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

With no annotations, the description carries the full burden and does well: it discloses ordering ('newest first'), the fields returned ('remix_id and created_at'), that it is 'Free', and error semantics ('404 hook_not_found or find_not_found for one that is not yours'). Pagination/limits are not mentioned, which keeps it from a 5.

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?

Front-loaded and dense with no filler sentences. The clause 'each as its answer held it' is cryptic and slightly reduces clarity, but overall it earns its space.

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?

An output schema exists so return-shape detail is not strictly required, yet the description still summarizes it and covers errors, cost, and ordering. For a filtered list tool this is nearly complete; only pagination/volume behavior is missing.

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 coverage is 67%, just under the high baseline. The description reinforces the mutual-exclusivity of hook_id/find_id and that they must be 'yours', but the api_key parameter is undocumented in both schema and description, and no ID format or syntax is added.

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 ('list remixes') with explicit scope ('you paid for from one hook or one find'). This distinguishes it from get_remix (single item) and the find/hook listing siblings without opening any schema.

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 either/or selection rule (supply hook_id OR find_id) is stated, which is genuine usage guidance. However, no alternative tool is named and there is no when-not guidance (e.g., versus get_remix or list_finds), so it stays at implied usage.

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