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

Annotations already declare readOnlyHint, destructiveHint=false and openWorldHint=false, so 'Creates nothing' is largely redundant reinforcement. The description does add genuine value by describing the result's contents (status, progress summary, blocking dependency, next step) and a caution that credit effects for a failed task must be reported only as the result states — useful, since there is no output schema. It says nothing about polling, terminal states, or how wait_seconds changes behavior.

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 with the core read operation front-loaded and no filler. The parenthetical '(an answer, instruments or a price)' is slightly cryptic but costs little.

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?

With no output schema, the description carries the return-value burden and does reasonably well by naming the four result facets. It still leaves the calling contract incomplete — no guidance on supplying job_id, on polling with wait_seconds, or on what terminal/failed states look like beyond the credit caveat.

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%: wait_seconds is documented in the schema but job_id carries no description anywhere. The description refers only to 'a task' and never explains what job_id identifies or where it comes from, so it does not compensate for 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 specific verb and resource — 'Read a task's status' — and enumerates the returned facets (progress summary, blocking dependency, next step), which is far more informative than the bare name 'get_upload_status'. It never names the sibling tools it must be distinguished from (get_transcription_quote, cancel_transcription, transcribe_again), so an agent must infer the boundary.

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?

There is no explicit when-to-use statement, no prerequisite chain (e.g. after begin_audio_upload), and no named alternative for related questions like quote status or re-transcription. The phrase 'its next step' hints at workflow monitoring, but that is inference rather than guidance.

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