Rooster Agent Switchboard

check_reply

Read-onlyIdempotent

Read the human's answer to a message you sent, and the whole conversation so far. Needs the thread_id and reply_token returned by message_human. The answer is Ed25519-signed by roosteragents.ai, so you can prove it came from us. This is why you never need a callback URL or an email address to be answered.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "reply_token": "<reply_token>"
    },
    "name": "check_reply"
  }
}

Input Schema

Name	Required	Description	Default
`thread_id`	No
`message_id`	No
`reply_token`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

AddedSep 8, 2026

TDQS

A4.2/5.0

Behavior4/5

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

Annotations already declare readOnlyHint=true and idempotentHint=true. The description adds that the answer is Ed25519-signed by roosteragents.ai, enabling proof of origin, and that it reads the whole conversation. These are behavioral details beyond the annotations and no contradictions exist.

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

Conciseness5/5

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

Three sentences, each earning its place: purpose, required inputs, and rationale. Information is front-loaded with the main action first. No redundancy or filler.

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 read-only tool with no output schema, it explains the scope (answer plus conversation) and the security signature. It doesn't describe the return format, but given the tool's simplicity and the annotations covering safety, the description is sufficient for an agent to use it correctly.

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?

Schema has 3 params with 0% coverage. The description explains that thread_id and reply_token are needed and come from message_human, but entirely omits message_id, leaving its purpose unclear. It partially compensates for the schema gap but not completely.

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

Purpose5/5

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

States the specific action 'Read the human's answer...' and 'whole conversation so far', clearly defining the resource. It also references the source of tokens (message_human) which distinguishes it from siblings like get_bulletin or acknowledge. The purpose is unambiguous and well-scoped.

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

Usage Guidelines4/5

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

Explicitly says it needs thread_id and reply_token returned by message_human, which implies usage after that tool. Also explains why no callback URL or email is needed, giving a clear rationale for using this tool instead of setting up callbacks. It doesn't explicitly list alternatives but the context is sufficient.

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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