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

Annotations already flag destructiveHint=true and idempotentHint=false. The description adds what annotations cannot: a 204 success status and the required API-key scope `time:write`, both of which materially affect call planning. It omits whether removal is reversible or how task totals are affected.

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?

Four short sentences, front-loaded with the action, then the common failure mode, the return code, and the auth scope. No filler or hedging.

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 destructive single-record delete with no output schema, the description covers the success signal and permission scope that an agent needs. Missing only irreversible-effect details, which keeps it from 5.

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 the schema already documents all four parameters, including timeEntryId as a numeric Long. The description's NOTE reinforces that constraint with an example, which helps but mostly repeats structured data, so 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 and scopes it ('Delete a time entry from a task'), which cleanly separates it from creation-oriented siblings like pm_log_time. It stops short of naming the alternative directly, so 4 rather than 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?

It never says when to reach for this rather than pm_log_time, pm_list_time_entries, or a task-comment delete, and there is no guidance about confirmation or prerequisites. The ID-format note is parameter advice, not usage guidance.

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