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

Goes well beyond the annotations: 'Reviews expire after 30 minutes' (lifetime limit), 'leaves the original unchanged' for revise, owner-sign-in requirement and 'these links are not public or bearer download URLs' for downloads, 'this does not fetch the URL' alongside openWorldHint=false, and the music-rights caveat. Nothing contradicts readOnlyHint=false or destructiveHint=false; the non-destructive revise behavior actually reinforces the latter.

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?

Runs as one unstructured block that jumps between article, intake, the main set-list flow, revise, video export, auth and rights without headings or ordering. Every sentence carries information, but the front-loading is wrong — the tool's central purpose appears mid-paragraph after a secondary mode.

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 an 11-parameter, nested-object tool with 0% schema coverage and no output schema, the description covers workflow order, expiration, auth/ownership, destructive boundaries and the shape of the review ('recordings, narration and issues'). Only the input constraints (maxItems/maxLength) and any explicit note that no output schema exists are left implicit.

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 description coverage is 0%, so the description must carry the load, and it maps nearly every parameter to its action: title/url/text for article, title/notes for intake, material for review, reviewId for prepare, sessionId+changes for revise, sessionId+beatId for export_video, jobId for video_status. It does not mention the array caps (tracks maxItems 12, changes maxItems 25, sources maxItems 20) or the string maxLengths, so it stops short of full compensation.

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?

Concrete verbs and resources are present — 'Turn a supplied ordered set list and exact liner notes into a playable story', plus per-action roles for article, intake, review, prepare, revise, export_video, video_status and credits. However, the opening sentence leads with the action=article sub-mode rather than the tool's core identity, and it never distinguishes itself from plausible siblings like make_playable or prepare_episode. Clear, but sibling differentiation is absent.

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?

Explicit sequencing is given: 'First use action=review with material ... then action=prepare with that reviewId after approval', with per-action preconditions ('Inspect its evidence and narration before action=review', 'Review all extracted identities and unassigned lines before action=review'). Exclusions are stated too: 'this does not fetch the URL', 'Does not publish or start playback', 'Music rights are not granted'. An agent knows exactly which action to pick and in what order.

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