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

No annotations are provided, so the description carries the full burden. It does disclose the most important behavioral trait — the audience is public and location-scoped — but says nothing about whether speech is logged, rate-limited, or how failures are surfaced.

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?

Two short sentences with zero waste; the action and its audience are front-loaded so an agent can decide in one read.

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, non-destructive action with a fully documented schema and no output schema, purpose and audience are covered. However, in a sibling set containing emote, game_chat, and send_private_message, the description never clarifies which channel this is versus those, leaving a real disambiguation gap.

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 100%, so both the text and token parameters are already fully documented in the schema (including the 1000-char limit). The description only implies that text is the spoken content, adding no syntax or format detail beyond the schema.

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 gives a specific verb+resource (say something aloud) plus a crucial scope qualifier: 'everyone present at your location hears it.' That scope implicitly separates it from send_private_message and game_chat, though no sibling is named outright.

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?

Usage is implied through the broadcast semantics — use when you want to address everyone nearby rather than one recipient — but there is no explicit when/when-not statement and no named alternative such as send_private_message or emote.

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