feat(skills): audit scan results and block unroutable skills

src/skills/loader.ts

@@ -11,6 +11,7 @@ import { execSync } from 'child_process';
 import { platform } from 'os';
 import type { Skill, SkillManifest, SkillRequirements, SkillTier } from './types.js';
 import { scanSkillDirectory } from './scanner.js';
+import { auditLogger } from '../audit/index.js';
 
 function isStringArray(value: unknown): value is string[] {
   return Array.isArray(value) && value.every((item) => typeof item === 'string');
@@ -200,6 +201,15 @@ export function loadSkill(directory: string, tier: SkillTier): Skill | null {
   const instructions = readFileSync(instructionsPath, 'utf-8');
 
   const scan = scanSkillDirectory(absDir);
+  auditLogger?.skillsScan({
+    skill_name: basename(absDir),
+    tier,
+    phase: 'load',
+    ok: scan.ok,
+    error_count: scan.issues.filter(i => i.severity === 'error').length,
+    warn_count: scan.issues.filter(i => i.severity === 'warn').length,
+    issue_codes: Array.from(new Set(scan.issues.map(i => i.code))),
+  });
   const scanReasons = scan.issues.map((i) => `${i.code}: ${i.message}${i.path ? ` (${basename(i.path)})` : ''}`);
 
   const inferManifest = (): SkillManifest => {