diff --git a/app/git.js b/app/git.js
index 54a48ce..243b67c 100644
--- a/app/git.js
+++ b/app/git.js
@@ -20,6 +20,12 @@ export const SYNC_PATHS = [
   'CLAUDE.md',
   'GEMINI.md',
 ];
+const SYNC_TREE_PATHS = [
+  '.codex/skills/triage-findings',
+  '.claude/skills/triage-findings',
+  '.gemini/skills/triage-findings',
+  '.github/skills/triage-findings',
+];
 
 function makeRunner(spawn) {
   return function run(args, cwd, env) {
@@ -51,6 +57,26 @@ function readGitOutput(run, args, cwd, env) {
   }
 }
 
+function copyTree(sourceRoot, repoDir, relDir) {
+  const srcDir = path.join(sourceRoot, relDir);
+  if (!fs.existsSync(srcDir)) return [];
+
+  const copied = [];
+  for (const entry of fs.readdirSync(srcDir, { withFileTypes: true })) {
+    const relPath = path.join(relDir, entry.name);
+    const src = path.join(sourceRoot, relPath);
+    const dest = path.join(repoDir, relPath);
+    if (entry.isDirectory()) {
+      copied.push(...copyTree(sourceRoot, repoDir, relPath));
+      continue;
+    }
+    fs.mkdirSync(path.dirname(dest), { recursive: true });
+    fs.copyFileSync(src, dest);
+    copied.push(relPath);
+  }
+  return copied;
+}
+
 export function getRepoState(repoDir, _spawnSync = spawnSync) {
   const run = makeRunner(_spawnSync);
   const headSha = readGitOutput(run, ['rev-parse', 'HEAD'], repoDir);
@@ -101,21 +127,28 @@ export async function commitAndPush(workspace, repoDir, _spawnSync = spawnSync,
         run(['reset', '--hard', `origin/${PR_HEAD_BRANCH}`], repoDir);
       }
 
-      const existingSyncPaths = [];
+      const existingSyncPaths = new Set();
 
-      // Copy action skill files into the target repo. Existing files are overwritten;
+      // Copy action skill trees into the target repo. Existing files are overwritten;
       // missing source files are ignored so we do not delete target repo content.
+      for (const relDir of SYNC_TREE_PATHS) {
+        for (const relPath of copyTree(sourceRoot, repoDir, relDir)) {
+          existingSyncPaths.add(relPath);
+        }
+      }
+
+      // Copy standalone action files into the target repo. Existing files are overwritten.
       for (const relPath of SYNC_PATHS) {
         const src = path.join(sourceRoot, relPath);
         const dest = path.join(repoDir, relPath);
         if (fs.existsSync(src)) {
           fs.mkdirSync(path.dirname(dest), { recursive: true });
           fs.copyFileSync(src, dest);
-          existingSyncPaths.push(relPath);
+          existingSyncPaths.add(relPath);
         }
       }
 
-      if (existingSyncPaths.length > 0) {
+      if (existingSyncPaths.size > 0) {
         run(['add', ...existingSyncPaths], repoDir);
       }
       const generatedSyncPaths = GENERATED_SYNC_PATHS.filter(relPath => fs.existsSync(path.join(workspace, relPath)));
diff --git a/app/git.test.js b/app/git.test.js
index fd6543d..f4bafee 100644
--- a/app/git.test.js
+++ b/app/git.test.js
@@ -166,6 +166,21 @@ describe('commitAndPush', () => {
     assert.equal(fs.readFileSync(path.join(repoDir, 'CLAUDE.md'), 'utf8'), 'CLAUDE.md');
   });
 
+  it('recursively overwrites skill tree files from the action source', async () => {
+    const repoDir = path.join(workspace, 'repo');
+    const nestedRelPath = '.codex/skills/triage-findings/assets/example.txt';
+    const sourceNestedPath = path.join(sourceRoot, nestedRelPath);
+    const repoNestedPath = path.join(repoDir, nestedRelPath);
+    fs.mkdirSync(path.dirname(sourceNestedPath), { recursive: true });
+    fs.writeFileSync(sourceNestedPath, 'fresh');
+    fs.mkdirSync(path.dirname(repoNestedPath), { recursive: true });
+    fs.writeFileSync(repoNestedPath, 'stale');
+
+    await commitAndPush(workspace, repoDir, makeSpawn(), sourceRoot);
+
+    assert.equal(fs.readFileSync(repoNestedPath, 'utf8'), 'fresh');
+  });
+
   it('does not throw when git command fails', async () => {
     const failSpawn = () => ({ status: 1, stdout: '', stderr: 'fatal: error', error: null });
     await assert.doesNotReject(() => commitAndPush(workspace, path.join(workspace, 'repo'), failSpawn, sourceRoot));