Hey, thanks for the report. In Plan mode, code shouldn’t be written before your Build.
Similar reports: accepted answer here Plan gets executed even if I didn't ask for it and a Composer 1 variant Composer 1 agent edits files in Plan Mode instead of only proposing a plan
To help us fix this quickly, please send:
- The Request ID from chat at the time edits start (chat menu > Copy Request ID)
- Logs from Help > Toggle Developer Tools > Console
- Whether it reproduces on another model, for example Sonnet 4.5
I’ll escalate this as a regression. Once we have the data above, we’ll push a fix forward.