Search for repositories on GitHub (returns minimal data).
AI agents call search_repositories to retrieve information from GitHub and AlphaVantage MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only search operation on GitHub's public repositories API. It retrieves information but does not create, modify, delete, or execute any operations. The 'returns minimal data' qualifier further confirms it is a safe information retrieval function. No blast radius from misuse beyond potential GitHub API rate limiting.
From the tool's definition Tool name 'search_repositories' and description 'Search for repositories on GitHub (returns minimal data)' indicate a query operation that retrieves public repository data without modification or side effects.
Attacks that exploit this kind of access
Search for repositories on GitHub (returns minimal data). It is categorised as a Read tool in the GitHub and AlphaVantage MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GitHub and AlphaVantage MCP Server MCP server in PolicyLayer and add a rule for search_repositories: 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 GitHub and AlphaVantage MCP Server. Nothing to install.
search_repositories 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 search_repositories 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 search_repositories. 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.
search_repositories is provided by the GitHub and AlphaVantage MCP Server MCP server (uditdev21/mcp-server). 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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