This record as markdown: /tools/git/git-show.md
What git_show does on Git
AI agents call git_show to retrieve information from Git without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why git_show is rated Low
The git_show command retrieves historical commit information (files, diffs, metadata) from a repository. It is inherently a read operation with no side effects—it cannot create, modify, delete, or execute code. The blast radius is minimal since misuse would only expose existing commit data already in the repository.
From the tool's definition Tool name 'git_show' and description 'Show the contents of a commit' indicate a read-only operation that retrieves and displays commit data without modifying anything.
Attacks that exploit this kind of access
The rule that runs git_show safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Git, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For git_show, this is the rule to start with:
git_show is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Git, apply this rule, and every git_show call is checked against it from then on.
Questions about git_show
Show the contents of a commit. It is categorised as a Read tool in the Git MCP Server, which means it retrieves data without modifying state.
Register the Git MCP server in PolicyLayer and add a rule for git_show: 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. Nothing to install.
git_show 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 git_show 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 git_show. 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.
git_show is provided by the Git MCP server (@modelcontextprotocol/server-git). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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