Utility endpoint reference

These are workflow utility candidates from the falgen workflow notes. Verify availability with genmedia models --endpoint_id <id> --json or search, then inspect schema before use.

Image resize and transform

• workflowutils/resize-image: resize to explicit dimensions.
• workflowutils/resize-to-max-pixels: resize while preserving aspect ratio.
• workflowutils/crop-image: crop with percentage-based coordinates.
• workflowutils/image-size: return width and height.
• workflow-utilities/compress-image: compress and optionally resize.

Image compositing and layout

• workflowutils/composite-image: layer images together.
• workflow-utilities/overlay-image: overlay with position, scale, opacity, and stroke.
• workflow-utilities/concat-image: concatenate images horizontally or vertically.
• workflow-utilities/image-grid: create a grid from multiple images.
• workflow-utilities/add-text-to-image: add controlled text after generation.

Image conversion and masks

• workflowutils/rgba-to-rgb: convert transparent image to RGB.
• workflow-utilities/split: split multiple images into individual outputs.
• workflow-utilities/merge: merge multiple images into one output array.
• workflowutils/sam-hq: segmentation masks.
• workflowutils/invert_mask: invert a mask.
• workflowutils/blur_mask: soften mask edges.
• workflowutils/grow_mask: expand mask region.
• workflowutils/shrink_mask: contract mask region.
• workflowutils/transparent-image-to_mask: create a mask from alpha.

Detection and safety

• workflowutils/teed: edge detector.
• workflowutils/canny: Canny edge detector.
• workflowutils/image-preprocessors-canny: alternate Canny endpoint.
• workflowutils/face: face detection or face processing.
• workflowutils/brand-checker: brand detection check.
• workflowutils/llm-nsfw-checker: text safety check.

Video utilities

• workflow-utilities/overlay-video: overlay one video on another.
• workflow-utilities/setpts-video: change playback speed. Keep within schema bounds.
• workflow-utilities/add-subtitles-to-video: add provided subtitles.
• workflow-utilities/auto-subtitle: transcribe and add karaoke-style subtitles.
• workflowutils/join-audio-video: combine audio and video.
• workflow-utilities/video-to-gif: convert video segment to GIF.
• workflow-utilities/gif-to-video: convert GIF to video.

Audio utilities

• workflow-utilities/extract-audio: extract audio from video.
• workflow-utilities/split-audio: split by timestamps.
• workflow-utilities/merge-audio: merge files with optional gaps.
• workflow-utilities/amix-audio: mix streams with weights and normalization.

Text utilities

• workflow-utilities/merge-text: merge strings with a separator.
• workflow-utilities/split-text: split text by delimiter.
• workflowutils/text-concat: concatenate text, prompts, or trigger strings.

Common utility chains

Background replacement:

source image -> sam-hq mask -> invert or refine mask -> new background -> composite-image

Social resize:

master asset -> resize 1:1 -> resize 9:16 -> compress-image

Subtitled video:

video -> auto-subtitle -> optional setpts-video -> final download

Product catalog:

product image -> segment -> composite clean background -> image-grid -> compress