The Agent Skills Directory

[COMMAND_EXECUTION]: The skill directs the agent to execute various command-line operations, including claude plugin list, codex plugin add, and executing local setup scripts to configure the plugin environment.
[EXTERNAL_DOWNLOADS]: The skill commands the agent to use npx --yes --package ecc-universal to download and run an unpinned package from the public npm registry, presenting a supply-chain risk if the package is compromised or typosquatted.
[DYNAMIC_EXECUTION]: The skill utilizes inline Node.js execution via node -e with arguments interpolated at runtime. It implements a defensive check requiring validation against ECC_VERSION_PATTERN to minimize command injection vulnerabilities.

configure-ecc