chuk-mcp-time

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively describes key traits: the method ('Queries multiple NTP servers'), accuracy aspects ('high accuracy', 'mode' parameter), and latency compensation behavior. However, it does not cover potential errors (e.g., invalid timezone), rate limits, or authentication needs, leaving some gaps in behavioral context.

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 well-structured and front-loaded with the core purpose, followed by method details, parameter explanations, and return information. Each sentence adds value without redundancy, such as the NTP server explanation and parameter defaults, making it efficient and appropriately sized for the tool's complexity.

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 3 parameters, no annotations, and no output schema, the description is largely complete, covering purpose, behavior, and parameter semantics. However, it lacks details on error handling or the exact structure of 'TimezoneResponse', which could be useful given the absence of an output schema, leaving minor gaps in context.

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?

Given 0% schema description coverage, the description fully compensates by providing detailed semantics for all 3 parameters. It explains 'timezone_name' as an IANA timezone name with an example, 'mode' as an accuracy mode with options, and 'compensate_latency' as a boolean with default and effect. This adds significant meaning beyond the bare 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?

The description clearly states the specific action ('Get current time for a specific timezone') and resource ('timezone'), distinguishing it from siblings like 'get_time_utc' (UTC only) or 'convert_time' (conversion between times). It includes the method ('Queries multiple NTP servers') and output scope ('Includes all consensus metadata and source details'), making the purpose highly specific and differentiated.

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 implies usage for accurate time retrieval in a specific timezone, but does not explicitly state when to use this tool versus alternatives like 'get_time_utc' (for UTC time) or 'convert_time' (for time conversion). It provides some context with 'high accuracy' and NTP server details, but lacks clear exclusions or named alternatives, leaving usage somewhat inferred.

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