feat(mosaic): add constrained context recovery command

packages/mosaic/src/commands/skill.spec.ts

@@ -8,6 +8,7 @@ import {
   mkdirSync,
   mkdtempSync,
   readlinkSync,
+  readFileSync,
   rmSync,
   symlinkSync,
   writeFileSync,
@@ -26,6 +27,9 @@ import {
 const LEGACY_SYNC_SCRIPT = fileURLToPath(
   new URL('../../framework/tools/_scripts/mosaic-sync-skills', import.meta.url),
 );
+const CONTEXT_REFRESH_SOURCE_SKILL = fileURLToPath(
+  new URL('../../framework/skills/mosaic-context-refresh/SKILL.md', import.meta.url),
+);
 
 describe('Claude skill bridge', () => {
   let root: string;
@@ -360,6 +364,25 @@ describe('Claude skill bridge', () => {
   });
 
   describe('syncClaudeSkills', () => {
+    it('projects the durable context-refresh skill through the #824 bridge in a tmp root', () => {
+      expect(existsSync(CONTEXT_REFRESH_SOURCE_SKILL)).toBe(true);
+      const source = readFileSync(CONTEXT_REFRESH_SOURCE_SKILL, 'utf8');
+      expect(source).toContain('recover-context.py');
+      expect(source).toContain('middle drop is not represented as receipt-detectable');
+      const skillDir = createSkill('mosaic-context-refresh');
+      writeFileSync(join(skillDir, 'SKILL.md'), source);
+
+      const result = syncClaudeSkills(paths);
+
+      expect(result).toEqual({
+        registered: ['mosaic-context-refresh'],
+        repaired: [],
+        unchanged: [],
+        conflicts: [],
+      });
+      expectCorrectLink('mosaic-context-refresh');
+    });
+
     it('generically creates every missing canonical link and repairs managed broken links', () => {
       createSkill('added-after-setup');
       createSkill('another-new-skill');