convert_timestamp

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

With no annotations provided, the description carries the transparency burden. It discloses accepted units (seconds or milliseconds), output format (ISO 8601), and the current-time behavior when omitted. It does not mention timezone handling or invalid inputs, but these are minor for this utility.

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?

One compact sentence that front-loads the conversion purpose, states accepted input units, and covers the optional-parameter behavior. No wasted words.

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 one-parameter utility with no annotations and no output schema, the description covers purpose, parameter semantics, units, and the omitted-parameter case. Minor omissions like output timezone or error behavior are acceptable at this complexity level.

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?

Despite having no schema descriptions, the description adds the crucial unit detail (seconds or ms) and explains the effect of omitting the parameterage the optionality. It could also clarify whether a numeric string is accepted, but the core meaning is well supplied.

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 names the operation (convert Unix timestamp to ISO 8601) and the special no-argument case (return current time), making it easy to distinguish from siblings like convert_timezone and parse_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 intended use is clear from the conversion action itself, but the description does not explicitly state when not to use it or mention alternatives, so guidance is only implicit.

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