feat: Auto-register ai-skills for extensions whenever applicable (github#1840)

* feat: Auto-register ai-skills for extensions whenever applicable

* fix: failing test

* fix: address copilot review comments – path traversal guard and use short_name in title

* fix: address remaining copilot review comments – is_file guard, skills type-validation, and exact extension ownership check on fallback rmtree

* fix: address copilot round-3 comments – align skill naming with presets.py convention, safe rmdir on fail, require SKILL.md for fallback rmtree, normalize skill_count in CLI

* fix: is_dir() guard in fast-path rmtree and fix ghost-skill assertion naming

* fix: path-traversal guard on skill_name in both rmtree paths of _unregister_extension_skills

* fix: add SKILL.md ownership check to fast-path rmtree and alias shadowed _get_skills_dir import

Author: dhilipkumars

README.md

@@ -292,7 +292,7 @@ The `specify` command supports the following options:
 | `--skip-tls`           | Flag     | Skip SSL/TLS verification (not recommended)                                                                                                                                                                                                                                                                                                                                               |
 | `--debug`              | Flag     | Enable detailed debug output for troubleshooting                                                                                                                                                                                                                                                                                                                                          |
 | `--github-token`       | Option   | GitHub token for API requests (or set GH_TOKEN/GITHUB_TOKEN env variable)                                                                                                                                                                                                                                                                                                                 |
-| `--ai-skills`          | Flag     | Install Prompt.MD templates as agent skills in agent-specific `skills/` directory (requires `--ai`)                                                                                                                                                                                                                                                                                       |
+| `--ai-skills`          | Flag     | Install Prompt.MD templates as agent skills in agent-specific `skills/` directory (requires `--ai`). Extension commands are also auto-registered as skills when extensions are added later.                                                                                                                                                                                               |
 | `--branch-numbering`   | Option   | Branch numbering strategy: `sequential` (default — `001`, `002`, `003`) or `timestamp` (`YYYYMMDD-HHMMSS`). Timestamp mode is useful for distributed teams to avoid numbering conflicts                                                                                                                                                                                                  |
 
 ### Examples

extensions/EXTENSION-USER-GUIDE.md

@@ -187,6 +187,21 @@ Provided commands:
    Check: .specify/extensions/jira/
 ```
 
+### Automatic Agent Skill Registration
+
+If your project was initialized with `--ai-skills`, extension commands are **automatically registered as agent skills** during installation. This ensures that extensions are discoverable by agents that use the [agentskills.io](https://agentskills.io) skill specification.
+
+```text
+✓ Extension installed successfully!
+
+Jira Integration (v1.0.0)
+  ...
+
+✓ 3 agent skill(s) auto-registered
+```
+
+When an extension is removed, its corresponding skills are also cleaned up automatically. Pre-existing skills that were manually customized are never overwritten.
+
 ---
 
 ## Using Extensions

src/specify_cli/__init__.py

@@ -3658,6 +3658,15 @@ def extension_add(
         for cmd in manifest.commands:
             console.print(f"  • {cmd['name']} - {cmd.get('description', '')}")
 
+        # Report agent skills registration
+        reg_meta = manager.registry.get(manifest.id)
+        reg_skills = reg_meta.get("registered_skills", []) if reg_meta else []
+        # Normalize to guard against corrupted registry entries
+        if not isinstance(reg_skills, list):
+            reg_skills = []
+        if reg_skills:
+            console.print(f"\n[green]✓[/green] {len(reg_skills)} agent skill(s) auto-registered")
+
         console.print("\n[yellow]⚠[/yellow]  Configuration may be required")
         console.print(f"   Check: .specify/extensions/{manifest.id}/")
 
@@ -3696,14 +3705,19 @@ def extension_remove(
     installed = manager.list_installed()
     extension_id, display_name = _resolve_installed_extension(extension, installed, "remove")
 
-    # Get extension info for command count
+    # Get extension info for command and skill counts
     ext_manifest = manager.get_extension(extension_id)
     cmd_count = len(ext_manifest.commands) if ext_manifest else 0
+    reg_meta = manager.registry.get(extension_id)
+    raw_skills = reg_meta.get("registered_skills") if reg_meta else None
+    skill_count = len(raw_skills) if isinstance(raw_skills, list) else 0
 
     # Confirm removal
     if not force:
         console.print("\n[yellow]⚠  This will remove:[/yellow]")
         console.print(f"   • {cmd_count} commands from AI agent")
+        if skill_count:
+            console.print(f"   • {skill_count} agent skill(s)")
         console.print(f"   • Extension directory: .specify/extensions/{extension_id}/")
         if not keep_config:
             console.print("   • Config files (will be backed up)")