filament_colors

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

With no annotations and no output schema, the description carries the full burden; it does disclose that the result is a set of name/hex pairs, which is the key behavioral fact. However it omits what happens with an unknown preset, whether the '@BBL X1C' suffix is required, and whether this is static reference data or requires a connected printer/profile.

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?

A single compact sentence with the resource and return shape front-loaded and a useful inline example. Nothing extraneous, though the phrasing is slightly compressed to the point of ambiguity about what 'line' means.

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 one-parameter lookup with no output schema, the description covers the resource and roughly the return contents, which is close to adequate. It falls short on the exact preset string contract and failure behavior, which an agent needs to invoke it reliably.

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 0% for the single required 'preset' parameter, so the description must compensate. It partially does by giving one literal example ('Bambu PLA Basic @BBL X1C') that reveals the expected string format, but never states that preset = the filament line/preset name or whether prefix matching is allowed.

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 states a concrete resource and return shape: 'Official colors (name, hex) of a Bambu filament line.' An agent can tell this is a read lookup of filament color options, distinct from sibling tools like search_presets or save_filament_preset, though the differentiation is by implication rather than explicit contrast.

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 statement of when to call this versus search_presets, list_user_presets, or get_setting, and no prerequisites or exclusions. The example preset string hints at the expected input but gives no guidance on selection.

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