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

Annotations already cover the safety profile (readOnlyHint=false, destructiveHint=true). The description adds genuinely non-structured behavior: the two-step needs_confirmation/approvalId flow and which fields are versioned. It does not explain reversibility or the confirmation trigger condition, but it goes well beyond the annotations.

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?

Three sentences, each earning its place: scope, exclusions with named alternatives, and an edge-case return. The most important constraint is front-loaded.

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 low-complexity rename with a rich schema and no output schema, the definition is nearly sufficient — it covers the special needs_confirmation return and the routing to other tools. Minor gap: no explicit statement that the rename itself is applied without confirmation or how long the needs_confirmation state persists.

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 coverage is 100%, with each parameter (including approvalId's 'omit on the first call' and workspace's token rules) documented inline, so the baseline is 3. The description only alludes to approvalId via 'needs_confirmation' and adds no syntax or format detail beyond the schema.

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 ('Changes a task's name') and immediately bounds its scope ('the gallery label only'). It also names the two siblings that handle the other fields (workbench_tasks_compile, workbench_tasks_freeze), so the agent can distinguish it without opening a 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?

Explicitly tells the agent when NOT to use this tool — sentence and plan changes go through compile/freeze, 'never here'. It stops short of spelling out the positive-use conditions or the workspace/approval prerequisites, but the routing guidance is clear.

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