Update Time And Material Timecard

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

Annotations already indicate a non-read-only, non-destructive mutation. The description adds 'only the supplied fields are changed' (partial update) but does not discuss auth needs, rate limits, or other side effects. With annotations present, the added value is marginal.

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 relatively short but includes redundant mention of 'Field Productivity records' and technical details like endpoint path, which may not aid agent selection. Front-loaded verb but somewhat verbose for its content.

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 8 parameters and no output schema, the description adequately states purpose and return value. However, it introduces ambiguity by equating 'Time And Material Timecard' with 'Field Productivity records', potentially confusing the agent.

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% with detailed descriptions for all 8 parameters. The description repeats required params id and project_id, adding no meaning beyond schema. Baseline 3 is appropriate.

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 'Update a specified Time And Material Timecard' and specifies it returns the modified object. It distinguishes itself from sibling CRUD tools like create, list, bulk update by focusing on single update, but does not explicitly name alternatives.

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?

It provides basic guidance: 'Use this to update an existing Field Productivity records (only the supplied fields are changed).' It lists required parameters but does not include when-not-to-use or explicit alternatives like create for new records.

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