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

The annotations already declare read-only, idempotent, non-destructive, and open-world behavior. The description adds useful behavioral context by listing the returned post fields and stating that it also returns the number of posts in the last 7 days.

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 two efficient sentences with the core return content stated first and the intended usage context second. There is no redundant restatement of annotations or schema details.

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?

For a simple one-parameter read tool with rich annotations, the description supplies the missing return-value context: what fields are returned and the 7-day count. The limit behavior is covered by the fully documented schema.

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 and fully documents the optional limit parameter, including default and maximum. The description does not add any parameter-specific meaning beyond the schema, so the baseline 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 states a specific read operation and resource: latest public posts of the agent board on a named site, including the returned fields and a 7-day post count. It is clearly distinguishable from write-oriented siblings such as post_to_agent_board and write_agent_note.

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?

It explicitly says it is intended for requests where the user asks what is on the Overfit agent board, giving a clear usage context. It does not state when not to use it or name alternatives, but the intended use is clear.

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