process_recurring

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

Without annotations, the description transparently discloses the core behaviors: creating expense entries and updating next_due_date. This adequately informs the agent about the tool's effects, though it could mention any side effects on existing data.

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 extremely concise (two sentences) and front-loaded with the core purpose. Every word adds value, making it efficient for an AI agent.

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?

Despite simplicity, the description fully covers the tool's function and recommended invocation cadence. With an output schema present, it does not need to detail return values, making the description 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?

There are no parameters, so the description need not add further parameter info. Following the baseline of 4 for zero-parameter tools, this score 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 the tool processes overdue recurring expenses, creating actual expense entries and updating next_due_date. This is a specific action distinct from sibling tools like add_recurring or list_recurring.

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 explicitly recommends calling this tool daily or at server startup, providing clear context for use. No alternatives or when-not-to-use guidance is needed given its batch processing nature.

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