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

Annotations already declare readOnlyHint, idempotentHint, and non-destructive behavior, so the safety profile is largely covered. The description adds genuine value beyond them: it clarifies this 'does not write account or native report data' (reconciling the write-sounding name) and instructs the agent to retain the returned reference for later calls.

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?

Four tightly-scoped sentences, front-loaded with the core purpose. The correction path, confirmation constraint, and non-write disclaimer each add a distinct fact with little 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?

With an output schema present, return values need no explanation, and annotations cover safety. The description adds the correction workflow and the negative 'does not write' clarification, making it complete enough for an agent to call this correctly.

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%, so the description must carry the load. It meaningfully maps 'explicit season choice' to season_id and 'prior palette reference' to previous_palette_ref for correction. The const confirmed parameter is only indirectly addressed ('Confirm only the user's stated choice'), leaving syntax/format details to the schema.

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 clear verb+resource: 'Return a portable user-confirmed palette from an explicit season choice.' This distinguishes it from create_palette_board and get_palette_board by signaling a confirmation/normalization step rather than a retrieval or creation. It stops short of explicitly naming the siblings it differs from.

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?

'For correction, pass the prior palette reference...' and 'Confirm only the user's stated choice' give clear conditional guidance for the two modes (confirm vs correct). No explicit exclusions or named alternative tools, but the use context is unambiguous.

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