ht_clip_coupon

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

Annotations already declare idempotent=true, destructive=false, readOnly=false, and openWorld=true. The description adds that the coupon applies at checkout or in store and that clipping can be undone via a named sibling, which is useful behavioral context beyond the annotations. It does not cover auth or failure modes, but that is acceptable given annotation coverage.

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 short sentences: the first states the action and effect, the second provides the undo route. No redundant wording, and the key operation is front-loaded.

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 one-parameter, annotation-rich mutation with no output schema, the description supplies the core action, effect, and undo alternative. It is complete enough to call correctly, with only minor optional details such as permission requirements absent.

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 the only parameter's description already says couponId comes from ht_list_coupons. The description adds no syntax, format, or validation detail beyond the schema, so the baseline 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 'load' plus resource 'Harris Teeter e-VIC digital coupon' and destination 'your card'. It distinguishes from the undo sibling by naming ht_unclip_coupon, so an agent can tell this is the apply 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?

It states the effect at checkout or in store and explicitly names ht_unclip_coupon as the undo path, giving clear context for use. It does not spell out when-not conditions, but for a single-purpose clip tool no competing sibling exists.

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