AI agents call get_last_git_tag to retrieve information from Git MCP 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 operation: it fetches and returns the last git tag from a repository. There are no side effects, no data modification, no code execution, and no destructive or financial implications. It is a straightforward information retrieval operation, consistent with the Read category.
From the tool's definition Tool name 'get_last_git_tag' and description 'Find the last git tag in the repository' indicate a query operation that retrieves tag information without modifying state.
Attacks that exploit this kind of access
Find the last git tag in the repository. It is categorised as a Read tool in the Git MCP MCP Server, which means it retrieves data without modifying state.
Register the Git MCP server in PolicyLayer and add a rule for get_last_git_tag: 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 Git MCP. Nothing to install.
get_last_git_tag 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 get_last_git_tag 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 get_last_git_tag. 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.
get_last_git_tag is provided by the Git MCP server (kjozsa/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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