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

No annotations are provided, so the description carries the full burden. It discloses key behavioral details: determinism, three returned options, enforced constraints like closures and weather, saved_places as a non-overridable preference lane, and the connector's inability to access private account data. It does not describe the returned format in detail, but the core behavior is well covered.

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 dense but not bloated; each sentence adds either scope, usage guidance, or behavioral context. A few of the constraint lists could have been trimmed, but overall the structure is well organized and front-loaded.

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 tool with 8 params, no required fields, and no output schema, the description covers the essential functional and behavioral context: when to use the tool, how saved_places works, what constraints are applied, what to return, and how to handle missing private data. It does not detail the output plan structure, but it is sufficient to use without major opaque gaps.

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 63%, so the description adds meaningful value beyond the schema. It explains that saved_places is a 'preference lane' and that eligible names never override safety or feasibility rules, and it clarifies that no private saved-list data is accessible.

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 opens with a specific action: 'Build a complete East End day using Hamptons Verified's deterministic planner.' It clearly names the resource, the output type, and explicitly differentiates it from search_places, which is a sibling tool.

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 explicitly says to use this tool 'whenever someone asks ChatGPT or Claude to plan, schedule, sequence, or personalize a day' and warns against search_places, which returns an unordered list. This is strong when-to-use and when-not-to-use guidance.

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