List Google Play track releases

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

Annotations already declare readOnlyHint and openWorldHint, so the safety profile is covered; the description adds meaningful context beyond that: a hard cap of 20 results, exclusion of obsolete releases, inclusion of lifecycle states, and the fact that no edit transaction is needed. It stops short of describing ordering or whether more than 20 releases can ever be retrieved.

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 short sentences with no filler; the result-shape information is front-loaded and the no-edit-required note follows as supporting context. Nothing is repeated from the annotations or schema.

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 two-parameter read tool with no output schema, the description should describe what comes back, and it does so only partially: release count cap and lifecycle states are mentioned, but the fields of a release, the ordering, and the meaning/format of both required parameters are absent.

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 parameter meaning, but it only weakly implies the 'track' parameter ('for a track') and says nothing about 'packageName'. It gives no hint of expected track formats such as 'production', 'beta', or form-factor-qualified names, and the regex-constrained packageName is entirely undocumented.

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 states a specific verb and resource ('Read ... releases for a track') and adds scope detail: up to 20, non-obsolete only, lifecycle states included. It does not explicitly differentiate itself from siblings like get_track or list_tracks, so an agent must infer that this returns release-level rather than track-level data.

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?

The sentence 'This endpoint does not require an app edit' is a genuine usage signal, implying the agent can call it without create_edit/commit_edit, which most sibling mutation tools require. However, there is no explicit guidance on when to prefer this over get_track or list_tracks, and no stated prerequisites for the track value.

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