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 real value beyond that: the required API-key scope `sprints:read` and a characterization of the returned data as daily snapshots. It doesn't cover pagination or time-range behavior, keeping it below a 5.

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 tight sentences, front-loaded with the what and followed by the when, with the auth scope appended compactly. No filler sentences.

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 one required parameter and no output schema, the description supplies the data shape and the auth scope an agent needs. The main residual gap is how the required sprintIdentifier should be formed and whether any time-window options exist.

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 67%: the account and workspace parameters are well documented in the schema, but sprintIdentifier has no description there, and the description only implies it via 'for the sprint'. The description adds no format or acceptance details (ID vs key vs name) for the required parameter, leaving a gap.

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 a specific verb (return chart data) and resource (sprint burndown/burnup), and clarifies the payload is daily snapshots of remaining vs completed work. That distinguishes it from sibling pm_get_sprint, which returns the sprint entity itself rather than time-series progress data.

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?

It states clear usage contexts — rendering burndown charts or auditing progress over time — which tells an agent when this tool is appropriate. It stops short of naming an explicit alternative or exclusion (e.g., use pm_get_sprint for metadata), so it's not quite top-tier.

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