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

Beyond the annotations, it discloses the key consequence: clips from the take you leave are preserved ('put aside'), so the switch is non-destructive even though readOnlyHint is false. It also warns that local state must be refreshed via get_project. The phrasing 'their ids change nothing' is ambiguous, and error behavior is not covered.

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?

Two short sentences, front-loaded with the action and followed by the state-refresh caveat. The middle clause about clip ids is worded loosely enough to cost a little clarity.

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 three-parameter, non-destructive mutation with no output schema and full annotation coverage, the description covers what changes, what is preserved, and the required follow-up call. Only edge cases (invalid ids, prior take handling) are absent.

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 only 33% (just projectId is documented), so the description has to carry slotId and takeId. It partially does by framing the operation as picking a take within a slot, but it adds no id format, origin, or required-ness guidance.

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 gives a specific verb and resource: choosing which take of a slot is active for playback and export. That is clearly distinct from add_take, remove_take, list_takes and export_takes in the sibling set, though no sibling is named explicitly for 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?

Usage is implied by the purpose line, and there is a useful post-call instruction ('call get_project again after switching'), but nothing says when to prefer this over update_slot or other slot-editing tools, and no prerequisites are stated.

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