AI agents call read_with_history to retrieve information from Fs Git without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a pure data retrieval operation—reading file content and querying its git history. It has no side effects, does not modify, delete, or execute any code. The blast radius of misuse is minimal, limited to potential information disclosure.
From the tool's definition Tool name 'read_with_history' and description 'Read file content with git history' indicate a read-only operation that retrieves data without modifying or deleting it.
Attacks that exploit this kind of access
Read file content with git history. It is categorised as a Read tool in the Fs Git MCP Server, which means it retrieves data without modifying state.
Register the Fs Git MCP server in PolicyLayer and add a rule for read_with_history: 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 Fs Git. Nothing to install.
read_with_history 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 read_with_history 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 read_with_history. 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.
read_with_history is provided by the Fs Git MCP server (wojons/fs-git-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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