get_competitor_posts

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

Annotations already mark the tool as readOnlyHint=true, so the safety profile is covered. The description adds a valuable behavioral detail: posts from both own accounts are excluded. However, it does not clarify how the 'sort' parameter influences the 'Recent posts' wording, or how the optional account parameter behaves, which limits transparency beyond the annotation.

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 with no filler, and the core action and scope are front-loaded. The trailing purpose clause 'what the rest of the market is doing' is useful context rather than waste. A bit more operational detail would be welcome, but the structure is efficient.

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?

While the output schema exists and the read-only annotation covers side effects, the description leaves out essential invocation guidance for a 4-parameter tool with 0% schema coverage. It does not distinguish when to use this tool vs closely related siblings, and the ambiguous account parameter is undocumented. An agent could call it correctly for the simplest case but not confidently handle optional parameters or edge scenarios.

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?

Schema description coverage is 0%, so the description must compensate, but it only addresses the subreddit concept and the exclusion of own accounts. It does not explain sort behavior, the account parameter, or how limit applies. The plural 'both of our own accounts' also conflicts with the singular optional 'account' property, leaving the agent uncertain about what that parameter controls.

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 names a specific verb and resource — retrieving recent posts in a target subreddit — and adds a clear scope: it excludes the user's own accounts, reframing the tool as a competitor-monitoring view. This distinguishes it from siblings like get_my_posts and get_subreddit_feed without needing those tools to be named. The phrase 'what the rest of the market is doing' reinforces the intended purpose.

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 context implies use for competitive/market monitoring in a subreddit, but there is no explicit statement of when to choose this over get_subreddit_feed or get_post_details. It does not mention exclusions or alternatives, so an agent is left to infer the intended use case.

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