get_access

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

Despite having no annotations, the description discloses cost, free tier, local storage, dependency of other tools, and the one-time call expectation. It does not cover behavior on repeat calls or response/error format, so it is not fully transparent but far above average.

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?

Three sentences cover the purpose, pricing, storage, and invocation timing with no fluff. Key details are front-loaded and every sentence contributes information.

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 one optional parameter and a clear handle, the description explains everything needed to call the tool correctly: why, when, what it costs, where the key goes. The return format is left out, but since the key is stored locally and used by other tools, that is not essential to the agent.

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 only parameter is 'name', and the input schema already documents it fully as an optional label with an example. The description adds no additional parameter guidance, but with 100% schema description coverage the baseline score of 3 is appropriate.

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 uses a specific verb ('Get') and resource ('bigapi API key') and clearly states the outcome: a locally stored key usable by all other tools. This distinguishes it from sibling billing/introspection tools like get_usage and get_balance.

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 description says exactly when to call it: 'Call this once if no key is configured.' It also explains that the key is shared by all other tools, which implies when it is needed. It does not explicitly list exclusions or alternatives, but the guidance is direct enough for an agent to decide.

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