chore(work): finish 02-pre-commit-check-script

docs/work/2026-05-14-library-evaluation-policy/02-pre-commit-check-script/_story.md

@@ -3,7 +3,7 @@ id: 02-pre-commit-check-script
 epic: 2026-05-14-library-evaluation-policy
 title: Pre-commit check script for library trace presence
 type: technical-story
-status: todo
+status: done
 feature: scripts
 depends-on: [01-trace-schema-foundation]
 blocks: [06-sandcastle-reviewer-prompt]
@@ -38,4 +38,4 @@ Human and agent reviewers cannot reliably check trace presence during code revie
 
 ## Tasks
 
-- [ ] Write `scripts/library-decisions/check.mjs` (imports schema from Story 01; parses `git diff --cached` output; tier derivation from path; staged-trace presence + `decision: approved` check; exit-1 report with skill pointer); wire into `.husky/pre-commit`; write `check.test.mjs` integration tests with temp git repo fixture covering all 7 cases from Done when; all gates pass on this single commit.
+- [x] Write `scripts/library-decisions/check.mjs` (imports schema from Story 01; parses `git diff --cached` output; tier derivation from path; staged-trace presence + `decision: approved` check; exit-1 report with skill pointer); wire into `.husky/pre-commit`; write `check.test.mjs` integration tests with temp git repo fixture covering all 7 cases from Done when; all gates pass on this single commit.

docs/work/_state.json

@@ -1,5 +1,5 @@
 {
-  "updated_at": "2026-05-14T05:13:36.660Z",
+  "updated_at": "2026-05-14T05:29:32.781Z",
   "epics": {
     "2026-05-13-binder-wrap-helper": {
       "status": "done",
@@ -53,10 +53,10 @@
           "blocks": []
         },
         "02-pre-commit-check-script": {
-          "status": "todo",
+          "status": "done",
           "title": "Pre-commit check script for library trace presence",
           "ac_total": 1,
-          "ac_completed": 0,
+          "ac_completed": 1,
           "depends_on": [
             "01-trace-schema-foundation"
           ],
@@ -155,11 +155,6 @@
     }
   },
   "ready": [
-    {
-      "epic": "2026-05-14-library-evaluation-policy",
-      "story": "02-pre-commit-check-script",
-      "title": "Pre-commit check script for library trace presence"
-    },
     {
       "epic": "2026-05-14-library-evaluation-policy",
       "story": "03-claude-hooks",
@@ -170,6 +165,11 @@
       "story": "04-evaluate-library-skill",
       "title": "evaluate-library skill (SKILL.md + supporting files)"
     },
+    {
+      "epic": "2026-05-14-library-evaluation-policy",
+      "story": "06-sandcastle-reviewer-prompt",
+      "title": "Sandcastle reviewer prompt — Library-trace check section"
+    },
     {
       "epic": "2026-05-14-library-evaluation-policy",
       "story": "07-generator-pre-shipped-traces",
@@ -190,14 +190,6 @@
         "2026-05-14-library-evaluation-policy/04-evaluate-library-skill"
       ]
     },
-    {
-      "epic": "2026-05-14-library-evaluation-policy",
-      "story": "06-sandcastle-reviewer-prompt",
-      "title": "Sandcastle reviewer prompt — Library-trace check section",
-      "waiting_on": [
-        "2026-05-14-library-evaluation-policy/02-pre-commit-check-script"
-      ]
-    },
     {
       "epic": "2026-05-14-library-evaluation-policy",
       "story": "09-claude-md-update",