Get detailed documentation for a specific tool Returns complete documentation including JSON schema, multiple examples, and full parameter details. Args: tool_name: Name of the tool to get documentation for ctx: FastMCP Context (automatically injected) Returns: Detailed tool documentation with JS...
AI agents call how_to_use_forgetful_tool to retrieve information from Forgetful without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a pure read operation that retrieves documentation. It does not create, modify, delete, execute code, or move money. The only potential concern is information disclosure if sensitive documentation is exposed, but the blast radius of retrieving documentation is low.
From the tool's definition Tool description states it 'Returns complete documentation' and 'Get detailed documentation for a specific tool' — these are query/retrieval operations with no side effects.
Documented attack patterns abuse exactly the kind of access how_to_use_forgetful_tool gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Forgetful, and nothing reaches the server without passing your rules. This is the rule we recommend for how_to_use_forgetful_tool:
{
"version": "1",
"default": "deny",
"tools": {
"how_to_use_forgetful_tool": {}
}
}how_to_use_forgetful_tool is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get detailed documentation for a specific tool Returns complete documentation including JSON schema, multiple examples, and full parameter details. Args: tool_name: Name of the tool to get documentation for ctx: FastMCP Context (automatically injected) Returns: Detailed tool documentation with JSON schema. It is categorised as a Read tool in the Forgetful MCP Server, which means it retrieves data without modifying state.
Register the Forgetful MCP server in PolicyLayer and add a rule for how_to_use_forgetful_tool: 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 Forgetful. Nothing to install.
how_to_use_forgetful_tool is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the how_to_use_forgetful_tool 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.
Set action: deny in the PolicyLayer policy for how_to_use_forgetful_tool. 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.
how_to_use_forgetful_tool is provided by the Forgetful MCP server (scottrbk/forgetful). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 59 Forgetful tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
59 Forgetful tools catalogued and risk-classified — across an index of 42,500+ MCP servers.