Discover all available agents and skills from the .claude/ directory. Returns live filesystem data. Use when generic
AI agents call guidance_discover to retrieve information from Claude Flow without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool performs discovery/enumeration of agents and skills by reading from the .claude/ directory. It is non-destructive information retrieval with no side effects. While it could reveal sensitive system structure to a malicious agent, the inherent action is read-only, making it Read category. Severity is low because filesystem enumeration alone poses minimal risk compared to execution or deletion capabilities.
From the tool's definition "Discover all available agents and skills" and "Returns live filesystem data" indicate the tool queries and retrieves information without modifying or deleting data.
Attacks that exploit this kind of access
Discover all available agents and skills from the .claude/ directory. Returns live filesystem data. Use when generic. It is categorised as a Read tool in the Claude Flow MCP Server, which means it retrieves data without modifying state.
Register the Claude Flow MCP server in PolicyLayer and add a rule for guidance_discover: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Claude Flow. Nothing to install.
guidance_discover is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the guidance_discover rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for guidance_discover. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
guidance_discover is provided by the Claude Flow MCP server (claude-flow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.