kage_pr_summarize

THE RISK

Medium Risk

Why kage_pr_summarize needs a policy

This tool creates or modifies data (memory summaries stored as git-tracked JSON per the server description) in a reversible manner. It synthesizes git diff metadata into memory records but does not execute arbitrary code, delete data, move funds, or trigger external operations with unpredictable side effects. The write is controlled, intentional, and part of a documented memory capture workflow.

From the tool's definition Tool description states: 'write repo-local change memory' and 'Create a PR/branch memory summary'. The verb 'write' is explicit and the action creates and stores memory records in the codebase.

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

POLICY

How to control kage_pr_summarize

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "kage_pr_summarize": {
      "limits": [
        {
          "counter": "kage_pr_summarize_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

kage_pr_summarize 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.

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

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about kage_pr_summarize

What does the kage_pr_summarize tool do? +

Create a PR/branch memory summary from local git diff metadata and write repo-local change memory. Use when a branch is ready to hand off. It is categorised as a Write tool in the Kage MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on kage_pr_summarize? +

Register the Kage MCP server in PolicyLayer and add a rule for kage_pr_summarize: 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 Kage. Nothing to install.

What risk level is kage_pr_summarize? +

kage_pr_summarize is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit kage_pr_summarize? +

Yes. Add a rate_limit block to the kage_pr_summarize 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 kage_pr_summarize completely? +

Set action: deny in the PolicyLayer policy for kage_pr_summarize. 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 kage_pr_summarize? +

kage_pr_summarize is provided by the Kage MCP server (@kage-core/kage-graph-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Kage tool call.

Start from Kage, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →