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

Annotations already declare the mutation/non-destructive/non-idempotent profile, and the description adds genuinely new context: the required API-key scope `sprints:write`. It does not warn that repeated calls may create duplicates (non-idempotent) or state what object is returned, which keeps it short of 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?

Front-loaded with the action and scope, then short constraint and auth sentences; no filler. Minor redundancy by echoing schema constraint values already documented per-field.

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 6-parameter create tool with no output schema, the definition covers inputs and auth scope but never indicates what comes back (e.g., the new group's identifier) or how to verify success — information an agent would otherwise have to discover by trial. Adequate but with a clear gap.

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 the baseline is 3. The description restates the same constraints already in the schema for name (max 100), description (max 2000) and defaultDurationDays (1–90) without adding new meaning, and it says nothing about spaceIdentifier, account, or workspace.

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 and resource — 'Create a sprint group inside a space' — which is distinct from the sprint-level siblings like pm_create_sprint and pm_list_sprint_groups. It does not, however, explicitly say how it differs from creating a sprint or why a group is needed, so an agent must infer the containment hierarchy.

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 only implied via the required spaceIdentifier and the 'inside a space' phrasing; there is no explicit when-to-use or when-not-to-use statement, and no routing to pm_create_sprint or pm_list_sprint_groups. An agent can guess this is the container step before creating sprints, but the description never says so.

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