# skill-name > Brief description of what this skill does. Should be clear enough that Claude knows when to invoke it. Max 1024 characters. - Author: Michael Uloth - Repository: ooloth/dotfiles - Version: 20260119101853 - Stars: 18 - Forks: 0 - Last Updated: 2026-02-06 - Source: https://github.com/ooloth/dotfiles - Web: https://mule.run/skillshub/@@ooloth/dotfiles~skill-name:20260119101853 --- --- name: skill-name description: Brief description of what this skill does. Should be clear enough that Claude knows when to invoke it. Max 1024 characters. allowed-tools: [Bash] --- # Skill Name One-paragraph description of what this skill does and when to use it. ## MCP Code Execution Pattern This skill follows the pattern described in [Code Execution with MCP](https://www.anthropic.com/engineering/code-execution-with-mcp): 1. **Heavy processing in code** - Fetch/process data in Python/bash, not via Claude tools 2. **Filter before returning** - Return only relevant summaries, not raw data 3. **Cache intermediate results** - Avoid redundant API calls or expensive operations 4. **Use typed interfaces** - Type hints for reliability and clarity 5. **Deterministic security** - Never expose sensitive data in output ## Workflow Patterns Choose the workflow pattern that best fits your skill: ### Checklist Workflow For skills with sequential steps, use a checklist: ```markdown When invoked: 1. [ ] Fetch data from source 2. [ ] Validate data completeness 3. [ ] Process and filter results 4. [ ] Format output 5. [ ] Display summary ``` ### Conditional Workflow For skills with decision points, use conditional logic: ```markdown When invoked: If cached data exists and is fresh: - Load from cache - Display cached results Else: - Fetch fresh data - Process and cache - Display new results ``` ### Plan-Validate-Execute Pattern For skills that modify state or perform irreversible operations: ```markdown When invoked: 1. **Plan**: Show user what will happen 2. **Validate**: Check prerequisites and feasibility 3. **Execute**: Perform the operation 4. **Report**: Confirm results ``` See `example_skill.py` for implementation of the plan-validate-execute pattern. ## Progressive Disclosure Keep this SKILL.md under 500 lines. For detailed information: - Put workflow details in separate reference files - Claude loads reference files on-demand - Keep the main skill file focused on the workflow If this file grows too large, move detailed sections to a `references/` folder. ## Usage How Claude should invoke this skill: ```bash python3 ~/.claude/skills/skill-name/script.py [optional-args] ``` Or if using bash: ```bash bash ~/.claude/skills/skill-name/script.sh [optional-args] ``` ## What It Returns Describe the output format. For example: - Returns formatted markdown ready to display - Returns JSON for programmatic processing - Returns exit code 0 on success, 1 on error - Outputs to stdout (results) and stderr (errors/warnings) Example output: ``` # Example Output Summary: Processed 42 items in 1.2s Details: - Item 1: Status OK - Item 2: Status WARNING (details...) Next steps: [recommendations] ``` ## Processing Done by Skill List the steps this skill performs in code (not in Claude): 1. Fetch data from source (API, filesystem, command output) 2. Filter/transform data using business logic 3. Calculate derived metrics or summaries 4. Cache results for subsequent invocations 5. Format output for readability 6. Return only essential information ## Implementation Details ### Caching Strategy - **Cache location**: `~/.claude/.cache/skill-name.json` - **Cache invalidation**: Describe when cache is cleared/updated - **Cache structure**: Describe what data is cached and why ### Error Handling - Exits with code 1 on errors - Prints user-friendly error messages to stderr - Falls back to sensible defaults when possible - Never crashes silently ### Dependencies List any external dependencies: - Python 3.x required - Standard library modules: `json`, `subprocess`, `datetime` - External tools: `gh` CLI, `curl`, etc. - API requirements: GitHub token, etc. ## Design Rationale ### Why a Skill vs Agent? This operation is ideal for a skill because: - Heavy data processing that would consume many tokens if done via Claude tools - Deterministic logic that doesn't require Claude's reasoning - Results can be pre-filtered and summarized - Caching provides significant performance benefits ### Token Efficiency Estimated token savings compared to using Claude tools directly: - Before: ~X tokens (raw data + processing) - After: ~Y tokens (formatted summary) - Reduction: ~Z% token savings ## Future Enhancements Ideas for extending this skill: - Additional output formats - More filtering/sorting options - Integration with other tools - Performance optimizations