timestamp

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

Annotations are absent, so the description must carry the full burden of behavioral disclosure. It says it converts between formats but does not explain what the output looks like, whether a target format can be selected, or how ambiguous inputs are resolved. This leaves the core conversion behavior underspecified.

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 a single concise sentence, front-loaded with the action and resource, followed by a compact list of supported formats. There is no redundancy or wasted wording.

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 output schema, the description must specify what the tool returns, but 'convert between' leaves it open whether the output is a single converted value, an object with all formats, or something else. This ambiguity is essential for correctly invoking and interpreting the 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?

The input schema already documents the single parameter with 100% coverage, listing 'now', epoch seconds, epoch milliseconds, and ISO 8601 strings. The description adds 'human-readable' as an additional category but otherwise largely overlaps with the schema, so the added semantic value is modest.

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 states a specific action ('Convert') on a specific resource ('timestamp') and names the supported format families. Among siblings like regex, cron, json_diff, and base64, timestamp conversion is clearly delimited, so an agent can identify when this tool is relevant.

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, no preconditions, and no exclusions. It essentially restates the function, leaving the agent to infer usage context from the tool name alone.

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