List the 25 baby milestone types this tool knows (name, emoji, day offset from birth, group). No birth date needed. Use get_milestone_dates to turn these into real dates.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description carries full burden. It describes output structure and that it's a read-only list of known types. It adds context about the fixed 25 count, but could mention whether the list is exhaustive or dynamic.
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?
Two sentences, front-loaded with key purpose, no fluff. Efficient and clear.
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 zero-parameter list tool with no output schema, the description fully explains what is returned and the count, and references a sibling tool for next steps. No gaps.
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?
No parameters, baseline 4. Description clarifies that no input (like birth date) is needed, adding meaning beyond the empty 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 it lists 25 baby milestone types with fields (name, emoji, day offset, group). It distinguishes from the sibling get_milestone_dates by noting that tool converts to real dates.
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?
Explicitly says 'No birth date needed' and 'Use get_milestone_dates to turn these into real dates,' giving clear when-to-use and when-not-to-use guidance compared to siblings.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
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Each tool serves a distinct purpose: age calculation, milestone dates, zodiac sign, and milestone listing. No overlap in functionality.
All tool names follow a consistent verb_noun pattern with snake_case (get_baby_age, get_milestone_dates, get_zodiac_sign, list_milestones).
Four tools are appropriate for the domain, covering core baby age queries without being excessive or insufficient.
The tool set covers all essential aspects: age calculation, milestone dates, zodiac sign, and a reference list of milestones. No obvious gaps for the stated purpose.
