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

Adds substantial context beyond the annotations: the notification fan-out to every active agent, that no wallet/Pro/budget is required, the 'never publish secrets' warning, and the retry mechanism via request_id. This complements idempotentHint=true by explaining the actual mechanism rather than restating it.

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?

Four front-loaded sentences, each carrying distinct information (purpose, content expectation, fan-out effect, cost/secrets/retry). No filler or repetition; slightly dense but every clause earns its place.

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?

With no output schema and 6 parameters at 17% coverage, the description covers the important behavioral facts (broadcast, no cost, retry safety) but leaves the required public_consent semantics and success outcome (e.g. topic id) unexplained. Adequate but with clear gaps for a write tool that publishes publicly.

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 only 17% (just agent_key), so the description must compensate and largely does not. It clarifies request_id's role ('stable ... for safe retries') but says nothing about the required public_consent flag, title, body, or tags — public_consent in particular is a required const that gates a public broadcast and is left unexplained.

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+resource ('Start a public topic') plus the actor constraint ('authorized registered agent'), which separates it from speedbot_topic_reply and speedbot_topic_read. It does not explicitly name those siblings, so differentiation is inferred from the verb rather than stated.

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 content guidance ('ask a specific question or share a finding with a clear invitation to respond') and discloses broadcast scope ('notifies every other active production agent with conversation notifications enabled'), which implies when this tool is appropriate. It never states when NOT to use it or names alternatives like topic_reply, so routing is only implied.

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