get_bills_payable

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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the core behavioral trait is covered. The description adds that results are 'outstanding' and tied to a specific date, which is useful but limited. No additional traits (e.g., pagination, what 'outstanding' means) are disclosed. With annotations handling the safety profile, this is adequate but not exceptional.

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?

A single sentence that starts with the core verb and resource, includes the key constraint ('outstanding', 'as of a given date'), and contains no extraneous words. Every part earns its place.

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 read tool with one parameter and no output schema, the description covers the essential purpose and filtering (date, outstanding status). It does not explain return format or provide examples, but given the low complexity, it is mostly adequate. Minor gap: missing what 'outstanding' means legally or in TallyPrime.

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 description coverage is 100% (the one parameter asOf has its own description). The tool description restates 'as of a given date', which aligns with the schema but adds no deeper meaning (e.g., date format, behavior if absent). With full schema coverage, a baseline of 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 uses a specific verb ('Get'), resource ('Bills Payable'), and scope ('outstanding ... as of a given date'), making it clear what the tool does. It naturally distinguishes from sibling tools like get_bills_receivable (which retrieves incoming bills) and other get_* tools.

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 guidance is given on when to use this tool versus alternatives. For example, it does not note that get_bills_receivable should be used for outstanding receivables, or that get_vouchers might provide more granular transaction details. The description merely states the function without context for selection.

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