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

Annotations already cover read-only, idempotent, and non-destructive behavior, lowering the burden. The description adds that the result is deterministic and signed, which is useful context beyond the annotations, but it does not clarify side effects, requirements, or output behavior beyond that.

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 compact sentence with no filler and the key behavioral trait (deterministic signed assessment) is front-loaded. It is concise, though the brevity comes at the cost of operational 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?

Even with annotations and an output schema, the description leaves the core question unanswered: what exactly is being checkpointed and assessed? With an unconstrained input schema and a long list of sibling evidence tools, an agent has too little information to select and call this tool correctly.

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 requires 'checkpoint' and allows additional properties, but neither the schema nor the description explains what a checkpoint is, what shape it should take, or what other inputs are accepted. The phrase 'supplied input' does not compensate for the absence of any parameter semantics.

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 phrase 'deterministic signed assessment over supplied input' indicates the tool evaluates input and produces a signed result, but it never states a specific action verb or what distinguishes this evidence tool from the many similar sibling evidence tools. It leans heavily on the name itself.

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?

There is no guidance about when to use this tool versus an alternative such as task_cancel_assurance, agent_task_handoff_receipt, or other evidence/assessment tools. No context, exclusions, or selection criteria are provided.

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