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

Annotations already mark this as destructive and non-read-only, and the description adds real context on top: irreversibility, the completed/no-new-work consequence, the publishing side effect of isPublished, and the date-defaulting rule (keeps existing planned date or gets current date). That is well beyond what the hints convey.

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?

Dense multi-clause sentence with the primary effect front-loaded, followed by the date default and the irreversibility warning. Every clause carries information, though the semicolon-chained structure makes it slightly run-on.

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?

No output schema exists, and the description compensates by noting the response returns the resulting releaseDT, plus it covers side effects, defaulting, and irreversibility for a destructive 3-param mutation. Remaining gaps are minor (permissions, downstream impact on tasks) but not agent-blocking.

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 100%, so the baseline is 3, but the description adds behavior the schema descriptions don't: what happens when releaseDT is omitted (existing date retained, or current date applied if none) and that isPublished triggers publication. versionID semantics remain unelaborated, keeping it from a 5.

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+resource ('Releases a version') and explains the resulting state change: marked completed, no longer offered for new work, and the isPublished side effect. It semantically separates release from sibling mutators like version_update, though it never names an alternative 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?

Gives a clear usage gate: 'Irreversible; only at the user's explicit request,' which tells the agent when not to call it unprompted. It does not point to version_update or any alternative for the reversible cases, so it stops short of full when/when-not/alternatives coverage.

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