annotate_print · Kiln MCP: Risk & Policy

WHAT IT DOES

What annotate_print does on Kiln

AI agents use annotate_print to create or update resources in Kiln — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Kiln environment.

WHY IT NEEDS A POLICY

Why annotate_print needs a policy

The tool adds metadata (notes/annotations) to an already-completed print record. This is a Write operation: it modifies data (the print record) but does not execute code, delete data, or cause destructive side effects. The blast radius is minimal since annotations are informational, non-binding adjustments to records.

From the tool's definition Tool description states 'Add notes to a completed print record' — a create/modify operation on existing data that is reversible.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

annotate_print Rate-limited

annotate_print 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.

View as policy code

policy.json

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

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Kiln, so you can run agents against it safely.

FAQ

Questions about annotate_print

What does the annotate_print tool do? +

Add notes to a completed print record (e.g., quality observations, issues). It is categorised as a Write tool in the Kiln MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on annotate_print? +

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

What risk level is annotate_print? +

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

Can I rate-limit annotate_print? +

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

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

annotate_print is provided by the Kiln MCP server (codeofaxel/Kiln). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.