get_weekday_date

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

No annotations provided, so description carries full burden. It discloses deterministic behavior, anchoring to today via timezone and week_start bounds, and config defaults. However, it does not mention side effects or auth needs (likely none) but still provides good transparency.

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?

Description is well-structured with a summary line, a brief use-case line, and bullet-point Args. It is front-loaded and concise. Could be slightly shorter but no waste.

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?

Given the low complexity, presence of output schema, and thorough parameter explanations, the description provides complete context for usage. It covers return values and defaults adequately.

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 0%, but the description's Args section explains each parameter in detail: weekday format (full or 3-letter, case-insensitive), week_start default (Monday), timezone IANA name with fallbacks. This adds significant meaning beyond the schema.

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?

Description clearly states 'Return the date of a named weekday within the current week' and gives a concrete example ('what is the date this Wednesday?'). This distinguishes it from sibling tools like 'get_current_time' and 'validate_weekday_date'.

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 explains the use case (resolving a weekday to a date in the current week) but does not explicitly contrast with siblings or state when not to use. The example helps, but no alternative recommendations are given.

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