create_now_assist_skill

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

Annotations already indicate non-read-only and non-idempotent behavior. The description adds the requirement of NOW_ASSIST_ENABLED and WRITE_ENABLED, which is beyond the annotation data and helps the agent understand necessary preconditions for the operation.

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?

Single sentence with no filler, front-loads the purpose and prerequisites. Every word earns its place.

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 full schema coverage, annotations, and lack of output schema, the description adequately covers the tool's purpose and constraints. It could explicitly mention that this creates a persistent definition, but that's implied; slightly under-specified regarding return value, but acceptable.

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?

Input schema provides 100% coverage of all 6 parameters with individual descriptions. The tool description adds no additional parameter semantics, so the baseline score of 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?

The description uses a specific verb+resource pattern ('Create a Now Assist skill definition') and clearly distinguishes from sibling tools like get_now_assist_skill and list_now_assist_skills by indicating the creation action.

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 provides clear context by listing prerequisite flags (NOW_ASSIST_ENABLED + WRITE_ENABLED), but it does not explicitly mention alternative tools or when not to use it. The creation verb implies the usage context.

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