读取指定目录的 package.json 并返回关键信息
AI agents call detectRepo to retrieve information from Readme-builder-mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only reads and retrieves information from package.json files—a standard metadata file. It performs no write, execution, deletion, or financial operations. The action is purely informational with no side effects, making it a Read category tool with low severity.
From the tool's definition Tool description states '读取指定目录的 package.json 并返回关键信息' (reads the package.json file of a specified directory and returns key information). The verb '读取' (read) indicates data retrieval with no modification.
Attacks that exploit this kind of access
读取指定目录的 package.json 并返回关键信息. It is categorised as a Read tool in the Readme-builder-mcp MCP Server, which means it retrieves data without modifying state.
Register the Readme-builder- MCP server in PolicyLayer and add a rule for detectRepo: 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 Readme-builder-mcp. Nothing to install.
detectRepo 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 detectRepo 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 detectRepo. 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.
detectRepo is provided by the Readme-builder- MCP server (mingzhu3377/readme-builder-mcp). 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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