Skip to main content
Glama
Sign In
sleuths-mcp

sleuths-mcp

by threshbyte
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

Analyze Thread Dump

analyze_thread_dump

Parse a JVM thread dump to extract thread counts, state distribution, deadlocks, hot locks, and top frames for structured diagnostics.

Instructions

Parse a jstack / jcmd Thread.print thread dump text and return: total thread count, state distribution, deadlocked threads, hot locks, top frames.

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": {
      "dump": "<dump>"
    },
    "name": "analyze_thread_dump"
  }
}

Input Schema

NameRequiredDescriptionDefault
dumpYesThe full thread dump text (jstack output).

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4/5.0
Behavior4/5

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

With no annotations, the description carries the burden and does well by specifying accepted dump formats and enumerating returned analysis fields such as deadlocks, hot locks, and top frames. It does not explicitly state that the operation is read-only or explain error handling, but the 'parse and return' framing makes the non-mutating behavior clear.

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?

It is a single front-loaded sentence that states the input and enumerates the outputs without any unnecessary text. Every phrase contributes to understanding what the tool does.

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?

Since there is no output schema, the description appropriately names the returned analysis categories. It is nearly complete for a one-parameter parser, though it could specify details such as how many 'top frames' are returned or how multiple dumps are handled.

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 coverage is 100% for the single required 'dump' parameter, so the baseline is 3. The description adds limited value by mentioning jstack and jcmd Thread.print as accepted sources, but it does not add format constraints or handling details beyond the schema.

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 uses a specific verb ('Parse') and resource ('jstack / jcmd Thread.print thread dump text'), and it enumerates the analysis outputs. An agent can distinguish this from sibling log analyzers because the resource is explicitly a thread dump, not an exception log, GC log, or heap histogram.

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

Usage Guidelines3/5

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

The intended use is implied by the input format: call it when you have jstack or jcmd Thread.print output. However, the description does not state when to prefer this over sibling tools or any exclusions, so guidance is minimal.

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

Deploy Server

Other Tools