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

Annotations already establish readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds genuinely new behavioral context: results are permission-scoped by caller identity (creator sees all, others only their own), and it discloses the default ordering. It omits pagination/result-size behavior, which keeps it at 4.

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 compact sentences, front-loaded with the resource and scoping rule, with no filler. The telegraphic parenthetical and dense sort-order clause are efficient though slightly compressed.

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?

There is no output schema, so the description is the only place to learn what an application record contains, and it says nothing about returned fields, counts, or pagination. For a simple two-parameter read tool with annotations this is adequate but 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 50%: task_id is described in the schema and the sort enum lists only bare values. The description compensates by explaining what the default ordering means ('applicant trust, then acceptance rate, then on-time rate'), which is real meaning the schema does not convey. It never explains what the 'newest' sort option does, leaving half the enum unexplained.

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?

The description identifies the resource ('Applications for a task') and the scoping rule, which is enough to distinguish it from siblings like list_deliverables or list_agent_proofs. The verb is only implied by the tool name rather than stated, and no sibling is named explicitly, so it stops 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?

Usage is implied: fetch this when you have a task_id and want its applicants. The visibility clause ('creator sees all; others only their own') gives useful situational context, but there is no explicit when-not guidance or pointer to an alternative tool for related lookups.

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