netintel_cron_parser

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

No annotations exist, so the description carries the full burden. It does disclose the return content (explanation + 5 run times), which is genuinely useful behavior, but it says nothing about timezone basis for the computed runs, how invalid expressions are handled, or accepted cron dialects — the two traits an agent most needs to know before trusting the output.

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?

A single front-loaded sentence naming all three outputs with zero filler. Nothing to trim and nothing buried.

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 output schema, the description adequately frames what comes back, but the omission of timezone semantics and invalid-input behavior leaves real gaps for a tool whose entire value is time computation.

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?

One required parameter with 0% schema description coverage, so the description must compensate. 'Parse a cron expression' does identify what the parameter is, but gives no format guidance (5-field vs 6-field, named aliases like @daily, MON-SUN) and no example.

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?

States a specific verb and resource (parse a cron expression) plus two concrete derived outputs: a plain-English explanation and the next 5 run times. No sibling tool in the list does cron work, so it is trivially distinguishable.

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?

Usage is implied by the purpose — an agent knows to call it when it has a cron expression — but the description offers no explicit when-to-use trigger, no precondition (e.g. expression must be valid/standard format), and no note about re-interpreting results via a sibling.

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