reddit_fast_search

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 mentions 'Quickly search' and 'Best for general information gathering,' which hints at performance and use case but lacks details on rate limits, authentication needs, error handling, or what the output looks like (e.g., format, pagination). For a search tool with no annotations, this is a significant gap in transparency.

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 concise and front-loaded, consisting of two sentences that directly state the tool's purpose and usage context. Every sentence earns its place by providing essential information without unnecessary details, making it efficient and easy to parse.

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 the tool's moderate complexity (4 parameters, no output schema, no annotations), the description is somewhat complete but has gaps. It covers the basic purpose and usage but lacks details on behavioral traits, output format, and differentiation from siblings. Without annotations or an output schema, the description should do more to compensate, but it falls short of being fully comprehensive.

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 has 100% description coverage, providing clear details for all parameters (query, subreddits, limit, sort). The description adds minimal value beyond the schema, only implying a general search scope without specifying parameter interactions or constraints. With high schema coverage, the baseline score of 3 is appropriate as the description doesn't enhance parameter understanding significantly.

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 clearly states the tool's purpose: 'Quickly search for Reddit posts, comments, or users.' It specifies the verb ('search') and resource ('Reddit posts, comments, or users'), making it easy to understand what the tool does. However, it doesn't explicitly differentiate from its sibling tool 'reddit_lead_monitor', which might have overlapping or distinct functionality.

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 some usage context with 'Best for general information gathering,' which implies when to use this tool. However, it doesn't offer explicit guidance on when not to use it or mention alternatives, such as how it differs from 'reddit_lead_monitor'. This leaves room for ambiguity in tool selection.

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