feat(media): image_edit remove-background preset (v0.139.0)#238
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Adds operation:"remove-background" to image_edit — cuts out the subject (transparent PNG) via Atlas youchuan/v8.1/remove-background, no prompt needed. Rides the same governed generateImage submit+poll; operation takes precedence over scale/prompt. Verified live (transparent PNG). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
image_editgains a namedremove-backgroundpreset. Agents can now cut out an image's subject:No prompt needed → returns a transparent PNG saved as a new Library image (source untouched).
How
youchuan/v8.1/remove-backgroundmodel (IMAGE-TO-IMAGE,generateImage+ singleimage).ImageEditRequestgainsoperation?: 'remove-background'. InAtlasBackend.editImage, mode precedence isoperation→scale(upscale) →prompt(edit); all three ride the samesubmitAndPoll, only the body differs. Bad-model fallback still applies.terminal.editImage(op label/title "Background removed", auditedop=remove-background),POST /api/agent/image/edit, and theimage_editMCP tool (operationenum, validation no longer requires a prompt when a preset/scale is set).Governance
Classified
image.editwith a cost estimate (money-cap applies), auditedimage.edited. No policy/schema change.Verified
operation:"remove-background"→youchuan/v8.1/remove-background→ 822 KB transparent PNG (extpng).typecheck,build,test:governance(68/68) pass.Atlas-only. New route field + MCP tool change → server restart + session relaunch to take effect.
🤖 Generated with Claude Code