reddit_search

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

With no annotations provided, the description bears the full burden of disclosure, but it only states 'Search for posts' with no mention of behavioral traits like authentication needs, rate limits, whether it returns post metadata or full content, or how sorting/filtering work. The description adds no value beyond the schema.

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

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

The description is a single sentence, which makes it brief, but it is under-specified. It lacks critical details that should be included, so it does not earn its place as a complete summary. True conciseness would deliver maximum information in minimal words, but here it is merely short.

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

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

Given 5 parameters, no output schema, and no annotations, the description is far too minimal. It does not explain what the tool returns, how to use sort/limit/time_filter effectively, or any constraints. The description is incomplete for an agent to use correctly without additional context.

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

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

The input schema covers all 5 parameters with descriptions and defaults, achieving 100% schema coverage. The tool description adds no additional explanation of parameter meaning or usage, but the schema itself is sufficient. Hence baseline score of 3 is appropriate.

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

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

The description 'Search for posts within a subreddit' clearly states the action (search) and resource (posts), making the purpose easy to understand. However, it does not differentiate from sibling tools like reddit_listing, which might also list posts, so it misses a chance to clarify uniqueness.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

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 over alternatives (e.g., reddit_listing, reddit_read) or any situational context. There are no explicit when/when-not statements, leaving the agent to guess based solely on the tool name.

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