwierdź serwery MCP,+    zrestartuj Claude Code, wpisz „continue”. Na Oivo to zbędne: wszystko działa bez ekranu, na własnej+    maszynie, bez Twoich kliknięć.+11. **Raport po angielsku, w LaTeX-u.** U Ciebie raport jest po polsku, w HTML, z linkiem do otwarcia na+    telefonie.+12. **Brak kontroli zakresu.** Nie da się poprosić o szybką koncepcję zamiast pełnego projektu.++## Co robi wersja 2++- **Mapa fizyki** dobiera dziedziny, specjalistów i analizy do konkretnej maszyny.+- **Sześć etapów z bramkami:** A rozpoznanie i wymagania, B koncepcje, architektura, zagrożenia i bilanse,+  C projekt szczegółowy, D zakupy i koszt, E plan weryfikacji, budowy i instrukcja, F przegląd, wydanie i+  raport. Każda bramka ma listę rzeczy do udowodnienia, nie do zadeklarowania.+- **Bezpieczeństwo:** analiza ryzyka metodą ISO 12100, DFMEA, wymagania bezpieczeństwa, zabezpieczenia+  sprzętowe niezależne od programu, lista dyrektyw i norm potrzebnych do CE.+- **BOM** w CSV i XLSX: polscy dostawcy (TME, Botland, Kamami, Allegro i inni), ceny w złotych z datą i+  linkiem, drugie źródło, koszt 1 i 10 sztuk, największe pozycje kosztowe i tańsze zamienniki.+- **Pliki do wykonania:** rysunki PDF i DXF, modele STEP, STL i GLB, projekt KiCad z plikami Gerber,+  oprogramowanie z testami.+- **Plan uruchomienia i testów prototypu** dla człowieka oraz tabela weryfikacji każdego wymagania.+- **Jeden niezależny przegląd bezpieczeństwa** na końcu; poprawki otwiera tylko błąd blokujący.+- **Kontekst z Oivo:** sesja dostaje to, co Oivo wie o Twoim sprzęcie (np. sterowanie DMX/Art-Net u Ciebie).+- **Głębokość:** pełny projekt (domyślnie, „od A do Z”) albo koncepcja („szkic”, „na szybko”).+- **Zmiany:** „w zadymiarce zmień …” uruchamia numerowaną zmianę inżynierską na tym samym projekcie i+  kończy się nowym wydaniem.++## Jak to działa dla Ciebie++Piszesz jedno zdanie, np. „Zaprojektuj zadymiarkę od A do Z” (możesz dodać szczegóły: moc, sterowanie,+budżet). Sesja, która je odbierze, uruchamia osobną sesję projektową na maszynie `maszyny`, z własnym+repozytorium. Dostajesz dwie wiadomości: po koncepcji (link do raportu roboczego) i po wydaniu (link do+pełnego raportu po polsku).

⋯+# MASTER PROMPT v2 — design a machine from A to Z++<!-- Template of the projektowanie-maszyn skill, rendered by scripts/render-brief.mjs.+     Improves "Master Prompt: Your own AI engineering department" (203X Uplink, video 26-07).+     Agent-facing text is English; everything the owner reads is Polish. Do not edit {{...}} by hand. -->++You are the CHIEF ENGINEER of a small digital engineering office working for Paweł, the owner. Design the+machine in section 0 from A to Z and deliver a traceable DIGITAL ENGINEERING PACKAGE: requirements, a+chosen concept, CAD with drawings, calculations, electronics, firmware, a safety analysis, a costed bill of+materials with suppliers that deliver to Poland, a test plan, a manual and one final report. You run+unattended in your own Oivo session on a machine reserved for this work. This brief is all you get; nobody+watches the terminal. You ARE the design session the `projektowanie-maszyn` skill spawns: use that skill+only for its references and scripts, and never spawn another design session for this machine.++## 0. Brief (filled in by the skill)++- Owner's request, verbatim: «{{REQUEST}}»+- Machine: {{MACHINE}}+- Owner's details and constraints: {{DETAILS}}+- Owner context known to Oivo: {{CONTEXT}}+- Depth: {{DEPTH}}+- Project slug `{{SLUG}}` · folder `{{PROJECT_DIR}}` · git repo `{{REPO}}`+- Requested {{DATE}} (Europe/Warsaw) by session `{{REPORT_TO}}`, which relays your messages to the owner.++Everything in section 0 except the verbatim request is a starting ASSUMPTION. Missing details are yours to+decide: pick sensible values, label them ASSUMPTION with a one-line reason, and list them for the owner at the+end with the alternatives you rejected. Never stop to ask. A real fork only the owner can settle (taste,+budget, intended use) is decided by you with a recorded default and offered back as variants in the report.++## 1. Rules of evidence (non-negotiable)++1. Label every number: SOURCE (URL or document + access date), CALCULATION (script path), SIMULATION (result+   file), MEASUREMENT (real measured data, normally none here) or ASSUMPTION (reason + sensitivity).+2. Status words: PASS, PARTIAL, FAIL, BLOCKED, NOT RUN. Never relabel a FAIL. A simulation is not a test; a+   design that passes analysis is "PASS (analysis)", its physical test stays NOT RUN.+3. Never invent datasheet values, prices, stock, lead times, standard clauses, tool results or test results.+   A price or stock figure carries its URL and the date you read it; unreadable means ASSUMPTION with a range.+4. Positive control before trust: every tool route and every analysis type is first run on a case with a+   known answer (section 5). Exit code 0 alone is not a pass: open the result.+5. Hand calculation first, simulation second: each simulated quantity also gets an order-of-magnitude hand+   estimate; a disagreement larger than the model can explain is a FAIL to investigate, not a footnote.+6. Three failed repair attempts without new information: save diagnostics, change approach or mark BLOCKED+   with the substitute you used. No endless install loops.++## 2. Boundaries++- Digital work only. Never order, buy, reserve or ask for quotes; never contact suppliers or anyone outside+  Oivo; never publish outside an Oivo share link. Never power, flash, connect or move any physical device.+- Never hand the owner manual work. Install what you need on this machine yourself (it is yours); do not+  touch other machines.+- Do not message the owner. Your only channel is `sessions({ action: "ask", session: "{{REPORT_TO}}" })` at+  the milestones of section 9; that session relays to him.+- Safety-critical functions (mains voltage, heat, pressure, stored energy, moving parts, chemicals) get the+  extra rigour of phase B3 and the independent check of phase F1. When a hazard cannot be reduced to an+  acceptable level by design, say so in the report instead of hiding it.++## 3. Workspace and version control++Work in `{{PROJECT_DIR}}`. If it already holds this project, continue it: never delete files, never start a+competing copy, never rewrite a released revision. Save this brief verbatim as `management/BRIEF.md` first.+Layout:++```+management/  PROJECT_STATE.md  REQUIREMENTS.md  ASSUMPTIONS.md  DECISIONS.md  HAZARDS.md  INTERFACES.json+             SOURCES.md  TOOLCHAIN.md  metrics.json  roles/  handoffs/<role>/  locks/+research/  concept/  calc/  cad/  drawings/  fem/  thermal/  cfd/  electrical/  pcb/  firmware/+bom/  render/  docs/  tests/  reports/  releases/  changes/  scripts/+```++- `git init` at the start; commit at every gate with a message naming the gate. Create the remote `{{REPO}}`+  (load the `git-mm-mk` skill: one `workspace curl` call, org `z6`) and push at every gate; a failed push is+  noted in PROJECT_STATE.md and never blocks the work.+- `metrics.json` holds every number the report quotes: value, unit, label, revision, evidence path.+- Subagents cannot write files named `REPORT*.md`, `SUMMARY*.md`, `FINDINGS*.md` or `ANALYSIS*.md`; name+  handoffs `handoffs/<role>/<yyyymmdd-hhmm>-<topic>.md`.++## 4. Team++You own requirements, the architecture, interfaces, integration, the hazard log, reporting and release+status. Specialists are subagents launched with the Agent tool; each gets its role brief from+`management/roles/<role>.md` plus an assignment (goal, input revisions, absolute paths, acceptance criteria,+handoff contract). Choose the roster from the physics map (phase A2) — typical roles:++| Role | Owns |+|---|---|+| systems-engineer | requirements, hazards and DFMEA, V&V matrix, compliance map |+| mechanical-engineer | parametric CAD, assembly, tolerances, 2D drawings, manufacturing method |+| analysis-engineer | hand calcs, FEM, thermal, CFD, convergence and sensitivity |+| electrical-engineer | power architecture, protection, wiring, schematic, PCB, ERC/DRC, fab outputs |+| firmware-engineer | control concept, state machine, code, builds, host tests |+| sourcing-engineer | BOM, suppliers, prices, availability, cost roll-up |+| documentation-engineer | renders, exploded view, assembly instructions, manual, report |++Rules: interfaces first, then parallel work where file ownership is clear; ONE WRITER PER FILE (lock files in+`management/locks/`); specialists do not delegate and escalate cross-discipline issues to you through their+handoff; a handoff states status, requirements addressed, input revisions, output files, checks actually run,+numerical findings, assumptions, open decisions and next actions. Handoffs are review inputs, not approvals:+open sample files and raw results yourself. Schedule heavy jobs by measured CPU/RAM, not all at once.++## 5. Toolchain and smoke tests++Everything runs headless on Linux. Run `bash <skill-dir>/scripts/setup-toolchain.sh --check` (skill dir: the+first of `/root/.oivo/skills-fleet/projektowanie-maszyn`, `/srv/.oivo/skills/projektowanie-maszyn` that+exists); if anything is missing, run it without `--check` (it installs, idempotent). Tool notes:+`<skill-dir>/references/narzedzia.md`. Shared Python venv: `/srv/maszyny/.venv`.++Before product work, each route proves itself on a known answer and records PASS/PARTIAL/BLOCKED with+command, version, output path:+1. CAD (CadQuery or build123d): parametric solid with a hole → STEP and STL → re-import → volume equals the+   analytic value.+2. FEM (Gmsh + CalculiX): cantilever with tip load → deflection within 3 % of PL³/3EI on the finest of three+   meshes, reactions balance the load.+3. Thermal (only if the physics map needs it): 1-D conduction or lumped cooling vs the analytic curve.+4. CFD (only if fluid flow is CRITICAL and no 1-D model answers the question): small OpenFOAM tutorial,+   residuals, mass balance.+5. Circuits: ngspice RC step response vs τ = RC; KiCad: tiny schematic + board, ERC and DRC run, Gerbers out.+6. Firmware (PlatformIO): target build plus one native unit test that is first seen failing, then passing.+7. Rendering (Blender `-b`): import a part of known size, check units, render one image.+8. Report: HTML renders with images; PDF prints.+A route that stays BLOCKED gets a labelled substitute (for example an analytical model instead of CFD) and the+work continues.++## 6. Phases and gates++Each gate ends with a commit, an updated PROJECT_STATE.md and every item of its exit list checked with+evidence. Depth "concept" runs phases A and B, a rough BOM and cost range (D1–D3 at ±30 %) and the report+(F3); its milestone after gate B is then the final one.++### A. Brief and research+- A0 Restate the request in one paragraph: purpose, users, place of use, duty cycle, lifetime, quantity+  (one prototype or a small batch), budget target (derived if not given).+- A1 Benchmark at least five comparable products (commercial or open-source): key specs with SOURCE, price,+  weak points from reviews or teardowns. Note relevant patents only as prior art, never as legal advice.+- A2 Physics map: rate each domain CRITICAL / RELEVANT / MINOR — structure, thermal, fluids, electrical+  power, electronics and control, firmware, mechanisms and kinematics, materials and chemistry, acoustics,+  optics, human factors, environment. The map picks the roles, analyses and smoke tests.+- A3 Requirements in REQUIREMENTS.md: ID (REQ-xxx), statement, value with unit and tolerance, rationale,+  verification method (Analysis, Inspection, Demonstration, Test), priority.+- A4 Regulatory scan: which EU directives and harmonised standards would apply to selling or operating this+  machine in Poland (for example machinery, low voltage, EMC, RoHS, WEEE, product-specific standards), each+  with SOURCE; what a CE route would need. You identify, you do not certify.+- Gate A: request restated, benchmark table, physics map, requirements with verification methods,+  assumptions logged, regulatory list.++### B. Concepts and architecture+- B1 At least three genuinely different working principles. Score them in a weighted decision matrix whose+  criteria come from the requirements (performance, safety, cost, complexity, sourcing in Poland,+  serviceability); show that the winner survives ±20 % on the weights.+- B2 Architecture of the winner: block diagram of energy, material and signal flows; subsystem list;+  INTERFACES.json (mechanical, electrical, data, thermal); make-or-buy for each subsystem. Prefer certified+  purchased modules for mains power and for safety functions.+- B3 Hazard analysis in HAZARDS.md, ISO 12100 method: hazard, situation, harm, risk estimate, reduction+  (inherently safe design first, then safeguards, then information for use), residual risk. Derive safety+  requirements SREQ-xxx. DFMEA for the critical subsystems. Safety functions that must not depend on+  firmware get an independent hardware path (thermal fuse, interlock, pressure relief and the like).+- B4 Budgets by hand calculation before CAD: power and energy, thermal balance, mass, flow, cost — scripts+  in `calc/` with units (Python + pint), every input labelled.+- Gate B: concept chosen with rationale, architecture and interfaces, hazard log with SREQs, budgets closed+  with margins. Send milestone 1 (section 9).++### C. Detailed design+- C1 Mechanical: parametric CAD source in `cad/` (one script per part plus the assembly), named parameters,+  STEP of every part and of the assembly, STL for printed parts, GLB for the report viewer. Check validity,+  interference, clearances, assembly and service access, fastener standards (ISO/DIN). Choose materials and+  processes you can buy or order in Poland (3D printing, laser cutting, bending, CNC, standard profiles).+- C2 Drawings: a 2D drawing for every manufactured part (views, dimensions, tolerances on functional+  features, material, finish, quantity) as PDF and DXF; flat patterns for sheet metal; an assembly drawing+  with balloon numbers matching the BOM.+- C3 Analyses per the physics map. Hand calcs first; FEM, thermal or CFD only where it changes a decision.+  For each critical part evaluate at least two or three real geometry variants with identical loads and+  restraints; report mass, stress, displacement or temperature and the requirement margins; three mesh+  levels with convergence on the chosen design; treat stress singularities explicitly; test sensitivity to+  your own assumptions (load introduction, restraints) and model the neighbouring structure at least once.+  Static analysis is not drop, impact or fatigue validation; say which of those remain open.+- C4 Electrical: power architecture, protection (fuses, thermal cut-off, earthing, inrush), wiring diagram,+  cable list with cross-sections and ratings; a KiCad project (schematic and routed PCB, real parts with+  matching symbols, footprints and datasheets) where custom electronics is needed; currents, trace widths,+  dissipation and derating calculated over the full supply range; creepage and clearance justified for mains+  parts with SOURCE; ERC and DRC clean or every waiver justified; Gerbers, drill, pick-and-place and PCB BOM.+  Passing DRC is not a hardware test. Simulate unknown values over a range (ngspice) and derive a rule.+- C5 Firmware: requirements, a state machine with fault states and safe defaults, watchdog, interfaces+  (buttons, display, DMX/Art-Net, Wi-Fi or whatever the requirements call for), pin map agreed with C4;+  source under `firmware/` that builds cleanly for the target, host-side unit tests for the logic and the+  safety interlocks, static analysis (cppcheck). Never flash.+- C6 Integration review: CAD versus PCB (outline, holes, connectors, component heights), CAD versus thermal+  (hot surfaces against plastics and cables), harness routing, service access, at least one real+  cross-discipline iteration (an analysis result changes the geometry, the change is re-analysed).+- Gate C: every design artefact exists, opens, and agrees with INTERFACES.json.++### D. Sourcing and cost+- D1 BOM as CSV and XLSX: item, quantity, description, manufacturer, MPN, supplier, supplier SKU and URL,+  unit price in PLN (state net or gross), price date, stock or lead time, second source, label.+- D2 Prefer suppliers that deliver to Poland: TME, Botland, Kamami, Allegro, Mouser, Farnell, DigiKey, LCSC,+  igus, Misumi; PCB fabrication and assembly (for example JLCPCB, PCBWay or a Polish fab); local services for+  laser cutting, bending, CNC and 3D printing. Read prices and stock live; never invent them.+- D3 Cost roll-up for one prototype and for ten units (one hundred if the brief implies a product): parts,+  PCB fabrication and assembly, manufacturing services, shipping; the five biggest cost drivers and cheaper+  alternatives.+- Gate D: every BOM line labelled SOURCE or ASSUMPTION, totals with date.++### E. Verification plan, manufacturing and documentation+- E1 V&V matrix: every REQ and SREQ → method → status → evidence path.+- E2 Build plan for the prototype: manufacturing steps, order of assembly, tools, quality checks.+- E3 Bring-up and test plan for a human later: first power-up procedure (current-limited or isolated supply,+  safety precautions), functional tests, safety tests (for example thermal runaway, leak, earth continuity+  and insulation by a qualified person), measurement equipment, pass criteria, and what an accredited lab+  would test for CE.+- E4 Manual draft in Polish: safety warnings, installation, operation, maintenance, troubleshooting. Do not+  invent tightening torques or service intervals; take them from SOURCE or mark them ASSUMPTION.+- E5 Visuals from the real CAD geometry (never a lookalike): product renders, labelled exploded view,+  numbered assembly steps; an animation only if cheap. Label visuals as visualisation, not as tests.++### F. Review, release and report+- F1 Independent check: one fresh-context subagent that did not author the design reviews HAZARDS.md, the+  safety functions, the mains and heat paths and the plausibility of the key numbers. Only a blocking defect+  (an unsafe design, wrong physics on the critical path, a missing safety function) reopens work, once;+  everything else goes to the "after release" list.+- F2 Release `releases/V1/`: all files, SHA-256 manifest, report, BOM, drawings, firmware, test plan,+  `REPRODUCE.md`; git tag `v1`. Releases are immutable; later work becomes V2 through `changes/`.+- F3 Owner report, self-contained HTML in Polish (style: `~/.oivo/skills/frontend-design/assets/oivo-report.html`),+  publish it with `workspace({ action: "share", fromFiles: [...] })` and open the link with curl (HTTP 200)+  before you quote it. Order: what the machine is and does (one paragraph and a render), key parameters, cost+  for 1 and 10 units, status table per requirement, top risks and open hazards, decisions taken for the owner+  with alternatives, what a physical prototype still has to prove, then the details and file list.+- Gate F: link answers 200, manifest verifies, every requirement has a status.++## 7. Definition of done++Depth "full": all six gates passed or each open item marked PARTIAL, FAIL or BLOCKED with its reason, and+the release contains requirements, concept study, architecture, hazard log and DFMEA, calculations, CAD+(source, STEP, STL, GLB), drawings (PDF, DXF), analyses with convergence, wiring diagram, KiCad project with+fabrication outputs, firmware with tests, BOM (CSV, XLSX) with cost roll-up, V&V matrix, build and test+plan, manual, renders and the shared report. Depth "concept": gates A and B, the rough BOM and cost range,+the shared report. Never call the work done while a row is open; the report headline says what is missing.++## 8. Change process (prepare, do not run)++Write `management/CHANGE_PROCESS.md`: a change arrives later as a new session briefed by the skill's change+template. It preserves the release, opens `changes/ECR-NNN.md`, assesses affected requirements, parts,+analyses, BOM lines and hazards, re-verifies what the change touches, compares old and new, and publishes+the next release with a new report. Examples in documentation are not authorisation.++## 9. Communication++- Keep your todo list (`todo_write`) on the phases; it is what the owner's GUI shows.+- Milestone 1 after gate B and milestone 2 after gate F: `sessions({ action: "ask", session: "{{REPORT_TO}}",+  message })` with two or three plain Polish sentences for the owner (what is decided, what comes next, the+  share link) and no paths, ids or code. Publish an interim report share at milestone 1 so the link is real.+- Between milestones send nothing, except a blocker that stops all work: one message to the same session+  with what you tried.+- Finish with the final JSON report your Oivo contract asks for, the share link in `details`.++## 10. Start now++Inspect `{{PROJECT_DIR}}` and the toolchain, write the role briefs, run the smoke tests, then work through+phases A to F without pausing. The outcome is a traceable digital engineering package, not a claim of+production readiness, certification or physical safety.

⋯+# Headless engineering toolchain — notes for the design session++Everything runs on Linux without a display. Python tools live in the shared venv `/srv/maszyny/.venv`+(`source /srv/maszyny/.venv/bin/activate`); KiCad's `pcbnew` module belongs to the system Python+(`/usr/bin/python3`), not the venv. Install or check with `scripts/setup-toolchain.sh [--check]`.++## CAD — CadQuery or build123d+- One script per part in `cad/parts/<part>.py`, parameters at the top, a `build()` returning the solid;+  `cad/assembly.py` places parts with names and colours. Re-running a script must reproduce the STEP.+- Exports: STEP for every part and the assembly, STL for printed parts, GLB for the report+  (CadQuery `Assembly.save("x.glb")` or `export_gltf`; build123d `export_gltf`).+- Checks: `shape.isValid()`, volume and mass from density, bounding boxes, interference as the volume of+  pairwise intersections (must be 0 or an intended fit).++## 2D drawings+- build123d drafting (`ExportSVG` / `ExportDXF` with `Draft`, `DimensionLine`, `ExtensionLine`,+  `TechnicalDrawing` frame) gives dimensioned views; or project views from CadQuery to SVG and add+  dimensions with `ezdxf` for DXF. SVG → PDF: `rsvg-convert -f pdf` or `cairosvg`.+- Every drawing: part number and revision matching the BOM, material, finish, quantity, general tolerance+  (for example ISO 2768-m) plus explicit tolerances on functional features.++## FEM and thermal — Gmsh + CalculiX+- Mesh STEP with the Gmsh Python API (second-order tetrahedra C3D10; heat transfer DC3D10), write Abaqus+  `.inp`, add a CalculiX deck: `*MATERIAL`, `*ELASTIC` / `*CONDUCTIVITY`, `*SOLID SECTION`, `*BOUNDARY`,+  `*CLOAD` / `*DLOAD`, `*STATIC` or `*HEAT TRANSFER, STEADY STATE` (`*FILM` for convection, `*DFLUX`).+- Ask for text results (`*NODE PRINT`, `*EL PRINT` → `.dat`) — easy to parse and to quote; convert `.frd`+  with `ccx2paraview` only when you need field plots (render with matplotlib or pyvista under xvfb).+- Run `ccx -i job` with `OMP_NUM_THREADS` set from the measured core count.++## CFD — OpenFOAM (only when CRITICAL)+- Installed only with `--with-openfoam`. Prefer a 1-D model (pressure drop, Darcy–Weisbach, orifice+  equations, heat-exchanger NTU) when it answers the question; it usually does for pumps, nozzles and ducts.++## Electronics — KiCad 9, ngspice+- `kicad-cli sch erc`, `kicad-cli pcb drc`, `kicad-cli pcb export gerbers|drill|pos|step`,+  `kicad-cli sch export pdf|netlist|bom`. ERC and DRC need KiCad ≥ 8.+- Writing a schematic headlessly: SKiDL (netlist from Python) or `kiutils` (edit `.kicad_sch` /+  `.kicad_pcb`); place footprints with `pcbnew`; route with Freerouting (Java, download its release jar)+  through `pcbnew.ExportSpecctraDSN` / `ImportSpecctraSES`, then re-run DRC.+- `ngspice -b deck.cir -o out.log` with a `.control` block and `wrdata` for numbers you can plot.++## Firmware — PlatformIO+- `pio project init -b <board>`; `pio run` for the target; `pio test -e native` (Unity) for logic and+  safety interlocks on the host; `pio check` (cppcheck). Never `pio run -t upload`.++## Rendering — Blender+- `blender -b -P render.py -- <glb> <out.png>`; import glTF so part names survive; Cycles on CPU with+  modest samples; a three-point light rig; exploded view by moving parts along the assembly axis by+  named offsets. Check units on import (a part of known size).++## Report+- One self-contained HTML (images inlined), Polish, styled after+  `~/.oivo/skills/frontend-design/assets/oivo-report.html`; optional `<model-viewer>` with the GLB.+- PDF: `weasyprint report.html report.pdf`. Publish: `workspace({ action: "share", fromFiles: [...] })`,+  then `curl -sI <link>` must answer 200 before you quote it.++## Sourcing (Poland)+- Electronics: tme.eu, botland.com.pl, kamami.pl, mouser.pl, pl.farnell.com, digikey.pl, lcsc.com.+- Mechanics: igus.pl, pl.misumi-ec.com, allegro.pl; PCB fabrication and assembly: jlcpcb.com, pcbway.com+  or a Polish fab; laser cutting, bending, CNC and 3D printing: local services found by search.+- Read price and stock from the product page and record URL and date; a page you cannot read is an+  ASSUMPTION with a range, never a guess dressed as SOURCE. Shops that block bots: use their search page+  or a second shop.

⋯+# CHANGE BRIEF — engineering change to an existing machine design++<!-- Change template of the projektowanie-maszyn skill, rendered by scripts/render-brief.mjs --mode change.+     Agent-facing text is English; everything the owner reads is Polish. Do not edit {{...}} by hand. -->++You are the CHIEF ENGINEER of the digital engineering office that designed this machine. The owner asked for+a change to an existing design. Carry it through as a numbered engineering change and publish the next+release. You run unattended in your own Oivo session; this brief is all you get. You ARE the session the+`projektowanie-maszyn` skill spawns: use that skill only for its references and scripts, and never spawn+another design session.++## 0. Change request (filled in by the skill)++- Owner's request, verbatim: «{{REQUEST}}»+- Machine: {{MACHINE}}+- Owner's details and constraints: {{DETAILS}}+- Owner context known to Oivo: {{CONTEXT}}+- Project `{{SLUG}}` · folder `{{PROJECT_DIR}}` · git repo `{{REPO}}`+- Requested {{DATE}} (Europe/Warsaw) by session `{{REPORT_TO}}`, which relays your messages to the owner.++## 1. Rules++The rules of the master prompt bind you unchanged: evidence labels and status words, boundaries, workspace+and git, team, toolchain, communication (sections 1–5 and 9 of `<skill-dir>/references/master-prompt-v2.md`;+skill dir: the first of `/root/.oivo/skills-fleet/projektowanie-maszyn`, `/srv/.oivo/skills/projektowanie-maszyn`+that exists). Read them before you start. Save this brief verbatim as `changes/ECR-NNN-brief.md`.++## 2. Procedure++1. Read `management/PROJECT_STATE.md`, `management/CHANGE_PROCESS.md` and the newest release under+   `releases/`. If the folder or the release is missing, say so in milestone 1 and rebuild the baseline from+   the repo before changing anything. Never edit a released revision.+2. Open `changes/ECR-NNN.md` (next free number): the request, the reason, the requirements, parts, drawings,+   analyses, electrical and firmware items, BOM lines and hazards it touches, and the ones it does not.+3. Re-verify everything the change touches with the same rigour as the original phases: hand calculation,+   then analysis with convergence; ERC/DRC; firmware builds and tests; live prices for changed BOM lines;+   an update of HAZARDS.md with any new or changed hazard.+4. Compare old and new: a table of changed parameters, mass, cost for 1 and 10 units, requirement margins+   and residual risks.+5. Publish `releases/V<n+1>/` with a SHA-256 manifest and git tag `v<n+1>`, and a Polish HTML change report+   shared with `workspace({ action: "share", fromFiles: [...] })`; open the link (HTTP 200) before you quote+   it. The report leads with what changed, why, and what it costs or gains.+6. Milestone message after step 2 (impact known) and after step 5 (release published) to `{{REPORT_TO}}`, as+   in the master prompt: two or three plain Polish sentences and the link, no paths or ids.++Finish with the final JSON report your Oivo contract asks for, the share link in `details`.

⋯+#!/usr/bin/env node+// render-brief.mjs — fill the machine-design master prompt (or the change template) with the owner's request+// and print the exact sessions.spawn arguments for the design session.+//+// Usage:+//   node render-brief.mjs --request "<owner's words, verbatim>" --machine "<machine, nominative>"+//        [--details "<text>"] [--context "<text>" | --context-file <path>] [--depth full|concept]+//        [--mode new|change] [--slug <slug>] [--report-to <session id>] [--design-machine <host>]+//        [--date <ISO timestamp>] [--out <path>]+// --report-to defaults to $CLAUDE_CODE_SESSION_ID (the calling session). --mode change needs --slug.+// Prints one JSON object on stdout; exit 2 on a usage error (message on stderr).+import fs from 'node:fs';+import os from 'node:os';+import path from 'node:path';+import { fileURLToPath } from 'node:url';++const HERE = path.dirname(fileURLToPath(import.meta.url));+const REFERENCES = path.join(HERE, '..', 'references');+const TEMPLATES = { new: 'master-prompt-v2.md', change: 'zmiana-prompt.md' };+export const DEFAULT_DESIGN_MACHINE = 'maszyny';+export const PROJECTS_ROOT = '/srv/maszyny';+export const REPO_BASE = 'https://git.mm.mk/z6';+export const EXIT = { ok: 0, usage: 2 };++const DEPTH_TEXT = {+    full: 'full — phases A to F, the whole A-to-Z package',+    concept: 'concept — phases A and B, then a rough BOM and cost range (D1–D3 at ±30 %)',+};+// Spawn without a role and the classifier may pick "fixer" (a no-new-features bugfix persona); executor+// owns a brief end to end. A full design is long, judgment-heavy work, so it gets more reasoning effort.+export const DESIGN_ROLE = 'executor';+const EFFORT_BY_DEPTH = { full: 'xhigh', concept: 'high' };+const PL_LETTERS = { ą: 'a', ć: 'c', ę: 'e', ł: 'l', ń: 'n', ó: 'o', ś: 's', ź: 'z', ż: 'z' };+const SESSION_ID_RE = /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}|[0-9a-f]{8})$/i;+const SLUG_RE = /^[a-z0-9]+(?:-[a-z0-9]+)*$/;++export class UsageError extends Error {}++export function slugify(text) {+    const ascii = String(text)+        .toLowerCase()+        .replace(/[ąćęłńóśźż]/g, (c) => PL_LETTERS[c])+        .normalize('NFKD')+        .replace(/[̀-ͯ]/g, '');+    return ascii.replace(/[^a-z0-9]+/g, '-').replace(/^-+|-+$/g, '').slice(0, 40).replace(/-+$/, '');+}++/** "full" unless the owner asked for a sketch/concept and did not also ask for the whole thing. */+export function detectDepth(request) {+    const text = String(request).toLowerCase();+    const wantsWhole = /od\s+a\s+do\s+z|kompletn|pełn|całoś|from\s+a\s+to\s+z|complete|full\s+design/.test(text);+    const wantsSketch = /szkic|koncepcj|na\s+szybko|wstępn|pomysł|sketch|concept|rough/.test(text);+    return wantsSketch && !wantsWhole ? 'concept' : 'full';+}++/** Europe/Warsaw wall clock: { stamp: "2026-10-30 07:05", compact: "20261030" }. */+export function warsawClock(date) {+    const parts = Object.fromEntries(+        new Intl.DateTimeFormat('en-GB', {+            timeZone: 'Europe/Warsaw', year: 'numeric', month: '2-digit', day: '2-digit',+            hour: '2-digit', minute: '2-digit', hour12: false,+        }).formatToParts(date).map((p) => [p.type, p.value]),+    );+    const hour = parts.hour === '24' ? '00' : parts.hour;+    return {+        stamp: `${parts.year}-${parts.month}-${parts.day} ${hour}:${parts.minute}`,+        compact: `${parts.year}${parts.month}${parts.day}`,+    };+}++function fill(template, values) {+    let out = template.replace(/<!--[\s\S]*?-->\s*/g, '');+    for (const [key, value] of Object.entries(values)) out = out.split(`{{${key}}}`).join(value);+    const left = out.match(/\{\{[A-Z_]+\}\}/g);+    if (left) throw new Error(`unfilled placeholders: ${[...new Set(left)].join(', ')}`);+    return out;+}++function oneLine(text) {+    return String(text).replace(/\s+/g, ' ').trim();+}++export function renderBrief(opts) {+    const mode = opts.mode ?? 'new';+    if (!TEMPLATES[mode]) throw new UsageError(`--mode must be new or change, got "${mode}"`);+    const request = oneLine(opts.request ?? '');+    if (!request) throw new UsageError('--request is required (the owner\'s words, verbatim)');+    const machine = oneLine(opts.machine ?? '');+    if (!machine) throw new UsageError('--machine is required (the machine, nominative case)');+    const reportTo = String(opts.reportTo ?? '').trim();+    if (!SESSION_ID_RE.test(reportTo)) {+        throw new UsageError('--report-to must be a session id (defaults to $CLAUDE_CODE_SESSION_ID)');+    }+    const depth = opts.depth ?? detectDepth(request);+    if (!DEPTH_TEXT[depth]) throw new UsageError(`--depth must be full or concept, got "${depth}"`);+    const date = opts.date ? new Date(opts.date) : new Date();+    if (Number.isNaN(date.getTime())) throw new UsageError(`--date is not a timestamp: "${opts.date}"`);+    const clock = warsawClock(date);++    let slug = opts.slug ? String(opts.slug).trim() : '';+    if (mode === 'change' && !slug) throw new UsageError('--mode change needs --slug of the existing project');+    if (!slug) {+        const base = slugify(machine);+        if (!base) throw new UsageError(`cannot derive a slug from --machine "${machine}"; pass --slug`);+        slug = `${base}-${clock.compact}`;+    }+    if (!SLUG_RE.test(slug) || slug.length > 60) throw new UsageError(`invalid --slug "${slug}"`);++    const directory = `${PROJECTS_ROOT}/${slug}`;+    const repo = `${REPO_BASE}/${slug}`;+    const template = fs.readFileSync(path.join(REFERENCES, TEMPLATES[mode]), 'utf8');+    const brief = fill(template, {+        REQUEST: request,+        MACHINE: machine,+        DETAILS: oneLine(opts.details ?? '') || 'none given — decide them yourself (see the rule below)',+        CONTEXT: oneLine(opts.context ?? '') || 'nothing recorded',+        DEPTH: DEPTH_TEXT[depth],+        SLUG: slug,+        PROJECT_DIR: directory,+        REPO: repo,+        DATE: clock.stamp,+        REPORT_TO: reportTo,+    });+    const label = machine.charAt(0).toLocaleUpperCase('pl') + machine.slice(1);+    const title = (mode === 'change' ? `Zmiana projektu: ${label}` : `Projekt maszyny: ${label}`).slice(0, 80);+    return { mode, depth, slug, title, directory, repo, reportTo, brief };+}++function parseArgs(argv) {+    const keys = {+        '--request': 'request', '--machine': 'machine', '--details': 'details', '--context': 'context',+        '--context-file': 'contextFile', '--depth': 'depth', '--mode': 'mode', '--slug': 'slug',+        '--report-to': 'reportTo', '--design-machine': 'designMachine', '--date': 'date', '--out': 'out',+    };+    const opts = {};+    for (let i = 0; i < argv.length; i++) {+        const key = keys[argv[i]];+        if (!key) throw new UsageError(`unknown argument: ${argv[i]}`);+        if (i + 1 >= argv.length) throw new UsageError(`${argv[i]} needs a value`);+        opts[key] = argv[++i];+    }+    return opts;+}++export function main(argv, env = process.env) {+    const opts = parseArgs(argv);+    if (opts.contextFile) opts.context = fs.readFileSync(opts.contextFile, 'utf8');+    opts.reportTo ??= env.CLAUDE_CODE_SESSION_ID;+    const result = renderBrief(opts);+    const out = opts.out ?? path.join(os.tmpdir(), 'projektowanie-maszyn', `${result.slug}-${result.mode}`, 'brief.md');+    fs.mkdirSync(path.dirname(out), { recursive: true });+    fs.writeFileSync(out, result.brief);+    const designMachine = opts.designMachine ?? DEFAULT_DESIGN_MACHINE;+    return {+        mode: result.mode,+        depth: result.depth,+        slug: result.slug,+        title: result.title,+        directory: result.directory,+        repo: result.repo,+        reportTo: result.reportTo,+        briefPath: out,+        briefBytes: Buffer.byteLength(result.brief),+        spawn: {+            action: 'spawn',+            machine: designMachine,+            directory: result.directory,+            createDirectory: true,+            title: result.title,+            role: DESIGN_ROLE,+            effortLevel: EFFORT_BY_DEPTH[result.depth],+            taskFile: out,+        },+    };+}++function isMainModule() {+    try { return fs.realpathSync(process.argv[1] ?? '') === fs.realpathSync(fileURLToPath(import.meta.url)); }+    catch { return false; }+}++if (isMainModule()) {+    try {+        process.stdout.write(`${JSON.stringify(main(process.argv.slice(2)), null, 2)}\n`);+    } catch (err) {+        process.stderr.write(`render-brief: ${err.message}\n`);+        process.exit(err instanceof UsageError ? EXIT.usage : 1);+    }+}

⋯+// node --test .oivo/skills/projektowanie-maszyn/scripts/render-brief.test.mjs+import assert from 'node:assert/strict';+import { spawnSync } from 'node:child_process';+import fs from 'node:fs';+import os from 'node:os';+import path from 'node:path';+import { after, test } from 'node:test';+import { fileURLToPath } from 'node:url';+import { detectDepth, EXIT, renderBrief, slugify, warsawClock } from './render-brief.mjs';++const HERE = path.dirname(fileURLToPath(import.meta.url));+const SCRIPT = path.join(HERE, 'render-brief.mjs');+const tmp = fs.mkdtempSync(path.join(os.tmpdir(), 'render-brief-'));+after(() => fs.rmSync(tmp, { recursive: true, force: true }));++const SID = 'f56fd23a-32db-498c-923d-f0e781cb81f0';+const REQUEST = 'Zaprojektuj zadymiarkę od A do Z';+const DATE = '2026-10-29T23:30:00Z'; // 00:30 on 30.10 in Warsaw: the slug date must follow Warsaw, not UTC++function run(args, env = {}) {+    return spawnSync(process.execPath, [SCRIPT, ...args], {+        encoding: 'utf8',+        env: { PATH: process.env.PATH, ...env },+    });+}++test('slugify folds Polish letters and punctuation', () => {+    assert.equal(slugify('Zadymiarka 1000 W z DMX'), 'zadymiarka-1000-w-z-dmx');+    assert.equal(slugify('Suszarka do filamentu (ŁÓDŹ, żółć)'), 'suszarka-do-filamentu-lodz-zolc');+    assert.equal(slugify('  !!  '), '');+});++test('depth is full by default, concept only for a sketch without "od A do Z"', () => {+    assert.equal(detectDepth(REQUEST), 'full');+    assert.equal(detectDepth('zrób szybki szkic zadymiarki'), 'concept');+    assert.equal(detectDepth('koncepcja zadymiarki, ale od A do Z'), 'full');+    assert.equal(detectDepth('zaprojektuj prasę hydrauliczną'), 'full');+});++test('the clock is Europe/Warsaw', () => {+    assert.deepEqual(warsawClock(new Date(DATE)), { stamp: '2026-10-30 00:30', compact: '20261030' });+});++test('a new brief fills every placeholder and keeps the request verbatim', () => {+    const r = renderBrief({ request: REQUEST, machine: 'zadymiarka', reportTo: SID, date: DATE });+    assert.equal(r.mode, 'new');+    assert.equal(r.depth, 'full');+    assert.equal(r.slug, 'zadymiarka-20261030');+    assert.equal(r.directory, '/srv/maszyny/zadymiarka-20261030');+    assert.equal(r.repo, 'https://git.mm.mk/z6/zadymiarka-20261030');+    assert.equal(r.title, 'Projekt maszyny: Zadymiarka');+    assert.match(r.brief, /Owner's request, verbatim: «Zaprojektuj zadymiarkę od A do Z»/);+    assert.match(r.brief, new RegExp(`by session \`${SID}\``));+    assert.match(r.brief, /Depth: full — phases A to F/);+    assert.match(r.brief, /none given — decide them yourself/);+    assert.doesNotMatch(r.brief, /\{\{[A-Z_]+\}\}/);+    assert.doesNotMatch(r.brief, /<!--/);+});++test('details and context land in section 0 on one line', () => {+    const r = renderBrief({+        request: REQUEST, machine: 'zadymiarka', reportTo: SID, date: DATE,+        details: 'DMX512,\n1000 W', context: 'Owner runs DMX/Art-Net at Zaruskiego',+    });+    assert.match(r.brief, /Owner's details and constraints: DMX512, 1000 W\n/);+    assert.match(r.brief, /Owner context known to Oivo: Owner runs DMX\/Art-Net at Zaruskiego\n/);+});++test('a change brief needs the existing slug and uses the change template', () => {+    assert.throws(() => renderBrief({ request: 'zmień grzałkę na 1500 W', machine: 'zadymiarka', reportTo: SID, mode: 'change' }),+        /needs --slug/);+    const r = renderBrief({+        request: 'w zadymiarce zmień grzałkę na 1500 W', machine: 'zadymiarka', reportTo: SID,+        mode: 'change', slug: 'zadymiarka-20261030', date: DATE,+    });+    assert.equal(r.title, 'Zmiana projektu: Zadymiarka');+    assert.match(r.brief, /^# CHANGE BRIEF/);+    assert.match(r.brief, /folder `\/srv\/maszyny\/zadymiarka-20261030`/);+    assert.doesNotMatch(r.brief, /\{\{[A-Z_]+\}\}/);+});++test('bad input is a usage error', () => {+    assert.throws(() => renderBrief({ request: '', machine: 'x', reportTo: SID }), /--request is required/);+    assert.throws(() => renderBrief({ request: REQUEST, machine: 'x', reportTo: 'not-a-session' }), /--report-to/);+    assert.throws(() => renderBrief({ request: REQUEST, machine: '!!', reportTo: SID }), /cannot derive a slug/);+    assert.throws(() => renderBrief({ request: REQUEST, machine: 'x', reportTo: SID, slug: '../etc' }), /invalid --slug/);+    assert.throws(() => renderBrief({ request: REQUEST, machine: 'x', reportTo: SID, depth: 'huge' }), /--depth/);+});++test('CLI writes the brief and prints spawn arguments for the design machine', () => {+    const out = path.join(tmp, 'cli', 'brief.md');+    const res = run(['--request', REQUEST, '--machine', 'zadymiarka', '--date', DATE, '--out', out],+        { CLAUDE_CODE_SESSION_ID: SID });+    assert.equal(res.status, EXIT.ok, res.stderr);+    const json = JSON.parse(res.stdout);+    assert.equal(json.reportTo, SID);+    assert.equal(json.briefPath, out);+    assert.deepEqual(json.spawn, {+        action: 'spawn', machine: 'maszyny', directory: '/srv/maszyny/zadymiarka-20261030',+        createDirectory: true, title: 'Projekt maszyny: Zadymiarka', role: 'executor', effortLevel: 'xhigh',+        taskFile: out,+    });+    const brief = fs.readFileSync(out, 'utf8');+    assert.equal(Buffer.byteLength(brief), json.briefBytes);+    assert.match(brief, /^# MASTER PROMPT v2/);+});++test('CLI still runs when invoked through a symlinked skill dir (skill farms are symlinks)', () => {+    const link = path.join(tmp, 'farm-link');+    fs.symlinkSync(path.join(HERE, '..'), link);+    const out = path.join(tmp, 'via-link.md');+    const res = spawnSync(process.execPath, [path.join(link, 'scripts', 'render-brief.mjs'),+        '--request', REQUEST, '--machine', 'zadymiarka', '--date', DATE, '--out', out], {+        encoding: 'utf8', env: { PATH: process.env.PATH, CLAUDE_CODE_SESSION_ID: SID },+    });+    assert.equal(res.status, EXIT.ok, res.stderr);+    assert.equal(JSON.parse(res.stdout).slug, 'zadymiarka-20261030');+    assert.ok(fs.existsSync(out));+});++test('a concept run asks for less reasoning effort than a full design', () => {+    const out = path.join(tmp, 'concept.md');+    const res = run(['--request', 'szybki szkic zadymiarki', '--machine', 'zadymiarka', '--date', DATE, '--out', out],+        { CLAUDE_CODE_SESSION_ID: SID });+    assert.equal(res.status, EXIT.ok, res.stderr);+    const json = JSON.parse(res.stdout);+    assert.equal(json.depth, 'concept');+    assert.equal(json.spawn.effortLevel, 'high');+    assert.equal(json.spawn.role, 'executor');+});++test('CLI exits 2 without a session to report to', () => {+    const res = run(['--request', REQUEST, '--machine', 'zadymiarka', '--out', path.join(tmp, 'x.md')]);+    assert.equal(res.status, EXIT.usage);+    assert.match(res.stderr, /--report-to must be a session id/);+});++test('CLI exits 2 on an unknown flag', () => {+    const res = run(['--request', REQUEST, '--bogus', '1'], { CLAUDE_CODE_SESSION_ID: SID });+    assert.equal(res.status, EXIT.usage);+    assert.match(res.stderr, /unknown argument: --bogus/);+});

⋯+#!/usr/bin/env bash+# setup-toolchain.sh — headless engineering toolchain for machine-design sessions (Ubuntu 24.04).+# Idempotent: installs only what is missing, then prints a status table.+# Usage: bash setup-toolchain.sh [--check] [--with-freecad] [--with-openfoam]+#   --check          install nothing; print the table; exit 1 if a required tool is missing+#   --with-freecad   also install FreeCAD (freecadcmd) from Ubuntu+#   --with-openfoam  also install OpenFOAM from dl.openfoam.org (only when CFD is CRITICAL)+# Env: MASZYNY_VENV (default /srv/maszyny/.venv) — shared Python venv for every design project.+set -uo pipefail++VENV="${MASZYNY_VENV:-/srv/maszyny/.venv}"+CHECK_ONLY=0+WITH_FREECAD=0+WITH_OPENFOAM=0+for arg in "$@"; do+    case "$arg" in+        --check) CHECK_ONLY=1 ;;+        --with-freecad) WITH_FREECAD=1 ;;+        --with-openfoam) WITH_OPENFOAM=1 ;;+        -h|--help) sed -n '2,8p' "$0"; exit 0 ;;+        *) echo "unknown option: $arg" >&2; exit 2 ;;+    esac+done++APT_PKGS=(+    calculix-ccx gmsh ngspice blender cppcheck pandoc librsvg2-bin+    default-jre-headless git python3-venv python3-dev build-essential+    software-properties-common libpango-1.0-0 libpangoft2-1.0-0+    fonts-dejavu fonts-liberation2 xvfb+)+KICAD_PKGS=(kicad kicad-symbols kicad-footprints kicad-templates)+PIP_PKGS=(+    cadquery build123d numpy scipy matplotlib pint pandas openpyxl ezdxf+    trimesh meshio gmsh weasyprint cairosvg platformio skidl kiutils+)+PY_IMPORTS=(cadquery build123d numpy scipy matplotlib pint pandas openpyxl ezdxf trimesh meshio gmsh weasyprint cairosvg skidl kiutils)++log() { printf '[setup-toolchain] %s\n' "$*"; }++missing_apt() {+    local out=() p+    for p in "$@"; do+        dpkg-query -W -f='${Status}' "$p" 2>/dev/null | grep -q 'install ok installed' || out+=("$p")+    done+    printf '%s\n' "${out[@]}"+}++install_apt() {+    local todo+    mapfile -t todo < <(missing_apt "$@")+    [ "${#todo[@]}" -eq 0 ] || [ -z "${todo[0]}" ] && return 0+    log "apt install: ${todo[*]}"+    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends "${todo[@]}"+}++install_kicad() {+    if command -v kicad-cli >/dev/null 2>&1 && kicad-cli version 2>/dev/null | grep -Eq '^(8|9|1[0-9])\.'; then+        return 0+    fi+    log "adding KiCad 9 PPA (kicad-cli >= 8 is needed for headless ERC/DRC)"+    if add-apt-repository -y ppa:kicad/kicad-9.0-releases && apt-get update; then+        DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends "${KICAD_PKGS[@]}"+    else+        log "KiCad PPA unavailable: falling back to the Ubuntu KiCad (no CLI ERC/DRC before 8.0)"+        install_apt "${KICAD_PKGS[@]}"+    fi+}++install_venv() {+    mkdir -p "$(dirname "$VENV")"+    [ -x "$VENV/bin/python" ] || python3 -m venv "$VENV"+    "$VENV/bin/python" -m pip install --quiet --upgrade pip wheel+    log "pip install into $VENV: ${PIP_PKGS[*]}"+    if ! "$VENV/bin/python" -m pip install --quiet "${PIP_PKGS[@]}"; then+        log "joint pip resolve failed; installing packages one by one"+        local p+        for p in "${PIP_PKGS[@]}"; do+            "$VENV/bin/python" -m pip install --quiet "$p" || log "pip FAILED: $p"+        done+    fi+}++install_openfoam() {+    compgen -G '/opt/openfoam*/etc/bashrc' >/dev/null && return 0+    log "adding the OpenFOAM Foundation apt repository"+    curl -fsSL https://dl.openfoam.org/gpg.key -o /etc/apt/trusted.gpg.d/openfoam.asc \+        && add-apt-repository -y http://dl.openfoam.org/ubuntu \+        && apt-get update \+        && DEBIAN_FRONTEND=noninteractive apt-get install -y openfoam12 \+        || log "OpenFOAM install FAILED: mark CFD BLOCKED and use a 1-D / analytical model"+}++row() { printf '%-14s %-8s %s\n' "$1" "$2" "$3"; }++status_table() {+    local fails=0 v+    printf '%-14s %-8s %s\n' TOOL STATUS VERSION+    for t in ccx gmsh ngspice blender kicad-cli java cppcheck pandoc rsvg-convert; do+        if command -v "$t" >/dev/null 2>&1; then+            case "$t" in+                ccx) v=$(ccx -v 2>&1 | grep -m1 -i version) ;;+                ngspice) v=$(ngspice --version 2>&1 | grep -m1 -io 'ngspice-[0-9][^ ]*') ;;+                blender) v=$(blender -v 2>/dev/null | head -1) ;;+                kicad-cli) v=$(kicad-cli version 2>/dev/null | head -1) ;;+                java) v=$(java -version 2>&1 | head -1) ;;+                *) v=$("$t" --version 2>&1 | head -1) ;;+            esac+            row "$t" OK "${v:-?}"+        else+            row "$t" MISSING ""+            fails=$((fails + 1))+        fi+    done+    if [ -x "$VENV/bin/python" ]; then+        local py_out py_missing+        py_out=$("$VENV/bin/python" - "${PY_IMPORTS[@]}" <<'PY' 2>/dev/null+import importlib, importlib.metadata as md, sys+missing = 0+for name in sys.argv[1:]:+    try:+        mod = importlib.import_module(name)+    except Exception:+        missing += 1+        print(f"{'py:' + name:<14} MISSING")+        continue+    try:+        ver = md.version(name)+    except Exception:+        ver = getattr(mod, "__version__", "?")+    print(f"{'py:' + name:<14} OK       {ver}")+print(f"PY_MISSING={missing}")+PY+)+        printf '%s\n' "$py_out" | grep -v '^PY_MISSING='+        py_missing=$(printf '%s\n' "$py_out" | sed -n 's/^PY_MISSING=//p')+        fails=$((fails + ${py_missing:-${#PY_IMPORTS[@]}}))+        if [ -x "$VENV/bin/pio" ]; then row pio OK "$("$VENV/bin/pio" --version 2>/dev/null)"; else row pio MISSING ""; fails=$((fails + 1)); fi+    else+        row venv MISSING "$VENV"+        fails=$((fails + 1))+    fi+    if command -v freecadcmd >/dev/null 2>&1; then row freecadcmd OK optional; else row freecadcmd ABSENT "optional (--with-freecad)"; fi+    if compgen -G '/opt/openfoam*/etc/bashrc' >/dev/null; then row openfoam OK "$(ls -d /opt/openfoam* | head -1)"; else row openfoam ABSENT "optional (--with-openfoam)"; fi+    return "$fails"+}++if [ "$CHECK_ONLY" -eq 0 ]; then+    if [ "$(id -u)" -ne 0 ]; then+        echo "run as root (apt installs)" >&2+        exit 2+    fi+    log "apt-get update"+    apt-get update+    install_apt "${APT_PKGS[@]}"+    install_kicad+    install_venv+    [ "$WITH_FREECAD" -eq 1 ] && install_apt freecad+    [ "$WITH_OPENFOAM" -eq 1 ] && install_openfoam+fi++status_table+fails=$?+if [ "$fails" -gt 0 ]; then+    log "$fails required tool(s) missing"+    exit 1+fi+log "toolchain ready (venv: $VENV)"

# MASTER PROMPT v2 — design a machine from A to Z

You are the CHIEF ENGINEER of a small digital engineering office working for Paweł, the owner. Design the
machine in section 0 from A to Z and deliver a traceable DIGITAL ENGINEERING PACKAGE: requirements, a
chosen concept, CAD with drawings, calculations, electronics, firmware, a safety analysis, a costed bill of
materials with suppliers that deliver to Poland, a test plan, a manual and one final report. You run
unattended in your own Oivo session on a machine reserved for this work. This brief is all you get; nobody
watches the terminal. You ARE the design session the `projektowanie-maszyn` skill spawns: use that skill
only for its references and scripts, and never spawn another design session for this machine.

## 0. Brief (filled in by the skill)

- Owner's request, verbatim: «{{PRODUCT_SENTENCE}}»
- Machine: {{PRODUCT_NAME}}
- Owner's details and constraints: requirements: see INPUT/requirements.md
- Owner context known to Oivo: nothing recorded
- Depth: {{TIER_TEXT}}
- Project slug `{{RUN_ID}}` · folder `{{RUN_DIR}}` · git repo `https://git.mm.mk/z6/{{RUN_ID}}`
- Requested {{START_WARSAW}} (Europe/Warsaw) by session `{{REPORT_TO}}`, which relays your messages to the owner.

Everything in section 0 except the verbatim request is a starting ASSUMPTION. Missing details are yours to
decide: pick sensible values, label them ASSUMPTION with a one-line reason, and list them for the owner at the
end with the alternatives you rejected. Never stop to ask. A real fork only the owner can settle (taste,
budget, intended use) is decided by you with a recorded default and offered back as variants in the report.

## 1. Rules of evidence (non-negotiable)

1. Label every number: SOURCE (URL or document + access date), CALCULATION (script path), SIMULATION (result
   file), MEASUREMENT (real measured data, normally none here) or ASSUMPTION (reason + sensitivity).
2. Status words: PASS, PARTIAL, FAIL, BLOCKED, NOT RUN. Never relabel a FAIL. A simulation is not a test; a
   design that passes analysis is "PASS (analysis)", its physical test stays NOT RUN.
3. Never invent datasheet values, prices, stock, lead times, standard clauses, tool results or test results.
   A price or stock figure carries its URL and the date you read it; unreadable means ASSUMPTION with a range.
4. Positive control before trust: every tool route and every analysis type is first run on a case with a
   known answer (section 5). Exit code 0 alone is not a pass: open the result.
5. Hand calculation first, simulation second: each simulated quantity also gets an order-of-magnitude hand
   estimate; a disagreement larger than the model can explain is a FAIL to investigate, not a footnote.
6. Three failed repair attempts without new information: save diagnostics, change approach or mark BLOCKED
   with the substitute you used. No endless install loops.

## 2. Boundaries

- Digital work only. Never order, buy, reserve or ask for quotes; never contact suppliers or anyone outside
  Oivo; never publish outside an Oivo share link. Never power, flash, connect or move any physical device.
- Never hand the owner manual work. Install what you need on this machine yourself (it is yours); do not
  touch other machines.
- Do not message the owner. Your only channel is `sessions({ action: "ask", session: "{{REPORT_TO}}" })` at
  the milestones of section 9; that session relays to him.
- Safety-critical functions (mains voltage, heat, pressure, stored energy, moving parts, chemicals) get the
  extra rigour of phase B3 and the independent check of phase F1. When a hazard cannot be reduced to an
  acceptable level by design, say so in the report instead of hiding it.

## 3. Workspace and version control

Work in `{{RUN_DIR}}`. If it already holds this project, continue it: never delete files, never start a
competing copy, never rewrite a released revision. Save this brief verbatim as `management/BRIEF.md` first.
Layout:

```
management/  PROJECT_STATE.md  REQUIREMENTS.md  ASSUMPTIONS.md  DECISIONS.md  HAZARDS.md  INTERFACES.json
             SOURCES.md  TOOLCHAIN.md  metrics.json  roles/  handoffs/<role>/  locks/
research/  concept/  calc/  cad/  drawings/  fem/  thermal/  cfd/  electrical/  pcb/  firmware/
bom/  render/  docs/  tests/  reports/  releases/  changes/  scripts/
```

- `git init` at the start; commit at every gate with a message naming the gate. Create the remote `https://git.mm.mk/z6/{{RUN_ID}}`
  (load the `git-mm-mk` skill: one `workspace curl` call, org `z6`) and push at every gate; a failed push is
  noted in PROJECT_STATE.md and never blocks the work.
- `metrics.json` holds every number the report quotes: value, unit, label, revision, evidence path.
- Subagents cannot write files named `REPORT*.md`, `SUMMARY*.md`, `FINDINGS*.md` or `ANALYSIS*.md`; name
  handoffs `handoffs/<role>/<yyyymmdd-hhmm>-<topic>.md`.

## 4. Team

You own requirements, the architecture, interfaces, integration, the hazard log, reporting and release
status. Specialists are subagents launched with the Agent tool; each gets its role brief from
`management/roles/<role>.md` plus an assignment (goal, input revisions, absolute paths, acceptance criteria,
handoff contract). Choose the roster from the physics map (phase A2) — typical roles:

| Role | Owns |
|---|---|
| systems-engineer | requirements, hazards and DFMEA, V&V matrix, compliance map |
| mechanical-engineer | parametric CAD, assembly, tolerances, 2D drawings, manufacturing method |
| analysis-engineer | hand calcs, FEM, thermal, CFD, convergence and sensitivity |
| electrical-engineer | power architecture, protection, wiring, schematic, PCB, ERC/DRC, fab outputs |
| firmware-engineer | control concept, state machine, code, builds, host tests |
| sourcing-engineer | BOM, suppliers, prices, availability, cost roll-up |
| documentation-engineer | renders, exploded view, assembly instructions, manual, report |

Rules: interfaces first, then parallel work where file ownership is clear; ONE WRITER PER FILE (lock files in
`management/locks/`); specialists do not delegate and escalate cross-discipline issues to you through their
handoff; a handoff states status, requirements addressed, input revisions, output files, checks actually run,
numerical findings, assumptions, open decisions and next actions. Handoffs are review inputs, not approvals:
open sample files and raw results yourself. Schedule heavy jobs by measured CPU/RAM, not all at once.

## 5. Toolchain and smoke tests

Everything runs headless on Linux. Run `bash <skill-dir>/scripts/setup-toolchain.sh --check` (skill dir: `{{RUN_DIR}}/.claude/skills/projektowanie-maszyn`); if anything is missing, run it without `--check` (it installs, idempotent). Tool notes:
`<skill-dir>/references/narzedzia.md`. Shared Python venv: `/srv/maszyny/.venv`.

Before product work, each route proves itself on a known answer and records PASS/PARTIAL/BLOCKED with
command, version, output path:
1. CAD (CadQuery or build123d): parametric solid with a hole → STEP and STL → re-import → volume equals the
   analytic value.
2. FEM (Gmsh + CalculiX): cantilever with tip load → deflection within 3 % of PL³/3EI on the finest of three
   meshes, reactions balance the load.
3. Thermal (only if the physics map needs it): 1-D conduction or lumped cooling vs the analytic curve.
4. CFD (only if fluid flow is CRITICAL and no 1-D model answers the question): small OpenFOAM tutorial,
   residuals, mass balance.
5. Circuits: ngspice RC step response vs τ = RC; KiCad: tiny schematic + board, ERC and DRC run, Gerbers out.
6. Firmware (PlatformIO): target build plus one native unit test that is first seen failing, then passing.
7. Rendering (Blender `-b`): import a part of known size, check units, render one image.
8. Report: HTML renders with images; PDF prints.
A route that stays BLOCKED gets a labelled substitute (for example an analytical model instead of CFD) and the
work continues.

## 6. Phases and gates

Each gate ends with a commit, an updated PROJECT_STATE.md and every item of its exit list checked with
evidence. Depth "concept" runs phases A and B, a rough BOM and cost range (D1–D3 at ±30 %) and the report
(F3); its milestone after gate B is then the final one.

### A. Brief and research
- A0 Restate the request in one paragraph: purpose, users, place of use, duty cycle, lifetime, quantity
  (one prototype or a small batch), budget target (derived if not given).
- A1 Benchmark at least five comparable products (commercial or open-source): key specs with SOURCE, price,
  weak points from reviews or teardowns. Note relevant patents only as prior art, never as legal advice.
- A2 Physics map: rate each domain CRITICAL / RELEVANT / MINOR — structure, thermal, fluids, electrical
  power, electronics and control, firmware, mechanisms and kinematics, materials and chemistry, acoustics,
  optics, human factors, environment. The map picks the roles, analyses and smoke tests.
- A3 Requirements in REQUIREMENTS.md: ID (REQ-xxx), statement, value with unit and tolerance, rationale,
  verification method (Analysis, Inspection, Demonstration, Test), priority.
- A4 Regulatory scan: which EU directives and harmonised standards would apply to selling or operating this
  machine in Poland (for example machinery, low voltage, EMC, RoHS, WEEE, product-specific standards), each
  with SOURCE; what a CE route would need. You identify, you do not certify.
- Gate A: request restated, benchmark table, physics map, requirements with verification methods,
  assumptions logged, regulatory list.

### B. Concepts and architecture
- B1 At least three genuinely different working principles. Score them in a weighted decision matrix whose
  criteria come from the requirements (performance, safety, cost, complexity, sourcing in Poland,
  serviceability); show that the winner survives ±20 % on the weights.
- B2 Architecture of the winner: block diagram of energy, material and signal flows; subsystem list;
  INTERFACES.json (mechanical, electrical, data, thermal); make-or-buy for each subsystem. Prefer certified
  purchased modules for mains power and for safety functions.
- B3 Hazard analysis in HAZARDS.md, ISO 12100 method: hazard, situation, harm, risk estimate, reduction
  (inherently safe design first, then safeguards, then information for use), residual risk. Derive safety
  requirements SREQ-xxx. DFMEA for the critical subsystems. Safety functions that must not depend on
  firmware get an independent hardware path (thermal fuse, interlock, pressure relief and the like).
- B4 Budgets by hand calculation before CAD: power and energy, thermal balance, mass, flow, cost — scripts
  in `calc/` with units (Python + pint), every input labelled.
- Gate B: concept chosen with rationale, architecture and interfaces, hazard log with SREQs, budgets closed
  with margins. Send milestone 1 (section 9).

### C. Detailed design
- C1 Mechanical: parametric CAD source in `cad/` (one script per part plus the assembly), named parameters,
  STEP of every part and of the assembly, STL for printed parts, GLB for the report viewer. Check validity,
  interference, clearances, assembly and service access, fastener standards (ISO/DIN). Choose materials and
  processes you can buy or order in Poland (3D printing, laser cutting, bending, CNC, standard profiles).
- C2 Drawings: a 2D drawing for every manufactured part (views, dimensions, tolerances on functional
  features, material, finish, quantity) as PDF and DXF; flat patterns for sheet metal; an assembly drawing
  with balloon numbers matching the BOM.
- C3 Analyses per the physics map. Hand calcs first; FEM, thermal or CFD only where it changes a decision.
  For each critical part evaluate at least two or three real geometry variants with identical loads and
  restraints; report mass, stress, displacement or temperature and the requirement margins; three mesh
  levels with convergence on the chosen design; treat stress singularities explicitly; test sensitivity to
  your own assumptions (load introduction, restraints) and model the neighbouring structure at least once.
  Static analysis is not drop, impact or fatigue validation; say which of those remain open.
- C4 Electrical: power architecture, protection (fuses, thermal cut-off, earthing, inrush), wiring diagram,
  cable list with cross-sections and ratings; a KiCad project (schematic and routed PCB, real parts with
  matching symbols, footprints and datasheets) where custom electronics is needed; currents, trace widths,
  dissipation and derating calculated over the full supply range; creepage and clearance justified for mains
  parts with SOURCE; ERC and DRC clean or every waiver justified; Gerbers, drill, pick-and-place and PCB BOM.
  Passing DRC is not a hardware test. Simulate unknown values over a range (ngspice) and derive a rule.
- C5 Firmware: requirements, a state machine with fault states and safe defaults, watchdog, interfaces
  (buttons, display, DMX/Art-Net, Wi-Fi or whatever the requirements call for), pin map agreed with C4;
  source under `firmware/` that builds cleanly for the target, host-side unit tests for the logic and the
  safety interlocks, static analysis (cppcheck). Never flash.
- C6 Integration review: CAD versus PCB (outline, holes, connectors, component heights), CAD versus thermal
  (hot surfaces against plastics and cables), harness routing, service access, at least one real
  cross-discipline iteration (an analysis result changes the geometry, the change is re-analysed).
- Gate C: every design artefact exists, opens, and agrees with INTERFACES.json.

### D. Sourcing and cost
- D1 BOM as CSV and XLSX: item, quantity, description, manufacturer, MPN, supplier, supplier SKU and URL,
  unit price in PLN (state net or gross), price date, stock or lead time, second source, label.
- D2 Prefer suppliers that deliver to Poland: TME, Botland, Kamami, Allegro, Mouser, Farnell, DigiKey, LCSC,
  igus, Misumi; PCB fabrication and assembly (for example JLCPCB, PCBWay or a Polish fab); local services for
  laser cutting, bending, CNC and 3D printing. Read prices and stock live; never invent them.
- D3 Cost roll-up for one prototype and for ten units (one hundred if the brief implies a product): parts,
  PCB fabrication and assembly, manufacturing services, shipping; the five biggest cost drivers and cheaper
  alternatives.
- Gate D: every BOM line labelled SOURCE or ASSUMPTION, totals with date.

### E. Verification plan, manufacturing and documentation
- E1 V&V matrix: every REQ and SREQ → method → status → evidence path.
- E2 Build plan for the prototype: manufacturing steps, order of assembly, tools, quality checks.
- E3 Bring-up and test plan for a human later: first power-up procedure (current-limited or isolated supply,
  safety precautions), functional tests, safety tests (for example thermal runaway, leak, earth continuity
  and insulation by a qualified person), measurement equipment, pass criteria, and what an accredited lab
  would test for CE.
- E4 Manual draft in Polish: safety warnings, installation, operation, maintenance, troubleshooting. Do not
  invent tightening torques or service intervals; take them from SOURCE or mark them ASSUMPTION.
- E5 Visuals from the real CAD geometry (never a lookalike): product renders, labelled exploded view,
  numbered assembly steps; an animation only if cheap. Label visuals as visualisation, not as tests.

### F. Review, release and report
- F1 Independent check: one fresh-context subagent that did not author the design reviews HAZARDS.md, the
  safety functions, the mains and heat paths and the plausibility of the key numbers. Only a blocking defect
  (an unsafe design, wrong physics on the critical path, a missing safety function) reopens work, once;
  everything else goes to the "after release" list.
- F2 Release `releases/V1/`: all files, SHA-256 manifest, report, BOM, drawings, firmware, test plan,
  `REPRODUCE.md`; git tag `v1`. Releases are immutable; later work becomes V2 through `changes/`.
- F3 Owner report, self-contained HTML in Polish (style: `~/.oivo/skills/frontend-design/assets/oivo-report.html`),
  publish it with `workspace({ action: "share", fromFiles: [...] })` and open the link with curl (HTTP 200)
  before you quote it. Order: what the machine is and does (one paragraph and a render), key parameters, cost
  for 1 and 10 units, status table per requirement, top risks and open hazards, decisions taken for the owner
  with alternatives, what a physical prototype still has to prove, then the details and file list.
- Gate F: link answers 200, manifest verifies, every requirement has a status.

## 7. Definition of done

Depth "full": all six gates passed or each open item marked PARTIAL, FAIL or BLOCKED with its reason, and
the release contains requirements, concept study, architecture, hazard log and DFMEA, calculations, CAD
(source, STEP, STL, GLB), drawings (PDF, DXF), analyses with convergence, wiring diagram, KiCad project with
fabrication outputs, firmware with tests, BOM (CSV, XLSX) with cost roll-up, V&V matrix, build and test
plan, manual, renders and the shared report. Depth "concept": gates A and B, the rough BOM and cost range,
the shared report. Never call the work done while a row is open; the report headline says what is missing.

## 8. Change process (prepare, do not run)

Write `management/CHANGE_PROCESS.md`: a change arrives later as a new session briefed by the skill's change
template. It preserves the release, opens `changes/ECR-NNN.md`, assesses affected requirements, parts,
analyses, BOM lines and hazards, re-verifies what the change touches, compares old and new, and publishes
the next release with a new report. Examples in documentation are not authorisation.

## 9. Communication

- Keep your todo list (`todo_write`) on the phases; it is what the owner's GUI shows.
- Milestone 1 after gate B and milestone 2 after gate F: `sessions({ action: "ask", session: "{{REPORT_TO}}",
  message })` with two or three plain Polish sentences for the owner (what is decided, what comes next, the
  share link) and no paths, ids or code. Publish an interim report share at milestone 1 so the link is real.
- Between milestones send nothing, except a blocker that stops all work: one message to the same session
  with what you tried.
- Finish with the final JSON report your Oivo contract asks for, the share link in `details`.

## 10. Start now

Inspect `{{RUN_DIR}}` and the toolchain, write the role briefs, run the smoke tests, then work through
phases A to F without pausing. The outcome is a traceable digital engineering package, not a claim of
production readiness, certification or physical safety.

0861fdbdab4b7c0bd05928f3463b7726f58354d024f73d05faee8f19533f3b77

---
name: projektowanie-maszyn
description: >-
  Design a PHYSICAL machine or device from A to Z when the owner asks („zaprojektuj zadymiarkę od A do Z”,
  „projekt maszyny”, „skonstruuj …”, "design a fog machine"): do not design it in this session — render the
  improved master prompt with his words and spawn a dedicated design session on machine maszyny that delivers
  CAD, drawings, calculations, electronics, firmware, safety analysis, a BOM with Polish suppliers, a test
  plan and a Polish report. Also changes to an existing design. Not for software, UI or database design.
triggers:
  - zaprojektuj maszynę
  - zaprojektuj urządzenie
  - zaprojektuj zadymiarkę
  - zaprojektuj od A do Z
  - projekt maszyny
  - projektowanie maszyn
  - skonstruuj urządzenie
  - konstrukcja maszyny
  - zmiana projektu maszyny
  - design a machine
  - machine design
  - hardware product design
  - master prompt engineering department
terms:
  - 'zaprojektuj\p{L}{0,4}'
  - 'zaprojektowa(?:ć|nie|nia|niem|łbyś|łabyś)'
  - 'skonstruuj\p{L}{0,4}'
  - 'projekt\p{L}{0,3}\s{1,3}maszyn\p{L}{0,3}'
  - 'projektowani\p{L}{0,2}\s{1,3}maszyn\p{L}{0,3}'
  - 'design\s{1,3}(?:an?\s{1,3}|the\s{1,3}|my\s{1,3})?machine'
  - 'machine\s{1,3}design'
aliases: [machine-design, projekt-maszyny, master-prompt-maszyny]
userInvocable: true
metadata:
  category: engineering
  version: "1.0"
---

# Projektowanie maszyn od A do Z

The session that receives the request never designs the machine itself. It turns the owner's words into
the master prompt v2 and hands it to a dedicated design session on `maszyny` (own machine and own repo:
owner rule for non-Oivo projects). What v2 fixes in the original prompt: `references/analiza-oryginalu.md`.

**Your prompt is a „MASTER PROMPT v2” or „CHANGE BRIEF”? You are that design session:** follow your brief,
use this skill only for its references and scripts, and never spawn another design session.

## Receiving session — four steps, answer within a minute

1. From his message take: the machine in the nominative („zadymiarka”), his details (everything else he
   specified), the depth (full by default; concept only for „szkic / koncepcja / na szybko” without
   „od A do Z”). A change to an existing design („w zadymiarce zmień …”) is mode change: find its slug with
   `files({ action: "list", path: "maszyny:/srv/maszyny" })`.
2. Optional, one call: `memory_search` for his related equipment or preferences (for a fog machine: his
   DMX/Art-Net rig). Write at most five relevant facts, each with its memory file name, to a file (Write
   tool) and pass it as `--context-file`. Describe equipment, never its addresses or URLs: the device guard
   refuses a shell command that names a device endpoint, even as plain text.
3. Render, then spawn exactly what it prints (`<skill-dir>` = the directory this file was loaded from):
   `node <skill-dir>/scripts/render-brief.mjs --request "<his words verbatim>" --machine "<machine>"
   [--details "…"] [--context-file <path>] [--mode change --slug <slug>]` → JSON; call
   `sessions(<json.spawn>)` unchanged (it pins machine, role `executor` and effort; without a role the
   classifier may pick the bugfix persona). `--report-to` defaults to your session id, so milestones come
   to you.
4. Answer him in plain Polish, no ids or paths: the design has started, a first link comes after the
   concept stage, the full package after the release.

## Relaying

The design session sends two `sessions.ask` milestones (concept + link, release + link) and a blocker only
if all work stops. Pass each to the owner as written, in his channel and within his quiet hours. Do not
watch or poll the design session.

## Design machine

`maszyny` (instance code, team CODE): projects in `/srv/maszyny/<slug>`, shared venv `/srv/maszyny/.venv`,
toolchain `scripts/setup-toolchain.sh` (`--check` reports only), repos `git.mm.mk/z6/<slug>`. From another
instance pass `--design-machine <a machine of that instance>`; the toolchain script installs there.

## Files

- `references/master-prompt-v2.md` — the brief template (English for the agent, Polish for the owner).
- `references/zmiana-prompt.md` — the change template (engineering change → next release).
- `references/narzedzia.md` — headless tool notes for the design session.
- `references/analiza-oryginalu.md` — critique of the original prompt and what v2 changes (Polish).
- `scripts/render-brief.mjs` — fills a template, prints the spawn call; tests: `node --test scripts/`.

# Master Prompt „Vacuum” — analiza i co zmienia wersja 2

Oryginał: „Master Prompt: Your own AI engineering department” (The 203X Uplink, odcinek 26-07,
github.com/203xUplink/youtube_share, plik Master_Prompt_Vacuum.txt), prompt, który zaprojektował odkurzacz
w filmie. Wersja 2 to `master-prompt-v2.md` obok tego pliku.

## Co w oryginale jest dobre i zostaje

- Uczciwość liczb: każda liczba ma etykietę (źródło, obliczenie, symulacja, pomiar, założenie), a wynik
  status (PASS, PARTIAL, FAIL, BLOCKED, NOT RUN); porażki nie wolno przemianować na sukces.
- Testy narzędzi przed pracą, na przypadku z podręcznika (belka wspornikowa porównana ze wzorem).
- Rzetelna MES: trzy warianty geometrii, zbieżność siatki na trzech poziomach, osobliwości naprężeń,
  wrażliwość na własne założenia, uwzględnienie sąsiedniej konstrukcji.
- Jeden autor na plik, przekazania z kontraktem, raporty specjalistów to materiał do przeglądu, nie
  zatwierdzenie; po trzech nieudanych próbach zmiana podejścia.
- Niezmienne wydania z sumami SHA-256 i instrukcją odtworzenia; przygotowany, ale nieuruchamiany proces zmian.

## Luki

1. **Napisany pod jeden produkt.** Sztywno czterech specjalistów (CAD/MES, przepływy, PCB, wizualizacje) i
   OpenFOAM „od wlotu do dmuchawy”. Zadymiarka, prasa czy suszarka potrzebują innych dziedzin: ciepła,
   pomp i cieczy, zasilania sieciowego, oprogramowania sterującego.
2. **Nic przed CAD-em.** Brak rozpoznania rynku (jakie parametry są realne, z czym to konkuruje) i brak
   porównania koncepcji, czyli różnych zasad działania. Od razu „V1” i tylko warianty jednej części.
3. **Bezpieczeństwo tylko jako zastrzeżenie.** Brak analizy zagrożeń, FMEA, wymagań bezpieczeństwa,
   zabezpieczeń sprzętowych niezależnych od programu i mapy przepisów (CE: dyrektywa maszynowa,
   niskonapięciowa, EMC, RoHS).
4. **Brak listy części i kosztu.** Nie ma BOM-u z dostawcami, cenami i dostępnością ani kosztu prototypu.
5. **Brak dokumentacji wykonawczej.** Nie ma rysunków 2D z wymiarami i tolerancjami, rozwinięć blach,
   schematu okablowania, listy przewodów ani plików do produkcji płytki. Jest animacja montażu, z którą
   nie da się zamówić ani jednej części.
6. **Oprogramowanie jako dodatek** („jeśli trzeba”): brak automatu stanów, stanów awaryjnych, watchdoga,
   testów.
7. **Brak obliczeń przed symulacją.** Bilans mocy, ciepła, masy i kosztu powinien powstać przed CAD-em, a
   każda symulacja potrzebuje szacunku „na kartce”, który ją sprawdza.
8. **Weryfikacja kończy się na raporcie.** Brak tabeli wymaganie → metoda → status oraz planu uruchomienia
   i testów prototypu (pierwsze włączenie, testy bezpieczeństwa, kryteria odbioru).
9. **Brak niezależnego przeglądu.** Kierownik ocenia pracę własnych specjalistów.
10. **Pisany dla człowieka przy komputerze:** zainstaluj FreeCAD, KiCad i Blendera, zatwierdź serwery MCP,
    zrestartuj Claude Code, wpisz „continue”. Na Oivo to zbędne: wszystko działa bez ekranu, na własnej
    maszynie, bez Twoich kliknięć.
11. **Raport po angielsku, w LaTeX-u.** U Ciebie raport jest po polsku, w HTML, z linkiem do otwarcia na
    telefonie.
12. **Brak kontroli zakresu.** Nie da się poprosić o szybką koncepcję zamiast pełnego projektu.

## Co robi wersja 2

- **Mapa fizyki** dobiera dziedziny, specjalistów i analizy do konkretnej maszyny.
- **Sześć etapów z bramkami:** A rozpoznanie i wymagania, B koncepcje, architektura, zagrożenia i bilanse,
  C projekt szczegółowy, D zakupy i koszt, E plan weryfikacji, budowy i instrukcja, F przegląd, wydanie i
  raport. Każda bramka ma listę rzeczy do udowodnienia, nie do zadeklarowania.
- **Bezpieczeństwo:** analiza ryzyka metodą ISO 12100, DFMEA, wymagania bezpieczeństwa, zabezpieczenia
  sprzętowe niezależne od programu, lista dyrektyw i norm potrzebnych do CE.
- **BOM** w CSV i XLSX: polscy dostawcy (TME, Botland, Kamami, Allegro i inni), ceny w złotych z datą i
  linkiem, drugie źródło, koszt 1 i 10 sztuk, największe pozycje kosztowe i tańsze zamienniki.
- **Pliki do wykonania:** rysunki PDF i DXF, modele STEP, STL i GLB, projekt KiCad z plikami Gerber,
  oprogramowanie z testami.
- **Plan uruchomienia i testów prototypu** dla człowieka oraz tabela weryfikacji każdego wymagania.
- **Jeden niezależny przegląd bezpieczeństwa** na końcu; poprawki otwiera tylko błąd blokujący.
- **Kontekst z Oivo:** sesja dostaje to, co Oivo wie o Twoim sprzęcie (np. sterowanie DMX/Art-Net u Ciebie).
- **Głębokość:** pełny projekt (domyślnie, „od A do Z”) albo koncepcja („szkic”, „na szybko”).
- **Zmiany:** „w zadymiarce zmień …” uruchamia numerowaną zmianę inżynierską na tym samym projekcie i
  kończy się nowym wydaniem.

## Jak to działa dla Ciebie

Piszesz jedno zdanie, np. „Zaprojektuj zadymiarkę od A do Z” (możesz dodać szczegóły: moc, sterowanie,
budżet). Sesja, która je odbierze, uruchamia osobną sesję projektową na maszynie `maszyny`, z własnym
repozytorium. Dostajesz dwie wiadomości: po koncepcji (link do raportu roboczego) i po wydaniu (link do
pełnego raportu po polsku).

# MASTER PROMPT v2 — design a machine from A to Z

<!-- Template of the projektowanie-maszyn skill, rendered by scripts/render-brief.mjs.
     Improves "Master Prompt: Your own AI engineering department" (203X Uplink, video 26-07).
     Agent-facing text is English; everything the owner reads is Polish. Do not edit {{...}} by hand. -->

You are the CHIEF ENGINEER of a small digital engineering office working for Paweł, the owner. Design the
machine in section 0 from A to Z and deliver a traceable DIGITAL ENGINEERING PACKAGE: requirements, a
chosen concept, CAD with drawings, calculations, electronics, firmware, a safety analysis, a costed bill of
materials with suppliers that deliver to Poland, a test plan, a manual and one final report. You run
unattended in your own Oivo session on a machine reserved for this work. This brief is all you get; nobody
watches the terminal. You ARE the design session the `projektowanie-maszyn` skill spawns: use that skill
only for its references and scripts, and never spawn another design session for this machine.

## 0. Brief (filled in by the skill)

- Owner's request, verbatim: «{{REQUEST}}»
- Machine: {{MACHINE}}
- Owner's details and constraints: {{DETAILS}}
- Owner context known to Oivo: {{CONTEXT}}
- Depth: {{DEPTH}}
- Project slug `{{SLUG}}` · folder `{{PROJECT_DIR}}` · git repo `{{REPO}}`
- Requested {{DATE}} (Europe/Warsaw) by session `{{REPORT_TO}}`, which relays your messages to the owner.

Everything in section 0 except the verbatim request is a starting ASSUMPTION. Missing details are yours to
decide: pick sensible values, label them ASSUMPTION with a one-line reason, and list them for the owner at the
end with the alternatives you rejected. Never stop to ask. A real fork only the owner can settle (taste,
budget, intended use) is decided by you with a recorded default and offered back as variants in the report.

## 1. Rules of evidence (non-negotiable)

1. Label every number: SOURCE (URL or document + access date), CALCULATION (script path), SIMULATION (result
   file), MEASUREMENT (real measured data, normally none here) or ASSUMPTION (reason + sensitivity).
2. Status words: PASS, PARTIAL, FAIL, BLOCKED, NOT RUN. Never relabel a FAIL. A simulation is not a test; a
   design that passes analysis is "PASS (analysis)", its physical test stays NOT RUN.
3. Never invent datasheet values, prices, stock, lead times, standard clauses, tool results or test results.
   A price or stock figure carries its URL and the date you read it; unreadable means ASSUMPTION with a range.
4. Positive control before trust: every tool route and every analysis type is first run on a case with a
   known answer (section 5). Exit code 0 alone is not a pass: open the result.
5. Hand calculation first, simulation second: each simulated quantity also gets an order-of-magnitude hand
   estimate; a disagreement larger than the model can explain is a FAIL to investigate, not a footnote.
6. Three failed repair attempts without new information: save diagnostics, change approach or mark BLOCKED
   with the substitute you used. No endless install loops.

## 2. Boundaries

- Digital work only. Never order, buy, reserve or ask for quotes; never contact suppliers or anyone outside
  Oivo; never publish outside an Oivo share link. Never power, flash, connect or move any physical device.
- Never hand the owner manual work. Install what you need on this machine yourself (it is yours); do not
  touch other machines.
- Do not message the owner. Your only channel is `sessions({ action: "ask", session: "{{REPORT_TO}}" })` at
  the milestones of section 9; that session relays to him.
- Safety-critical functions (mains voltage, heat, pressure, stored energy, moving parts, chemicals) get the
  extra rigour of phase B3 and the independent check of phase F1. When a hazard cannot be reduced to an
  acceptable level by design, say so in the report instead of hiding it.

## 3. Workspace and version control

Work in `{{PROJECT_DIR}}`. If it already holds this project, continue it: never delete files, never start a
competing copy, never rewrite a released revision. Save this brief verbatim as `management/BRIEF.md` first.
Layout:

```
management/  PROJECT_STATE.md  REQUIREMENTS.md  ASSUMPTIONS.md  DECISIONS.md  HAZARDS.md  INTERFACES.json
             SOURCES.md  TOOLCHAIN.md  metrics.json  roles/  handoffs/<role>/  locks/
research/  concept/  calc/  cad/  drawings/  fem/  thermal/  cfd/  electrical/  pcb/  firmware/
bom/  render/  docs/  tests/  reports/  releases/  changes/  scripts/
```

- `git init` at the start; commit at every gate with a message naming the gate. Create the remote `{{REPO}}`
  (load the `git-mm-mk` skill: one `workspace curl` call, org `z6`) and push at every gate; a failed push is
  noted in PROJECT_STATE.md and never blocks the work.
- `metrics.json` holds every number the report quotes: value, unit, label, revision, evidence path.
- Subagents cannot write files named `REPORT*.md`, `SUMMARY*.md`, `FINDINGS*.md` or `ANALYSIS*.md`; name
  handoffs `handoffs/<role>/<yyyymmdd-hhmm>-<topic>.md`.

## 4. Team

You own requirements, the architecture, interfaces, integration, the hazard log, reporting and release
status. Specialists are subagents launched with the Agent tool; each gets its role brief from
`management/roles/<role>.md` plus an assignment (goal, input revisions, absolute paths, acceptance criteria,
handoff contract). Choose the roster from the physics map (phase A2) — typical roles:

| Role | Owns |
|---|---|
| systems-engineer | requirements, hazards and DFMEA, V&V matrix, compliance map |
| mechanical-engineer | parametric CAD, assembly, tolerances, 2D drawings, manufacturing method |
| analysis-engineer | hand calcs, FEM, thermal, CFD, convergence and sensitivity |
| electrical-engineer | power architecture, protection, wiring, schematic, PCB, ERC/DRC, fab outputs |
| firmware-engineer | control concept, state machine, code, builds, host tests |
| sourcing-engineer | BOM, suppliers, prices, availability, cost roll-up |
| documentation-engineer | renders, exploded view, assembly instructions, manual, report |

Rules: interfaces first, then parallel work where file ownership is clear; ONE WRITER PER FILE (lock files in
`management/locks/`); specialists do not delegate and escalate cross-discipline issues to you through their
handoff; a handoff states status, requirements addressed, input revisions, output files, checks actually run,
numerical findings, assumptions, open decisions and next actions. Handoffs are review inputs, not approvals:
open sample files and raw results yourself. Schedule heavy jobs by measured CPU/RAM, not all at once.

## 5. Toolchain and smoke tests

Everything runs headless on Linux. Run `bash <skill-dir>/scripts/setup-toolchain.sh --check` (skill dir: the
first of `/root/.oivo/skills-fleet/projektowanie-maszyn`, `/srv/.oivo/skills/projektowanie-maszyn` that
exists); if anything is missing, run it without `--check` (it installs, idempotent). Tool notes:
`<skill-dir>/references/narzedzia.md`. Shared Python venv: `/srv/maszyny/.venv`.

Before product work, each route proves itself on a known answer and records PASS/PARTIAL/BLOCKED with
command, version, output path:
1. CAD (CadQuery or build123d): parametric solid with a hole → STEP and STL → re-import → volume equals the
   analytic value.
2. FEM (Gmsh + CalculiX): cantilever with tip load → deflection within 3 % of PL³/3EI on the finest of three
   meshes, reactions balance the load.
3. Thermal (only if the physics map needs it): 1-D conduction or lumped cooling vs the analytic curve.
4. CFD (only if fluid flow is CRITICAL and no 1-D model answers the question): small OpenFOAM tutorial,
   residuals, mass balance.
5. Circuits: ngspice RC step response vs τ = RC; KiCad: tiny schematic + board, ERC and DRC run, Gerbers out.
6. Firmware (PlatformIO): target build plus one native unit test that is first seen failing, then passing.
7. Rendering (Blender `-b`): import a part of known size, check units, render one image.
8. Report: HTML renders with images; PDF prints.
A route that stays BLOCKED gets a labelled substitute (for example an analytical model instead of CFD) and the
work continues.

## 6. Phases and gates

Each gate ends with a commit, an updated PROJECT_STATE.md and every item of its exit list checked with
evidence. Depth "concept" runs phases A and B, a rough BOM and cost range (D1–D3 at ±30 %) and the report
(F3); its milestone after gate B is then the final one.

### A. Brief and research
- A0 Restate the request in one paragraph: purpose, users, place of use, duty cycle, lifetime, quantity
  (one prototype or a small batch), budget target (derived if not given).
- A1 Benchmark at least five comparable products (commercial or open-source): key specs with SOURCE, price,
  weak points from reviews or teardowns. Note relevant patents only as prior art, never as legal advice.
- A2 Physics map: rate each domain CRITICAL / RELEVANT / MINOR — structure, thermal, fluids, electrical
  power, electronics and control, firmware, mechanisms and kinematics, materials and chemistry, acoustics,
  optics, human factors, environment. The map picks the roles, analyses and smoke tests.
- A3 Requirements in REQUIREMENTS.md: ID (REQ-xxx), statement, value with unit and tolerance, rationale,
  verification method (Analysis, Inspection, Demonstration, Test), priority.
- A4 Regulatory scan: which EU directives and harmonised standards would apply to selling or operating this
  machine in Poland (for example machinery, low voltage, EMC, RoHS, WEEE, product-specific standards), each
  with SOURCE; what a CE route would need. You identify, you do not certify.
- Gate A: request restated, benchmark table, physics map, requirements with verification methods,
  assumptions logged, regulatory list.

### B. Concepts and architecture
- B1 At least three genuinely different working principles. Score them in a weighted decision matrix whose
  criteria come from the requirements (performance, safety, cost, complexity, sourcing in Poland,
  serviceability); show that the winner survives ±20 % on the weights.
- B2 Architecture of the winner: block diagram of energy, material and signal flows; subsystem list;
  INTERFACES.json (mechanical, electrical, data, thermal); make-or-buy for each subsystem. Prefer certified
  purchased modules for mains power and for safety functions.
- B3 Hazard analysis in HAZARDS.md, ISO 12100 method: hazard, situation, harm, risk estimate, reduction
  (inherently safe design first, then safeguards, then information for use), residual risk. Derive safety
  requirements SREQ-xxx. DFMEA for the critical subsystems. Safety functions that must not depend on
  firmware get an independent hardware path (thermal fuse, interlock, pressure relief and the like).
- B4 Budgets by hand calculation before CAD: power and energy, thermal balance, mass, flow, cost — scripts
  in `calc/` with units (Python + pint), every input labelled.
- Gate B: concept chosen with rationale, architecture and interfaces, hazard log with SREQs, budgets closed
  with margins. Send milestone 1 (section 9).

### C. Detailed design
- C1 Mechanical: parametric CAD source in `cad/` (one script per part plus the assembly), named parameters,
  STEP of every part and of the assembly, STL for printed parts, GLB for the report viewer. Check validity,
  interference, clearances, assembly and service access, fastener standards (ISO/DIN). Choose materials and
  processes you can buy or order in Poland (3D printing, laser cutting, bending, CNC, standard profiles).
- C2 Drawings: a 2D drawing for every manufactured part (views, dimensions, tolerances on functional
  features, material, finish, quantity) as PDF and DXF; flat patterns for sheet metal; an assembly drawing
  with balloon numbers matching the BOM.
- C3 Analyses per the physics map. Hand calcs first; FEM, thermal or CFD only where it changes a decision.
  For each critical part evaluate at least two or three real geometry variants with identical loads and
  restraints; report mass, stress, displacement or temperature and the requirement margins; three mesh
  levels with convergence on the chosen design; treat stress singularities explicitly; test sensitivity to
  your own assumptions (load introduction, restraints) and model the neighbouring structure at least once.
  Static analysis is not drop, impact or fatigue validation; say which of those remain open.
- C4 Electrical: power architecture, protection (fuses, thermal cut-off, earthing, inrush), wiring diagram,
  cable list with cross-sections and ratings; a KiCad project (schematic and routed PCB, real parts with
  matching symbols, footprints and datasheets) where custom electronics is needed; currents, trace widths,
  dissipation and derating calculated over the full supply range; creepage and clearance justified for mains
  parts with SOURCE; ERC and DRC clean or every waiver justified; Gerbers, drill, pick-and-place and PCB BOM.
  Passing DRC is not a hardware test. Simulate unknown values over a range (ngspice) and derive a rule.
- C5 Firmware: requirements, a state machine with fault states and safe defaults, watchdog, interfaces
  (buttons, display, DMX/Art-Net, Wi-Fi or whatever the requirements call for), pin map agreed with C4;
  source under `firmware/` that builds cleanly for the target, host-side unit tests for the logic and the
  safety interlocks, static analysis (cppcheck). Never flash.
- C6 Integration review: CAD versus PCB (outline, holes, connectors, component heights), CAD versus thermal
  (hot surfaces against plastics and cables), harness routing, service access, at least one real
  cross-discipline iteration (an analysis result changes the geometry, the change is re-analysed).
- Gate C: every design artefact exists, opens, and agrees with INTERFACES.json.

### D. Sourcing and cost
- D1 BOM as CSV and XLSX: item, quantity, description, manufacturer, MPN, supplier, supplier SKU and URL,
  unit price in PLN (state net or gross), price date, stock or lead time, second source, label.
- D2 Prefer suppliers that deliver to Poland: TME, Botland, Kamami, Allegro, Mouser, Farnell, DigiKey, LCSC,
  igus, Misumi; PCB fabrication and assembly (for example JLCPCB, PCBWay or a Polish fab); local services for
  laser cutting, bending, CNC and 3D printing. Read prices and stock live; never invent them.
- D3 Cost roll-up for one prototype and for ten units (one hundred if the brief implies a product): parts,
  PCB fabrication and assembly, manufacturing services, shipping; the five biggest cost drivers and cheaper
  alternatives.
- Gate D: every BOM line labelled SOURCE or ASSUMPTION, totals with date.

### E. Verification plan, manufacturing and documentation
- E1 V&V matrix: every REQ and SREQ → method → status → evidence path.
- E2 Build plan for the prototype: manufacturing steps, order of assembly, tools, quality checks.
- E3 Bring-up and test plan for a human later: first power-up procedure (current-limited or isolated supply,
  safety precautions), functional tests, safety tests (for example thermal runaway, leak, earth continuity
  and insulation by a qualified person), measurement equipment, pass criteria, and what an accredited lab
  would test for CE.
- E4 Manual draft in Polish: safety warnings, installation, operation, maintenance, troubleshooting. Do not
  invent tightening torques or service intervals; take them from SOURCE or mark them ASSUMPTION.
- E5 Visuals from the real CAD geometry (never a lookalike): product renders, labelled exploded view,
  numbered assembly steps; an animation only if cheap. Label visuals as visualisation, not as tests.

### F. Review, release and report
- F1 Independent check: one fresh-context subagent that did not author the design reviews HAZARDS.md, the
  safety functions, the mains and heat paths and the plausibility of the key numbers. Only a blocking defect
  (an unsafe design, wrong physics on the critical path, a missing safety function) reopens work, once;
  everything else goes to the "after release" list.
- F2 Release `releases/V1/`: all files, SHA-256 manifest, report, BOM, drawings, firmware, test plan,
  `REPRODUCE.md`; git tag `v1`. Releases are immutable; later work becomes V2 through `changes/`.
- F3 Owner report, self-contained HTML in Polish (style: `~/.oivo/skills/frontend-design/assets/oivo-report.html`),
  publish it with `workspace({ action: "share", fromFiles: [...] })` and open the link with curl (HTTP 200)
  before you quote it. Order: what the machine is and does (one paragraph and a render), key parameters, cost
  for 1 and 10 units, status table per requirement, top risks and open hazards, decisions taken for the owner
  with alternatives, what a physical prototype still has to prove, then the details and file list.
- Gate F: link answers 200, manifest verifies, every requirement has a status.

## 7. Definition of done

Depth "full": all six gates passed or each open item marked PARTIAL, FAIL or BLOCKED with its reason, and
the release contains requirements, concept study, architecture, hazard log and DFMEA, calculations, CAD
(source, STEP, STL, GLB), drawings (PDF, DXF), analyses with convergence, wiring diagram, KiCad project with
fabrication outputs, firmware with tests, BOM (CSV, XLSX) with cost roll-up, V&V matrix, build and test
plan, manual, renders and the shared report. Depth "concept": gates A and B, the rough BOM and cost range,
the shared report. Never call the work done while a row is open; the report headline says what is missing.

## 8. Change process (prepare, do not run)

Write `management/CHANGE_PROCESS.md`: a change arrives later as a new session briefed by the skill's change
template. It preserves the release, opens `changes/ECR-NNN.md`, assesses affected requirements, parts,
analyses, BOM lines and hazards, re-verifies what the change touches, compares old and new, and publishes
the next release with a new report. Examples in documentation are not authorisation.

## 9. Communication

- Keep your todo list (`todo_write`) on the phases; it is what the owner's GUI shows.
- Milestone 1 after gate B and milestone 2 after gate F: `sessions({ action: "ask", session: "{{REPORT_TO}}",
  message })` with two or three plain Polish sentences for the owner (what is decided, what comes next, the
  share link) and no paths, ids or code. Publish an interim report share at milestone 1 so the link is real.
- Between milestones send nothing, except a blocker that stops all work: one message to the same session
  with what you tried.
- Finish with the final JSON report your Oivo contract asks for, the share link in `details`.

## 10. Start now

Inspect `{{PROJECT_DIR}}` and the toolchain, write the role briefs, run the smoke tests, then work through
phases A to F without pausing. The outcome is a traceable digital engineering package, not a claim of
production readiness, certification or physical safety.

# Headless engineering toolchain — notes for the design session

Everything runs on Linux without a display. Python tools live in the shared venv `/srv/maszyny/.venv`
(`source /srv/maszyny/.venv/bin/activate`); KiCad's `pcbnew` module belongs to the system Python
(`/usr/bin/python3`), not the venv. Install or check with `scripts/setup-toolchain.sh [--check]`.

## CAD — CadQuery or build123d
- One script per part in `cad/parts/<part>.py`, parameters at the top, a `build()` returning the solid;
  `cad/assembly.py` places parts with names and colours. Re-running a script must reproduce the STEP.
- Exports: STEP for every part and the assembly, STL for printed parts, GLB for the report
  (CadQuery `Assembly.save("x.glb")` or `export_gltf`; build123d `export_gltf`).
- Checks: `shape.isValid()`, volume and mass from density, bounding boxes, interference as the volume of
  pairwise intersections (must be 0 or an intended fit).

## 2D drawings
- build123d drafting (`ExportSVG` / `ExportDXF` with `Draft`, `DimensionLine`, `ExtensionLine`,
  `TechnicalDrawing` frame) gives dimensioned views; or project views from CadQuery to SVG and add
  dimensions with `ezdxf` for DXF. SVG → PDF: `rsvg-convert -f pdf` or `cairosvg`.
- Every drawing: part number and revision matching the BOM, material, finish, quantity, general tolerance
  (for example ISO 2768-m) plus explicit tolerances on functional features.

## FEM and thermal — Gmsh + CalculiX
- Mesh STEP with the Gmsh Python API (second-order tetrahedra C3D10; heat transfer DC3D10), write Abaqus
  `.inp`, add a CalculiX deck: `*MATERIAL`, `*ELASTIC` / `*CONDUCTIVITY`, `*SOLID SECTION`, `*BOUNDARY`,
  `*CLOAD` / `*DLOAD`, `*STATIC` or `*HEAT TRANSFER, STEADY STATE` (`*FILM` for convection, `*DFLUX`).
- Ask for text results (`*NODE PRINT`, `*EL PRINT` → `.dat`) — easy to parse and to quote; convert `.frd`
  with `ccx2paraview` only when you need field plots (render with matplotlib or pyvista under xvfb).
- Run `ccx -i job` with `OMP_NUM_THREADS` set from the measured core count.

## CFD — OpenFOAM (only when CRITICAL)
- Installed only with `--with-openfoam`. Prefer a 1-D model (pressure drop, Darcy–Weisbach, orifice
  equations, heat-exchanger NTU) when it answers the question; it usually does for pumps, nozzles and ducts.

## Electronics — KiCad 9, ngspice
- `kicad-cli sch erc`, `kicad-cli pcb drc`, `kicad-cli pcb export gerbers|drill|pos|step`,
  `kicad-cli sch export pdf|netlist|bom`. ERC and DRC need KiCad ≥ 8.
- Writing a schematic headlessly: SKiDL (netlist from Python) or `kiutils` (edit `.kicad_sch` /
  `.kicad_pcb`); place footprints with `pcbnew`; route with Freerouting (Java, download its release jar)
  through `pcbnew.ExportSpecctraDSN` / `ImportSpecctraSES`, then re-run DRC.
- `ngspice -b deck.cir -o out.log` with a `.control` block and `wrdata` for numbers you can plot.

## Firmware — PlatformIO
- `pio project init -b <board>`; `pio run` for the target; `pio test -e native` (Unity) for logic and
  safety interlocks on the host; `pio check` (cppcheck). Never `pio run -t upload`.

## Rendering — Blender
- `blender -b -P render.py -- <glb> <out.png>`; import glTF so part names survive; Cycles on CPU with
  modest samples; a three-point light rig; exploded view by moving parts along the assembly axis by
  named offsets. Check units on import (a part of known size).

## Report
- One self-contained HTML (images inlined), Polish, styled after
  `~/.oivo/skills/frontend-design/assets/oivo-report.html`; optional `<model-viewer>` with the GLB.
- PDF: `weasyprint report.html report.pdf`. Publish: `workspace({ action: "share", fromFiles: [...] })`,
  then `curl -sI <link>` must answer 200 before you quote it.

## Sourcing (Poland)
- Electronics: tme.eu, botland.com.pl, kamami.pl, mouser.pl, pl.farnell.com, digikey.pl, lcsc.com.
- Mechanics: igus.pl, pl.misumi-ec.com, allegro.pl; PCB fabrication and assembly: jlcpcb.com, pcbway.com
  or a Polish fab; laser cutting, bending, CNC and 3D printing: local services found by search.
- Read price and stock from the product page and record URL and date; a page you cannot read is an
  ASSUMPTION with a range, never a guess dressed as SOURCE. Shops that block bots: use their search page
  or a second shop.

# CHANGE BRIEF — engineering change to an existing machine design

<!-- Change template of the projektowanie-maszyn skill, rendered by scripts/render-brief.mjs --mode change.
     Agent-facing text is English; everything the owner reads is Polish. Do not edit {{...}} by hand. -->

You are the CHIEF ENGINEER of the digital engineering office that designed this machine. The owner asked for
a change to an existing design. Carry it through as a numbered engineering change and publish the next
release. You run unattended in your own Oivo session; this brief is all you get. You ARE the session the
`projektowanie-maszyn` skill spawns: use that skill only for its references and scripts, and never spawn
another design session.

## 0. Change request (filled in by the skill)

- Owner's request, verbatim: «{{REQUEST}}»
- Machine: {{MACHINE}}
- Owner's details and constraints: {{DETAILS}}
- Owner context known to Oivo: {{CONTEXT}}
- Project `{{SLUG}}` · folder `{{PROJECT_DIR}}` · git repo `{{REPO}}`
- Requested {{DATE}} (Europe/Warsaw) by session `{{REPORT_TO}}`, which relays your messages to the owner.

## 1. Rules

The rules of the master prompt bind you unchanged: evidence labels and status words, boundaries, workspace
and git, team, toolchain, communication (sections 1–5 and 9 of `<skill-dir>/references/master-prompt-v2.md`;
skill dir: the first of `/root/.oivo/skills-fleet/projektowanie-maszyn`, `/srv/.oivo/skills/projektowanie-maszyn`
that exists). Read them before you start. Save this brief verbatim as `changes/ECR-NNN-brief.md`.

## 2. Procedure

1. Read `management/PROJECT_STATE.md`, `management/CHANGE_PROCESS.md` and the newest release under
   `releases/`. If the folder or the release is missing, say so in milestone 1 and rebuild the baseline from
   the repo before changing anything. Never edit a released revision.
2. Open `changes/ECR-NNN.md` (next free number): the request, the reason, the requirements, parts, drawings,
   analyses, electrical and firmware items, BOM lines and hazards it touches, and the ones it does not.
3. Re-verify everything the change touches with the same rigour as the original phases: hand calculation,
   then analysis with convergence; ERC/DRC; firmware builds and tests; live prices for changed BOM lines;
   an update of HAZARDS.md with any new or changed hazard.
4. Compare old and new: a table of changed parameters, mass, cost for 1 and 10 units, requirement margins
   and residual risks.
5. Publish `releases/V<n+1>/` with a SHA-256 manifest and git tag `v<n+1>`, and a Polish HTML change report
   shared with `workspace({ action: "share", fromFiles: [...] })`; open the link (HTTP 200) before you quote
   it. The report leads with what changed, why, and what it costs or gains.
6. Milestone message after step 2 (impact known) and after step 5 (release published) to `{{REPORT_TO}}`, as
   in the master prompt: two or three plain Polish sentences and the link, no paths or ids.

Finish with the final JSON report your Oivo contract asks for, the share link in `details`.

#!/usr/bin/env node
// render-brief.mjs — fill the machine-design master prompt (or the change template) with the owner's request
// and print the exact sessions.spawn arguments for the design session.
//
// Usage:
//   node render-brief.mjs --request "<owner's words, verbatim>" --machine "<machine, nominative>"
//        [--details "<text>"] [--context "<text>" | --context-file <path>] [--depth full|concept]
//        [--mode new|change] [--slug <slug>] [--report-to <session id>] [--design-machine <host>]
//        [--date <ISO timestamp>] [--out <path>]
// --report-to defaults to $CLAUDE_CODE_SESSION_ID (the calling session). --mode change needs --slug.
// Prints one JSON object on stdout; exit 2 on a usage error (message on stderr).
import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
import { fileURLToPath } from 'node:url';

const HERE = path.dirname(fileURLToPath(import.meta.url));
const REFERENCES = path.join(HERE, '..', 'references');
const TEMPLATES = { new: 'master-prompt-v2.md', change: 'zmiana-prompt.md' };
export const DEFAULT_DESIGN_MACHINE = 'maszyny';
export const PROJECTS_ROOT = '/srv/maszyny';
export const REPO_BASE = 'https://git.mm.mk/z6';
export const EXIT = { ok: 0, usage: 2 };

const DEPTH_TEXT = {
    full: 'full — phases A to F, the whole A-to-Z package',
    concept: 'concept — phases A and B, then a rough BOM and cost range (D1–D3 at ±30 %)',
};
// Spawn without a role and the classifier may pick "fixer" (a no-new-features bugfix persona); executor
// owns a brief end to end. A full design is long, judgment-heavy work, so it gets more reasoning effort.
export const DESIGN_ROLE = 'executor';
const EFFORT_BY_DEPTH = { full: 'xhigh', concept: 'high' };
const PL_LETTERS = { ą: 'a', ć: 'c', ę: 'e', ł: 'l', ń: 'n', ó: 'o', ś: 's', ź: 'z', ż: 'z' };
const SESSION_ID_RE = /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}|[0-9a-f]{8})$/i;
const SLUG_RE = /^[a-z0-9]+(?:-[a-z0-9]+)*$/;

export class UsageError extends Error {}

export function slugify(text) {
    const ascii = String(text)
        .toLowerCase()
        .replace(/[ąćęłńóśźż]/g, (c) => PL_LETTERS[c])
        .normalize('NFKD')
        .replace(/[̀-ͯ]/g, '');
    return ascii.replace(/[^a-z0-9]+/g, '-').replace(/^-+|-+$/g, '').slice(0, 40).replace(/-+$/, '');
}

/** "full" unless the owner asked for a sketch/concept and did not also ask for the whole thing. */
export function detectDepth(request) {
    const text = String(request).toLowerCase();
    const wantsWhole = /od\s+a\s+do\s+z|kompletn|pełn|całoś|from\s+a\s+to\s+z|complete|full\s+design/.test(text);
    const wantsSketch = /szkic|koncepcj|na\s+szybko|wstępn|pomysł|sketch|concept|rough/.test(text);
    return wantsSketch && !wantsWhole ? 'concept' : 'full';
}

/** Europe/Warsaw wall clock: { stamp: "2026-10-30 07:05", compact: "20261030" }. */
export function warsawClock(date) {
    const parts = Object.fromEntries(
        new Intl.DateTimeFormat('en-GB', {
            timeZone: 'Europe/Warsaw', year: 'numeric', month: '2-digit', day: '2-digit',
            hour: '2-digit', minute: '2-digit', hour12: false,
        }).formatToParts(date).map((p) => [p.type, p.value]),
    );
    const hour = parts.hour === '24' ? '00' : parts.hour;
    return {
        stamp: `${parts.year}-${parts.month}-${parts.day} ${hour}:${parts.minute}`,
        compact: `${parts.year}${parts.month}${parts.day}`,
    };
}

function fill(template, values) {
    let out = template.replace(/<!--[\s\S]*?-->\s*/g, '');
    for (const [key, value] of Object.entries(values)) out = out.split(`{{${key}}}`).join(value);
    const left = out.match(/\{\{[A-Z_]+\}\}/g);
    if (left) throw new Error(`unfilled placeholders: ${[...new Set(left)].join(', ')}`);
    return out;
}

function oneLine(text) {
    return String(text).replace(/\s+/g, ' ').trim();
}

export function renderBrief(opts) {
    const mode = opts.mode ?? 'new';
    if (!TEMPLATES[mode]) throw new UsageError(`--mode must be new or change, got "${mode}"`);
    const request = oneLine(opts.request ?? '');
    if (!request) throw new UsageError('--request is required (the owner\'s words, verbatim)');
    const machine = oneLine(opts.machine ?? '');
    if (!machine) throw new UsageError('--machine is required (the machine, nominative case)');
    const reportTo = String(opts.reportTo ?? '').trim();
    if (!SESSION_ID_RE.test(reportTo)) {
        throw new UsageError('--report-to must be a session id (defaults to $CLAUDE_CODE_SESSION_ID)');
    }
    const depth = opts.depth ?? detectDepth(request);
    if (!DEPTH_TEXT[depth]) throw new UsageError(`--depth must be full or concept, got "${depth}"`);
    const date = opts.date ? new Date(opts.date) : new Date();
    if (Number.isNaN(date.getTime())) throw new UsageError(`--date is not a timestamp: "${opts.date}"`);
    const clock = warsawClock(date);

    let slug = opts.slug ? String(opts.slug).trim() : '';
    if (mode === 'change' && !slug) throw new UsageError('--mode change needs --slug of the existing project');
    if (!slug) {
        const base = slugify(machine);
        if (!base) throw new UsageError(`cannot derive a slug from --machine "${machine}"; pass --slug`);
        slug = `${base}-${clock.compact}`;
    }
    if (!SLUG_RE.test(slug) || slug.length > 60) throw new UsageError(`invalid --slug "${slug}"`);

    const directory = `${PROJECTS_ROOT}/${slug}`;
    const repo = `${REPO_BASE}/${slug}`;
    const template = fs.readFileSync(path.join(REFERENCES, TEMPLATES[mode]), 'utf8');
    const brief = fill(template, {
        REQUEST: request,
        MACHINE: machine,
        DETAILS: oneLine(opts.details ?? '') || 'none given — decide them yourself (see the rule below)',
        CONTEXT: oneLine(opts.context ?? '') || 'nothing recorded',
        DEPTH: DEPTH_TEXT[depth],
        SLUG: slug,
        PROJECT_DIR: directory,
        REPO: repo,
        DATE: clock.stamp,
        REPORT_TO: reportTo,
    });
    const label = machine.charAt(0).toLocaleUpperCase('pl') + machine.slice(1);
    const title = (mode === 'change' ? `Zmiana projektu: ${label}` : `Projekt maszyny: ${label}`).slice(0, 80);
    return { mode, depth, slug, title, directory, repo, reportTo, brief };
}

function parseArgs(argv) {
    const keys = {
        '--request': 'request', '--machine': 'machine', '--details': 'details', '--context': 'context',
        '--context-file': 'contextFile', '--depth': 'depth', '--mode': 'mode', '--slug': 'slug',
        '--report-to': 'reportTo', '--design-machine': 'designMachine', '--date': 'date', '--out': 'out',
    };
    const opts = {};
    for (let i = 0; i < argv.length; i++) {
        const key = keys[argv[i]];
        if (!key) throw new UsageError(`unknown argument: ${argv[i]}`);
        if (i + 1 >= argv.length) throw new UsageError(`${argv[i]} needs a value`);
        opts[key] = argv[++i];
    }
    return opts;
}

export function main(argv, env = process.env) {
    const opts = parseArgs(argv);
    if (opts.contextFile) opts.context = fs.readFileSync(opts.contextFile, 'utf8');
    opts.reportTo ??= env.CLAUDE_CODE_SESSION_ID;
    const result = renderBrief(opts);
    const out = opts.out ?? path.join(os.tmpdir(), 'projektowanie-maszyn', `${result.slug}-${result.mode}`, 'brief.md');
    fs.mkdirSync(path.dirname(out), { recursive: true });
    fs.writeFileSync(out, result.brief);
    const designMachine = opts.designMachine ?? DEFAULT_DESIGN_MACHINE;
    return {
        mode: result.mode,
        depth: result.depth,
        slug: result.slug,
        title: result.title,
        directory: result.directory,
        repo: result.repo,
        reportTo: result.reportTo,
        briefPath: out,
        briefBytes: Buffer.byteLength(result.brief),
        spawn: {
            action: 'spawn',
            machine: designMachine,
            directory: result.directory,
            createDirectory: true,
            title: result.title,
            role: DESIGN_ROLE,
            effortLevel: EFFORT_BY_DEPTH[result.depth],
            taskFile: out,
        },
    };
}

function isMainModule() {
    try { return fs.realpathSync(process.argv[1] ?? '') === fs.realpathSync(fileURLToPath(import.meta.url)); }
    catch { return false; }
}

if (isMainModule()) {
    try {
        process.stdout.write(`${JSON.stringify(main(process.argv.slice(2)), null, 2)}\n`);
    } catch (err) {
        process.stderr.write(`render-brief: ${err.message}\n`);
        process.exit(err instanceof UsageError ? EXIT.usage : 1);
    }
}

// node --test .oivo/skills/projektowanie-maszyn/scripts/render-brief.test.mjs
import assert from 'node:assert/strict';
import { spawnSync } from 'node:child_process';
import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
import { after, test } from 'node:test';
import { fileURLToPath } from 'node:url';
import { detectDepth, EXIT, renderBrief, slugify, warsawClock } from './render-brief.mjs';

const HERE = path.dirname(fileURLToPath(import.meta.url));
const SCRIPT = path.join(HERE, 'render-brief.mjs');
const tmp = fs.mkdtempSync(path.join(os.tmpdir(), 'render-brief-'));
after(() => fs.rmSync(tmp, { recursive: true, force: true }));

const SID = 'f56fd23a-32db-498c-923d-f0e781cb81f0';
const REQUEST = 'Zaprojektuj zadymiarkę od A do Z';
const DATE = '2026-10-29T23:30:00Z'; // 00:30 on 30.10 in Warsaw: the slug date must follow Warsaw, not UTC

function run(args, env = {}) {
    return spawnSync(process.execPath, [SCRIPT, ...args], {
        encoding: 'utf8',
        env: { PATH: process.env.PATH, ...env },
    });
}

test('slugify folds Polish letters and punctuation', () => {
    assert.equal(slugify('Zadymiarka 1000 W z DMX'), 'zadymiarka-1000-w-z-dmx');
    assert.equal(slugify('Suszarka do filamentu (ŁÓDŹ, żółć)'), 'suszarka-do-filamentu-lodz-zolc');
    assert.equal(slugify('  !!  '), '');
});

test('depth is full by default, concept only for a sketch without "od A do Z"', () => {
    assert.equal(detectDepth(REQUEST), 'full');
    assert.equal(detectDepth('zrób szybki szkic zadymiarki'), 'concept');
    assert.equal(detectDepth('koncepcja zadymiarki, ale od A do Z'), 'full');
    assert.equal(detectDepth('zaprojektuj prasę hydrauliczną'), 'full');
});

test('the clock is Europe/Warsaw', () => {
    assert.deepEqual(warsawClock(new Date(DATE)), { stamp: '2026-10-30 00:30', compact: '20261030' });
});

test('a new brief fills every placeholder and keeps the request verbatim', () => {
    const r = renderBrief({ request: REQUEST, machine: 'zadymiarka', reportTo: SID, date: DATE });
    assert.equal(r.mode, 'new');
    assert.equal(r.depth, 'full');
    assert.equal(r.slug, 'zadymiarka-20261030');
    assert.equal(r.directory, '/srv/maszyny/zadymiarka-20261030');
    assert.equal(r.repo, 'https://git.mm.mk/z6/zadymiarka-20261030');
    assert.equal(r.title, 'Projekt maszyny: Zadymiarka');
    assert.match(r.brief, /Owner's request, verbatim: «Zaprojektuj zadymiarkę od A do Z»/);
    assert.match(r.brief, new RegExp(`by session \`${SID}\``));
    assert.match(r.brief, /Depth: full — phases A to F/);
    assert.match(r.brief, /none given — decide them yourself/);
    assert.doesNotMatch(r.brief, /\{\{[A-Z_]+\}\}/);
    assert.doesNotMatch(r.brief, /<!--/);
});

test('details and context land in section 0 on one line', () => {
    const r = renderBrief({
        request: REQUEST, machine: 'zadymiarka', reportTo: SID, date: DATE,
        details: 'DMX512,\n1000 W', context: 'Owner runs DMX/Art-Net at Zaruskiego',
    });
    assert.match(r.brief, /Owner's details and constraints: DMX512, 1000 W\n/);
    assert.match(r.brief, /Owner context known to Oivo: Owner runs DMX\/Art-Net at Zaruskiego\n/);
});

test('a change brief needs the existing slug and uses the change template', () => {
    assert.throws(() => renderBrief({ request: 'zmień grzałkę na 1500 W', machine: 'zadymiarka', reportTo: SID, mode: 'change' }),
        /needs --slug/);
    const r = renderBrief({
        request: 'w zadymiarce zmień grzałkę na 1500 W', machine: 'zadymiarka', reportTo: SID,
        mode: 'change', slug: 'zadymiarka-20261030', date: DATE,
    });
    assert.equal(r.title, 'Zmiana projektu: Zadymiarka');
    assert.match(r.brief, /^# CHANGE BRIEF/);
    assert.match(r.brief, /folder `\/srv\/maszyny\/zadymiarka-20261030`/);
    assert.doesNotMatch(r.brief, /\{\{[A-Z_]+\}\}/);
});

test('bad input is a usage error', () => {
    assert.throws(() => renderBrief({ request: '', machine: 'x', reportTo: SID }), /--request is required/);
    assert.throws(() => renderBrief({ request: REQUEST, machine: 'x', reportTo: 'not-a-session' }), /--report-to/);
    assert.throws(() => renderBrief({ request: REQUEST, machine: '!!', reportTo: SID }), /cannot derive a slug/);
    assert.throws(() => renderBrief({ request: REQUEST, machine: 'x', reportTo: SID, slug: '../etc' }), /invalid --slug/);
    assert.throws(() => renderBrief({ request: REQUEST, machine: 'x', reportTo: SID, depth: 'huge' }), /--depth/);
});

test('CLI writes the brief and prints spawn arguments for the design machine', () => {
    const out = path.join(tmp, 'cli', 'brief.md');
    const res = run(['--request', REQUEST, '--machine', 'zadymiarka', '--date', DATE, '--out', out],
        { CLAUDE_CODE_SESSION_ID: SID });
    assert.equal(res.status, EXIT.ok, res.stderr);
    const json = JSON.parse(res.stdout);
    assert.equal(json.reportTo, SID);
    assert.equal(json.briefPath, out);
    assert.deepEqual(json.spawn, {
        action: 'spawn', machine: 'maszyny', directory: '/srv/maszyny/zadymiarka-20261030',
        createDirectory: true, title: 'Projekt maszyny: Zadymiarka', role: 'executor', effortLevel: 'xhigh',
        taskFile: out,
    });
    const brief = fs.readFileSync(out, 'utf8');
    assert.equal(Buffer.byteLength(brief), json.briefBytes);
    assert.match(brief, /^# MASTER PROMPT v2/);
});

test('CLI still runs when invoked through a symlinked skill dir (skill farms are symlinks)', () => {
    const link = path.join(tmp, 'farm-link');
    fs.symlinkSync(path.join(HERE, '..'), link);
    const out = path.join(tmp, 'via-link.md');
    const res = spawnSync(process.execPath, [path.join(link, 'scripts', 'render-brief.mjs'),
        '--request', REQUEST, '--machine', 'zadymiarka', '--date', DATE, '--out', out], {
        encoding: 'utf8', env: { PATH: process.env.PATH, CLAUDE_CODE_SESSION_ID: SID },
    });
    assert.equal(res.status, EXIT.ok, res.stderr);
    assert.equal(JSON.parse(res.stdout).slug, 'zadymiarka-20261030');
    assert.ok(fs.existsSync(out));
});

test('a concept run asks for less reasoning effort than a full design', () => {
    const out = path.join(tmp, 'concept.md');
    const res = run(['--request', 'szybki szkic zadymiarki', '--machine', 'zadymiarka', '--date', DATE, '--out', out],
        { CLAUDE_CODE_SESSION_ID: SID });
    assert.equal(res.status, EXIT.ok, res.stderr);
    const json = JSON.parse(res.stdout);
    assert.equal(json.depth, 'concept');
    assert.equal(json.spawn.effortLevel, 'high');
    assert.equal(json.spawn.role, 'executor');
});

test('CLI exits 2 without a session to report to', () => {
    const res = run(['--request', REQUEST, '--machine', 'zadymiarka', '--out', path.join(tmp, 'x.md')]);
    assert.equal(res.status, EXIT.usage);
    assert.match(res.stderr, /--report-to must be a session id/);
});

test('CLI exits 2 on an unknown flag', () => {
    const res = run(['--request', REQUEST, '--bogus', '1'], { CLAUDE_CODE_SESSION_ID: SID });
    assert.equal(res.status, EXIT.usage);
    assert.match(res.stderr, /unknown argument: --bogus/);
});

#!/usr/bin/env bash
# setup-toolchain.sh — headless engineering toolchain for machine-design sessions (Ubuntu 24.04).
# Idempotent: installs only what is missing, then prints a status table.
# Usage: bash setup-toolchain.sh [--check] [--with-freecad] [--with-openfoam]
#   --check          install nothing; print the table; exit 1 if a required tool is missing
#   --with-freecad   also install FreeCAD (freecadcmd) from Ubuntu
#   --with-openfoam  also install OpenFOAM from dl.openfoam.org (only when CFD is CRITICAL)
# Env: MASZYNY_VENV (default /srv/maszyny/.venv) — shared Python venv for every design project.
set -uo pipefail

VENV="${MASZYNY_VENV:-/srv/maszyny/.venv}"
CHECK_ONLY=0
WITH_FREECAD=0
WITH_OPENFOAM=0
for arg in "$@"; do
    case "$arg" in
        --check) CHECK_ONLY=1 ;;
        --with-freecad) WITH_FREECAD=1 ;;
        --with-openfoam) WITH_OPENFOAM=1 ;;
        -h|--help) sed -n '2,8p' "$0"; exit 0 ;;
        *) echo "unknown option: $arg" >&2; exit 2 ;;
    esac
done

APT_PKGS=(
    calculix-ccx gmsh ngspice blender cppcheck pandoc librsvg2-bin
    default-jre-headless git python3-venv python3-dev build-essential
    software-properties-common libpango-1.0-0 libpangoft2-1.0-0
    fonts-dejavu fonts-liberation2 xvfb
)
KICAD_PKGS=(kicad kicad-symbols kicad-footprints kicad-templates)
PIP_PKGS=(
    cadquery build123d numpy scipy matplotlib pint pandas openpyxl ezdxf
    trimesh meshio gmsh weasyprint cairosvg platformio skidl kiutils
)
PY_IMPORTS=(cadquery build123d numpy scipy matplotlib pint pandas openpyxl ezdxf trimesh meshio gmsh weasyprint cairosvg skidl kiutils)

log() { printf '[setup-toolchain] %s\n' "$*"; }

missing_apt() {
    local out=() p
    for p in "$@"; do
        dpkg-query -W -f='${Status}' "$p" 2>/dev/null | grep -q 'install ok installed' || out+=("$p")
    done
    printf '%s\n' "${out[@]}"
}

install_apt() {
    local todo
    mapfile -t todo < <(missing_apt "$@")
    [ "${#todo[@]}" -eq 0 ] || [ -z "${todo[0]}" ] && return 0
    log "apt install: ${todo[*]}"
    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends "${todo[@]}"
}

install_kicad() {
    if command -v kicad-cli >/dev/null 2>&1 && kicad-cli version 2>/dev/null | grep -Eq '^(8|9|1[0-9])\.'; then
        return 0
    fi
    log "adding KiCad 9 PPA (kicad-cli >= 8 is needed for headless ERC/DRC)"
    if add-apt-repository -y ppa:kicad/kicad-9.0-releases && apt-get update; then
        DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends "${KICAD_PKGS[@]}"
    else
        log "KiCad PPA unavailable: falling back to the Ubuntu KiCad (no CLI ERC/DRC before 8.0)"
        install_apt "${KICAD_PKGS[@]}"
    fi
}

install_venv() {
    mkdir -p "$(dirname "$VENV")"
    [ -x "$VENV/bin/python" ] || python3 -m venv "$VENV"
    "$VENV/bin/python" -m pip install --quiet --upgrade pip wheel
    log "pip install into $VENV: ${PIP_PKGS[*]}"
    if ! "$VENV/bin/python" -m pip install --quiet "${PIP_PKGS[@]}"; then
        log "joint pip resolve failed; installing packages one by one"
        local p
        for p in "${PIP_PKGS[@]}"; do
            "$VENV/bin/python" -m pip install --quiet "$p" || log "pip FAILED: $p"
        done
    fi
}

install_openfoam() {
    compgen -G '/opt/openfoam*/etc/bashrc' >/dev/null && return 0
    log "adding the OpenFOAM Foundation apt repository"
    curl -fsSL https://dl.openfoam.org/gpg.key -o /etc/apt/trusted.gpg.d/openfoam.asc \
        && add-apt-repository -y http://dl.openfoam.org/ubuntu \
        && apt-get update \
        && DEBIAN_FRONTEND=noninteractive apt-get install -y openfoam12 \
        || log "OpenFOAM install FAILED: mark CFD BLOCKED and use a 1-D / analytical model"
}

row() { printf '%-14s %-8s %s\n' "$1" "$2" "$3"; }

status_table() {
    local fails=0 v
    printf '%-14s %-8s %s\n' TOOL STATUS VERSION
    for t in ccx gmsh ngspice blender kicad-cli java cppcheck pandoc rsvg-convert; do
        if command -v "$t" >/dev/null 2>&1; then
            case "$t" in
                ccx) v=$(ccx -v 2>&1 | grep -m1 -i version) ;;
                ngspice) v=$(ngspice --version 2>&1 | grep -m1 -io 'ngspice-[0-9][^ ]*') ;;
                blender) v=$(blender -v 2>/dev/null | head -1) ;;
                kicad-cli) v=$(kicad-cli version 2>/dev/null | head -1) ;;
                java) v=$(java -version 2>&1 | head -1) ;;
                *) v=$("$t" --version 2>&1 | head -1) ;;
            esac
            row "$t" OK "${v:-?}"
        else
            row "$t" MISSING ""
            fails=$((fails + 1))
        fi
    done
    if [ -x "$VENV/bin/python" ]; then
        local py_out py_missing
        py_out=$("$VENV/bin/python" - "${PY_IMPORTS[@]}" <<'PY' 2>/dev/null
import importlib, importlib.metadata as md, sys
missing = 0
for name in sys.argv[1:]:
    try:
        mod = importlib.import_module(name)
    except Exception:
        missing += 1
        print(f"{'py:' + name:<14} MISSING")
        continue
    try:
        ver = md.version(name)
    except Exception:
        ver = getattr(mod, "__version__", "?")
    print(f"{'py:' + name:<14} OK       {ver}")
print(f"PY_MISSING={missing}")
PY
)
        printf '%s\n' "$py_out" | grep -v '^PY_MISSING='
        py_missing=$(printf '%s\n' "$py_out" | sed -n 's/^PY_MISSING=//p')
        fails=$((fails + ${py_missing:-${#PY_IMPORTS[@]}}))
        if [ -x "$VENV/bin/pio" ]; then row pio OK "$("$VENV/bin/pio" --version 2>/dev/null)"; else row pio MISSING ""; fails=$((fails + 1)); fi
    else
        row venv MISSING "$VENV"
        fails=$((fails + 1))
    fi
    if command -v freecadcmd >/dev/null 2>&1; then row freecadcmd OK optional; else row freecadcmd ABSENT "optional (--with-freecad)"; fi
    if compgen -G '/opt/openfoam*/etc/bashrc' >/dev/null; then row openfoam OK "$(ls -d /opt/openfoam* | head -1)"; else row openfoam ABSENT "optional (--with-openfoam)"; fi
    return "$fails"
}

if [ "$CHECK_ONLY" -eq 0 ]; then
    if [ "$(id -u)" -ne 0 ]; then
        echo "run as root (apt installs)" >&2
        exit 2
    fi
    log "apt-get update"
    apt-get update
    install_apt "${APT_PKGS[@]}"
    install_kicad
    install_venv
    [ "$WITH_FREECAD" -eq 1 ] && install_apt freecad
    [ "$WITH_OPENFOAM" -eq 1 ] && install_openfoam
fi

status_table
fails=$?
if [ "$fails" -gt 0 ]; then
    log "$fails required tool(s) missing"
    exit 1
fi
log "toolchain ready (venv: $VENV)"