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

Annotations declare it is not read-only and not idempotent, so the description's value is elsewhere: it discloses that user-authored passages are preserved and prior text is snapshotted, which reassures the agent that regeneration is non-destructive to custom edits. It doesn't mention cost, latency, or confirmation needs, keeping 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?

Two short sentences, action first, behavioral caveat second. Every clause carries information and nothing is padded.

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?

An output schema exists, so return values need no explanation, and annotations cover the mutation/safety profile. The description covers the mutation's content effects (preservation, snapshot); the main missing piece is routing relative to the propose-playbook-change sibling.

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?

With a single optional parameter at 100% schema coverage, the schema already fully documents workspaceId, including the single-workspace omission rule. The description adds nothing about the parameter, 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 ('Regenerate the workspace playbook') and enumerates the source inputs (campaigns, ICPs, personas, company context). It does not name the closely related sibling campaignstack_propose_workspace_playbook_change, so the agent must infer the distinction between regenerating and proposing.

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?

No when-to-use or when-not-to-use guidance is given. A sibling named campaignstack_propose_workspace_playbook_change is the obvious alternative for playbook changes, yet the description never explains when to refresh versus propose.

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