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trmnl_operation_schema

Read-onlyIdempotent

Inspect an operation's verified request schema and method before calling it to validate inputs and prevent incorrect requests.

Instructions

Inspect the full verified request schema and method for an operation before using it.

Input Schema

NameRequiredDescriptionDefault
operationIdYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.2.1

TDQS

A3.5/5.0
Behavior3/5

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

Annotations already establish that this is a read-only, idempotent, non-destructive, closed-world operation, so the description does not need to repeat safety behavior. The description adds that it returns the 'full verified request schema and method', but it does not describe the response shape, failure modes, or how operationId is resolved.

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?

The description is a single efficient sentence with no wasted wording. The core purpose and the 'before using it' timing are front-loaded.

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

Completeness3/5

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

No output schema exists, so the description should carry more of the return-value and parameter guidance burden. It names the returned artifacts but leaves operationId sourcing and response details insufficiently specified for fully confident invocation.

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

Parameters2/5

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

The single required parameter, operationId, has 0% schema description coverage, and the description does not explain its format, source, or whether it is an operation name or identifier. The phrase 'for an operation' implies what the parameter refers to, but leaves the key invocation detail undocumented.

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 uses a specific verb, 'Inspect', and a specific resource, 'full verified request schema and method for an operation', making the meta-tool's role clear. It does not explicitly contrast itself with sibling guide or documentation tools, so it falls short of the clearest possible differentiation.

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?

The phrase 'before using it' gives clear timing and context: inspect an operation's schema before invoking that operation. It does not name alternatives or exclusions such as trmnl_docs_read or trmnl_framework_guide, but the intended usage condition is still clear.

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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