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

Annotations already declare readOnlyHint=false, destructiveHint=false, idempotentHint=true and a closed world, so the safety profile is covered. The description adds real value beyond that: 'Nothing is sent to the applicant' rules out external side effects and 'Free' signals no billing impact. It stops short of stating reversibility, per-ID partial failure behavior, or the 250-item cap's consequences.

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, purpose first, guard second, side effects third, cost last. Every sentence carries distinct information; nothing restates the title or is padding.

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 bulk mutation of up to 250 IDs with no output schema, the description says nothing about what comes back — whether results are per-ID, how partial failures are reported, or whether an idempotency key changes the response. Annotations cover safety, and side-effect/cost are addressed, but the response shape is an unexplained gap.

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 60%, and the description only re-lists the status enum values already enumerated in the schema. It adds no meaning for application_ids (bulk semantics, max 250), idempotency_key, uid or bearer_token beyond the schema's own text, so it neither compensates for nor compounds the coverage gap.

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 concrete verb (move) and resource (one or more applications) plus the exact destination statuses, which is specific enough to separate it from read-oriented siblings like list_applications or review_applications. An agent can tell immediately that this is a bulk status mutation, not a review or listing call.

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 an explicit activation condition — 'Only call when the user explicitly asks to change statuses' — which is a genuine negative guard against proactive status edits. It does not name an alternative tool for adjacent needs (e.g. reviewing or reading applications), so routing is implied rather than spelled out.

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