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

No annotations are provided, so the description carries the full disclosure burden for a state-mutating tool, and it falls short: it never says whether blocking affects scheduling/dependents, whether the change is reversible, who may perform it, or what happens to an already-blocked task. The only behavioral clue is 'temporarily', which is vague about duration or automatic unblocking.

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?

A single, front-loaded sentence with no waste, though it is arguably too terse given the tool's state-changing nature. Every word earns its place, which is the dimension's concern.

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 4-parameter mutation tool with no annotations and no output schema, the description is thin: it omits side effects, permissions, idempotency, and return behavior. The agent gets the gist but not enough to call this safely in edge cases.

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 100% and the action enum is fully documented, so the schema already does the heavy lifting; baseline 3 applies. The description adds no extra nuance about the optional reason field or how account_code/task_relative_id scope the operation.

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 pair (block/unblock) and resource (task), plus the condition of temporary incompletability, so the agent knows exactly what changes state. It does not, however, distinguish itself from the sibling ManageBlockerLinksTool, which deals with a closely related 'blocker' concept and could plausibly be confused with this one.

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 statement of when to block versus unblock, no prerequisites (e.g., permissions or whether a reason is required), and no routing to any of the 21 siblings. The phrase 'cannot be completed temporarily' hints at the situation but is not actionable guidance.

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