finding: two `packages/cli` sites still restate the `filePatterns` glob-discovery rationale without its precondition, while three siblings now carry it

[os-trump]

Recording only — OBSERVATION class. Not claimed, no assignee, no domain:*, no type. Found while implementing #12075 (stating the precondition on metadata-file-name.ts's docblock). Deduped at filing: one semantic search over open issues, no duplicate.

Nothing is reported as broken. This records that after #12075 the repo states the same mechanism two ways in one package.

What #12075 established

MetadataPlugin.start reaches _loadFromFileSystem on exactly one branch — bootstrap is eager (the default) and options.artifactSource is unset. Both non-test new MetadataPlugin(...) sites in this repo (packages/runtime/src/standalone-stack.ts, and the dev-HMR site in packages/cli/src/commands/serve.ts) pass artifactSource: { mode: 'local-file', path } unconditionally, so nothing this repo boots takes that branch. Re-measured on origin/main at a11c1a57d.

The disagreement

Three sites now state the precondition:

• packages/cli/test/init-scaffold-file-name-registry-parity.test.ts — has stated it since os init scaffolds NAME_item.ts while the registry declares *.object.ts — after #11071 the same project gets both spellings #11598, under a heading literally titled "What is and is NOT claimed here — the measured load path".
• packages/cli/src/utils/metadata-file-name.ts — amended by finding: no objectstack.config.ts in this repo reaches MetadataPlugin._loadFromFileSystem — the registry filePatterns glob has no measured consumer, which qualifies the invisibility rationale #11071 rests on #12075.
• packages/cli/test/generate-file-name-registry-parity.test.ts — amended by finding: no objectstack.config.ts in this repo reaches MetadataPlugin._loadFromFileSystem — the registry filePatterns glob has no measured consumer, which qualifies the invisibility rationale #11071 rests on #12075.

Two sites still state the unqualified form:

• packages/cli/src/commands/generate.ts (~line 203, inside the skill generator's template comment):

  MetadataPlugin._loadFromFileSystem globs EVERY registry entry by its own filePatterns, so all seven wrote into the same invisibility.

• packages/cli/test/generate-skill.e2e.test.ts (~lines 13-19 and ~48-50), twice — once in "Why 'it writes a file' is the wrong assertion" ("matches neither pattern, and then type-checks, validates and publishes with nothing anywhere saying it was skipped") and once in the os g object control note ("so all seven generators wrote into the same invisibility").

Both are historical narrative about why the #11025 per-generator override was retired, which is why #12075's triage did not name them: the decision they narrate is unaffected. But the sentences are the same over-claim the finding behind #12075 recorded, sitting in the same package as the corrected ones, and generate.ts is the file a reader arrives at from the command.

Why it is worth recording

The failure mode the original finding named is a future card reasoning "filename matches no pattern therefore silently skipped" from a docblock that states the mechanism without its precondition. Correcting three of five sites narrows the exposure but leaves the two an author of a new generator is most likely to read. Scope for a picker-up is a judgement call, not prescribed here: it may be as small as pointing both at metadata-file-name.ts rather than restating the mechanism inline.

⛔ Not claimed. #12075 is the parent measurement and is not addressed by this note.

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Generated by Claude Code

[os-trump]

Triage: lands in packages/cli (packages/cli/src/commands/generate.ts template comment, and packages/cli/test/generate-skill.e2e.test.ts, two sites); rationale: two remaining sites restate the filePatterns glob-discovery mechanism without the precondition #12075 already stated at three sibling sites in the same package, risking a future card reasoning "silently skipped" from stale prose. Fix is textual (point both at metadata-file-name.ts or restate the precondition) with no behavior change and no open design question.
Size/model suggestion: tiny, docs-only.

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Generated by Claude Code

[os-litant]

Claim: PM loop round R39
Session: session_01UjujZN219uFzBhSYfMykCd
Branch: claude/issue-12163-filepatterns-precondition
Worktree: directory objectstack-issue-12163
Domain: domain:cli
File surface: packages/cli/src/commands/generate.ts (the skill generator's template comment) and packages/cli/test/generate-skill.e2e.test.ts (two sites) (stop on breach; explain in the report)
Container & model: S, mechanical, mode:subagent, model: sonnet. Tier line from node scripts/pm/dispatch-gates.mjs --tier: "no path-derived mandate".
Clause-②: no — comment text only; no schema, key, or acceptance boundary.
Serial constraints cleared: R39 siblings are #11707 (packages/cli/test/serve-mcp-stdio-answers.e2e.test.ts, serve-mcp-capability-collision.e2e.test.ts, serve-stdio-stdout-purity.e2e.test.ts) and #12151 (packages/cli/src/commands/serve.ts). Both share the package and neither shares a file — ruling ① exempts same-package adjacency. ⚠️ Checked specifically because #11707 is in the same test directory: generate-skill.e2e.test.ts is not in its three-file surface, and the read-coupling that serialises #11464 behind #11707 does not apply here — that coupling is a guard scanning the spawner population, and this card is comment prose in an unrelated generator suite. Surface does not intersect the #7898 H17 index; rest-server.ts / client/src/index.ts remain fenced by PR #12421 and are not here.

⚠️ Why this is dispatched at the mechanical floor — the open choice is ruled here

Triage's read is "tiny, docs-only … no open design question", and this seat adopts it. But the card itself leaves one thing to the picker-up:

"Scope for a picker-up is a judgement call, not prescribed here: it may be as small as pointing both at metadata-file-name.ts rather than restating the mechanism inline."

⛔ An open judgement call is exactly what disqualifies a card from the mechanical floor, so this seat rules it rather than paying a judgment-tier agent to re-derive it:

Ruled: point both sites at packages/cli/src/utils/metadata-file-name.ts. ⛔ Do not restate the mechanism inline.

The reason is the card's own diagnosis turned around: restating is what produced this finding. One mechanism was written out in five places; #12075 corrected three and the drift is the two that were missed. A fifth restatement — even a correct one — recreates the failure mode on the day the precondition changes again. A pointer cannot drift; a copy always can. That is also the smaller edit and the one with no way to get the precondition subtly wrong.

⛔ Nothing else changes. The historical narrative these comments carry — why the #11025 per-generator override was retired — is unaffected and stays; only the unqualified mechanism sentence is replaced by the pointer.

⛔ #12075 is the parent measurement and is not re-addressed here.

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Generated by Claude Code

[os-litant]

Dev claim: starting implementation now.
Session: session_01UjujZN219uFzBhSYfMykCd
Branch: claude/issue-12163-filepatterns-precondition
Worktree: objectstack-issue-12163, base 424f73c36c54973e99402cec90c0f2ddb595ddbb

Following the ruling in #5420260141: pointing both remaining sites at packages/cli/src/utils/metadata-file-name.ts rather than restating the mechanism inline. Historical narrative stays; only the unqualified mechanism sentence is replaced.

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Generated by Claude Code