list_custom_palettes

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

With no annotations, the description carries the full behavioral burden and does not meet it: nothing about whether the list is scoped to a user/org, whether it can be empty, pagination, or return shape. Worse, the embedded 'Everything in Free... Requires Kiln Pro' marketing text leaves it ambiguous whether listing palettes is itself gated, which could deter a legitimate call.

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 true purpose is one short sentence; the next three lines are promotional copy and an upgrade URL that earn no place in a tool definition. Front-loading is correct, but roughly three-quarters of the text is waste that competes with the actual instruction.

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?

This is a trivial no-parameter list tool with no output schema, so the description should at minimum say what a palette contains or how results are scoped. Instead it spends its length on tier advertising, leaving the agent with less usable context than the one-line summary alone would provide.

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 input schema has zero parameters, so there is nothing for the description to disambiguate and a baseline of 4 applies. The description does not misrepresent any inputs.

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 opening sentence gives a specific verb and resource — 'List all saved custom color palettes' — which is unambiguous about what the call returns. It does not distinguish itself from the nearby siblings save_custom_palette, delete_custom_palette, or push_palettes_to_cloud, so an agent gets the purpose but not the boundary.

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 the palette-related siblings, no prerequisite, and no note about local versus cloud palettes. The remaining sentences are an upsell pitch rather than guidance, so the agent must infer usage entirely.

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