place_time

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the tool returns current time in a specific format, implying it's a read-only operation, but doesn't mention any behavioral traits like rate limits, error handling, or data freshness. For a tool with no annotations, this is a significant gap in 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?

The description is extremely concise and front-loaded in a single sentence: 'Get this place's current time in ISO-8601 format: HHmmss.SSSZ'. Every word earns its place by specifying the action, resource, and output format without any waste or redundancy.

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 tool's low complexity (one parameter, no output schema, no annotations), the description is minimally complete. It states what the tool does and the output format, but lacks context on usage relative to siblings, behavioral details, or parameter meaning. This is adequate for a simple tool but leaves gaps that could hinder effective agent use.

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?

The description adds no parameter semantics beyond what the input schema provides. The schema has 100% coverage with one parameter 'placeId' documented, so the baseline is 3. The description doesn't explain what a 'placeId' represents, its format, or how it relates to the output, leaving the schema to handle all parameter documentation.

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's purpose: 'Get this place's current time in ISO-8601 format: HHmmss.SSSZ'. It specifies the verb 'Get' and the resource 'place's current time', along with the output format. However, it doesn't explicitly differentiate from sibling tools like 'place_date_time' or 'time_zone', which likely have related functionality.

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 provides no guidance on when to use this tool versus alternatives. There are multiple sibling tools related to time and places (e.g., 'place_date_time', 'time_zone'), but the description doesn't mention any context, prerequisites, or exclusions for usage. This leaves the agent to guess based on tool names alone.

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