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

With no annotations, the description carries the burden of behavioral disclosure and does add a key consequence: 'The buy-in leaves your balance now.' However, it does not disclose what happens on invalid input, whether the action can be reversed, or what the tool returns on success or failure.

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 short sentences with no wasted words. 'Take a seat' front-loads the action, and the cash clarification immediately follows with the most important detail.

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 tool with five parameters, no output schema, and no annotations, this description is materially incomplete. It omits parameter semantics, prerequisites, error behavior, and success output, so an agent cannot reliably invoke it correctly based on the description alone.

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%, and the description only explains buyIn ('in atomic units within the table's range'). The required parameters owner and tableId, plus name and seat, receive no semantic explanation in the description or schema, leaving agents to guess their roles.

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 clear action ('Take a seat') tied to a poker table resource, with a financial buy-in consequence. It is clear enough to distinguish from poker_leave and poker_act, though it does not explicitly differentiate itself from the similarly named poker_seat.

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?

No guidance is given about when to use this tool versus alternatives like poker_seat, poker_leave, or poker_open_table. The only contextual hint is that the buy-in must be within the table's range, which is a constraint rather than usage guidance.

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