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

Annotations declare non-read-only and non-destructive, and the description adds genuine value beyond them: atomic application, rebasing of non-conflicting stale edits, and rejection of conflicting edits. This concurrency/conflict behavior is exactly the kind of context annotations cannot convey. It stops short of naming the revision parameter or the authentication requirement that governs those semantics.

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 sentences, zero filler, and the atomicity guarantee is front-loaded before the conflict-handling detail. Nothing could be trimmed without losing meaning.

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?

A mutation tool with 6 parameters, 0% schema coverage, and no output schema needs to carry far more of the load. The description omits authentication requirements, the role of baseRevision as the concurrency anchor, batch size limits, and what a successful or rejected application returns.

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% across 6 parameters, so the description must compensate and largely does not. 'Rebased/conflicting edits' gestures at baseRevision but never names it or explains its relationship to the described conflict behavior; agentToken, projectId, locale, clientMutationId, and the 1-100 action limit are entirely unaddressed.

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 specific verb ('applies') and resource ('one or more registered actions') with an atomicity qualifier. It is clearly distinguishable from siblings like studio_validate_project or studio_request_preview, though it never explicitly contrasts itself with them.

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 when-to-use guidance, no prerequisites, and no routing to alternatives. An agent cannot tell from the description whether this is the right call versus studio_validate_project or studio_request_preview, nor when a single vs batched application is appropriate.

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