get_color

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

With no annotations, the description carries the full burden. It discloses that the result includes approximate HEX/RGB and finish, which is the key behavioral fact given there is no output schema, but it says nothing about read-only nature, error behavior on an unknown code, or how approximation is derived.

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?

Two short sentences with the lookup scope first and the returned fields second. Every clause carries information; nothing is repeated from the schema.

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 two-parameter read lookup with no annotations or output schema, the description covers the core purpose and the shape of the result. It omits not-found behavior and where the palette ID comes from, which matter for correct invocation.

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 50%: paletteId is documented in the schema with an example, but 'code' has no schema description. The description fills that gap by identifying it as the printed code on the bead, and the phrase 'palette ID and printed code' makes clear both are required keys.

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: look up a single fuse bead keyed by palette ID plus printed code. That singles it out from the search/list siblings, though no sibling is named explicitly and the title is null.

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?

'Look up one ... by palette ID and printed code' implies an exact-match single-record fetch, contrasting implicitly with search_colors and list_palettes. It never states when not to use it, nor the prerequisite that the palette ID should come from list_palettes.

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