This skill covers writing a ComfyUI custom node pack and publishing it to the **Comfy Registry** (registry.comfy.org), the public catalog that powers ComfyUI-Manager. For *using* existing nodes in workflows, see the `comfyui-core` skill instead.

Civitai ships an **official remote MCP server** — discovery and the whole community surface — and comfyui-mcp owns the **local machine**: download, wire, queue, tag. They compose. comfyui-mcp deliberately does **not** proxy or re-expose Civitai's tools; MCP clients connect to both servers at onc

> **Render *completes* but looks WRONG** (artifacts, wrong subject/pose/color, a > ControlNet/mask/LoRA not taking, a refiner degrading it)? That's not an error — > use the **debug-render** skill (`read_skill("debug-render")`): localize the bad > stage with run-to-node (`panel_run` `to_node_id`) b

The **v2 extension API** is the published npm package `@comfyorg/extension-api`. It replaces the legacy `app.registerExtension()` / `nodeType.prototype` monkey-patching model with a typed, tree-shakeable, import-based API.

When a final asset looks **wrong** (not when it errors), don't re-roll the whole graph and hope. **Localize the fault**: render only as far as one stage and LOOK at what that stage actually produces. The wrong-looking output is downstream of a *first* bad step — find that step, fix it there, and e

`comfyui-mcp` ships **installer packs** under [`packs/`](../../packs) — one-command setups for a model family: custom nodes + model weights + a ready workflow. Each pack is driven by a single `manifest.yaml` (a `ComfyManifest`, the same shape the `apply_manifest` tool consumes), so one source of t

`LTXDirector` (pack: **WhatDreamsCost-ComfyUI**, category `WhatDreamsCost`) is a video *timeline editor* node. Its on-canvas UI has **Add Image**, **Add Text** and **Add Audio** buttons.

Keep the ComfyUI sidebar panel node-pack (comfyui-agent-panel) in step with the orchestrator after comfyui-mcp updates. Use this whenever the orchestrator was just updated (install_comfyui (action:"self_update"), npm i -g comfyui-mcp, a new version in the ENVIRONMENT line), when a panel/bridge command fails in a way that smells like version drift ("panel is too old", a graph_/ui_ command the panel doesn't implement, a feature that works in the docs but not in the sidebar), or when the user asks to update/pin/unpin the panel. It checks the installed panel version against what THIS orchestrator build needs, RESPECTS an explicit version pin (warn-only, never move a pinned user), offers a clear way to unset the pin, runs the sync through the verified install_comfyui(action:'panel') path, and reports the version RE-READ from disk. Never claim a sync that did not happen.

SCAIL-2 (zai-org, on WAN 2.1 14B) replaces the person in a driving video with a character you supply as a reference image — end-to-end, with no pose maps, and with multi-character support. It is the successor to WAN Animate / motion transfer for the "swap the subject, keep the motion" job. The off