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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the description does not need to repeat that this is a read operation. However, it adds no behavioral context beyond that: no mention of what the returned state contains, whether partial state can be returned, how identifiers relate to one another, or any other runtime behavior. The annotation safety profile is covered, but the description itself contributes little beyond the purpose.

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?

The description is a single concise sentence that front-loads the verb and resource. There is no filler, no repetition of the tool name, and no unnecessary detail. Every word earns its place, and the structure is immediately scannable by an agent.

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?

Given the lack of an output schema, 0% parameter coverage, and no usage or alternative guidance, the description is too thin for an agent to confidently invoke the tool correctly. The agent knows this is a read-only sync-state operation, but it is not told what the state will look like, what the parameters mean, or what conditions warrant supplying the optional sessionId and executionId. Annotations cover the safety profile but not operational completeness.

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%, and the description does not explain any of the four parameters. It does not say what projectId, syncId, sessionId, or executionId mean, how they relate to each other, or when the optional parameters should be supplied. The description must compensate for the bare schema but does not, leaving parameter semantics entirely to inference from names.

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 uses a specific verb ('Read') and a specific resource ('the state of one hosted graph synchronization'), which clearly distinguishes it from sibling tools that mutate syncs (begin_project_sync, commit_project_sync, seal_project_sync) or read other resources like project status. The phrase 'one hosted graph synchronization' narrows the scope to a single synchronization, leaving no ambiguity about the operation's target.

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?

The description implies usage through its purpose: use this tool when you need to read the state of a single hosted graph synchronization. However, it gives no explicit guidance about when not to use it or which sibling alternatives might be more appropriate for related but different needs, such as listing syncs or reading overall project status. This is implied usage at best, not clear routing.

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