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

Annotations already declare readOnlyHint=false, destructiveHint=false and idempotentHint=true; the description adds real value on top by explaining the staged-review semantics (nothing is applied), the retry contract for requestId, and enforced workspace/project/account permissions. It omits conflict/expiry behavior (e.g. what a stale expectedVersion produces), keeping it below a 5.

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 tight sentences, front-loaded with the core purpose and the non-application caveat before prerequisites. Only minor slack ('in MCPBinder', 'this exact action'), so nearly every sentence earns its place.

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 5-required-param mutation with nested objects, annotations covering safety/idempotency, and no output schema, the description supplies the essential workflow semantics and the version-fetch prerequisite. Remaining gaps (conflict handling, proposal lifetime, meaning of reason) are secondary for correct invocation.

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 20%: itemId and the nested patch fields are documented, but expectedVersion, reason, and requestId have none. The description partially compensates by explaining requestId (unique, reused on retry) and expectedVersion (current version from get_*), but reason is left entirely unaddressed, so the gap is not fully closed.

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 and resource ('Save a proposed change') and immediately clarifies what it is not ('This does not apply the proposed change'), which cleanly separates it from the direct-mutation siblings like item_update and items_update. An agent can identify the tool's role without opening the schema.

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?

Gives concrete context for use: to stage a change for human review, and to fetch the current version via get_tasks, get_items, or get_workspace before calling. It also tells the caller to reuse requestId when retrying. It stops short of naming an alternative (e.g. applying directly) or stating when-not to use it, so it is clear context without full routing.

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