coinbase_snapshot_state

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

No annotations are provided, so the description carries full burden. It discloses the nature of the data (in-memory ring-buffer state) and includes counts, last tick/trade, and recent events, implying a read-only operation. However, it does not clarify side effects, whether the stream must be active, or the behavior when the buffer is empty.

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 a single sentence of 20 words, front-loaded with the key purpose. Every word earns its place, and there is no redundancy.

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?

Given the tool's simplicity (one parameter, no output schema), the description adequately covers what it does and the key parameter shape. It mentions the nature of the return data (counts, last tick/trade, recent events). However, it lacks context about dependencies (e.g., needing an active stream) and the output format.

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 one parameter 'n' with no description (0% coverage). The description clarifies that 'n' controls the count of recent events, adding meaning beyond the raw schema. This is sufficient for a single parameter.

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 clearly states the verb ('Return'), the resource ('in-memory ring-buffer state'), and the context ('collected by coinbase_market_stream'). It specifies what is included (counts, last tick/trade, recent N events), which distinguishes it from sibling tools like coinbase_market_stream (which likely starts the stream) and coinbase_portfolio_snapshot (portfolio data).

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 explicit guidance on when to use this tool versus alternatives like coinbase_market_stream or coinbase_portfolio_snapshot. There is no mention of prerequisites (e.g., requiring the stream to be active) or when not to use it.

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