Ethanfel/ComfyUI-Prompt-Calibrator
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Add describe (first-pass) mode to the judge node

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New mode on QwenVLImageJudge: 'describe' looks at the reference alone and returns
a prompt-ready caption + per-axis target spec to seed the very first prompt (the
generator has nothing to reproduce yet). 'compare' is the existing ref-vs-gen
scoring. generated_image is now optional (required only for compare); shared
generation refactored into _generate_from_messages; third output renamed
diff_analysis -> analysis (mode-agnostic). agent_bridge gains --mode (describe
needs no receptor/prompt); added workflow_describe_api.json. Docs updated with the
first-pass bootstrap step. Fixed error-return arity to 5-tuple.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Ethanfel
2026-06-26 23:04:09 +02:00
parent 959ec70065
commit c7ef756a71
6 changed files with 211 additions and 47 deletions
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docs/AGENT_LOOP.md
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@@ -80,7 +80,12 @@ not sampler noise; vary the seed only once near target. Stop at `overall_score
## Setup checklist
1. Run ComfyUI with `--listen` (so the bridge can POST). Install this node pack.
2. Build a workflow with: `CalibratorPromptReceptor` → (Prompt-Builder formatting, optional) → T2I → `QwenVLImageJudge` (feed the **reference** image into `reference_image`, the T2I output into `generated_image`).
3. Set the Judge's `report_dir` to a known path; pass the same path as `--analysis-dir`.
4. Export the workflow in **API format** (`workflow_api.json`).
5. Drive it from the agent with `agent_bridge.py`, once per iteration.
2. **First pass:** run the describe workflow (`LoadImage` → `QwenVLImageJudge` with `mode=describe`,
no T2I) once: `agent_bridge.py --mode describe --workflow workflow_describe_api.json`. The
`caption` it returns is the seed prompt; the `axes` are the seed axis_state.
3. **Compare loop:** build a workflow with `CalibratorPromptReceptor` → (Prompt-Builder formatting,
optional) → T2I → `QwenVLImageJudge` (mode `compare`; feed the **reference** into
`reference_image`, the T2I output into `generated_image`).
4. Set the Judge's `report_dir` to a known path; pass the same path as `--analysis-dir`.
5. Export each workflow in **API format**.
6. Drive it from the agent with `agent_bridge.py`, once per iteration (describe once, then compare in a loop).