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

Annotations already cover the safety profile (readOnlyHint=false, destructiveHint=false, openWorldHint=false), so the bar is lower. The description adds workflow meaning to each state, which is genuinely useful, but it does not say what happens on a transition — whether reviewers are notified, whether other project state changes, or whether it's reversible.

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?

Very compact and front-loaded — the state meanings come before the instruction. The phrasing "Where the project stands:" is slightly indirect for opening a tool description, but nothing is wasted.

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 mutation with no output schema, this is mostly adequate: the enumerable states are explained and one usage cue is given. It still lacks the effect of the call (notifications, collaborator visibility, whether the default open project is assumed when projectId is omitted).

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 only 50% and the status enum has no description in the schema, so the description must carry that weight. It does: each of the four enum values is defined with a concrete meaning, which is real added value. The projectId default is left to the schema, which already documents it.

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 enumerates the four states and their meanings, so an agent can infer this tool writes the project's review state, but it never states the verb+resource directly ("sets the project's review status"). The closest thing to a purpose statement is "Set 'review' when you finish a round," which covers only one value and leaves the overall operation implicit.

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 a partial when-to-use hint for a single value ("Set 'review' when you finish a round"), and the parenthetical state definitions imply when each state applies. However, it names no alternatives (e.g., check_edit, list_changes, compare_versions, keep_changes/revert_changes) and gives no when-not guidance or prerequisites.

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