henshusha

Create and operate a Henshusha agent-native video editing workspace.

npx henshusha@latest my-studio
# or
bunx henshusha@latest my-studio

Recommended for Bun users on the first run:

bunx henshusha@latest demo

If Bun still reuses an old cached package:

bun pm cache rm
bunx henshusha@latest my-studio

Repository CI keeps this starter checked in three layers: fast PR checks on Ubuntu, cross-platform CLI smoke on Ubuntu/macOS/Windows, and publish-time npx / bunx verification after npm propagation.

Scaffolding installs workspace dependencies and runs git init by default so the first Remotion preview and GitHub handoff are ready quickly. Use --no-install or --no-git to opt out.

Standalone vs embedded init

Standalone creates a new empty studio directory (default command):

npx henshusha@latest my-studio
# or with explicit agent skills:
npx henshusha@latest my-studio --agents claude,pi
npx henshusha@latest my-studio --all-agents
npx henshusha@latest my-studio --no-skills

Embedded init merges Henshusha into an existing Git repository without creating a nested .git/:

cd your-existing-repo
npx henshusha@latest init
npx henshusha@latest init --dir videos

Embedded init flags (practical reference):

| Flag | Purpose | | --- | --- | | --dir <path> | Place scaffold content under a nested folder (for example videos/projects/sample-video). | | --agents claude,codex,pi | Install skills only for listed runtimes (comma-separated). | | --all-agents | Install Claude Code, Codex, and Pi skills (non-TTY default). | | --no-skills | Scaffold workspace files without copying agent skills. | | --force | Overwrite conflicting Henshusha package scripts and skill files. | | --dry-run | Print the init plan without writing files. | | --no-install | Skip dependency install (useful in CI and tests). |

On an interactive terminal, henshusha init with no agent flag shows a Space-toggle checkbox for Claude Code / Codex / Pi. Reruns preselect agents from .henshusha/manifest.json when present. Unchecking a runtime does not delete previously installed skills.

Agent skills install at the Git repository root during embedded init (not under --dir), while project files land in the content directory you choose.

The generated workspace is not a single-video project. It is a studio root that can contain many video projects:

my-studio/
  .git/
  .gitattributes
  .gitignore
  henshusha.config.json
  projects/
    sample-video/
      sources/raw/
      scripts/edit-plan.md
      transcripts/
      timelines/main.timeline.json
      renders/
      jobs/
  .claude/skills/
  .codex/skills/
  .pi/skills/

After the workspace install finishes, the generated package already includes a local henshusha devDependency. That keeps workspace scripts off the network on later runs.

MVP commands inside the generated workspace:

npm run validate
npm run render:dry-run
npm run render
npm run remotion:props
npm run doctor:updates
npm run new-project -- next-video

render --dry-run writes projects/<project>/jobs/render-plan.json with resolved paths, overlay timings, and the FFmpeg command without requiring FFmpeg to run.

Generated workspaces also include a Remotion starter under projects/sample-video/remotion/ plus these scripts:

npm run remotion:props
npm run remotion:preview
npm run remotion:render

The Remotion starter includes text-templates.tsx with reusable presets for richer text overlays: headline-pop, bottom-caption, karaoke-caption, lower-third, and quote-card. Set preset, plus optional accent, label, or speaker, on title / caption timeline items to switch the look without rewriting the composition.

The first renderer is a manual cut + overlay path: source video clips are concatenated, then title/caption text is overlaid with FFmpeg. The Remotion path is available for richer visual composition. Whisper/ASR and VOICEVOX/Zundamon narration are intentionally deferred.

Packaged skills include henshusha-digest-story, which guides agents through a quick digest workflow: story beats → edit plan → Timeline JSON → FFmpeg dry-run/render → Remotion props/preview.

doctor --updates checks npm for a newer henshusha package and prints the update command. A full workspace file upgrade command is planned; current generated workspaces keep user-edited files under normal Git control.