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Search Discourse topics

discourseTopicSearch
Read-onlyIdempotent

Find a visible forum topic to reply to. Requires an owned active account and current provider availability. Follow nextCursor until done, keeping the same connection and search fields.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
qYes
cursorNonextCursor from the previous page of this exact tool and input
connectionIdYesOwned connectionId returned by accountList

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / oneOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "ok": {
      -        "const": true,
      -        "type": "boolean"
      -      },
      -      "output": {
      -        "additionalProperties": false,
      -        "properties": {
      -          "output": {
      -            "additionalProperties": false,
      -            "properties": {
      -              "done": {
      -                "$ref": "#/$defs/__schema0"
      -              },
      -              "items": {
      -                "$ref": "#/$defs/__schema1"
      -              },
      -              "nextCursor": {
      -                "$ref": "#/$defs/__schema3"
      -              }
      -            },
      -            "required": [
      -              "done",
      -              "items"
      -            ],
      -            "type": "object"
      -          }
      -        },
      -        "required": [
      -          "output"
      -        ],
      -        "type": "object"
      -      },
      -      "toolName": {
      -        "const": "discourseTopicSearch",
      -        "type": "string"
      -      }
      -    },
      -    "required": [
      -      "ok",
      -      "output",
      -      "toolName"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "error": {
      -        "additionalProperties": false,
      -        "properties": {
      -          "code": {
      -            "enum": [
      -              "INVALID_INPUT",
      -              "FORBIDDEN",
      -              "NOT_FOUND",
      -              "CONFLICT",
      -              "FEATURE_DISABLED",
      -              "CONFIRMATION_REQUIRED",
      -              "CONFIRMATION_INVALID",
      -              "UPSTREAM_FAILED",
      -              "NEEDS_REVIEW",
      -              "INTERNAL"
      -            ],
      -            "type": "string"
      -          },
      -          "message": {
      -            "maxLength": 2048,
      -            "minLength": 1,
      -            "type": "string"
      -          },
      -          "retryable": {
      -            "type": "boolean"
      -          }
      -        },
      -        "required": [
      -          "code",
      -          "message",
      -          "retryable"
      -        ],
      -        "type": "object"
      -      },
      -      "ok": {
      -        "const": false,
      -        "type": "boolean"
      -      },
      -      "toolName": {
      -        "const": "discourseTopicSearch",
      -        "type": "string"
      -      }
      -    },
      -    "required": [
      -      "error",
      -      "ok",
      -      "toolName"
      -    ],
      -    "type": "object"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "ok": {
      +        "const": true,
      +        "type": "boolean"
      +      },
      +      "output": {
      +        "additionalProperties": false,
      +        "properties": {
      +          "output": {
      +            "additionalProperties": false,
      +            "properties": {
      +              "done": {
      +                "$ref": "#/$defs/__schema0"
      +              },
      +              "items": {
      +                "$ref": "#/$defs/__schema1"
      +              },
      +              "nextCursor": {
      +                "$ref": "#/$defs/__schema3"
      +              }
      +            },
      +            "required": [
      +              "done",
      +              "items"
      +            ],
      +            "type": "object"
      +          }
      +        },
      +        "required": [
      +          "output"
      +        ],
      +        "type": "object"
      +      },
      +      "toolName": {
      +        "const": "discourseTopicSearch",
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "ok",
      +      "output",
      +      "toolName"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "error": {
      +        "additionalProperties": false,
      +        "properties": {
      +          "code": {
      +            "enum": [
      +              "AI_SCHEDULING_LIMIT_REACHED",
      +              "AI_SCHEDULING_UNAVAILABLE",
      +              "INVALID_INPUT",
      +              "FORBIDDEN",
      +              "NOT_FOUND",
      +              "CONFLICT",
      +              "FEATURE_DISABLED",
      +              "CONFIRMATION_REQUIRED",
      +              "CONFIRMATION_INVALID",
      +              "UPSTREAM_FAILED",
      +              "NEEDS_REVIEW",
      +              "INTERNAL"
      +            ],
      +            "type": "string"
      +          },
      +          "message": {
      +            "maxLength": 2048,
      +            "minLength": 1,
      +            "type": "string"
      +          },
      +          "retryable": {
      +            "type": "boolean"
      +          }
      +        },
      +        "required": [
      +          "code",
      +          "message",
      +          "retryable"
      +        ],
      +        "type": "object"
      +      },
      +      "ok": {
      +        "const": false,
      +        "type": "boolean"
      +      },
      +      "toolName": {
      +        "const": "discourseTopicSearch",
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "error",
      +      "ok",
      +      "toolName"
      +    ],
      +    "type": "object"
      +  }
      +]
  2. First observed

TDQS

A3.6/5.0
Behavior4/5

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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is covered. The description adds genuinely useful behavioral context beyond that: the account/availability precondition and the rule that cursor pagination must keep the same connection and search fields.

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?

Three short sentences with the purpose front-loaded and no filler. Slightly terse given the missing q semantics, but nothing is wasted.

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?

An output schema exists so return values need no explanation, and annotations cover the safety profile. Still, the description never says what q matches (titles, content, tags) or what 'visible' means, leaving the core search behavior underspecified for an open-world search tool.

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 67%; the cursor and connectionId descriptions already exist in the schema, and the description largely restates them ('same connection and search fields'). The q parameter (the primary search input) has no description anywhere, so the description does not compensate for that gap.

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?

States a specific verb and resource ('Find a visible forum topic to reply to'), which is clearly distinguishable from the sibling list tools discourseCategoryList and discourseTagList. However, it never names those siblings or otherwise routes the agent among the Discourse tool family.

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?

It gives prerequisites ('Requires an owned active account and current provider availability') and pagination guidance ('Follow nextCursor until done'), but no explicit when-to-use versus alternatives such as discourseCategoryList for browsing rather than searching. Usage is implied rather than directed.

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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