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

Annotations already declare readOnly, idempotent, non-destructive, and closed-world, so the safety profile is covered. The description adds a useful note that it works 'without a locally installed skill,' but says nothing about the return format (prose vs. structured) for a tool with no output schema.

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 compact sentences with the content list front-loaded and the availability note trailing. No filler, though the second sentence is somewhat niche in value.

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?

For a simple read-only guide fetch with one enum param and full annotation coverage, the description gives enough for an agent to select and invoke it correctly. The only minor gap is the absence of any return-format expectation, which no output schema supplies.

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?

Although schema coverage is 0%, the single enum is self-explanatory and the description maps values to meaning, notably clarifying that 'content' covers listings/screenshots/reviews and 'start' means getting started. This meaningfully improves on the bare enum tokens.

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 states a specific verb (read) and resource (official OneStore workflows) and enumerates the four content areas. It is clearly distinguishable from the data-fetching siblings like get_app and list_listings, though it doesn't explicitly name an alternative to route away from.

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?

Usage is implied by the topic list ('getting started', 'troubleshooting'), and the availability note hints at context, but there is no explicit when-to-use/when-not or pointer to which sibling handles the actual data operations versus reading guidance.

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