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

Annotations already indicate readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is clear. The description adds moderate value by stating the return format (rendered body with link) but does not discuss auth, rate limits, or side effects beyond mutation hints.

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 description is extremely concise—two sentences that front-load the action, scope, and output. Every word earns its place; no filler or redundancy.

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 read-only tool with full annotations, the description adequately covers the return value and scope. However, the phrase 'Canton-specific' slightly contradicts the listing of multiple repos, causing minor ambiguity. Otherwise, it's complete.

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 both parameters are already explained in the input schema. The tool description reiterates 'version' and 'repo' implicitly but adds no new semantic detail, meeting the baseline of 3.

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 clearly specifies the action: 'Fetch the release-notes body for one SDK version' and identifies the exact repos (canton, daml, dpm, splice). It also states the return value (rendered release body with link). This distinguishes it from sibling tools like get_latest_release or search_release_notes, though no explicit differentiation is given.

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 description lacks explicit guidance on when to use this tool versus alternatives. It does not mention when not to use it, nor does it reference siblings like search_release_notes for broader queries. The phrase 'Canton-specific' provides some context but is ambiguous given multiple repos.

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