auto(polish): W21 #8 autosar-swc-builder pass — description fix applied, STATUS regen

Autonomous daily run (Thursday POLISH).
- Rewrote autosar-swc-builder description + Usage triggers; re-zipped .skill archive
- Scoped to Classic Platform, redirects Adaptive traffic, expands trigger surface
- Wrote polish log; regenerated STATUS.md (autosar-swc last-touched -> 2026-05-21)

Generated by automotive-skills-daily-standup scheduled task.

docs/AUTONOMOUS_LOG.md

@@ -186,3 +186,18 @@ Standout finding is non-DoD and more impactful than the trigger gaps: the SKILL.
 - W21 target #5 (classifier freeze, `scripts/classify_skill.py` + golden-file test) still unserviced — carries forward. Three+ consecutive runs have hit classifier/regen bugs this would prevent.
 - Issue #8 (autosar-swc) will not get a pass this week if Thu services #9 — it carries to W22 PLAN. Note in Saturday's RELEASE notes.
 - Issue #2 ("goodd", empty body) still open and needs-triage — un-actioned again. POLISH is the wrong venue; flag for the human at Saturday's RELEASE if still open.
+
+## 2026-05-21 (autonomous run, POLISH)
+
+**Mode:** POLISH (Thursday)
+**Action:** Polished `autosar-swc-builder.skill` per W21 target #3 (issue #8, autosar cluster) — and, unlike the W21 8d/dbc passes, an actual fix was applied to the `.skill` archive: the frontmatter `description` and `## Usage` trigger line were rewritten, the archive re-zipped. Wrote `docs/skill-polish-log/autosar-swc-builder.md` (43 lines). Regenerated STATUS.md.
+**Files touched:** skills/autosar-swc-builder.skill, STATUS.md, docs/skill-polish-log/autosar-swc-builder.md, docs/AUTONOMOUS_LOG.md
+**Tests:** N/A (no test suite in this repo yet)
+**Skill count:** 76 builders / 76 reviewers / 100.0% paired
+**Open issues:** 9 (#2 needs-triage + #3-#6 W20 targets + #7-#10 W21 targets) — unchanged; POLISH does not open/close issues.
+**Notes:** Deviation from yesterday's follow-up, recorded deliberately: the 2026-05-20 dbc log recommended Thu service #9 uds-services-builder and let #8 autosar-swc slip to W22. I serviced #8 instead. Rationale — #8 is target #3 in the WEEK-W21 file (ahead of #9 in plan order), and on inspection autosar-swc-builder admitted a clean, in-allowlist small fix where the last two POLISH passes (8d, dbc) could only log proposals. Net effect is the same as the plan (one target serviced Thu, one slips to W22) — except the slipped target is now #9 uds-services, not #8, and #8 actually got fixed rather than just analysed. The fix: the description previously ended with the boilerplate self-trigger "Use this skill when the user mentions autosar swc builder" and never disambiguated Classic vs Adaptive. Rewrote it (723/1024 chars) to scope explicitly to Classic Platform, redirect Adaptive-platform traffic to `autosar-adaptive-app-builder`, and expand triggers to name sender-receiver/client-server port types, RTE events, ARXML SWC output, and the casual phrasing "define an AUTOSAR component" — satisfying all three issue-#8 DoD bullets. Body prose left untouched (no refactor); one residual non-redirecting "AUTOSAR Classic SWC" line in the body was left as cosmetic. Per the dbc follow-up I diffed the SKILL.md against actual ZIP contents — autosar-swc-builder's SKILL.md has no "Files in this skill" tree, so the dbc-style examples/-drift miss does not apply here; archive ships 7 files under references/ and scripts/.
+**Follow-ups:**
+- W21 target #9 uds-services-builder now carries to W22 PLAN (was #8 per yesterday's plan; swapped as explained above). W22 PLAN should also still pull calibration/mbse/sysml per the WEEK-W21 spread note.
+- W21 target #5/#10 (classifier freeze, `scripts/classify_skill.py` + golden-file test) STILL unserviced after the full Tue/Wed/Thu POLISH cycle — four+ consecutive runs have now flagged classifier/regen drift this would prevent. Strongly recommend W22 PLAN promote it to the Monday slot or have Saturday's RELEASE call it out.
+- Consider a symmetry pass on `autosar-adaptive-app-builder` so its description cross-references autosar-swc-builder the same way (Classic↔Adaptive redirect now only points one direction).
+- Issue #2 ("goodd", empty body) still open and needs-triage — un-actioned by POLISH again. Flag for the human at Saturday's RELEASE if still open.