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

Annotations already declare readOnly/idempotent/non-destructive, so the safety profile is covered; the description adds genuine behavioral context with 'Soft-deleted releases read as not found,' which tells the agent how a deleted record manifests and prevents wasted retries. It stops short of describing auth requirements or the exact not-found response shape.

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 compact sentences: the core behavior with the returned field list front-loaded, then the soft-delete caveat. No filler, no restatement of the name or annotations.

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 usefully enumerates the returned fields (name, version, status, targetDate, description, storyIds, structured-notes flag), which is exactly the compensating detail needed for a single-param tool. Minor gap: no indication of error behavior for malformed UUIDs or a missing release.

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% and the sole parameter is documented in the schema as 'UUID of the release.' The description only reinforces that the id identifies a single release, adding little beyond the structured field, so the baseline 3 applies.

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 ('Fetch a single release by id') and enumerates the fields returned, so the agent knows exactly what this tool produces. It implicitly separates itself from list_releases via 'single ... by id', but never names that sibling 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?

Usage is implied by 'by id' — this is the lookup path when a release UUID is already known, as opposed to the bulk list. However, there is no explicit statement of when to prefer this over stride.list_releases or any exclusion for soft-deleted records beyond the not-found note.

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