Confirm prepared TCS action

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

The description adds behavioral context beyond the annotations by disclosing that the token is short-lived and single-use, implying the action will execute only once and the token will be consumed. It complements the destructiveHint (true) annotation without contradicting 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?

A single sentence, front-loaded with the primary verb and resource, containing no fluff. Every word contributes to understanding the tool's purpose and usage.

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 one-parameter tool with destructiveHint and no output schema, this description is largely complete. It covers what to supply (token) and the precondition (previewed action), though it could slightly benefit from mentioning where the token originates or what 'TCS' stands for, but such details are not critical.

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 schema only defines 'token' as a string with minLength 20. The description adds essential semantics: the token is short-lived, single-use, and tied to a previously previewed action. With 0% schema description coverage, this compensation makes the parameter's purpose clear.

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 specific verb ('Execute') and resource ('previously previewed action'), clearly differentiating this tool from siblings by requiring a token from a prior preview. It precisely identifies what the tool does and its unique scope.

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?

The description implies usage context: it should be used only when you have a short-lived, single-use token from a previous preview. It does not explicitly mention alternatives or when not to use it, but the condition 'previously previewed' provides clear guidance without excluding alternatives.

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