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stl_rt_wire

Read-onlyIdempotent

Generate a raw protobuf wire-format dump of a realtime transit snapshot, showing field numbers, wire types, lengths, and nesting paths. Use it to validate a hand-written decoder against ground truth.

Instructions

Raw protobuf wire-format dump of a realtime snapshot: field number, wire type, length, bytes and nesting, with the named path for each numeric path.

This is the ground-truth artifact for validating a hand-written decoder. Point the Kotlin implementation at the same snapshot and compare trees.

Args: depth: how deep to recurse into submessages. max_entities: how many feed entities to dump (keeps output bounded).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
depthNo
entityNotrip_updates
snapshotNo
max_entitiesNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4.1/5.0
Behavior5/5

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

The annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false. The description's reference to a 'dump' and 'validate' aligns with these hints, and no contradictory side effects are mentioned.

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

Conciseness4/5

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

The description is concise and front-loads the primary purpose. However, the 'Args' section is incomplete, which slightly detracts from the structural clarity.

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?

An output schema exists, so return-value details are not needed. The description provides a use case but omits explanations for 'entity' and 'snapshot', and does not mention how a snapshot is sourced, leaving some contextual gaps.

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 schema has 0% description coverage, and the description only explains two of the four parameters ('depth' and 'max_entities'). The meaning of 'entity' and 'snapshot' is left unspecified, leaving a significant gap in parameter understanding.

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?

The description clearly states the tool dumps raw protobuf wire-format data, including field numbers, wire types, lengths, bytes, and nesting. It distinguishes itself from siblings like stl_rt_decode by emphasizing the raw, ground-truth nature and its use for validating a decoder.

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 description provides a concrete use case: 'Point the Kotlin implementation at the same snapshot and compare trees.' It does not explicitly differentiate from all sibling tools, but the stated validation purpose makes when to use it clear enough.

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