Lets an agent authenticate to APIs and MCP servers WITHOUT ever seeing secret values. Use whenever a task needs an API token, MCP token, password, or key. The agent passes a credential *reference* (a name); a trusted non-LLM broker resolves it from the OS keyring, injects it into the request, scrubs the response, and returns only scrubbed output. The secret value never enters the agent's context or the LLM.
How to install secret-guard?
canonical/copilot-collections/secret-guard
$npx -y skills add canonical/copilot-collections --skill secret-guardInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/canonical/copilot-collections" --skill "canonical/copilot-collections/secret-guard"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/canonical/copilot-collections" that are relevant to the current task. Run `npx skills add "https://github.com/canonical/copilot-collections"` and select the relevant skills, then follow their instructions.
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