fix(hooks): restore Linear issue reference check dropped during .mts refactor

Author: cursoragent

.git-hooks/_helpers.mts

@@ -198,6 +198,34 @@ export const scanNpxDlx = (text: string): LineHit[] => {
   return hits
 }
 
+// ── Linear issue reference scanner ─────────────────────────────────
+// CLAUDE.md "ABSOLUTE RULES": NEVER reference Linear issues in commits.
+// Team keys enumerated from the Socket workspace. PATCH listed before
+// PAT so the alternation matches the longer prefix first.
+
+const LINEAR_TEAM_KEYS =
+  'ASK|AUTO|BOT|CE|CORE|DAT|DES|DEV|ENG|INFRA|LAB|MAR|MET|OPS|PAR|PATCH|PAT|PLAT|REA|SALES|SBOM|SEC|SMO|SUP|TES|TI|WEB'
+
+const LINEAR_ISSUE_RE = new RegExp(
+  `(?:^|[^A-Za-z0-9_])((?:${LINEAR_TEAM_KEYS})-[0-9]+)(?:$|[^A-Za-z0-9_])`,
+  'gm',
+)
+
+const LINEAR_URL_RE = /linear\.app\/[A-Za-z0-9/_-]+/g
+
+export const scanLinearReferences = (commitMsg: string): string[] => {
+  const hits: string[] = []
+  const lines = commitMsg.split('\n').filter(l => !l.startsWith('#'))
+  const body = lines.join('\n')
+  for (const m of body.matchAll(LINEAR_ISSUE_RE)) {
+    hits.push(m[1]!)
+  }
+  for (const m of body.matchAll(LINEAR_URL_RE)) {
+    hits.push(m[0]!)
+  }
+  return hits.slice(0, 5)
+}
+
 // ── AI attribution scanner ─────────────────────────────────────────
 
 const AI_ATTRIBUTION_RE =

.git-hooks/commit-msg.mts

@@ -23,6 +23,7 @@ import {
   out,
   red,
   readFileForScan,
+  scanLinearReferences,
   scanSocketApiKeys,
   shouldSkipFile,
   stripAiAttribution,
@@ -67,10 +68,26 @@ const main = (): number => {
     }
   }
 
-  // Auto-strip AI attribution lines from the commit message.
   const commitMsgFile = process.argv[2]
   if (commitMsgFile && existsSync(commitMsgFile)) {
     const original = readFileSync(commitMsgFile, 'utf8')
+
+    // Block Linear issue references in the commit message.
+    const linearHits = scanLinearReferences(original)
+    if (linearHits.length) {
+      out(red('✗ Commit message references Linear issue(s):'))
+      for (const hit of linearHits) {
+        out(`  ${hit}`)
+      }
+      out(
+        red(
+          'Linear tracking lives in Linear. Remove the reference from the commit message.',
+        ),
+      )
+      errors++
+    }
+
+    // Auto-strip AI attribution lines from the commit message.
     const { cleaned, removed } = stripAiAttribution(original)
     if (removed > 0) {
       writeFileSync(commitMsgFile, cleaned)