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

Annotations already establish that this is a non-destructive, non-idempotent, closed-world write, so the bar is lower. The description adds real behavior beyond that: the connected user is auto-assigned, status must belong to the destination project, attaching files requires files:write in addition to tasks:write, and requestId must be preserved across retries.

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?

Front-loads purpose in the first sentence, then stacks constraints in short declarative sentences with no filler. Four sentences for a 7-parameter create tool is efficient, though the permission notes are slightly fragmented across the text.

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?

Covers preconditions, auto-assignment, status validity, extra permission scope for attachments, and retry semantics, while the output schema handles return values. Adequate for a create tool; it could still clarify duplicate-request/dedupe behavior for the requestId.

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 every parameter is already documented in the schema (including requestId reuse and status lookup via list_project_statuses). The description largely restates those constraints rather than adding syntax or format detail, so the baseline 3 applies.

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+resource ('Create a task') and adds the precondition that the user must have specified the target project and intended task. It is clearly distinguishable from edit_task_content/update_task by the create verb, but it never names or contrasts a sibling explicitly, which keeps it short of a 5.

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?

Gives a clear usage condition ('after the user has specified the target project and intended task') plus the prerequisite that the initial status must belong to the project. It offers no explicit when-not or named alternative, so it stops at clear context rather than full routing guidance.

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