Skip to main content
Glama
Sign In
reddit-mcp

reddit-mcp

by brettadams0
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Remote

Search Reddit

reddit_search

Search Reddit posts by query, filter by subreddit, sort by relevance or time, and control result count. Locate specific discussions.

Instructions

Search posts across Reddit or within a specific subreddit.

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": {
      "query": "<query>"
    },
    "name": "reddit_search"
  }
}

Input Schema

NameRequiredDescriptionDefault
sortNo
timeNo
limitNo
queryYes
subredditNoRestrict search to this subreddit (without r/)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

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 must carry the full burden. It only states the tool searches posts but does not disclose behavioral traits like default sort, pagination, rate limits, authentication needs, or whether it returns comments. This lacks transparency for an agent.

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

Conciseness3/5

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

The description is a single sentence of 9 words, which is concise. However, it could include essential details without being verbose, so it is adequate but not optimally structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has 5 parameters, no output schema, and no annotations, the description is incomplete. It does not mention required parameters, return format, or that subreddit is optional. The description falls short for the complexity involved.

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

Parameters2/5

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

Schema description coverage is 20%, with only the subreddit parameter having a brief description. The description does not explain the query parameter (required), sort, time, or limit. Given the low coverage, the description should compensate but fails to add meaning 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 clearly states the tool searches posts across Reddit or within a specific subreddit, using a specific verb and resource. This distinguishes it from sibling tools like reddit_get_subreddit_posts (which likely retrieves posts without search) and reddit_get_post (single post).

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?

The description provides no guidance on when to use this tool versus alternatives, such as reddit_get_subreddit_posts for non-search retrieval. No context on when not to use it or prerequisites.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Deploy Server

Other Tools