:core:protocol window/ — pure state machine ported function-for-function from web/src/lib/message-window-store.ts + messages.ts: merge-by-(id|localId) with optimistic echo reconciliation, position ordering (invokedAt ?? createdAt, seq, ASCII id tie-break), trim-preserving-queued with the codex agent-run budget, epoch reset handling, latest-replace with request-baseline identity preservation, consumed/cancelled/queued-reconcile transitions, tail/history modes, hydrate/persist shapes. MessageRetention ports the null-decision tree of normalizeDecryptedMessage (dedup with the B-M2a pipeline port flagged). :core:data store/ — per-session MessageWindowStore (StateFlow + Mutex, single-flight tail sync with trailing drain, fetchOlder with epoch-reset resync, SSE ingest hooks, optimistic sends, queued-state reconciliation, seedFrom for resume id changes) + WindowSnapshots (atomic JSON files, LRU 10; JsonSnapshotStore dedup TODO) + MessageWindowStores registry. Minimal MessagesApi interface (sealed MessagesQuery) extracted over the two message endpoints, implemented by HapiApi. Gate: PaginationFixtureTest replays all 11 shared/fixtures/pagination scripts against the real store — requests, older-load outcomes, reconcile candidates and the final window projection all exact — 11/11 green; plus targeted concurrency/snapshot/seed unit tests. :app:assembleDebug green.
HAPI
Run official Claude Code / Codex / Cursor Agent / Grok Build / OpenCode / Kimi / Copilot / Antigravity / Pi sessions locally and control them remotely through a Web / PWA / Telegram Mini App.
Why HAPI? HAPI is a local-first alternative to Happy. See Why Not Happy? for the key differences.
Features
- Seamless Handoff - Work locally, switch to remote when needed, switch back anytime. No context loss, no session restart.
- Native First - HAPI wraps your AI agent instead of replacing it. Same terminal, same experience, same muscle memory.
- AFK Without Stopping - Step away from your desk? Approve AI requests from your phone with one tap.
- Your AI, Your Choice - Claude Code, Codex, Cursor Agent, Grok Build, OpenCode, Kimi, Copilot, Antigravity, Pi—different agents, one unified workflow.
- Terminal Anywhere - Run commands from your phone or browser, directly connected to the working machine.
- Voice Control - Talk to your AI agent hands-free using the built-in voice assistant.
- Workspace Browser - Opt-in via one or more
hapi runner start --workspace-root <path>flags: browse scoped file trees from the web and start sessions in allowed subdirectories.
Demo
https://github.com/user-attachments/assets/38230353-94c6-4dbe-9c29-b2a2cc457546
Getting Started
npx @twsxtd/hapi hub --relay # start hub with E2E encrypted relay
npx @twsxtd/hapi # run claude code
hapi server remains supported as an alias.
The terminal will display a URL and QR code. Scan the QR code with your phone or open the URL to access.
The relay uses WireGuard + TLS for end-to-end encryption. Your data is encrypted from your device to your machine.
For self-hosted options (Cloudflare Tunnel, Tailscale), see Installation
Docs
Native apps (iOS / Android)
Fully native SwiftUI and Kotlin Compose clients are in development under ios/ and android/. They pair with your hub by scanning the same terminal QR code as the web app, and follow the same protocol — see the client contract docs.
Build from source
bun install
bun run build:single-exe
Credits
HAPI means "哈皮" a Chinese transliteration of Happy. Great credit to the original project.