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

No annotations are supplied, so the description carries the full burden. "Get" implies a read-only, side-effect-free operation, but the description does not state what "enabled" means, how many style guides are merged or in what order, or how conflicts between the brand prompt and style guides are resolved. Output schema exists, so return shape does not need to be described here.

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?

A single front-loaded sentence with no filler, so every word earns its place. It is, however, terse to the point of omitting the merge semantics that would make the definition self-sufficient.

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 no parameters, an output schema, and a simple read shape, the description is nearly sufficient. The remaining gap is behavioral: it never explains how the combination is composed or what "enabled" implies, which an agent would need in order to trust the result.

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?

The tool takes zero parameters, which is the baseline-4 case. Nothing in the schema needs compensating for, and the description correctly implies the workspace context is implicit rather than passed in.

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?

"Get the workspace brand prompt combined with its enabled style guides" names a specific verb (get) and a specific composite resource (brand prompt + enabled style guides). This implicitly separates it from siblings like get_brand_voice, get_style_guides, and list_style_guides because it returns a merged artifact rather than the individual pieces, though it never says so explicitly.

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 word "combined" hints that this is the tool to use when one assembled prompt is wanted rather than the raw brand voice or style guide list. However, no when-to-use or when-not-to-use guidance is given, and none of the obvious alternatives (get_brand_voice, get_style_guides, list_style_guides) are named as fallbacks.

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