The Agent Skills Directory

[DYNAMIC_CONTEXT_INJECTION]: The SKILL.md file uses the dynamic context syntax (!) to execute scripts/setup.sh immediately upon the skill being loaded or viewed. This allows the skill to perform system changes before the user explicitly grants permission for a specific action.
[EXTERNAL_DOWNLOADS]: The scripts/setup.sh script executes pip install markitdown-mcp, which downloads and installs a package from the public Python Package Index (PyPI).
[COMMAND_EXECUTION]: The setup script executes multiple shell commands to modify the system state, including claude mcp add to register new tools and directory creation via mkdir -p.
[DYNAMIC_EXECUTION]: The setup script contains an embedded Python script (via heredoc) that is executed at runtime to parse and modify the $HOME/.codex/config.yaml configuration file.

markitdown-setup