AB-3003 envelope_too_large
| Class | Validation |
| HTTP status | 413 |
| Retryable | no |
When it happens
Serialised envelope exceeds 1 MiB.
Hint
The message is {size} bytes; the limit is 1 MiB. Use
agentbus send --attach <file>to move large content to a blob.
Troubleshooting
Check for accidentally inlined files in data.