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

Annotations already cover the safety profile (readOnly=false, destructive=false), so the description does not need to restate mutation risk. It adds persistence/reusability semantics ('re-run or schedule'), but does not disclose overwrite behavior, conflict handling, or permission requirements. With annotation coverage, this is acceptable but not rich.

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 front-loaded with purpose and ends with concrete usage triggers. However, it duplicates the full 13-item template_key enum that already exists in the schema, adding length without much new information for an agent.

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?

Given the 100% schema coverage and no output schema, the description supplies the missing usage context: when to save a playbook, how to choose template vs custom steps, and how scope works. It omits explicit mention that name is required, but that is fully documented in the schema.

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% and each parameter already has a description. The tool description adds value by explaining the relationship between template_key and scope, presenting custom steps as an alternative, and giving a concrete scope example. This goes beyond rehashing the schema.

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 uses a specific verb and object ('Save a reusable per-model research workflow') and clearly identifies the playbook resource. The template/custom-step distinction and trigger phrases make its role obvious and distinguish it from siblings like playbook_list, playbook_run_now, and playbook_schedule.

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 gives explicit trigger phrases ('save this as a weekly check', 'make a playbook for ...', 'automate this research') and explains the template-versus-custom-steps choice. It does not explicitly state exclusions or name alternatives, but the usage context is clear enough for agent selection.

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