# Inbox `reply` Test Plan Index

## Case Files

| Case Slug | File | Coverage Note |
| --- | --- | --- |
| `reply-adds-answer-message` | [reply-adds-answer-message.md](./reply-adds-answer-message.md) | appends default `answer` message to an existing non-terminal thread |
| `reply-supports-control-kind` | [reply-supports-control-kind.md](./reply-supports-control-kind.md) | supports explicit `--kind control` reply message |
| `reply-attaches-artifact` | [reply-attaches-artifact.md](./reply-attaches-artifact.md) | appends reply message with artifact payload |
| `reply-rejects-invalid-payload-json` | [reply-rejects-invalid-payload-json.md](./reply-rejects-invalid-payload-json.md) | rejects malformed `--payload-json` input |