chore(work): finish 04-evaluate-library-skill

docs/work/2026-05-14-library-evaluation-policy/04-evaluate-library-skill/_story.md

@@ -3,7 +3,7 @@ id: 04-evaluate-library-skill
 epic: 2026-05-14-library-evaluation-policy
 title: evaluate-library skill (SKILL.md + supporting files)
 type: technical-story
-status: todo
+status: done
 feature: tooling
 depends-on: [01-trace-schema-foundation]
 blocks: [05-human-guide]
@@ -43,4 +43,4 @@ Without a deterministic skill runbook, every agent evaluating a library does so
 
 ## Tasks
 
-- [ ] Investigate the existing skill registration pattern (read `.claude/settings.json` and one existing skill's SKILL.md to confirm format and registration key); then write all five skill files (`SKILL.md`, `POLICY.md`, `TRACE-TEMPLATE.md`, `EXAMPLES/approved-example.md`, `EXAMPLES/rejected-trpc-to-openapi.md`) and register the skill; all gates pass on this single commit.
+- [x] Investigate the existing skill registration pattern (read `.claude/settings.json` and one existing skill's SKILL.md to confirm format and registration key); then write all five skill files (`SKILL.md`, `POLICY.md`, `TRACE-TEMPLATE.md`, `EXAMPLES/approved-example.md`, `EXAMPLES/rejected-trpc-to-openapi.md`) and register the skill; all gates pass on this single commit.

docs/work/_state.json

@@ -1,5 +1,5 @@
 {
-  "updated_at": "2026-05-14T05:36:46.176Z",
+  "updated_at": "2026-05-14T05:49:49.519Z",
   "epics": {
     "2026-05-13-binder-wrap-helper": {
       "status": "done",
@@ -73,10 +73,10 @@
           "blocks": []
         },
         "04-evaluate-library-skill": {
-          "status": "todo",
+          "status": "done",
           "title": "evaluate-library skill (SKILL.md + supporting files)",
           "ac_total": 1,
-          "ac_completed": 0,
+          "ac_completed": 1,
           "depends_on": [
             "01-trace-schema-foundation"
           ],
@@ -157,8 +157,8 @@
   "ready": [
     {
       "epic": "2026-05-14-library-evaluation-policy",
-      "story": "04-evaluate-library-skill",
-      "title": "evaluate-library skill (SKILL.md + supporting files)"
+      "story": "05-human-guide",
+      "title": "Human reading-room guide — docs/guides/adding-a-library.md"
     },
     {
       "epic": "2026-05-14-library-evaluation-policy",
@@ -177,14 +177,6 @@
     }
   ],
   "blocked": [
-    {
-      "epic": "2026-05-14-library-evaluation-policy",
-      "story": "05-human-guide",
-      "title": "Human reading-room guide — docs/guides/adding-a-library.md",
-      "waiting_on": [
-        "2026-05-14-library-evaluation-policy/04-evaluate-library-skill"
-      ]
-    },
     {
       "epic": "2026-05-14-library-evaluation-policy",
       "story": "09-claude-md-update",