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Onplana

by io.github.Onplana
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edit_comment

DestructiveIdempotent

Edit a comment you authored. Only works on comments the calling agent created. Content must be 1-10000 chars. Use this to correct a previously posted status note or fix a typo.

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": {
      "commentId": "<commentId>",
      "content": "<content>"
    },
    "name": "edit_comment"
  }
}

Input Schema

NameRequiredDescriptionDefault
contentYesReplacement content, 1-10000 chars. Plain text is formatted as in create_comment: blank lines separate paragraphs, "- " and "1. " lines become lists.
commentIdYesId of the comment to edit.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / content / description
      Previous value: -"Replacement content, 1-10000 chars."New value: +"Replacement content, 1-10000 chars. Plain text is formatted as in create_comment: blank lines separate paragraphs, \"- \" and \"1. \" lines become lists."
  2. Added

TDQS

A4.2/5.0
Behavior4/5

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

Annotations already declare destructiveHint=true and idempotentHint=true, so the safety profile is covered. The description adds the ownership constraint ("only works on comments the calling agent created") and the 1-10000 char bound, both of which are behavioral facts not present in the annotations. It does not say what happens to the prior content or whether a failed ownership check errors, so it is not exhaustive.

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?

Three short sentences, zero filler, with the strongest constraint (you can only edit your own comments) placed early. Every sentence adds a distinct fact: capability, restriction, validation, and use case.

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?

For a two-parameter mutation with no output schema, the description covers capability, ownership restriction, length validation, and intent. It omits error behavior for non-owned comments and whether the edit supersedes prior content entirely, which are minor given idempotent/destructive annotations already signal overwrite semantics.

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 both parameters are fully documented there, including the formatting rules, so the schema carries the load. The description only repeats the same 1-10000 char bound and adds no new parameter-level meaning, which is the expected baseline.

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 opens with a specific verb+resource ("Edit a comment") and immediately scopes it to comments the calling agent authored, which separates it from create_comment and list_comments. An agent knows exactly which object class is touched without opening the schema.

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?

It gives positive usage contexts ("correct a previously posted status note or fix a typo"), which is clear guidance on when to reach for it. It stops short of naming an alternative for the excluded case (someone else's comment, or a comment that shouldn't be edited at all), so it is strong but not complete.

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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