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

docs/work/_state.json

@@ -1,5 +1,5 @@
 {
-  "updated_at": "2026-05-14T05:36:46.176Z",
+  "updated_at": "2026-05-14T05:49:49.519Z",
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       "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 @@
     }
   ],
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-      "epic": "2026-05-14-library-evaluation-policy",
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-      ]
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       "story": "09-claude-md-update",