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

With no annotations provided, the description carries the full burden of behavioral disclosure. It reveals that the action is a retry and that it is free, but it does not disclose potential side effects, whether the job must be in a specific state, or what happens on success or failure. For a mutation tool, this is insufficient context.

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 short sentence, which is concise but at the expense of necessary detail. It is not padded, but it is under-specified; it fails to include any elaboration that would make it a useful, self-contained guide. This is closer to an under-specified tagline than a proper tool description.

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 one parameter, no output schema, and no annotations, the description is minimal. It does not explain what the tool returns, what 'failed paid job' implies, or any prerequisites. An agent calling this tool would have only a vague idea of its behavior, so it is not complete enough for confident invocation.

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 description does not mention the job_id parameter at all. Since schema description coverage is 0%, the description should compensate by explaining what job_id refers to, but it does not. The agent gets no additional meaning beyond the schema's type definition.

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 a specific verb ('retry') and resource ('failed paid job'), and adds the qualifier 'for free.' This distinguishes it from siblings like check_solana_token_risk, check_solana_transaction, and get_job_result, which are all read-oriented. However, it lacks detail on what 'retry' actually does operationally, so it's not a perfect 5.

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 on when to use this tool versus alternatives. The description does not mention any preconditions (e.g., job must be in a failed state), nor does it explain why one might choose this over get_job_result or the check tools. The agent is left to infer the use case from the name and one-line description.

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