38 lines
1.8 KiB
Markdown
38 lines
1.8 KiB
Markdown
# Change: Add GPT Image edit support
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## Why
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Official GPT Image editing uses `/images/edits` with a different request contract from text-to-image generation. The first GPT Image compatibility phase intentionally shipped only `/images/generations`; users now need image-to-image/edit support without replacing the existing Tuzi/basic compatibility fallback.
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## What Changes
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- Add an official GPT Image edit request schema for `/images/edits`.
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- Let image invocation planning prefer a request schema when the current request requires edit semantics.
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- Extend the image adapter request shape with lightweight edit fields while keeping `TaskType.IMAGE`.
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- Extend the GPT Image adapter to build official multipart edit requests from reference images.
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- Keep Tuzi/basic GPT Image compatibility on the existing default adapter path.
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- Add tests for generation-vs-edit routing, request bodies, and adapter selection.
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## Non-Goals
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- Do not add `TaskType.IMAGE_EDIT`.
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- Do not add a public `edit_image` MCP tool in this change.
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- Do not build full mask drawing UI in this change.
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- Do not convert all image providers to a common `image.generate` / `image.edit` abstraction.
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## Impact
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- Affected specs:
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- `provider-routing`
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- `image-generation`
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- Affected code:
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- `packages/drawnix/src/services/provider-routing/types.ts`
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- `packages/drawnix/src/services/provider-routing/invocation-planner.ts`
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- `packages/drawnix/src/services/provider-routing/settings-repository.ts`
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- `packages/drawnix/src/services/provider-routing/binding-inference.ts`
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- `packages/drawnix/src/services/provider-routing/endpoint-binding-inference.ts`
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- `packages/drawnix/src/services/model-adapters/types.ts`
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- `packages/drawnix/src/services/model-adapters/context.ts`
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- `packages/drawnix/src/services/model-adapters/gpt-image-adapter.ts`
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- `packages/drawnix/src/services/generation-api-service.ts`
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