This record as markdown: /tools/io-github-dave-london-git/clean.md
What clean does on Git
AI agents call clean to permanently remove resources in Git, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why clean is rated Critical
The tool performs an irreversible deletion of build artifacts (obj, bin directories and intermediate outputs). While scoped to build outputs rather than source code, the destruction of build state is an unrecoverable operation that could disrupt development workflows.
From the tool's definition Tool description states it 'remove[s] build outputs' using 'dotnet clean', which deletes files irreversibly. The operation cannot be undone through the tool itself.
Attacks that exploit this kind of access
The rule that runs clean 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 clean, this is the rule to start with:
clean is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Git, apply this rule, and every clean call is checked against it from then on.
Questions about clean
Runs dotnet clean to remove build outputs and returns structured results. It is categorised as a Destructive tool in the Git MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Git MCP server in PolicyLayer and add a rule for clean: 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.
clean is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the clean 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 clean. 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.
clean is provided by the Git MCP server (Dave-London/Pare). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Git, and thousands of servers like it.
Across the catalogue