Get A2A Task Contract

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

The description is consistent with the annotation 'readOnlyHint: true' by using 'fetch'. However, it does not disclose additional behavioral traits such as error handling (e.g., what happens if the contract is not found) or any constraints beyond the identifier.

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 that is front-loaded with the action and resource. Every word is necessary, with no superfluous content or structure issues.

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 tool is simple with one parameter and has an output schema (presumably covering return values). The description adequately describes the core functionality, though it could be more complete by mentioning the meaning of 'published' or typical use cases.

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?

With schema coverage at 0%, the description adds minimal value: it mentions 'by identifier' but does not specify format, length, or examples for the 'contract_id' parameter. A simple type string with no description in the schema leaves the agent without guidance on valid values.

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 action ('fetch'), the specific resource ('published Paybond A2A task contract'), and the method ('by identifier'). It effectively distinguishes from the sibling tool 'paybond_list_a2a_task_contracts' which implies listing all contracts.

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 vs alternatives. The description implies fetching a single contract by ID, but does not provide exclusions or context for when to choose this over the list or other sibling tools.

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