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

The description discloses that it reads .recipebooq/files.json and never touches the customer's own screens, which is helpful. However, it does not fully clarify side effects, whether it writes back to the manifest, or any authentication/payment behavior beyond the 'PAID' tag.

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 mostly concise and front-loads the core purpose. The final sentence is somewhat promotional but does not significantly detract from clarity.

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?

The description gives a general idea of what is returned ('only what moved') but lacks specifics about the output format or how the result should be used. Without an output schema, more detail would help make the tool fully self-explanatory.

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 schema has one required manifest parameter, and the description mirrors the schema text without adding extra detail about the expected structure or contents. Since schema coverage is complete, this is adequate but not enhanced.

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 clearly states the tool tells the customer what changed in their recipebooq files since export and hands back only the changed items. It distinguishes this from simply listing or installing components, though the 'update' in the name is slightly misleading because the tool appears to be read-only.

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?

It provides useful context by saying no share code is needed and that it works months later, and it mentions when a code edit is needed rather than a re-copy. However, it does not explicitly name sibling alternatives or state when not to use this tool.

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