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

Annotations already cover the safety profile (readOnlyHint=true, openWorldHint=false), so the bar is lower, yet the description adds real payload context with no output schema: products/prices, pool, targeting, trial/refund/KYC, live status, 24h hourly history, 20 latest reports, incidents, and 20 most recent changes. It stops short of mentioning pagination or freshness semantics for the history.

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 dense, front-loaded sentence that opens with the core purpose and then lists the payload; no filler. It is long but each clause maps to a distinct returned artifact, though it could be broken for readability.

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 carries the return-value burden and does so thoroughly, enumerating the record contents, live status, history window, report/incident/change counts. An agent knows what it will get back and how to call it.

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?

Schema description coverage is 100% and the single slug parameter is fully documented in the schema, including an example and a pointer to list_providers. The description adds nothing beyond that, so the baseline 3 applies.

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+resource ("One provider: the full database record") and enumerates exactly what the record contains. It implicitly separates itself from list_providers/search_providers by returning a single entity, but never names those siblings, so it falls short of full differentiation.

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 explicit when-to-use/when-not or alternative routing; the only orientation is "One provider" plus an API mapping to GET /api/v1/providers/{slug}. Usage is implied (fetch details for a known slug) rather than stated.

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