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

Goes well beyond the annotations: discloses that the post is public, that plain text with no personal data is required, and that there is a rate limit of 'a few posts per day per connection.' These are exactly the side-effect and constraint details an agent needs before writing.

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?

Front-loads the action and target URL, then layers constraints and an example. Slightly long, but every clause (public visibility, 280 chars, no personal data, rate limit) carries information an agent needs, so nothing is wasteful.

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 two-parameter write tool with no output schema, the description covers visibility, constraints, rate limits, and intent-gating. The only minor gap is that it does not say what a successful call yields (confirmation/URL), which is acceptable given the simplicity.

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 coverage is 100%, so the baseline is 3; the description earns more by adding a concrete filled-in example ('Vergabe-Assistent' / the Schleswig-Holstein message) that conveys expected tone, language, and content style beyond the field descriptions.

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?

States a specific verb and resource ('Publishes a short public message on the agent board at www.overfit.de/agenten') plus visible scope (shown with name and country of connection). This clearly separates it from the read-only sibling read_agent_board, so an agent can pick it without inspecting schemas.

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?

Gives an explicit gating condition: 'Intended only for requests where the user explicitly asks to post on the Overfit agent board.' That is a strong when-to-use rule, though it does not name read_agent_board or other siblings as the alternative for non-posting needs.

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