This record as markdown: /tools/agentics-ai-code-mcp/git-add.md
What git_add does on Code MCP Server
AI agents use git_add to create or update resources in Code MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Code MCP Server environment.
Why git_add is rated Medium
git_add stages changes for commit, which is a write operation that modifies the Git staging area. It is reversible (files can be unstaged), so it does not qualify as Destructive. The severity is high because an AI agent misusing this tool could stage unintended files, potentially exposing sensitive code or leading to unintended commits when combined with auto_commit_changes or similar tools on this server.
From the tool's definition Tool description: 'Stage files for commit'. The git add command modifies the Git index/staging area, which is a reversible operation that prepares files for version control.
Attacks that exploit this kind of access
The rule that runs git_add safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Code MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For git_add, this is the rule to start with:
git_add stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Code MCP Server, apply this rule, and every git_add call is checked against it from then on.
Questions about git_add
Stage files for commit. It is categorised as a Write tool in the Code MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Code MCP Server MCP server in PolicyLayer and add a rule for git_add: 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 Code MCP Server. Nothing to install.
git_add is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the git_add 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_add. 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_add is provided by the Code MCP Server MCP server (agentics-ai/code-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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