[Partner Nodes] feat(Wan): add Wan 3.0 video generation nodes - #15843
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📝 WalkthroughWalkthroughAdded Wan 3 reference-to-video and image-to-video API nodes. The nodes validate prompts, media counts, durations, and request limits. They upload media, submit tasks, poll Wan 3 statuses, and return generated videos. They support configurable output settings, audio, prompt extension, watermarking, and pricing. Both nodes are registered in 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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Inline comments:
In `@comfy_api_nodes/nodes_wan.py`:
- Around line 1829-1838: Update the reference-video duration accumulation loop
around validate_video_duration and get_duration to stop swallowing duration-read
failures. Remove the broad silent exception handling, or catch only the specific
expected exception and re-raise it as a clear validation error; ensure failures
do not contribute zero seconds and bypass the 15-second aggregate and combined
duration checks.
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📓 Path-based instructions (6)
**/*
📄 CodeRabbit inference engine (AGENTS.md)
**/*: Keep changes small, direct, and limited to the narrowest necessary code path and smallest number of files.
Prefer practical fixes, minimal dependencies, and existing repository patterns; remove obsolete, dead, unreachable, or unused code.
Preserve existing APIs, node names, model-loading behavior, file layout, and workflow compatibility unless replacement is explicitly intended.
Core ComfyUI must not add outbound internet requests, telemetry, tracking, reporting, remote configuration, or background network activity. User-authorized model downloads are limited to the requested artifact and must exclude telemetry and unrelated metadata.
Files:
comfy_api_nodes/nodes_wan.py
**/*.py
📄 CodeRabbit inference engine (AGENTS.md)
**/*.py: Keep state and capability flags on the object that owns the behavior. Prefer explicit parent-owned attributes over probing child objects withgetattr; use child checks only when the child owns the delegated behavior.
Preserve shared method signatures, argument order, return shapes, side effects, and error behavior unless every affected caller and interface is intentionally updated.
Do not add unused compatibility parameters, flags, attributes, constructor options, or model-specific options to shared helpers; keep one-off behavior at the integration boundary.
Normalize third-party return conventions at integration boundaries so core code receives the expected type and shape; avoid undocumented caller-side unwrapping.
Do not addtorch.no_grad,torch.inference_mode, or inference-mode wrappers. Do not add model freeze/unfreeze toggles; only disable globally enabled inference mode when a training path requires gradients.
Remove inference-only training behavior such as dropout while preserving checkpoint and state-dict compatibility; usenn.Identitywhen deleting a module would alter keys or ordering.
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Do not add workarounds for unsupported library versions, especially PyTorch exception-and-float-cast retries, unless a comment names the exact versions still requiring them.
Let unsupported model formats, invalid quantization metadata, and bad states fail with clear errors instead of silently degrading output.
Match local style, keep comments sparse and useful, and remove comments that merely restate obvious code.
Treat dtype, device placement, VRAM use, and offloading as correctness concerns across CPU, CUDA, ROCm, MPS, DirectML, XPU, NPU, and low-VRAM environments.
Prefer existing ComfyUI and Comfy Kitchen operations, quantization helpers, cast/offload helpe...
Files:
comfy_api_nodes/nodes_wan.py
**/*.{py,json}
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Files:
comfy_api_nodes/nodes_wan.py
**/*.{py,md,txt,json}
📄 CodeRabbit inference engine (AGENTS.md)
Keep warning and info messages short and actionable, remove noisy or misleading logging, and make documentation edits concise, factual, and tied to changed behavior.
Files:
comfy_api_nodes/nodes_wan.py
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Flag PR changes that violate AGENTS.md even when the code is otherwise functional.
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Files:
comfy_api_nodes/nodes_wan.py
comfy_api_nodes/**
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comfy_api_nodes/**: Third-party API integration nodes. Focus on:
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Files:
comfy_api_nodes/nodes_wan.py
🧠 Learnings (5)
📚 Learning: 2026-08-12T15:35:37.339Z
Learnt from: bigcat88
Repo: Comfy-Org/ComfyUI PR: 15471
File: comfy_api_nodes/nodes_minimax.py:1084-1113
Timestamp: 2026-08-12T15:35:37.339Z
Learning: In Python partner API nodes under comfy_api_nodes/, keep each node’s execute body self-contained, including input validation and the submit → poll → status-check → download flow. Do not extract duplicated validation into shared helpers when limits are endpoint-specific or model-version-specific, because vendor constraints may diverge; preserve per-node readability, independent editability, and a limited blast radius.
Applied to files:
comfy_api_nodes/nodes_wan.py
📚 Learning: 2026-08-11T17:33:31.657Z
Learnt from: bigcat88
Repo: Comfy-Org/ComfyUI PR: 15501
File: comfy_api_nodes/nodes_ltxv.py:213-217
Timestamp: 2026-08-11T17:33:31.657Z
Learning: When reviewing ComfyUI nodes that use IO.DynamicCombo, account for schema expansion by comfy_api/latest/_io.py::DynamicCombo._expand_schema_for_dynamic. Prompt validation in execution.py validates each resulting IO.Combo value against extra_info["options"] and rejects invalid values with value_not_in_list before execute() runs. Review validation logic against only the reachable option domain for closed IO.Combo.Input lists inside a DynamicCombo, unless the node provides another input path that bypasses prompt validation.
Applied to files:
comfy_api_nodes/nodes_wan.py
📚 Learning: 2026-05-07T17:59:26.050Z
Learnt from: bigcat88
Repo: Comfy-Org/ComfyUI PR: 13753
File: comfy_api_nodes/nodes_gemini.py:1148-1157
Timestamp: 2026-05-07T17:59:26.050Z
Learning: In ComfyUI node implementations under `comfy_api_nodes/`, when building JSONata expressions that use `IO.PriceBadge` for `$lookup` against a price map keyed in lowercase, do not add an explicit `$lowercase()` around widget values (e.g., combo options like "1K", "2K", "4K"). The ComfyUI frontend automatically lowercases widget values before evaluating the JSONata expression, so the lookup keys will already match the lowercase map entries.
Applied to files:
comfy_api_nodes/nodes_wan.py
📚 Learning: 2026-08-04T18:49:57.785Z
Learnt from: bigcat88
Repo: Comfy-Org/ComfyUI PR: 15295
File: comfy_api_nodes/nodes_bfl.py:1037-1051
Timestamp: 2026-08-04T18:49:57.785Z
Learning: When consuming dictionaries produced by IO.Autogrow.Type, rely on their iteration order to match the configured template-slot order. This ordering is preserved by _expand_schema_for_dynamic, parse_class_inputs, and build_nested_inputs, so consumers should iterate the dictionary directly when processing dynamic slots.
Applied to files:
comfy_api_nodes/nodes_wan.py
📚 Learning: 2026-07-14T20:09:03.091Z
Learnt from: bigcat88
Repo: Comfy-Org/ComfyUI PR: 14928
File: comfy_api_nodes/nodes_sync_so.py:168-202
Timestamp: 2026-07-14T20:09:03.091Z
Learning: In the `comfy_api_nodes/` package, partner/API node `execute` implementations should keep the full submit → poll → status-check → download flow written inline within each node (even if similar logic appears across multiple nodes). This is an intentional repo convention to optimize per-node readability and independent editability, so during reviews you should generally not recommend refactoring this pattern into a shared helper function for these nodes (unless there’s a concrete correctness/security issue).
Applied to files:
comfy_api_nodes/nodes_wan.py
🔇 Additional comments (5)
comfy_api_nodes/nodes_wan.py (5)
60-93: LGTM!
1686-1813: LGTM!
1916-2067: LGTM!
2764-2765: LGTM!
37-40: 🗄️ Data Integrity & IntegrationNo issue found in the Wan 3 request models. The referenced fields exist, and
durationaccepts-1.> Likely an incorrect or invalid review comment.
Signed-off-by: Alexander Piskun <bigcat88@icloud.com>
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✅ Action performedComments resolved and changes approved. |
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API Node PR Checklist
Scope
Pricing & Billing
If Need pricing update:
QA
Comms