59 lines
3.2 KiB
Markdown
59 lines
3.2 KiB
Markdown
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# Polish log — dfmea-builder.skill
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## 2026-05-27 (W22 #5 POLISH pass)
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**Mode:** read-only review (no edits to .skill applied)
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**Tracker:** issue #12
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### What's good
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- **Frontmatter clean.** `name` and `description` both present; description is 672 chars
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(well under the 1024 hard cap, plenty of headroom for future trigger phrasings).
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- **Description trigger surface is broad and concrete.** Covers the exact deliverable
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(AIAG-VDA 2019 Design FMEA workbook), the methodology distinction (7-step process,
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Action Priority lookup, NOT RPN multiplication), the visible outputs (12-tab xlsx,
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color-coded AP cells), and a "use this instead of freeform" assertion. Should fire
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reliably on "DFMEA", "Design FMEA", "AIAG-VDA", and adjacent phrasings.
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- **AIAG-VDA 2019 alignment is correct.** The replacement of classical RPN by the
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Action Priority lookup is the headline change in the 2019 harmonized edition, and
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the SKILL.md flags it prominently in both the description and the body.
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- **Body is well-structured.** Clear "When to use" list, JSON input example, 7-step
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walkthrough mapped to specific tabs, scripts invocation, analyst review checklist,
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output structure table (tabs 00–11), AP formula spelled out, common pitfalls.
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- **Bundled references are appropriate.** Severity / Occurrence / Detection tables
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plus the AP lookup table plus a methodology doc — exactly the AIAG-VDA reference
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set an analyst would expect to consult while filling out the worksheet.
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- **Examples directory has a realistic seed.** `sample_dfmea_input_esc.json` (ESC ECU)
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matches the example file path referenced in the SKILL.md body — no broken link.
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### What to fix
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Nothing critical. A few low-priority polish items noted for a future pass (NOT
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applied this run per the "small and shipped" rule):
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- **Description could optionally add casual trigger phrasings** in the style of
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fsc-builder and hara-builder (e.g., "even casual phrasings like 'I need a design
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FMEA for this ECU' or 'analyze the failure modes of my design'"). Current
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description trips on the literal terms but a casual phrase like "what could go
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wrong with this design" might miss. Low priority — most real users will say DFMEA
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explicitly. Defer.
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- **AP rule in body is a simplified prose summary**, not the full AIAG-VDA Table P.1.
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The bundled `references/action_priority_table.md` carries the authoritative table,
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so this is acceptable — the body is teaching intuition, not the contract. No fix.
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- **"Lessons Learned cross-reference" in description vs "Lessons Learned & Crossref"
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in the tab listing** — a minor naming inconsistency but both phrasings convey the
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same concept and the description form reads more naturally in prose. Defer.
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### Severity
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**Low.** No blocking issues; no required frontmatter missing; no description
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overflow; no broken file references; no methodology errors. Skill is in
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production-ready shape. Re-touch only if a downstream classifier flags a miss
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on the casual-phrase trigger surface.
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### Suggested edits
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None applied this pass. If a future pass wants to extend the description with
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casual triggers, it must stay under 1024 chars total (currently 672, so ~350 chars
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of headroom remain).
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