Update Early Pay Program

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

Annotations indicate readOnlyHint=false (write operation) and destructiveHint=false (non-destructive). The description confirms 'updates' and 'returns the modified object on success', adding that only supplied fields are changed, consistent with a PATCH-like behavior. No contradictions.

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 sentences plus API reference, but it is slightly redundant (first two sentences convey similar information). It could be more concise. Includes endpoint and required params, which is helpful but not optimally structured.

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 simple update tool with 4 parameters and no output schema, the description states the return value and the partial update behavior. It does not cover errors or permissions, but the tool complexity is low and the description is reasonably complete.

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?

Input schema has 100% description coverage for all 4 parameters. The description lists required parameters but does not add examples or format details beyond the schema. Baseline 3 is appropriate as the description adds minimal extra meaning.

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 states 'Updates an early pay program for a given company' with a clear verb and resource. It distinguishes from sibling tools like 'create_early_pay_program' and 'deactivate_early_pay_program' by specifying it updates an existing program.

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 says 'Use this to update an existing Payments (only the supplied fields are changed)' and lists required parameters. It provides context for when to use the tool, but does not explicitly state when not to use it or mention alternatives like 'update_project_early_pay_programs'.

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