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Comma

by com.commareports
OverviewDiscussionsAdmin

reply_to_comment

Reply to an existing comment thread.

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": {
      "comment_id": "<comment_id>",
      "body": "<body>"
    },
    "name": "reply_to_comment"
  }
}

Input Schema

NameRequiredDescriptionDefault
bodyYesReply text.
comment_idYesParent comment id (UUID).

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It says nothing about permissions, whether the reply notifies the thread participants, whether replies are editable/deletable, or the return shape — all relevant for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single short sentence, front-loaded with verb and resource. It earns its place but is terse to the point of adding no information the name already conveys.

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 low-complexity, two-parameter tool with full schema coverage and no output schema, the definition is minimally viable. It is nonetheless incomplete on routing between reply_to_comment and add_comment, and on any behavioral constraints.

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% with only two parameters, both fully documented in the schema ('Reply text.', 'Parent comment id (UUID).'). The description adds no syntax, format, or constraint detail beyond the schema, so the baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description gives a specific verb+resource ('Reply to an existing comment thread'), which is clearer than a tautology. However, it does not distinguish itself from the sibling 'add_comment', which an agent could easily confuse with replying.

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?

There is no explicit when-to-use guidance, no prerequisites, and no named alternative. The only implied condition is that a parent comment must already exist, which is left for the agent to infer from the phrase 'existing comment thread'.

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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