Market-Timing Caution Windows

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

Annotations already declare read-only, idempotent, non-destructive behavior, and nothing in the description contradicts that. The description adds genuinely useful operational context the annotations do not carry: the POST endpoint and a 10-credit Tier 1 cost, plus the 'generic' qualifier implying non-personalized output. It does not say how large a window is returned or whether results extend forward from the date.

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 core purpose is front-loaded and the boilerplate tags are compact, so nothing is bloated. However, the sentence is a bare fragment (no verb) and roughly half the text is group/endpoint/cost metadata rather than capability description, leaving the informative content thin rather than dense.

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 a single required parameter, full annotations, and an output schema (so return shape need not be spelled out), the definition is close to callable. The remaining gap is the date's temporal semantics and any hint about how this differs from the many other timing/caution siblings, which the description does not supply.

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 single parameter is documented nowhere: schema description coverage is 0%, and the description only repeats '[Required: date]' without clarifying whether the date is a single target day, a range start, or the anchor for a forward-looking window. The schema pattern supplies the YYYY-MM-DD format, but the semantic role of the date is left ambiguous.

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 identifies the resource concretely: caution windows derived from Mercury retrograde, eclipses, Mars retrograde and major macro aspects, which tells an agent this is an astrologically-derived market-timing risk calendar rather than a chart or report. It is a noun phrase without a verb and does not distinguish itself from adjacent timing tools (retrograde period lists, electional/business timing), so it stops short of a 5.

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?

There is no statement of when to call this versus alternatives such as retrograde-period or business-timing siblings, only the bracketed [Required: date] and [Cost] metadata. The word 'generic' hints that it is not natal-personalized, but the agent must infer that and is given no explicit exclusion or routing advice.

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