> ## Documentation Index > Fetch the complete documentation index at: https://comfyui-mcp.artokun.io/docs/llms.txt > Use this file to discover all available pages before exploring further. # Claude Code Plugin > comfyui-mcp is a full Claude Code plugin: 42 AI skills, 11 slash commands, 4 autonomous agents, and 3 hooks on top of the 38 MCP tools — expert ComfyUI knowledge that grows with every release. `comfyui-mcp` isn't just an MCP server — it ships as a complete **Claude Code plugin**. Installing the plugin gives Claude expert, model-specific knowledge about ComfyUI so it picks the right sampler, CFG, resolution, and model files without trial and error. ```bash theme={null} # In Claude Code /plugin marketplace add artokun/comfyui-mcp /plugin install comfy ``` ## 42 AI skills — and growing Skills are curated knowledge documents Claude loads on demand. Each model family gets generation parameters, node graphs, curated model download URLs, and failure-mode guidance: | Skill | What Claude learns | | ---------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `flux-txt2img` | Flux.1 Dev/Schnell + Flux 2 Klein — BF16 vs FP8 pitfalls, dual-CLIP wiring, VAE selection | | `wan-t2v-video` / `wan-flf-video` | WAN 2.x text-to-video and first-last-frame workflows | | `wan-scail-replacement` | SCAIL-2 in-video character replacement — reference-framing→scale rule, tuning and compositing pitfalls | | `ltxv2-video` | LTX-2.3 (and LTX-2 19B) — GGUF UNet, distilled model, camera-control LoRAs, two-stage upscaling, kornia fix | | `minimax-h3-video` | MiniMax H3 (Hailuo) local T2V/I2V/R2V — Comfy-Org INT8, turbo LoRAs, 15 s stereo clips; cites MiniMax's official prompting guides | | `qwen-txt2img` / `qwen-image-edit` | Qwen-Image generation and instruction-based editing | | `z-image-txt2img` | Z-Image Turbo workflows | | `ideogram-ultra` | Ideogram 4 — open-weight text-to-image, area prompting, logos / posters / readable text | | `ernie-image` | ERNIE-Image — fast text-to-image, precise multilingual text rendering, runs on under 8 GB VRAM | | `anima-base` | ANIMA 1.0 — \~2B anime/illustration model, Danbooru tags + natural language, anime inpainting, under 6 GB VRAM | | `anima-lora-trainer` | Train custom anime LoRAs — kohya `sd-scripts` Gradio trainer, under 6 GB VRAM | | `ai-toolkit-trainer` | Train custom WAN 2.2 + Z-Image LoRAs (people / styles / motion) — ostris AI-Toolkit, local or RunPod | | `installer-packs` | Use, build, and derive one-command installer packs — and invite users to contribute new packs upstream | | `panel-node-pack-sync` | Keep the sidebar panel node-pack in step with the orchestrator after an update — version-mismatch detection, a version pin that is warned about rather than overridden, and a sync whose result is re-read from disk | | `model-compatibility` | Which VAE/CLIP/text-encoder pairs with which architecture — the #1 source of broken workflows | | `model-registry` | Curated download URLs + target dirs for every model the skills reference — grows each release | | `civitai` | Native Civitai discovery → local download/wire/generate loop via built-in `download_model` `action:"search_civitai"` (no key, no extra server); the official [Civitai MCP](https://mcp.civitai.com/mcp) is an optional community-surface add-on, not bundled | | `comfyui-core` | Queue, history, and API semantics | | `comfyui-node-registry` | Authoring + publishing custom node packs to the Comfy Registry | | `comfyui-frontend-extensions` | v1/v2 frontend extension authoring (sidebar tabs, widgets) | | `rgthree` | Configuring rgthree-comfy — Fast Groups Bypasser/Muter group toggles (frontend-only nodes absent from `/object_info`, set via node PROPERTIES not widgets), Power Lora Loader stacking, Context buses | | `lora-manager` | ComfyUI-LoRA-Manager from the panel — add `LoRA Text Loader (LoraManager)` (STRING `lora_syntax`); `Lora Loader (LoraManager)` and other AUTOCOMPLETE\_TEXT\_\* nodes wait 5s then refuse even when the pack is healthy | | `director` | Multi-shot scene direction for video pipelines | | `prompt-engineering` | Architecture-specific prompting (natural language vs tags) | | `troubleshooting` | OOM, missing nodes, version drift — diagnosis trees | | `comfyui-launch-flags` | The VRAM/attention/cache/perf launch-flag matrix — `--reserve-vram`, `--novram`+`--cache-none`, `--use-sage-attention` vs `--use-pytorch-cross-attention` (Z-Image), plus Blackwell/RTX 5000 accel-stack notes | New skills land with each release — generated from popular registry packs via the built-in `list_packs` tool (`action: "generate_skill"`), then human-curated. **Try the knowledge before wiring anything up** — every skill is a plain markdown file, useful on its own. The most broadly applicable one is [`prompt-engineering`](https://github.com/artokun/comfyui-mcp/blob/main/plugin/skills/prompt-engineering/SKILL.md) — CLIP's 77-token limit and `BREAK` chunking, weight syntax, and per-architecture strategy (why Flux wants natural language and no negative prompt while SD1.5 wants tags). Read it in the browser, or paste it into any agent's context as a system prompt — no ComfyUI, MCP, or install required. When you do connect the full plugin, agents load the same files automatically (`list_packs` with `action: "skill_read"`). ### Civitai search — built in `download_model` `action:"search_civitai"` searches Civitai natively (public REST API, no key, no extra server): keyword + `types` + `base_models` filters ("a **Flux** LoRA"), SFW-only by default, and every hit returns the `model_version_id` that `action:"download_civitai"` takes directly — plus the model's **trigger words** for the prompt. Because it's a first-class tool it works on **every backend**, including small local models behind the compact router. The `civitai` skill teaches the full discovery → download → generate handoff. **Optional API key.** Search needs none. `CIVITAI_API_TOKEN` unlocks gated/early-access downloads and gated search results — one variable powers both search and download. **Optional: the official Civitai MCP.** For the community surface beyond search→install (browsing example images + their generation params, posting, collections), pair Civitai's [official remote server](https://mcp.civitai.com/mcp) — no longer auto-bundled, add it once: ```bash theme={null} claude mcp add --transport http civitai https://mcp.civitai.com/mcp \ --header "Authorization: Bearer YOUR_CIVITAI_API_KEY" ``` ## 11 slash commands `/comfy:gen` (generate from a prompt), `/comfy:debug` (diagnose a failed workflow), `/comfy:install` (install node packs), `/comfy:viz` (workflow → Mermaid), `/comfy:batch`, `/comfy:compare`, `/comfy:convert`, `/comfy:gallery`, `/comfy:recipe`, `/comfy:director`, `/comfy:node-skill`. ## 4 autonomous agents * **comfy-explorer** — deep-dives a node pack's source to document it * **comfy-researcher** — problem statement → ranked pack recommendations * **comfy-debugger** — root-causes failed workflows from history + logs * **comfy-optimizer** — VRAM and speed tuning for a given GPU ## The sidebar panel — no API keys The sidebar panel ships as its own pack, **on the Comfy Registry and in ComfyUI-Manager as `comfyui-agent-panel`** — search for it there and pick **Latest**, not Nightly. Full guide: [Sidebar Panel](./panel). The [comfyui-mcp-panel](https://github.com/artokun/comfyui-mcp-panel) sidebar runs an autonomous agent on your **Claude subscription** (no per-token API billing). Install the pack, open the Agent tab, and click **Connect** — it starts the [panel orchestrator](./configuration) on demand; ask it for an image, a workflow, or a change and it works against your ComfyUI. ## Hooks Three hooks keep generation sessions tight: **VRAM pre-flight checks** before enqueueing a workflow, **job-completion notifications**, and **save warnings** before destructive operations.