The Agent Skills Directory

[COMMAND_EXECUTION]: The skill includes several utility scripts (scripts/run_eval.py, scripts/improve_description.py, scripts/package_skill.py) that perform shell command execution using subprocess.run().
run_eval.py and improve_description.py execute the claude CLI to run prompts for benchmarking and optimization purposes.
package_skill.py executes a local validation script to ensure skill integrity before archiving.
[EXTERNAL_DOWNLOADS]: The workflow fetches live specifications and research data from several external domains using the WebFetch tool.
It fetches core specifications from agentskills.io and best practices from platform.claude.com (Anthropic).
It performs research by fetching content from skills.sh and reference implementations from the anthropics/skills GitHub repository.
These downloads target well-known documentation sources and trusted organizations as part of its core functionality.
[DYNAMIC_EXECUTION]: The skill is designed to generate and execute dynamic content as part of its lifecycle.
It generates new SKILL.md files and associated scripts based on user descriptions and fetched specifications.
The evaluation system executes this generated content using the claude CLI to verify task completion and trigger accuracy.
[INDIRECT_PROMPT_INJECTION]: The skill possesses a significant attack surface for indirect prompt injection due to its processing of untrusted external content and user inputs into generated instructions.
Ingestion points: Data is ingested via WebFetch from multiple external sources and via AskUserQuestion from the user.
Boundary markers: The workflow utilizes EnterPlanMode to require explicit user approval of a blueprint before any files are written, and includes an 'Anti-Hallucination' section for verification logic.
Capability inventory: The skill has access to Bash, Write, Edit, WebFetch, and Task tools across its various phases.
Sanitization: The skill relies on user-in-the-loop approval and a static validator script to ensure the generated skill meets structural requirements.

create-skill