diff --git a/manifest.json b/manifest.json
index 8d6cefe..222fab3 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,12 +1,10 @@
 {
   "version": "2",
-  "updated_at": "2026-05-15T12:29:33Z",
   "skills": {
     "databricks-apps": {
       "version": "0.1.1",
       "description": "Databricks Apps development and deployment (evaluates analytics vs synced tables data access)",
       "experimental": false,
-      "updated_at": "2026-05-15T12:19:02Z",
       "files": [
         "SKILL.md",
         "agents/openai.yaml",
@@ -33,7 +31,6 @@
       "version": "0.1.0",
       "description": "Core Databricks skill for CLI, auth, and data exploration",
       "experimental": false,
-      "updated_at": "2026-05-12T22:07:25Z",
       "files": [
         "SKILL.md",
         "agents/openai.yaml",
@@ -48,7 +45,6 @@
       "version": "0.0.0",
       "description": "Declarative Automation Bundles (DABs) for deploying and managing Databricks resources",
       "experimental": false,
-      "updated_at": "2026-05-12T20:04:29Z",
       "files": [
         "SKILL.md",
         "agents/openai.yaml",
@@ -66,7 +62,6 @@
       "version": "0.1.0",
       "description": "Databricks Jobs orchestration and scheduling",
       "experimental": false,
-      "updated_at": "2026-05-12T20:04:29Z",
       "files": [
         "SKILL.md",
         "agents/openai.yaml",
@@ -78,7 +73,6 @@
       "version": "0.1.0",
       "description": "Databricks Lakebase Postgres: projects, scaling, connectivity, synced tables, and Data API",
       "experimental": false,
-      "updated_at": "2026-05-15T12:29:29Z",
       "files": [
         "SKILL.md",
         "agents/openai.yaml",
@@ -97,7 +91,6 @@
       "version": "0.1.0",
       "description": "Databricks Model Serving endpoint management",
       "experimental": false,
-      "updated_at": "2026-05-15T12:19:44Z",
       "files": [
         "SKILL.md",
         "agents/openai.yaml",
@@ -110,7 +103,6 @@
       "version": "0.1.0",
       "description": "Databricks Pipelines (DLT) for ETL and streaming",
       "experimental": false,
-      "updated_at": "2026-05-15T12:14:27Z",
       "files": [
         "SKILL.md",
         "agents/openai.yaml",
@@ -157,7 +149,6 @@
       "version": "0.1.0",
       "description": "Migrate Databricks workloads from classic compute to serverless compute, including compatibility checks and concrete fixes",
       "experimental": false,
-      "updated_at": "2026-05-12T20:04:29Z",
       "files": [
         "SKILL.md",
         "agents/openai.yaml",
diff --git a/scripts/skills.py b/scripts/skills.py
index cdfdcf7..0f5aa99 100644
--- a/scripts/skills.py
+++ b/scripts/skills.py
@@ -6,7 +6,6 @@
 import re
 import shutil
 import sys
-from datetime import datetime, timezone
 from pathlib import Path
 
 
@@ -92,8 +91,8 @@ def iter_skill_files(skill_path: Path):
     """Yield tracked files in a skill directory, skipping VCS-ignored noise.
 
     Filters out dot-prefixed paths (.DS_Store, .git, etc.), __pycache__
-    directories, and *.pyc files so manifest output and updated_at timestamps
-    stay reproducible across machines.
+    directories, and *.pyc files so manifest output stays reproducible
+    across machines.
     """
     for file_path in skill_path.rglob("*"):
         if not file_path.is_file():
@@ -108,22 +107,6 @@ def iter_skill_files(skill_path: Path):
         yield file_path
 
 
-def get_skill_updated_at(skill_path: Path) -> str:
-    """Get the most recent modification time of any file in the skill directory."""
-    latest_mtime = 0.0
-    for file_path in iter_skill_files(skill_path):
-        mtime = file_path.stat().st_mtime
-        if mtime > latest_mtime:
-            latest_mtime = mtime
-
-    if latest_mtime == 0.0:
-        return datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ")
-
-    return datetime.fromtimestamp(latest_mtime, timezone.utc).strftime(
-        "%Y-%m-%dT%H:%M:%SZ"
-    )
-
-
 # ---------------------------------------------------------------------------
 # Sync
 # ---------------------------------------------------------------------------
@@ -132,7 +115,7 @@ def sync_assets(repo_root: Path) -> int:
     """Copy shared assets from repo root into each skill directory.
 
     Only writes when content differs. Uses shutil.copy2 to preserve mtime
-    from the source so that skill updated_at timestamps stay stable.
+    from the source.
 
     Returns count of files written.
     """
@@ -216,7 +199,6 @@ def generate_manifest(repo_root: Path) -> dict:
             "version": extract_version_from_skill(skill_dir),
             "description": metadata.get("description", ""),
             "experimental": metadata.get("experimental", False),
-            "updated_at": get_skill_updated_at(skill_dir),
             "files": files,
         }
 
@@ -231,7 +213,6 @@ def generate_manifest(repo_root: Path) -> dict:
 
     return {
         "version": "2",
-        "updated_at": datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"),
         "skills": skills,
     }
 
@@ -243,12 +224,10 @@ def generate_manifest(repo_root: Path) -> dict:
 def normalize_manifest(manifest: dict) -> dict:
     """Normalize manifest for comparison by excluding volatile fields."""
     normalized = manifest.copy()
-    normalized.pop("updated_at", None)
 
     skills = {}
     for name, skill in manifest.get("skills", {}).items():
         skill_copy = skill.copy()
-        skill_copy.pop("updated_at", None)
         skill_copy.pop("base_revision", None)
         skills[name] = skill_copy