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

Annotations already declare readOnly, idempotent, non-destructive, closed-world behavior, and the description adds real value on top: result ordering by start date, null semantics for end (single-day marker) and color (default), and a flag indicating whether sprints are enabled. It omits pagination or empty-result behavior, which is a minor gap for a read-only list.

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?

One dense sentence that is front-loaded with the resource and ordering, and every clause (field list, null meanings, sprints flag) conveys information. The inline brace notation is compact but slightly cryptic.

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 one required parameter, no output schema, and full annotation coverage, the definition supplies the return shape and null conventions that would otherwise be missing. Only the semantics of the 'sprints switched on' flag remain unexplained.

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% for the single roadmapId parameter, so the schema fully documents it; the description only implies roadmap scoping without adding constraints or format detail. Baseline 3 is appropriate when the schema does the heavy lifting.

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 names the resource (a roadmap's sprints and custom markers) and the ordering (by start date), and it enumerates the returned fields, so an agent knows exactly what the call produces. It does not differentiate from siblings such as get_roadmap or list_snapshots, keeping it short of a 5.

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?

There is no explicit when-to-use or when-not-to-use guidance and no named alternative; the only cue is the required roadmapId, which implies roadmap-scoped listing. An agent must infer that get_roadmap or list_snapshots serve adjacent needs.

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