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Protocol Roles

protocol_roles

Retrieve channel roles and options schema for a specified bus protocol to configure decoder settings accurately.

Instructions

Channel roles and options_schema for a bus decoder.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
protocolYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.3.0

TDQS

C2.4/5.0
Behavior2/5

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

No annotations are provided, so the description bears full responsibility for behavioral disclosure. It only states the subject matter and does not say whether the operation is read-only, whether it mutates state, or what side effects or errors are possible.

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 description is one short sentence and easy to scan, which is good, but it is under-specified for a tool definition. It is concise by omission rather than by dense, deliberate content.

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

Completeness2/5

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

For a tool with one required parameter and an output schema, the description is too thin to support confident selection and invocation. It omits usage context, parameter semantics, and any behavioral guarantees, leaving the agent to guess.

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?

With 0% schema description coverage, the description should explain the 'protocol' parameter. It only implies that protocol identifies a bus decoder, without stating valid values, format, or examples.

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

Purpose3/5

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

The description names specific content ('channel roles and options_schema') and the resource ('bus decoder'), so an agent can roughly identify what the tool covers. However, it lacks a verb that states the operation (get/return/configure), making it read more as a label than a purpose. It doesn't explicitly differentiate from siblings like protocol_list or bus_decode.

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

Usage Guidelines2/5

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

No guidance is given about when to use this tool over sibling tools such as protocol_list or bus_decode. There are no context signals about prerequisites, alternatives, or scenarios where this tool is the right choice.

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