Discover and cache all installed ComfyUI models, custom nodes, and system capabilities. Works online (API queries) and offline (directory scanning). Use before generating workflows to verify available resources.

ComfyUI Inventory Skill Discovers what's installed in the user's ComfyUI instance and caches results for workflow validation. Purpose Every workflow generation MUST be preceded by an inventory check. This prevents: Referencing models that aren't downloaded Using nodes that aren't installed Exceeding VRAM limits Two Discovery Modes Online Mode (ComfyUI API Running) Query the live server for authoritative information. 1. System info: Extracts: GPU name, total VRAM, free VRAM, ComfyUI version. 2. Installed nodes: Returns all registered node classes with their input/output specifications. 3. Installed models (per type): Offline Mode (Directory Scan) When ComfyUI isn't running, scan the filesystem directly. Requires : ComfyUI installation path (e.g., C:\ComfyUI ) Scan directories: Custom node detection : List directories under custom nodes/ . Each directory name corresponds to a node package (e.g., ComfyUI IPAdapter plus , ComfyUI Impact Pack ). Cache Format Save results to state/inventory.json : Workflow Validation Given a workflow JSON, validate against inventory: Common Node to Package Mapping Node Class Package ApplyInstantID ComfyUI InstantID IPAdapterUnifiedLoader ComfyUI IPAdapter plus FaceDetailer ComfyUI Impact Pack ReactorFaceSwap ComfyUI ReActor AnimateDiffLoaderWithContext ComfyUI AnimateDiff Evolved VideoHelper ComfyUI VideoHelperSuite ControlNetApply comfyui controlnet aux UltimateSDUpscale ComfyUI UltimateSDUpscale VHS ComfyUI VideoHelperSuite RIFE ComfyUI Frame Interpolation Cache Freshness Cache is valid for 1 hour during active sessions Invalidate cache when user installs new models/nodes Force refresh: scan inventory.ps1 or API re query Integration Called by comfyui workflow builder before generating workflows Called by comfyui character gen (via agent wrapper) for model selection Called by comfyui troubleshooter when diagnosing missing model errors Results stored in state/inventory.json for all skills to reference

comfyui-inventory