The Agent Skills Directory

[COMMAND_EXECUTION]: The skill instructs the agent to perform local file system operations and package management tasks. These include using ls, grep, and cat to search for documentation within node_modules/@mastra/, and running shell commands for project initialization (npm init, npm install, npm run dev). These are routine developer activities.
[EXTERNAL_DOWNLOADS]: The skill refers to official NPM packages (@mastra/core, @mastra/memory, etc.) and recommends fetching documentation from https://mastra.ai/llms.txt. These resources are consistent with the framework's own documentation and distribution channels.
[PROMPT_INJECTION]: The guide includes a strong instruction to the agent to prioritize current documentation over its internal training data ("Everything you know about Mastra is likely outdated or wrong. Never rely on memory."). While this uses patterns similar to system prompt overrides, it is scoped to technical API accuracy for a fast-moving framework and does not attempt to bypass safety filters.

mastra