vidu-skill（维杜技能）

Vidu Video and Image Generation Skill

Generate AI videos and images with Vidu via vidu-cli — text-to-image, text-to-video, image-to-video, start-end frame, reference-based generation, and material elements, up to 1080p/2K/4K.

Execution model: use vidu CLI

All execution is done via the vidu-cli CLI tool. Parameters are CLI flags (not raw JSON bodies).

Environment variables

• VIDU_TOKEN (required) — Vidu API token
• VIDU_BASE_URL (optional) — Default https://service.vidu.cn (mainland China); use https://service.vidu.com for overseas
• VIDU_DEBUG (optional) — Set to 1 to print full response body to stderr for debugging

Stdout contract

• Every command prints one line of JSON to stdout.
• Success: {"ok": true, "trace_id": "...", ...} — exit code 0
• Failure: {"ok": false, "error": {"type": "...", "http_status": ..., "code": "...", "message": "..."}} — exit code 1
• trace_id appears on API-backed responses for support/debugging.
• CRITICAL: Never guess why an error happened. Copy fields from error exactly. Full shapes and edge cases: references/parameters.md.

Error type values

• http_error — API 4xx/5xx (http_status, code, message)
• network_error — Connection failure or timeout
• parse_error — Response is not valid JSON
• client_error — Local issues (missing token, bad path, validation)

Main commands

Smart image handling (task submit --image, element create --image)

• Local path → auto-upload (auto-compress when file is larger than 10MB)
• http(s): URL → download then upload
• ssupload:?id=... → use as-is

Key Capabilities

• text-to-image — Text-only image generation
• text-to-video — Text-only video generation
• image-to-video — One image + text → video
• head-tail-image-to-video — Start + end frames + text
• reference-to-image — Images + materials: 1–7 total; text prompt required; can be images-only, materials-only, or mixed; images-only needs no element create
• reference-to-video — Same rule: 1–7 total; text prompt required
• lip-sync — Drive video mouth movement with text-to-speech or audio file
• text-to-speech — Convert text to speech audio via task tts
• video-compose — Compose multi-track timeline (video/audio/subtitle/effect) into a single exported video via task compose
• create-references — element create (single command)
• search-community-references — element search
• query-task — task get [--output <dir>]

Setup

1. npm install -g vidu-cli@latest (requires Node.js >=14; postinstall auto-downloads the platform binary)
2. Obtain VIDU_TOKEN (e.g. Vidu console).
3. Set VIDU_TOKEN environment variable (required); set VIDU_BASE_URL if not using default region.
4. Verify: vidu-cli task submit --help

Data usage and privacy (summary)

Content you send (prompts, images, task settings) goes to Vidu’s API. Confirm this meets your privacy and IP needs. Prefer least-privilege tokens for testing. Terms: https://www.vidu.com/terms (overseas), https://www.vidu.cn/terms (mainland China).

Async workflow (short)

• Vidu generation is asynchronous: task submit → task_id → poll task get <task_id> until terminal state.
• Model nicknames: Q1 → 3.0, Q2 → 3.1, Q3 → 3.2. Additional variants exist: 3.1_pro, 3.2_fast_m, 3.2_pro_m — see references/parameters.md for the complete per-task model version list.
• Task-type summaries, task support matrix, copy-paste CLI examples, prompt tips, and element create/list/search details are in references/parameters.md.
• Task lifecycle, retries, and polling guidance: references/errors_and_retry.md.

Implementation guide

For task submit (generation tasks)

1. Pick capability → map to --type and options using references/parameters.md (matrix + validation).
2. Prepare inputs: for reference2image / character2video, --image and/or --material so combined count is 1–7; optional [@name] in prompt per references/parameters.md.
3. vidu-cli task submit ... → store task_id and trace_id.

- schedule-mode auto-detection: if --schedule-mode is omitted, CLI queries claw-pass status and uses claw_pass when user has an active pass, otherwise normal. If submit fails with ClawPassExplicitModeRequired, tell the user their daily claw-pass quota is exhausted. Do not retry automatically.

1. vidu-cli task get <task_id> until success or failed; use --output <dir> to download media on success.
2. On success return downloaded_files (if --output used) or prompt user to re-run with --output; on task failure return err_code / err_msg; on CLI ok: false return error fields verbatim.

For task compose (video composition)

CRITICAL: Before constructing the --timeline JSON, you MUST read references/compose.md first. The timeline has a specific JSON schema with exact field names, nesting structure, and media_url rules. Do NOT guess the structure — always refer to compose.md for the complete schema, supported fields, and examples.

1. Read references/compose.md to understand the timeline JSON schema, media_url rules, and limits.
2. Build the timeline JSON following the exact structure: video_tracks[].video_track_clips[], audio_tracks[].audio_track_clips[], subtitle_tracks[].subtitle_track_clips[], effect_tracks[].effect_track_items[].
3. For media_url: use ssupload:?id=xxx, http URL, or local file path (auto-uploaded by CLI).
4. For file_url (subtitles): use ssupload:?id=xxx, http URL, or local .srt file path.
5. vidu-cli task compose --timeline <file_or_json> [--width N --height N] → returns task_id.
6. vidu-cli task get <task_id> to poll status, same as other tasks.

Output to the user

• After submit: return task_id and trace_id; state that processing is in progress.
• After query: if state is success, return downloaded_files (if --output was used) or the task_id with a note to re-run with --output <dir> to download; if failed, return err_code and err_msg exactly (note: response may still have ok: true while state is failed).
• On CLI failure (ok: false): report error.type, http_status, code, message exactly — do not infer causes.

References (bundled)

Fallback (no Node.js / npm)

If node / npm / vidu-cli cannot be installed, this skill cannot run. Require vidu-cli latest (via npm install -g vidu-cli@latest, Node.js >=14) and point users to references/parameters.md for parameter details.