# Inbox `send` Test Plan Index

## Case Files

| Case Slug | File | Coverage Note |
| --- | --- | --- |
| `send-creates-new-thread` | [send-creates-new-thread.md](./send-creates-new-thread.md) | creates a pending thread with an initial task message |
| `send-appends-message-to-existing-thread` | [send-appends-message-to-existing-thread.md](./send-appends-message-to-existing-thread.md) | appends a message to an existing non-terminal thread |
| `send-reads-body-from-body-file` | [send-reads-body-from-body-file.md](./send-reads-body-from-body-file.md) | reads message body from a file path |
| `send-attaches-artifact-with-metadata` | [send-attaches-artifact-with-metadata.md](./send-attaches-artifact-with-metadata.md) | persists artifact path, kind, and metadata on send |
| `send-rejects-invalid-payload-json` | [send-rejects-invalid-payload-json.md](./send-rejects-invalid-payload-json.md) | rejects malformed payload JSON with `invalid_input` |
| `send-rejects-invalid-artifact-metadata-json` | [send-rejects-invalid-artifact-metadata-json.md](./send-rejects-invalid-artifact-metadata-json.md) | rejects malformed artifact metadata JSON |