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

Annotations already declare readOnlyHint and non-destructive behavior, and the description reinforces this with 'does not write account or native report data,' which tells the agent there are no side effects to warn the user about. It also flags the reference-retention requirement, useful behavior beyond the structured fields, though idempotency isn't mentioned.

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 short sentences, front-loaded with the purpose, then correction behavior, then the confirmation constraint and reference retention. Dense but each sentence carries instruction; only minor tightening is possible.

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?

An output schema exists, so return structure needn't be spelled out, and annotations cover the safety profile. Combined with the description's coverage of correction flow, reference retention, and no-write behavior, an agent has what it needs 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?

With only 25% schema coverage, the description must compensate, and it does: it explains what previous_palette_ref is for (retaining source and revision during correction) and constrains confirmed to the user's stated choice. season_id's enum and analytics_opt_out are already fully documented in the schema, so the remaining gap is small.

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 specific verb and resource: it returns a portable, user-confirmed palette from an explicit season choice, and it distinguishes confirmation from correction by describing the prior-reference path. It doesn't name any sibling tool to contrast with get_palette_board or create_palette_board, so it falls short of a 5.

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?

It gives clear operational rules: pass previous_palette_ref when correcting so source and revision are retained, confirm only the user's stated choice, and keep the returned reference for later calls. There's no explicit when-not or named alternative, but the confirm-vs-correct distinction effectively routes usage.

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