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

Annotations already cover read-only/idempotent safety, but the description adds real value: the status enum meanings (not_ready, at_risk, ready, released), the fact that counts are derived from the board by fixed rules, and a concrete 403 feature_disabled remediation path. It stops short of describing return shape or ordering, but that is a minor gap against annotation coverage.

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?

The opening sentence is a verbatim repeat of the title, which wastes the most valuable front-loaded position. The remainder is dense and earns its place, but the title duplication is avoidable bloat.

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 burden of explaining what is returned, and it does reasonably: readiness status values and derived counts. Only the state filter's semantics and result ordering 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 coverage is 50%: project_key is fully documented in the schema, while the state enum has no description. The description's 'planned ones by default' hints at the state default but never explains planned vs released vs all, so it only partially compensates.

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?

Names a specific verb+resource (releases of the project) and adds scope detail (readiness, D113, planned by default). It is distinguishable from get_release/create_release by the plural listing framing, though no sibling is named explicitly.

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?

'Planned ones by default' implies the state filter and when the default applies, and the 403 branch tells the agent what to do on failure. However, there is no explicit guidance on when to choose this list tool over get_release or how 'all'/'released' should be selected.

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