Low Risk

analyze_changed_code

Analyze code changes using git diff + static analysis

How to control analyze_changed_code ↓

AI agents call analyze_changed_code to retrieve information from MCP Prompts Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

This tool retrieves and analyzes code change data without creating, modifying, deleting, or executing code. Static analysis and git diff examination are read-only operations that produce insights without side effects. The low severity reflects minimal blast radius if misused — an agent could generate verbose or unhelpful analysis but cannot damage systems or data.

From the tool's definition Tool performs analysis of code changes via 'git diff + static analysis' — it reads and examines code without modifying, deleting, or executing it. The verb 'analyze' combined with inspection of git diffs indicates passive examination only.

Documented attack patterns abuse exactly the kind of access analyze_changed_code gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Prompts Server, and nothing reaches the server without passing your rules. This is the rule we recommend for analyze_changed_code:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "analyze_changed_code": {}
  }
}

analyze_changed_code is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register MCP Prompts Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Go deeper

What does the analyze_changed_code tool do? +

Analyze code changes using git diff + static analysis. It is categorised as a Read tool in the MCP Prompts Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on analyze_changed_code? +

Register the MCP Prompts Server MCP server in PolicyLayer and add a rule for analyze_changed_code: 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 MCP Prompts Server. Nothing to install.

What risk level is analyze_changed_code? +

analyze_changed_code is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit analyze_changed_code? +

Yes. Add a rate_limit block to the analyze_changed_code 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.

How do I block analyze_changed_code completely? +

Set action: deny in the PolicyLayer policy for analyze_changed_code. 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.

What MCP server provides analyze_changed_code? +

analyze_changed_code is provided by the MCP Prompts Server MCP server (sparesparrow/mcp-prompts). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP Prompts Server tool call.

Deterministic rules across all 51 MCP Prompts Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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51 MCP Prompts Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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