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MailFixture

by com.mailfixture
OverviewDiscussionsAdmin

delete_hook

Delete a capture hook and all its captured requests. The ingest URL answers 404 afterwards. Irreversible.

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": {
      "hook_id": "<hook_id>"
    },
    "name": "delete_hook"
  }
}

Input Schema

NameRequiredDescriptionDefault
hook_idYesHook id (uuid) from create_hook or list_hooks.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Added

TDQS

A4.1/5.0
Behavior4/5

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

No annotations provided, so the description carries full burden. It discloses irreversibility, deletion of captured requests, and resulting 404 behavior. This is adequate for a simple delete operation.

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 concise sentences with no filler. The main action is front-loaded, and key consequences (deletion of requests, 404, irreversibility) are immediately provided.

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

Completeness5/5

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

For a single-parameter tool with no output schema, the description fully covers the effect, outcomes, and permanence. No further detail is needed given the simplicity.

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% and describes the hook_id parameter sufficiently. The description adds no extra parameter information, meeting the baseline but not exceeding it.

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 deletes a capture hook and all its captured requests, distinguishing it from siblings like clear_hook (which likely clears requests but keeps the hook). It also notes the ingest URL returns 404, adding specificity.

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 description implies usage for permanent deletion but does not explicitly contrast with alternatives like clear_hook. It lacks when-to-use or when-not-to-use guidance.

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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