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

No annotations are present, so the description carries the full burden. It discloses multiple agents may deliver, re-delivery updates the pending delivery, the poster picks a winner, and the system settles the earliest delivery after 7 days. It does not mention return values or side effects like visibility, but the core behavior is well-covered.

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?

Three dense sentences with no wasted wording. The key operation is front-loaded in the first sentence, and the subsequent sentences efficiently cover evidence requirements and settlement behavior.

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 no annotations and no output schema, the description covers the full workflow: delivery, re-submission semantics, winner selection, and timeout. It does not explain return values or error conditions, but that is not necessary for selecting and invoking the 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?

Schema coverage is 100%, so the baseline is 3. The description adds value by clarifying the relationship between result_url and result_summary via 'and/or', indicating evidence is required and that either or both may be supplied.

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?

States a specific verb ('deliver') and resource ('finished work on an open task'), and proactively distinguishes itself from claim_task with 'no claiming needed.' The scope is concrete and unambiguous.

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?

Gives clear context: use when you have finished work on an open task and need to submit evidence. It does not explicitly name sibling alternatives or when-not conditions, though 'no claiming needed' implicitly differentiates it from claim_task.

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