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ts-diagnostics-mcp

ts-diagnostics-mcp

by GNARC0TICS
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

get_diagnostic_count

Retrieve summary counts of TypeScript errors, warnings, and suggestions without fetching full diagnostic details.

Instructions

Get summary counts of errors, warnings, and suggestions. Faster than getting full diagnostics.

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": "get_diagnostic_count"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4/5.0
Behavior2/5

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

No annotations are provided, so the description must carry the full burden of behavioral disclosure. It only mentions speed but does not explicitly state that the tool is read-only, non-destructive, or any other traits. For a query tool, this is a gap.

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 sentence of 13 words, highly concise, and front-loaded with the key action and resource.

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?

Given zero parameters and no output schema, the description covers the main purpose and speed advantage. However, it could be more complete by indicating the output format (e.g., counts per severity). Still, it is adequate for a low-complexity tool.

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

Parameters4/5

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

There are no parameters in the input schema, and schema description coverage is 100% (trivially). With 0 parameters, the baseline is 4, and the description does not need to add parameter info.

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 verb 'Get summary counts' and the resource 'errors, warnings, and suggestions', and distinguishes itself from sibling 'get_all_diagnostics' by noting it's faster.

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 context for when to use this tool ('Faster than getting full diagnostics') but does not explicitly state when not to use it or mention alternatives beyond the implied comparison with get_all_diagnostics.

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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