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

There are no annotations, so the description carries the full burden. It does disclose a key behavioral trait – that passing parent_task_id nests the new item as a single step – but says nothing about permissions, duplicate handling, what the response returns, or what defaults get applied beyond the schema's own priority note.

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?

Two tight sentences, front-loaded with the core action, with no filler. The alternative-tool guidance is appended where it is actually needed rather than buried.

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 six-parameter mutation tool with no annotations and no output schema, the description covers intent and one routing case but leaves the agent guessing about the return value (an ID for follow-up operations) and creation side effects. Adequate, not complete.

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%, so all six parameters are already documented, and the description touches only parent_task_id, restating its meaning with a 'single step' constraint. The other five parameters get no added meaning beyond the schema, so baseline 3 is appropriate.

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?

Names a specific verb+resource ('Create a task') and adds semantic framing ('work you found that needs doing – a bug, a refactor, a follow-up') that grounds the abstract concept. It also distinguishes itself from the sibling taskhold_plan in the same breath.

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 states when to use parent_task_id and explicitly routes the multi-step case to taskhold_plan. It does not distinguish itself from taskhold_create_from_todo or taskhold_update, but the primary branching decision an agent faces is covered.

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