Delimit Release History

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

The description is very transparent about side effects, internal backend calls, and experimental status. However, annotations declare readOnlyHint=false while the description explicitly claims 'read-only against the ops backend' and 'No write'. This is a direct contradiction, so the score must be 1 per rubric.

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 front-loaded with the core purpose and organized into clear, purposeful sections. Every section contributes actionable information without boilerplate or unnecessary repetition.

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?

The description covers when to use, when not to use, sibling relationships, side effects, backend implementation, and experimental caveats. Since an output schema exists and the tool has only two simple parameters, this is complete enough for correct selection and invocation.

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%, with the schema already documenting environment as required and limit as an integer defaulting to 10. The description adds useful context about 'recent' releases but does not need to restate parameter semantics.

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 operation on a specific resource: returning the recent release timeline for an environment. It also distinguishes itself from related siblings such as delimit_release_status, delimit_release_rollback, and delimit_evidence_collect.

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 provides explicit 'When to use' and 'When NOT to use' sections with concrete scenarios and names the alternative tools. It also clarifies the time-axis versus point-in-time relationship with delimit_release_status.

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