ESC G431

OK: component register: /tmp/aiflow-components-_lx7p6af/components.json (149 references); AI review is pending
Hint: Inventory every reference from the actual board and schematic: manufacturer, MPN, supplier code, package, value and ratings; group repeated exact parts and record their references. Do not invent an MPN or silently substitute a similar value/package. Distinguish populated parts, DNP parts and bare copper/mechanical features; a bare test pad needs no purchased component or fictitious 3D body.
Hint: Search the wiki FIRST for each exact manufacturer/MPN and supplier code; reuse the matching component page and inspect its symbol, footprint and STEP/WRL assets. A page existing is not proof its CAD bundle is complete. Record the page URL and missing assets per reference.
Hint: For missing identities or assets, use adom-parts-search next, then original manufacturer and distributor websites. Use Pup to navigate and download through the automated browser when curl/fetch is blocked or the site requires JavaScript; do not treat a blocked fetch as proof the part is unavailable. Read the relevant parts-search and Pup skills for current commands.
Hint: Verify manufacturer, exact ordering code, package dimensions, pin numbering and required electrical ratings against source evidence before accepting CAD or a candidate part. Preserve source URLs and provenance. Label generated or approximate models as such; never present an approximate body as a verified vendor model.
Hint: Global component pages are shared resources for ALL ADOM USERS, never a board-specific BOM dump. Create one only for a distinct reusable manufacturer part or independently specified reusable custom component, after searching for duplicates. Write a part-focused page with portable verified assets and provenance, and improve existing pages. Keep board references, unresolved identities, one-off land patterns, bare copper test pads and project-only assemblies inside the board project wiki page; do not create catalog placeholders or rename a one-off feature to make it appear global.
Hint: Use portable project/library model paths, preserve placement and routing, rerun kicad_model_check and inspect the saved board in native KiCad 3D. Report reference coverage, reused/created page URLs, unresolved identities and missing CAD separately. A successful download or wiki publication alone does not close a missing-model finding.
Hint: Judge quality per component, not per board screenshot: publish a linked visual register with top, bottom and oblique views. Check dimensions, units, terminal count and pitch, pin-1/polarity, body/pad alignment, standoff, materials and visible details. File resolution alone is not quality. Record pass, needs-work, reference-only or unknown with evidence and limits.
Hint: Prefer manufacturer CAD when the source permits the intended redistribution. Keep third-party/Ultra Librarian downloads as private reference-only inputs unless redistribution is explicitly permitted. Compare independently generated models against manufacturer drawings and permitted reference views; retain dimensional deviations and source hashes. Converting, extracting, recoloring, or etching a restricted model does not make it independently authored or license-cleared.
Hint: Offer optional MPN marking using adom/adom-chip-laser or the current adom-step2glb laser-etch service. Ask whether to enable it; default to unmarked models until the user chooses. Check the shared page cache first. Preserve the plain STEP and publish an additional marked STEP, derived GLB and reviewed thumbnails only for assets eligible for redistribution. Keep the mark clear of pin-1, polarity, terminals and optical/mechanical features. Marking is an identification aid, not evidence of actual factory top-marking, especially on tiny passives.
Hint: Cache reviewed artifacts on the existing global component page: source/plain STEP, optional MPN STEP, GLB, thumbnails and machine-readable provenance. Record input hash, generator/tool version, parameters, units, transforms, marking text/mode, reference evidence and review results. Cache keys must change when geometry, text or generator parameters change. Keep board-only transforms and mappings in the board project. Never claim cross-EDA parity without rendering the variant in the named native viewers.
Hint: MPN marking preference: ask. 'ask' means offer the option, not consent; 'off' preserves plain models; 'on' requests additional reviewed marked variants. Existing review notes are preserved on rerun; re-review when source properties or geometry changes.

PASS: early plan order, 149 references, explicit marking preference, preserved review notes, stale source invalidation, malformed register untouched.