list_writing_decisions

THE RISK

Low Risk

Why list_writing_decisions needs a policy

This tool performs a read-only query operation to retrieve writing decisions based on filter criteria (file, type, date). It has no side effects, does not modify or delete data, and does not execute external code. It fits the 'Read' category as a data retrieval function similar to search or list operations.

From the tool's definition Tool name 'list_writing_decisions' and description 'List writing decisions by file, type, or date range' indicate a retrieval operation that queries and returns stored writing decisions without modifying data.

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

POLICY

How to control list_writing_decisions

PolicyLayer is an MCP gateway — it sits between your AI agents and Claude Writer's Aid MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for list_writing_decisions:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_writing_decisions": {}
  }
}

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

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

CAP THIS TOOL →

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EXPLORE

Related tools and policies

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All 34 Claude Writer's Aid MCP tools →

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_writing_decisions

What does the list_writing_decisions tool do? +

List writing decisions by file, type, or date range. It is categorised as a Read tool in the Claude Writer's Aid MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_writing_decisions? +

Register the Claude Writer's Aid MCP server in PolicyLayer and add a rule for list_writing_decisions: 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 Claude Writer's Aid MCP. Nothing to install.

What risk level is list_writing_decisions? +

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

Can I rate-limit list_writing_decisions? +

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

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

list_writing_decisions is provided by the Claude Writer's Aid MCP server (xiaolai/claude-writers-aid-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Claude Writer's Aid MCP tool call.

Start from Claude Writer's Aid MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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