Add comprehensive skills, agents, commands collection

- Added 44 external skills from obra/superpowers, ui-ux-pro-max-skill, claude-codex-settings
- Added 8 autonomous agents (commit-creator, pr-creator, pr-reviewer, etc.)
- Added 23 slash commands for Git/GitHub, setup, and plugin development
- Added hooks for code formatting, notifications, and validation
- Added MCP configurations for Azure, GCloud, Supabase, MongoDB, etc.
- Added awesome-openclaw-skills registry (3,002 skills referenced)
- Updated comprehensive README with full documentation

Sources:
- github.com/obra/superpowers (14 skills)
- github.com/nextlevelbuilder/ui-ux-pro-max-skill (1 skill)
- github.com/fcakyon/claude-codex-settings (29 skills, 8 agents, 23 commands)
- github.com/VoltAgent/awesome-openclaw-skills (registry)
- skills.sh (reference)
- buildwithclaude.com (reference)

commands/claude-codex-settings/github-dev-update-pr-summary.md

@@ -0,0 +1,118 @@
+# Claude Command: Update PR Summary
+
+Update PR description with automatically generated summary based on complete changeset.
+
+## Usage
+
+```bash
+/update-pr-summary <pr_number>    # Update PR description
+/update-pr-summary 131            # Example: update PR #131
+```
+
+## Workflow Steps
+
+1. **Fetch PR Information**:
+   - Get PR details using `gh pr view <pr_number> --json title,body,baseRefName,headRefName`
+   - Identify base branch and head branch from PR metadata
+
+2. **Analyze Complete Changeset**:
+   - **IMPORTANT**: Analyze ALL committed changes in the branch using `git diff <base-branch>...HEAD`
+   - PR description must describe the complete changeset across all commits, not just the latest commit
+   - Focus on what changed from the perspective of someone reviewing the entire branch
+   - Ignore unstaged changes
+
+3. **Generate PR Description**:
+   - Create brief summary (1 sentence or few words)
+   - Add few bullet points of key changes
+   - For significant changes, include before/after code examples in PR body
+   - Include inline markdown links to relevant code lines when helpful (format: `[src/auth.py:42](src/auth.py#L42)`)
+   - For config/API changes, use `mcp__tavily__tavily_search` to verify information and include source links inline
+   - Never include test plans in PR descriptions
+
+4. **Update PR Title** (if needed):
+   - Title should start with capital letter and verb
+   - Should NOT start with conventional commit prefixes (e.g. "fix:", "feat:")
+
+5. **Update PR**:
+   - Use `gh pr edit <pr_number>` with `--body` (and optionally `--title`) to update the PR
+   - Use HEREDOC for proper formatting:
+   ```bash
+   gh pr edit "$(
+     cat << 'EOF'
+   [PR description here]
+   EOF
+   )" < pr_number > --body
+   ```
+
+## PR Description Format
+
+```markdown
+[Brief summary in 1 sentence or few words]
+
+- [Key change 1 with inline code reference if helpful]
+- [Key change 2 with source link if config/API change]
+- [Key change 3]
+
+[Optional: Before/after code examples for significant changes]
+```
+
+## Examples
+
+### Example 1: Config/API Change with Source Links
+
+```markdown
+Update Claude Haiku to version 4.5
+
+- Model ID: claude-3-haiku-20240307 → claude-haiku-4-5-20251001 ([source](https://docs.anthropic.com/en/docs/about-claude/models/overview))
+- Pricing: $0.80/$4.00 → $1.00/$5.00 per MTok ([source](https://docs.anthropic.com/en/docs/about-claude/pricing))
+- Max output: 4,096 → 64,000 tokens ([source](https://docs.anthropic.com/en/docs/about-claude/models/overview))
+```
+
+### Example 2: Code Changes with File Links
+
+````markdown
+Refactor authentication to use async context manager
+
+- Replace synchronous auth flow with async/await pattern in [src/auth.py:15-42](src/auth.py#L15-L42)
+- Add context manager support for automatic cleanup
+
+Before:
+
+```python
+def authenticate(token):
+    session = create_session(token)
+    return session
+```
+
+After:
+
+```python
+async def authenticate(token):
+    async with create_session(token) as session:
+        return session
+```
+````
+
+### Example 3: Simple Feature Addition
+
+```markdown
+Add user profile export functionality
+
+- Export user data to JSON format in [src/export.py:45-78](src/export.py#L45-L78)
+- Add CLI command `/export-profile` in [src/cli.py:123](src/cli.py#L123)
+- Include email, preferences, and activity history in export
+```
+
+## Error Handling
+
+**Pre-Analysis Verification**:
+
+- Verify PR exists and is accessible
+- Check tool availability (`gh auth status`)
+- Confirm authentication status
+
+**Common Issues**:
+
+- Invalid PR number → List available PRs
+- Missing tools → Provide setup instructions
+- Auth issues → Guide through authentication