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

Annotations indicate idempotentHint=true and readOnlyHint=false, so the description's 'Update' aligns with the write nature. However, the description adds no behavioral context beyond what the annotations provide. There is no disclosure of what happens to the project task, whether there are side effects, whether it can be called multiple times safely despite idempotency, or what privacy-filtered means at runtime. A 3 is baseline since it doesn't contradict annotations, but the description adds almost no behavioral value.

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 short (one sentence), but it is not effectively structured. It front-loads the verb 'Update' but the rest of the sentence is confusing and jargon-heavy ('hosted submit project task', 'privacy-filtered project metadata'). Conciseness alone does not compensate for lack of meaningful content.

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 tool has 5 parameters, a nested details object, no output schema, and no enum values, the description gives the agent almost no help. It doesn't explain what a 'project task' is, what the details object expects semantically, what idempotencyKey is for, or what the response will be. The tool appears to be a write/update operation, yet the description is too thin for an agent to invoke it correctly in context.

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%, so the description must compensate for the parameters, but it does not. The description only mentions 'privacy-filtered project metadata,' which vaguely hints at filtering but doesn't explain parameters like projectId, idempotencyKey, details, sessionId, or executionId. The presence of required idempotencyKey and projectId is not reflected anywhere in the prose. The description fails to add meaning beyond the schema structure itself.

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 says 'Update hosted submit project task using privacy-filtered project metadata.' The verb is 'Update' and it names the resource, but the resource name is ambiguous: 'hosted submit project task' reads like a label, not a clear operation. The phrase is confusing because 'hosted submit project task' doesn't clarify what this tool actually does or what 'submit' refers to. It doesn't clearly distinguish from siblings like submit_node_instruction, project_write, or begin_project_sync.

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 provides no guidance on when to use this tool versus alternatives. It doesn't mention what a 'project task' is, what 'hosted' means, or when an agent should choose this over project_write or submit_node_instruction. The context 'privacy-filtered project metadata' is ambiguous and unhelpful for a calling agent.

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