reading_stack_add

Put something in the reading stack, or change what state it is in.

SERVERMetis Public Health SOURCEsveritg/metis_ph

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/sveritg-metis-ph/reading-stack-add.md

WHAT IT DOES

What reading_stack_add does on Metis Public Health

AI agents use reading_stack_add 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.

RISK

Why reading_stack_add is rated Medium

Creates or modifies reading stack entries reversibly without data deletion or irreversible side effects.

From the tool's definition Put something in the reading stack, or change what state it is in.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs reading_stack_add safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Metis Public Health, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For reading_stack_add, this is the rule to start with:

reading_stack_add Rate-limited

reading_stack_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.

View as policy code

policy.json

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

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Metis Public Health, apply this rule, and every reading_stack_add call is checked against it from then on.

FAQ

Questions about reading_stack_add

What does the reading_stack_add tool do? +

Put something in the reading stack, or change what state it is in. 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 reading_stack_add? +

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

What risk level is reading_stack_add? +

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

Can I rate-limit reading_stack_add? +

Yes. Add a rate_limit block to the reading_stack_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.

How do I block reading_stack_add completely? +

Set action: deny in the PolicyLayer policy for reading_stack_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.

What MCP server provides reading_stack_add? +

reading_stack_add 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.

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