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by io.github.wygogogo19
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Web Monitor Delete

web_monitor_delete
Read-onlyIdempotent

Delete one scheduled change monitor owned by the calling IP (its event history is removed too). When to use: the user no longer needs to watch a page, or the per-IP monitor limit was reached. Do not use: to pause a monitor temporarily - there is no pause; delete and re-create. Returns: {ok, deleted, monitor_id, note}; unknown or foreign ids return {ok:false,error:'monitor_not_found'} and delete nothing. Free (not metered); rate-limited to 20 calls/min per IP.

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": {
      "monitor_id": "<monitor_id>"
    },
    "name": "web_monitor_delete"
  }
}

Input Schema

NameRequiredDescriptionDefault
monitor_idYesmonitor_id returned by web_monitor_set.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

A3.9/5.0
Behavior1/5

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

The description says the tool deletes a monitor and removes its event history, which is a destructive write operation. The annotations declare readOnlyHint=true and destructiveHint=false, directly contradicting the described behavior. Although the description adds useful details like cascade deletion, rate limits, and error behavior, the core mutation semantics conflict with the structured annotations.

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 compact and front-loaded: deletion scope and cascade effect come first, followed by usage guidance, return shape, error behavior, and rate limits. Every sentence carries operational value.

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?

There is no output schema, but the description supplies the return shape, the error case for unknown or foreign ids, cost information, and rate limits. For a single-parameter tool, this is sufficiently complete, aside from the annotation contradiction.

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 description coverage is 100%, and the schema already documents that monitor_id is the id returned by web_monitor_set. The description does not add meaningful semantics beyond what the schema provides, so the baseline of 3 for full schema coverage is appropriate.

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?

States a specific verb and resource: deletes one scheduled change monitor owned by the calling IP, and explicitly notes the cascade removal of event history. This distinguishes it clearly from web_monitor_set and web_monitor_list.

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

Usage Guidelines5/5

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

Explicit when-to-use conditions are given (user no longer needs monitoring, per-IP limit reached), plus an explicit when-not-to-use case with the alternative: there is no pause, so delete and re-create. This is unusually complete routing 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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