feat(settings-audit): Add Claude Code settings optimizer skill
- Add new 00-claude-code-setting skill for token usage optimization - Includes audit scripts for MCP servers, CLAUDE.md, and extensions - Auto-fix capability with backup for serverInstructions and frontmatter - Add YAML frontmatter to 17 command files - Target: keep baseline under 30% of 200K context limit Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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custom-skills/00-claude-code-setting/code/scripts/auto_fix.py
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173
custom-skills/00-claude-code-setting/code/scripts/auto_fix.py
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#!/usr/bin/env python3
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"""
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Auto-Fix Script
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Applies safe fixes to Claude Code configuration with backup.
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"""
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import json
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import shutil
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import sys
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from datetime import datetime
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from pathlib import Path
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# serverInstructions templates for common MCP servers
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SERVER_INSTRUCTIONS = {
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"playwright": "Browser automation for web interaction. Use for: SEO audits, page analysis, screenshots, form testing, Core Web Vitals. Keywords: browser, page, screenshot, click, navigate, DOM, selector",
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"puppeteer": "Chrome automation for web testing. Use for: SEO audits, page rendering, JavaScript site testing. Keywords: browser, chrome, headless, screenshot, page",
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"notion": "Notion workspace integration. Use for: saving research, documentation, project notes, knowledge base. Keywords: notion, page, database, wiki, notes, save",
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"github": "GitHub repository management. Use for: commits, PRs, issues, code review. Keywords: git, github, commit, pull request, issue, repository",
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"postgres": "PostgreSQL database queries. Use for: data analysis, SQL queries, analytics. Keywords: sql, query, database, table, select, analytics",
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"postgresql": "PostgreSQL database queries. Use for: data analysis, SQL queries, analytics. Keywords: sql, query, database, table, select, analytics",
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"bigquery": "Google BigQuery for large-scale analysis. Use for: analytics queries, data warehouse. Keywords: bigquery, sql, analytics, data warehouse",
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"firecrawl": "Web scraping and crawling. Use for: site crawling, content extraction, competitor analysis. Keywords: crawl, scrape, extract, spider, sitemap",
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"slack": "Slack workspace integration. Use for: messages, notifications, team communication. Keywords: slack, message, channel, notification",
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"linear": "Linear issue tracking. Use for: issue management, project tracking. Keywords: linear, issue, task, project, sprint",
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"memory": "Persistent memory across sessions. Use for: storing preferences, context recall. Keywords: remember, memory, store, recall",
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"filesystem": "Local file operations. Use for: file reading/writing, directory management. Keywords: file, directory, read, write, path",
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"chrome-devtools": "Chrome DevTools for debugging. Use for: GTM debugging, network analysis, console logs. Keywords: devtools, chrome, debug, network, console",
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}
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class AutoFixer:
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def __init__(self, dry_run: bool = True):
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self.dry_run = dry_run
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self.fixes = []
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self.backup_dir = Path.home() / ".claude" / "backups" / datetime.now().strftime("%Y%m%d_%H%M%S")
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def backup_file(self, path: Path) -> bool:
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"""Create backup before modifying."""
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if not path.exists():
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return True
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try:
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backup_path = self.backup_dir / path.relative_to(Path.home())
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backup_path.parent.mkdir(parents=True, exist_ok=True)
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shutil.copy2(path, backup_path)
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return True
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except Exception as e:
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print(f"Warning: Could not backup {path}: {e}", file=sys.stderr)
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return False
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def fix_mcp_instructions(self, settings_path: Path) -> list:
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"""Add serverInstructions to MCP servers."""
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fixes = []
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try:
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with open(settings_path) as f:
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settings = json.load(f)
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except (json.JSONDecodeError, IOError) as e:
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return [f"Error reading {settings_path}: {e}"]
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servers = settings.get("mcpServers", {})
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modified = False
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for name, config in servers.items():
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if not isinstance(config, dict):
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continue
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if "serverInstructions" in config:
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continue
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# Find matching template
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instructions = None
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name_lower = name.lower()
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for key, template in SERVER_INSTRUCTIONS.items():
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if key in name_lower:
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instructions = template
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break
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if not instructions:
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instructions = f"External tool: {name}. Use when this functionality is needed."
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if self.dry_run:
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fixes.append(f"[DRY RUN] Would add serverInstructions to '{name}'")
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else:
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config["serverInstructions"] = instructions
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modified = True
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fixes.append(f"Added serverInstructions to '{name}'")
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if modified and not self.dry_run:
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self.backup_file(settings_path)
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with open(settings_path, 'w') as f:
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json.dump(settings, f, indent=2)
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return fixes
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def fix_command_frontmatter(self, cmd_path: Path) -> str | None:
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"""Add frontmatter to command missing it."""
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try:
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content = cmd_path.read_text()
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except IOError:
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return None
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if content.startswith('---'):
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return None
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new_content = f'''---
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description: {cmd_path.stem.replace('-', ' ').title()} command
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---
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{content}'''
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if self.dry_run:
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return f"[DRY RUN] Would add frontmatter to {cmd_path.name}"
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self.backup_file(cmd_path)
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cmd_path.write_text(new_content)
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return f"Added frontmatter to {cmd_path.name}"
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def run(self) -> dict:
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"""Apply all fixes."""
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results = {"applied": [], "skipped": [], "errors": []}
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# Fix MCP settings
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settings_paths = [
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Path.home() / ".claude" / "settings.json",
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Path.cwd() / ".claude" / "settings.json"
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]
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for path in settings_paths:
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if path.exists():
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fixes = self.fix_mcp_instructions(path)
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results["applied"].extend(fixes)
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# Fix commands without frontmatter
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cmd_dirs = [
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Path.home() / ".claude" / "commands",
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Path.cwd() / ".claude" / "commands"
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]
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for cmd_dir in cmd_dirs:
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if cmd_dir.exists():
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for cmd_file in cmd_dir.glob("*.md"):
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fix = self.fix_command_frontmatter(cmd_file)
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if fix:
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results["applied"].append(fix)
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return results
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def main():
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import argparse
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parser = argparse.ArgumentParser(description="Auto-fix Claude Code settings")
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parser.add_argument("--apply", action="store_true", help="Apply fixes (default is dry-run)")
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args = parser.parse_args()
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fixer = AutoFixer(dry_run=not args.apply)
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results = fixer.run()
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print(json.dumps(results, indent=2))
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if fixer.dry_run:
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print("\n[DRY RUN] No changes applied. Use --apply to apply fixes.", file=sys.stderr)
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else:
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print(f"\n[APPLIED] {len(results['applied'])} fixes.", file=sys.stderr)
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if fixer.backup_dir.exists():
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print(f"Backups: {fixer.backup_dir}", file=sys.stderr)
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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