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

No annotations exist, so the description carries the full burden. It does disclose meaningful behavior beyond the schema – deadlines are adjusted for weekends/holidays and cover multiple tax categories – but omits the return format, whether access_token is mandatory for 'PRO' access, and any failure/rate-limit behavior.

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 dense sentence front-loads the resource and scope with no filler, though the leading 'PRO.' token adds ambiguity rather than information.

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?

With no annotations and no output schema, the description must cover both behavior and returns. It handles scope and holiday adjustment well but leaves authentication gating, parameter formats, and response shape unaddressed – adequate but with clear gaps for a 3-parameter tool.

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 33%, with only access_token documented in the schema. The description compensates partially: 'N months' maps to months and 'optional fiscal_year_end' conveys optionality, but neither parameter's format, default, or accepted values (e.g., fiscal_year_end as MM-DD vs month name) are explained.

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?

States a specific resource (IRS filing and payment deadlines) with scope (next N months, individual/payroll/corporate, holiday-adjusted) and an optional modifier. An agent can tell it apart from generic sibling tools like next_holidays or business_days, though no explicit sibling routing is given.

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?

Usage is only implied by the resource name – 'upcoming IRS deadlines' suggests when to call it, but the description never states when to prefer it over siblings like due_date, next_holidays, or business_days, nor any prerequisites beyond the token.

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