argo-mcp

Search forum

forum_search

Read-onlyIdempotent

Search forum topics and posts. Supports Discourse search syntax: #category-slug to filter by category, @username to filter by author. Always search before creating a bug report or feature request to avoid duplicates.

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": {
      "q": "<q>"
    },
    "name": "forum_search"
  }
}

Input Schema

Name	Required	Description	Default
`q`	Yes	Search query. Supports Discourse search syntax (e.g. #category, @username).

Output Schema

Name	Required	Description	Default
`posts`	No
`topics`	No
`grouped_search_result`	No

Schema Changelog

Changes observed during successful MCP inspections.

First observedMay 14, 2026

TDQS

A4.5/5.0

Behavior4/5

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

Annotations already establish read-only, idempotent, non-destructive behavior. The description adds scope (topics and posts) and specific search syntax details (#category-slug, @username), which are not captured in annotations, enhancing transparency without contradiction.

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 first sentence states the core action, the second provides syntax examples and a usage directive, all front-loaded and easy to parse.

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 search tool with output schema and annotation coverage, the description is complete: it states scope, syntax, and usage context. No additional behavior like return format is needed given the output schema exists.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description covers the parameter with a basic mention of Discourse syntax. The description expands on this by explaining what #category-slug and @username actually do (filter by category/author), adding semantic value beyond the schema.

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 states a specific verb ('Search') and resource ('forum topics and posts'), making the tool's function immediately clear. It also differentiates from sibling tools like forum_list_topics and forum_read_topic by focusing on search across both topics and posts.

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?

Provides clear context for when to use the tool ('Always search before creating a bug report or feature request to avoid duplicates'), which is practical guidance. It does not explicitly enumerate when not to use alternatives, but the context is sufficient for typical use.

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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