rootcause-mcp

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rc_get_fishbone

Retrieve the complete Fishbone diagram for a root cause analysis session, returning all categories and causes in a structured format to support clinical incident analysis and medical education.

Instructions

Get the complete Fishbone diagram for a session. Returns all categories and causes in structured format.

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": {
      "session_id": "<session_id>"
    },
    "name": "rc_get_fishbone"
  }
}

Input Schema

Name	Required	Description	Default
`session_id`	Yes	The session ID

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.1.0May 26, 2026

TDQS

B3.3/5.0

Behavior2/5

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

No annotations exist, and the description only indicates it returns the diagram. It does not disclose whether the operation is read-only, behavior on invalid session IDs, or any side effects. The 'get' prefix implies idempotency but is not explicitly stated.

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?

Two sentences efficiently convey purpose and output. Every word is necessary with no fluff or redundancy.

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?

For a simple getter with one parameter and no output schema, the description is minimally adequate. It lacks details on output structure, error handling, and how it differs from similar retrieval tools among 20+ siblings.

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?

There is one parameter (session_id) with 100% schema coverage. The description adds no additional meaning beyond the schema's 'The session ID' – no format, examples, or constraints. Baseline 3 applies.

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 retrieves the complete Fishbone diagram for a session, returning all categories and causes in a structured format. It uses specific verbs and resource naming, and implicitly distinguishes from export or other retrieval tools like rc_get_why_tree.

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 on when to use this tool versus alternatives such as rc_get_session or rc_get_why_tree. The description does not provide any exclusions, prerequisites, or context for selection.

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