Eight Sleep Cache Status

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

Annotations already declare readOnly, idempotent, and non-destructive. The description adds behavioral context beyond that: the cache is local SQLite and optional, and it specifies how to enable it. This gives the agent useful operational context without contradicting the annotations.

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 description is two short sentences, with the core action front-loaded and the activation detail right behind it. Every word earns its place; there is no redundancy or filler.

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 simple status tool with an output schema and read-only annotations, the description covers the essential context: what the tool shows and how the cache is enabled. A minor omission is not specifying the tool's behavior when the cache is not enabled, but that is likely covered by the output schema.

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 0%, and the description does not mention the single response_format parameter at all. It therefore adds no semantic meaning beyond the enum and default already present in the schema. With low coverage, the description was expected to compensate, but it does not.

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 opens with 'Show optional local SQLeite cache status', a specific verb and resource that clearly identifies the operation. None of the 24 sibling tools mention cache, so it is immediately distinguishable. The activation hint further clarifies that this tool reports on an optional cache subsystem.

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 states the cache is optional and gives the exact environment variable values that enable it, making it clear when this tool is applicable. It does not provide explicit when-not-to-use guidance or alternatives, but no sibling tool covers cache status, so the context is sufficiently clear.

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