save_session_summary · Metis Public Health MCP

WHAT IT DOES

What save_session_summary does on Metis Public Health

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

WHY IT NEEDS A POLICY

Why save_session_summary needs a policy

This tool creates or modifies data (a session summary) in a reversible manner. It does not delete, execute code, move money, or trigger external side effects. The lack of a description reduces confidence slightly, but the naming convention and context among sibling tools (add_memory_entry, add_journal_entry, etc.) clearly indicate a write operation.

From the tool's definition Tool name 'save_session_summary' indicates a write operation that creates or modifies a session summary record.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

save_session_summary Rate-limited

save_session_summary 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": {
    "save_session_summary": {
      "limits": [
        {
          "counter": "save_session_summary_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 Metis Public Health, so you can run agents against it safely.

FAQ

Questions about save_session_summary

What does the save_session_summary tool do? +

save_session_summary. It is categorised as a Write tool in the Metis Public Health MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on save_session_summary? +

Register the Metis Public Health MCP server in PolicyLayer and add a rule for save_session_summary: 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 Metis Public Health. Nothing to install.

What risk level is save_session_summary? +

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

Can I rate-limit save_session_summary? +

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

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

save_session_summary is provided by the Metis Public Health MCP server (sveritg/metis_ph). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.