wechat-2d-render

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass, no license.

Audit 0.4.1 · source sha b8818ac5e0a0 · 28 Oct 2026Report an issue or request a re-scan

• Publishervibe-motion GitHub organizationOwner of the repository this skill is read from
• Source foldervibe-motion/skills/wechat-2d-renderThe exact folder we audited
• LicenceNot declaredAs the repository states it
• Commit pinned for this verdictb8818ac5e0a0A new audit runs when the source changes
• Repository statusNot archivedLast push 22 days ago
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its description: Clone or update https://github.com/sxhzju/wechat-2d and render the default WeChat-style 2D chat motion video with Remotion. Use when users ask for 微信聊天动画, wechat 2d chat render, 微信视频消息动效, or exporting the default demo…

---
name: wechat-2d-render
description: Clone or update https://github.com/sxhzju/wechat-2d and render the default WeChat-style 2D chat motion video with Remotion. Use when users ask for 微信聊天动画, wechat 2d chat render, 微信视频消息动效, or exporting the default demo from the wechat-2d project.
---

# WeChat 2D Render

## Workflow

1. Use `scripts/render_wechat_2d.sh` from this skill.
2. Pass `workspace_dir` as the first argument when the user specifies a folder; otherwise use the current directory.
3. Pass `output_path` as the second argument when the user specifies output; otherwise use `out/wechat-2d-transparent.mov`.
4. Pass a props JSON path as the third argument when the user provides custom Remotion props; otherwise use `shared/project/render-presets/default.json`.
5. Run the script and wait for completion.
6. Return the final absolute output path printed by the script.

## Command

```bash
bash scripts/render_wechat_2d.sh [workspace_dir] [output_path] [props_file]
```

## Installed Skill Resolution

Use the installed skill copy, not the source repo checkout:

```bash
skill_dir=""
for base in "${AGENTS_HOME:-$HOME/.agents}" "${CLAUDE_HOME:-$HOME/.claude}" "${CODEX_HOME:-$HOME/.codex}"; do
  if [ -d "$base/skills/wechat-2d-render" ]; then
    skill_dir="$base/skills/wechat-2d-render"
    break
  fi
done
[ -n "$skill_dir" ] || { echo "wechat-2d-render skill not found under ~/.agents, ~/.claude, or ~/.codex"; exit 1; }

bash "$skill_dir/scripts/render_wechat_2d.sh" "$(pwd)" "$(pwd)/out/wechat-2d-transparent.mov"
```

## Behavior

- Reuse local repo if `workspace_dir/wechat-2d` exists; otherwise clone from GitHub.
- Track remote default branch (`origin/HEAD`) when updating an existing repo.
- Install dependencies with `pnpm install`; if `pnpm` is missing, enable it through `corepack`.
- Run the project Remotion scripts:
  - `pnpm run remotion:ensure-browser`
  - `REMOTION_OUTPUT=... REMOTION_PROPS_FILE=... pnpm run remotion:render`
- Default render target is the active composition from `shared/project/projectConfig.js`, currently the `wechat-chat-motion` plugin via `ScaffoldDemo30fps`.
- Default output is ProRes 4444 with `yuva444p10le` pixel format and PNG image format, suitable for transparent-background workflows.

## Project Notes

- The project uses a scaffold/plugin split:
  - `preview/*` for local UI controls and browser preview.
  - `remotion/*` for Remotion entry wrappers.
  - `shared/scaffold/*` for common runtime.
  - `shared/project/*` for plugin and composition registry.
  - `shared/features/demoMotion/*` for the WeChat chat scene.
- Animation state must be deterministic per frame. Remotion renders frames in parallel and out of order, so do not rely on timers, mutable cursors, previous renders, or render order.
- Frame-specific data should be built from `{frame, fps, loop, sceneContext, pluginParams}` in `buildSceneProps`.
- Keep `videoWidth` and `videoHeight` as layout props; use a props JSON file for custom sizes.

## Requirements

- `git`
- `node`
- `corepack` or `pnpm`
- network access for clone/update and dependency install

Excerpt, first 3,090 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

1. 2026-10-28
   ✓SAFE B 89 / 100

   first audit · source b8818ac5e0a0

Questions about wechat-2d-render

• github.com/vibe-motion/skills/tree/main/wechat-2d-render — the audited source at commit b8818ac5e0a0 and every finding aboveObserved · 28 Oct 2026

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