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

Annotations already establish readOnly/idempotent/non-destructive, and the description adds real value beyond them: it distinguishes blocking deficiencies from non-blocking 'worth a second look' items and states the concrete intake rules (WAV 16/24-bit 44.1 kHz stereo; square RGB JPG 3000-6000 px). It does not describe output shape, but the blocking/non-blocking distinction is meaningful behavioral context.

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?

Front-loaded and efficient: the scope ('one track or one album') leads, followed by blocking vs non-blocking intent and the timing cue. The parenthetical format list is dense but earns its place by pinpointing the intake constraints.

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 return-value burden and does so conceptually, describing missing items plus advisory 'second look' warnings and the underlying rules checked. What remains thin is the return shape and how issues are grouped, but overall it is complete enough to call correctly.

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 100%, so the schema already documents artist, album_id, and track_id in detail (including the label-connection nuance). The description's 'one track or one album' aligns with the schema but adds no new semantics, so the baseline 3 is correct.

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 scope: checks everything still needed before a track or album release can be submitted, plus non-blocking warnings. It is clearly distinguishable from generic tools, but it never names or rules out the closely related siblings get_requirements, get_release_questions, or list_release_todos, so an agent must guess which 'readiness' tool is canonical.

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 concrete timing guidance: 'Call this after writing, and again before telling the artist something is ready.' This is clear usage context, but there is no explicit when-not or an alternative-tool routing (e.g., versus get_requirements), so it stops short of full selection guidance.

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