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

Annotations already declare destructiveHint=true and openWorldHint=true, so the safety profile is partly covered. The description adds important behavioral context: setting status to ACTIVE starts sending emails and requires explicit account-holder confirmation. It does not explain the side effects of pause, stop, or archive, so it stops 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?

The description is two tight sentences with the key consequence of ACTIVE front-loaded. The leading title repetition is slightly redundant but does not undermine the conciseness.

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 an output schema and annotations covering safety and openness, the description provides enough context for an agent to invoke the tool correctly, especially around ACTIVE confirmation. The main gap is the lack of guidance relative to sibling archive/update tools.

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 schema already documents id, status, confirm, and workspace_id. The description reiterates the ACTIVE/confirm relationship but adds little semantic detail beyond what the schema provides.

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 gives a clear verb and resource and enumerates the four target statuses (start, pause, stop, archive). It does not explicitly distinguish this tool from sibling tools such as archive_sequence or update_sequence, which limits it to a 4 rather than 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?

The description implies when to use the tool by listing status transitions and notes the special confirmation requirement for ACTIVE. However, it does not state when to use this tool instead of archive_sequence or update_sequence, nor does it describe exclusions or prerequisites beyond the ACTIVE confirmation.

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