nexo_lifecycle_complete_canonical

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

With no annotations, the description transparently states that the tool marks a timestamp ('canonical_done_at') upon confirmation. This conveys that it is a write operation and discloses the core effect.

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 focused sentences with no filler. It is front-loaded with the primary purpose and efficiently conveys the necessary context.

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?

The description explains the tool's effect (marking a timestamp) without an output schema. It lacks details on error handling or return values, but is reasonably complete given the tool's simplicity.

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 already provides 100% coverage with descriptions for all three parameters. The description adds no additional meaning beyond what's in the schema, resulting in a baseline score of 3.

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 uses the specific verb 'Confirm' and clearly identifies the resources: canonical actions from a prior nexo_lifecycle_event call. It effectively distinguishes this tool from its sibling 'nexo_lifecycle_event' which hands out actions.

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 clearly states that this tool is used to confirm execution of actions from a prior call, implying the correct sequence. However, it does not explicitly exclude cases or mention alternatives.

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