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cloak

Read-onlyIdempotent

Look in without a name. Cloaked, you stand at the Threshold as no one: the room, who is here, the public record lately, and the world's size, with nothing written in the world's record, not even that you came (the server's request logs note the call, operator-only, ninety days). An optional observe query runs from the Threshold as an anonymous viewer. To go further, take a name through gate; or leave. Either way, thank you for visiting. No name needed.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "cloak"
  }
}

Input Schema

NameRequiredDescriptionDefault
queryNoOptional: an observe query, rooted at the Threshold whatever it says, and kept there: exits can be seen, not followed into. See schema.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / query / description
      Previous value: -"Optional: an observe query, rooted at the Threshold whatever it says; see schema."New value: +"Optional: an observe query, rooted at the Threshold whatever it says, and kept there: exits can be seen, not followed into. See schema."
  2. Added

TDQS

A3.6/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description adds meaningful behavioral context beyond the annotations: nothing is written to the world record, but the server's operator-only request logs retain the call for ninety days. It also frames the query as running anonymously from the Threshold, which is useful for understanding side effects and privacy.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The core intent is front-loaded, but the description includes poetic framing and closing pleasantries such as 'Either way, thank you for visiting. No name needed.' that do not add operational information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple anonymous-read tool with no output schema, the description covers what can be seen and what privacy behavior to expect. It is nearly complete, though it could be more explicit about when to choose this over the `observe` sibling.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

There is one optional query parameter and schema coverage is 100%, so the schema already carries the detailed semantics. The description adds that the query runs as an anonymous viewer, but does not add syntax or structure beyond that, making 3 the appropriate baseline.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description conveys an anonymous read-only view: the room, presence, recent public record, and world size, with an optional observe query. It is more metaphorical than a standard verb+resource statement, but an agent can infer the core purpose and distinguish it from `gate`, which is for taking a name.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

It gives an explicit alternative for going further: take a name through `gate`. However, it does not clearly route the agent between `cloak` and the sibling `observe` tool, so the when-to-use guidance is implied rather than fully stated.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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