docs: record subagent outcomes for findings 2, 31, 38

Three findings from the simplification audit were independently
re-verified before execution, corrected, then implemented by
subagents:

- Finding 2 (check-executables-allow-sync): the audit's "drop it"
  option was found unsafe (ADR-0019 calls this failure mode silent,
  not "visible and recoverable" as claimed); shrunk instead of
  deleted, 231 -> 222 lines.
- Finding 31 (CONTEXT.md): "most terms unused by skills" was found
  overstated (13 of 28 are model-facing must-keeps); cut only the
  9 confirmed true orphans, 28 -> 19 terms. Also de-referenced one
  dangling pointer to a deleted term in the Flagged-ambiguities
  section.
- Finding 38 (pc-author/pc-run): line count was found overstated
  (598 actual vs. 689 claimed); trimmed the two generic reference
  files by 60 lines while preserving house-specific content.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YR2CjVumUbEGWcMikcoXBD

CONTEXT.md

@@ -171,8 +171,8 @@ _Avoid_: ticket, card, task
 - Skills can answer to two names, bare (`gitea-prs`) and namespaced (`gitea:gitea-prs`), depending on
   whether a native install exists at user scope alongside the apm one (ADR-0018) — resolved: write
   the bare name, which is the only form `apm install` produces.
-- "context" means both the model's live token window (the **Preload tax** sense) and the bounded
+- "context" means both the model's live token window and the bounded domain this file describes —
-  domain this file describes — resolved: unqualified "context" in this repo means the token window.
+  resolved: unqualified "context" in this repo means the token window.
 - "audit" was used for both an author skill's inline closeout and `forge`'s independent
   clean-context recheck — resolved: these are two distinct layers, kept separate precisely because
   an audit running in the same context as the work it checks shares that work's blind spots.

SIMPLIFICATION-AUDIT.md

@@ -66,7 +66,8 @@ This is the area you named as hardest to understand and slowest. Root cause: mos
    - `check-vale-style-sync`: 413 lines + 798 test lines guarding a byte-identical 526-line `vale-wrap.sh` and style directory copied between skill-audit and agent-audit. About 350 of its lines run Vale glob probes against the hook file patterns. Disappears if the two audit skills merge (finding 14); the probes belong in `test-vale-wrap.sh`.
    - `check-scope-walkup-sync`: 365 lines cross-checking four independent ports of the same package-root walk-up. Disappears if the ports share one script or the skills merge.
    - `check-marketplace-mirror-sync`: guards `.github/plugin/marketplace.json`. The script header calls it Copilot's legacy convention path and says Copilot also accepts the Claude path; the vendored Copilot docs list it as primary. Verify against current Copilot CLI before deleting hook, script, test, and mirror file.
-   - `check-executables-allow-sync`: 474 lines to assert one string equals kyberforge's version. A six-line grep, or drop it (the failure mode is visible and recoverable).
+   - [x] ~~`check-executables-allow-sync`: 474 lines to assert one string equals kyberforge's version. A six-line grep, or drop it (the failure mode is visible and recoverable).~~
+     > **Corrected then partially done (2026-09-13):** see commit `1b01e25` on `docs/simplification-audit`. Independent re-verification found "drop it" unsafe — ADR-0019's own Consequences section calls this failure mode *silent* and says a silent-staleness failure here is worse than the duplication the other gates catch, directly contradicting the finding's "visible and recoverable" claim. The hook stays. Shrunk `scripts/check-executables-allow-sync.sh` 231 → 222 lines by deduplicating two comment blocks that re-derived ADR-0019's own reasoning inline, replacing them with a pointer at the ADR. The dual-reader design (PyYAML plus a hand-rolled fallback, so a missing PyYAML can't silently skip the check) was found to be load-bearing, not redundant, and left intact; test file unchanged (behavior unaffected). All 23 test cases and the live pre-push hook run still pass.
    Effort S each, M for the walk-up.
 
 3. **Tests of the test harness: 1,090 lines testing 475 lines.** `test-run-tests.sh` and `test-run-bats.sh` defend "green either way" holes that exist only because the runners hand-roll TAP parsing and set-equality checks. Replace both runners with about 40 lines (`bats -r plugins` plus a parallel `find | xargs` over `test-*.sh`) and delete the meta-tests. `lib/batch-run.sh` stays; `sync-plugin-content.sh` sources it. Effort M.
@@ -153,7 +154,8 @@ The shared pattern: per-skill `README.md` files no model reads, a `docs/research
 30. [x] ~~**`LESSONS.md`: 41 entries, 2 graduated, about 12 stale.** Twelve entries from 2026-05-17 describe a write-skill / write-eval workflow whose skills no longer exist. One entry is open work labelled "Status: neither part landed". The longest eight are 200 to 550-word incident reports. Delete the stale entries, move open work to an issue, cap entries at about 60 words, target 100 lines. Effort S.~~
     > **Done (2026-09-12):** see commit `629320b` on `docs/simplification-audit`. 255→131 lines, 41→30 entries. Kept 3 of the same-dated entries (RLHF defaults, secrets-rule gap, HITL gap) — judged unrelated to the defunct write-skill/write-eval workflow and still applicable, so 10 deleted rather than 12. The "neither part landed" open-work entry (CONTEXT.md not `@import`ed at session start) was removed rather than filed as an issue — full text preserved in this session's transcript if wanted later.
 
-31. **`CONTEXT.md`: 28 terms, most used only by gates.md, scripts, or tests rather than by skills;** two (Preload tax, Skill context contract) are never used outside `CONTEXT.md` and ADR-0020. The preload-tax entry quotes two dated numbers then says not to quote them. The example dialogue and flagged-ambiguities sections are grill residue. Cut to about 20 one-line terms. Effort S.
+31. [x] ~~**`CONTEXT.md`: 28 terms, most used only by gates.md, scripts, or tests rather than by skills;** two (Preload tax, Skill context contract) are never used outside `CONTEXT.md` and ADR-0020. The preload-tax entry quotes two dated numbers then says not to quote them. The example dialogue and flagged-ambiguities sections are grill residue. Cut to about 20 one-line terms. Effort S.~~
+    > **Corrected then done (2026-09-13):** see commits `124ce6e` and follow-up on `docs/simplification-audit`. Independent re-verification found "most used only by gates.md/scripts/tests" overstated: 13 of 28 terms are actually referenced from model-facing `references/*.md` files skills load in normal use (Routing target, Hand-invoked skill, Dispatch body, Near-miss, Thin adapter, Provenance chain, Output profile, apm package, Plugin marketplace, HITL, Skill composition, Delegation discipline, holocron) and were kept untouched. Only the 9 terms confirmed as true orphans were removed after a fresh independent grep: Content mirror, apm-consumed install, Vale audit prefilter, Vacuous green, Management Application, Sycophancy, HOTL, Preload tax, Skill context contract — 28 → 19 terms. The preload-tax self-contradiction (quotes 23,427/10,478-char figures then says not to quote either) was confirmed verbatim and resolved by the entry's own deletion. The "example dialogue" and "flagged ambiguities" sections were found to be mandated by `grill-with-docs/references/context-format.md`'s template spec, not grill residue — left untouched, except one dangling bolded cross-reference to the now-deleted "Preload tax" term in a Flagged-ambiguities line, which was unbolded/de-referenced in place (the ambiguity resolution itself still holds without a defined glossary entry to point at).
 
 32. **Structure is described three ways** (README layout table, architecture.md plugin table, AGENTS.md structure bullets), and `VISION.md` carries a 35-line stack spec for a product that lives in another repo. One layout table in README; architecture.md keeps mechanics only; VISION drops the stack detail. Effort S.
 
@@ -173,7 +175,8 @@ Not covered by the area audits above; found on a final sweep of the root config
 37. **Two `.mcp.json` files declare an Obsidian vault server over `docs/`** (root and `plugins/bin/`; the other five plugin `.mcp.json` files are empty stubs), while `AGENTS.md` forbids using an external memory system for this repo. If the Obsidian tools are unused, drop both and the `reinject_mcp_servers` explanation in the bin README; the bin `plugin.json` pair regenerates. Effort S.
     > **Not proceeding (2026-09-13):** premise doesn't hold. The server exposes the repo's own git-tracked `docs/` folder — not an external/off-repo store — so it isn't the "external memory system" AGENTS.md's rule targets. It was deliberately added and versioned (3 commits), is documented as current intended behavior in both READMEs, and ADR-0018 uses it as its only concrete worked example of apm's MCP-dependency propagation mechanism actually working. No skill invokes the Obsidian tools as a workflow step, but that alone doesn't make the config dead. No changes made; recommend a human confirm whether the vault tooling is still wanted before removing it.
 
-38. **`pc-author` / `pc-run` (689 lines) carry generic pre-commit documentation.** `hooks-by-language.md` (128 lines) and `failure-patterns.md` (133) restate pre-commit.com. Keep the skills, trim to the house-specific rules. Effort S.
+38. [x] ~~**`pc-author` / `pc-run` (689 lines) carry generic pre-commit documentation.** `hooks-by-language.md` (128 lines) and `failure-patterns.md` (133) restate pre-commit.com. Keep the skills, trim to the house-specific rules. Effort S.~~
+    > **Corrected then done (2026-09-13):** see commit `a622200` on `docs/simplification-audit`. Independent re-verification found the 689-line figure overstated (actual combined size 598 lines) and the realistic cut smaller than a rewrite (~60-85 lines, concentrated in the two named reference files, not the SKILL.md files or the four short flow files, which are house-specific gates rather than restatement). Landed within that range: `hooks-by-language.md` 128 → 92 lines (collapsed six per-language tables repeating the same repo/rev/rationale into one shared-repo table plus a small other-repos table); `failure-patterns.md` 133 → 109 lines (removed generic SSH/proxy and shellcheck SC-code restatement, compressed generic schema-error bullets). Kept verbatim: both "Unverified — not in research corpus" flags, the rev-freshness caveat, the `rtk git add -u`/`rtk git commit` fix (ADR-0023), and the `pre-commit install -f` warning. Combined cut: 60 lines. Flat mirror regenerated and verified byte-identical.
 
 ## 7. Suggested order