Agent-Skills.md

Agent Skills: Claude Code Debug

Troubleshoot Claude Code extensions and behavior. Triggers on: debug, troubleshoot, not working, skill not loading, hook not running, agent not found.

UncategorizedID: 0xDarkMatter/claude-mods/claude-code-debug

Repository

0xDarkMatter/claude-mods
0xDarkMatter
3

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skills/claude-code-debug/SKILL.md

Skill Metadata

Name
claude-code-debug
Description
"Troubleshoot Claude Code extensions and behavior. Triggers on: debug, troubleshoot, not working, skill not loading, hook not running, agent not found."

Claude Code Debug

Troubleshoot extensions, hooks, and unexpected behavior.

Quick Diagnostics

# Enable debug mode
claude --debug

# Check loaded extensions
/hooks        # View registered hooks
/agents       # View available agents
/memory       # View loaded memory files
/config       # View current configuration

Common Issues

| Symptom | Quick Check | |---------|-------------| | Skill not activating | Verify description has trigger keywords | | Hook not running | Check chmod +x, run /hooks | | Agent not delegating | Add "Use proactively" to description | | MCP connection fails | Test server manually with npx | | Permission denied | Check settings.json allow rules |

Debug Mode Output

claude --debug
# Shows:
# - Hook execution and errors
# - Skill loading status
# - Subagent invocations
# - Tool permission decisions
# - MCP server connections

Quick Fixes

Skill Not Loading

# Check structure
ls -la .claude/skills/my-skill/
# Must have: SKILL.md

# Verify YAML frontmatter
head -10 .claude/skills/my-skill/SKILL.md
# Must start/end with ---

# Check name matches directory
grep "^name:" .claude/skills/my-skill/SKILL.md

Hook Not Executing

# Make executable
chmod +x .claude/hooks/my-hook.sh

# Test manually
echo '{"tool_name":"Bash"}' | .claude/hooks/my-hook.sh
echo $?  # Check exit code

# Verify JSON syntax
jq '.' ~/.claude/settings.json

Agent Not Being Used

# Check file location
ls ~/.claude/agents/
ls .claude/agents/

# Verify description includes "Use for:" or "Use proactively"
grep -i "use" agents/my-agent.md | head -5

# Explicitly request
# "Use the my-agent agent to analyze this"

Validation

# Run all validations
just test

# YAML validation only
just validate-yaml

# Name matching only
just validate-names

Official Documentation

  • https://code.claude.com/docs/en/hooks - Hooks reference
  • https://code.claude.com/docs/en/skills - Skills reference
  • https://code.claude.com/docs/en/sub-agents - Custom subagents
  • https://code.claude.com/docs/en/settings - Settings configuration

Additional Resources

  • ./references/common-issues.md - Issue → Solution lookup table
  • ./references/debug-commands.md - All inspection commands
  • ./references/troubleshooting-flow.md - Decision tree

See Also: claude-code-hooks for hook debugging, claude-code-templates for correct structure