Search for roles from configured sources (GitHub repos, etc.). This searches remotely and shows available roles you can import.
AI agents call sources_search to retrieve information from Claude Role Library without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries external sources (like GitHub repositories) to discover and display available roles, returning information for the user to review. It has no side effects—it neither modifies data, executes code, deletes resources, nor initiates financial transactions. The blast radius of misuse is minimal; an agent could waste compute searching, but cannot cause harm through this operation alone.
From the tool's definition Tool description explicitly states it 'searches remotely' to 'show available roles you can import' with no mention of modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
Search for roles from configured sources (GitHub repos, etc.). This searches remotely and shows available roles you can import. It is categorised as a Read tool in the Claude Role Library MCP Server, which means it retrieves data without modifying state.
Register the Claude Role Library MCP server in PolicyLayer and add a rule for sources_search: 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 Role Library. Nothing to install.
sources_search 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 sources_search 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 sources_search. 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.
sources_search is provided by the Claude Role Library MCP server (tony427/claude-role-library). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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