hapi - Choose an agent interactively. Unavailable agents are shown with a reason and cannot be selected.
hapi claude - Start a Claude Code session (passes through Claude CLI flags).
hapi codex - Start Codex mode. See src/codex/runCodex.ts.
hapi codex resume <native-thread-id> - Resume a Codex conversation by its native thread ID. For a HAPI session ID, use hapi resume <id>.
hapi cursor - Start Cursor Agent mode. See src/cursor/runCursor.ts. Supports hapi cursor resume <chatId>, hapi cursor --continue, --mode plan|ask, --yolo, --model. Local and remote modes supported; new remote sessions use agent acp. Pre-ACP sessions retain the legacy agent -p stream-json resume path.
hapi grok - Start Grok Build mode. See src/grok/runGrok.ts.
hapi copilot - Start GitHub Copilot mode.
hapi kimi - Start Kimi mode.
hapi agy - Start Antigravity mode (remote-only).
hapi pi - Start Pi mode (remote-only).
hapi opencode - Start OpenCode mode via ACP. See src/opencode/runOpencode.ts. Note: OpenCode supports local and remote modes; local mode streams via OpenCode plugins.
hapi dsh - Start DeepSeek Harness through ACP. See src/dsh/runDsh.ts. DSH is remote-only and its ACP server must be configured separately.
hapi resume [sessionId] - List resumable sessions for this machine or resume one locally.
hapi ping-peer <session-id-prefix> <message> - Resume (if needed) and message another session. Prefer this or MCP ping_peer / list_peers over reinventing JWT+curl. Also --message-file / --list.
hapi inspect-peer <session-id-or-prefix> - Read-only peer metadata + recent message text (no resume). Prefer this or MCP inspect_peer when a user cites [title](/sessions/<id>) or Copy-reference See session "…" (/sessions/<id>) for context. /sessions/<id> is a hub path, not a local file. Optional --limit.

The picker lists agents alphabetically by command name. Use Up/Down and Enter to choose; Esc or Ctrl-C cancels. It appears on every bare invocation, even when only one agent is available. No default agent or selection is saved.

Scripts and non-interactive shells must specify an agent. Old implicit-Claude commands such as hapi --yolo, hapi --resume, and hapi "prompt" now report an error; use hapi claude --yolo, hapi claude --resume, or hapi claude "prompt" instead.

hapi --help, hapi -h, and hapi help show only HAPI's help, without starting a session or requiring an installed agent. hapi --version / hapi -v show HAPI's version. Flags after an agent name are handled by that agent's existing integration; supported flags vary by agent. HAPI does not translate or append agent help text.

Resume a remote session locally

hapi resume
hapi resume <session-id>

hapi resume lists resumable sessions for the current machine. hapi resume <session-id> hands off an active remote session and opens the same HAPI session in the local terminal.

For Codex, the terminal and Web stay usable at the same time. Closing the original terminal stops a terminal-started run, but its history remains resumable. Sessions started from the Web run under the Runner; closing a terminal attached later does not stop them. End session archives the selected conversation. See Codex usage and limits for details.

Answer local Claude prompts from HAPI

In a local Claude session started by hapi claude, main-session AskUserQuestion questions and tool permission prompts can also be answered from the web app. The terminal dialog stays usable; answering does not restart Claude or switch the session to remote mode. Claude arbitrates terminal/web races, and HAPI records the native result rather than assuming the web response won.

The bridge uses Claude's PermissionRequest hook, not a blocking PreToolUse approval gate. An unanswered remote request expires after one hour; expiration, disconnection, or bridge failure leaves the native prompt available. Local answers/cancellation, session changes, and mode switches withdraw stale web controls. Cancellation detection may wait for the next transcript scan.

Verified with Claude Code 2.1.221. Background subagents, ExitPlanMode, and requests that cannot be unambiguously matched to a native tool call remain terminal-only. Earlier Claude versions have not been verified.

Authentication

hapi auth status - Show authentication configuration and token source.
hapi auth login - Interactively enter and save CLI_API_TOKEN.
hapi auth logout - Clear saved credentials.

See src/commands/auth.ts.

Runner management

hapi runner start - Replace any existing runner and start a detached process with the supplied flags/environment.
hapi runner stop - Stop runner gracefully; agent sessions stay alive.
hapi runner start-sync - Run in the foreground (for a process supervisor).
hapi runner status - Show runner diagnostics.
hapi runner list - List active sessions managed by runner.
hapi runner stop-session <sessionId> - Terminate specific session.
hapi runner logs - Print path to latest runner log file.

Both start and start-sync accept repeatable --workspace-root <path> (or --workspace-root=<path>). When set:

The web /browse page surfaces scoped file trees rooted at those paths.
The runner refuses list-directory and spawn-session requests for paths outside the configured roots.
~ and ~/foo are expanded.

Omitting the flag keeps manual session spawning unrestricted and leaves the web /browse feature disabled. Machine directory lookups used by session autocomplete and native pickers are still available, but are limited to the runner's home directory.

See src/runner/run.ts.

Diagnostics

hapi doctor - Show full diagnostics (version, runner status, logs, processes).
hapi doctor clean - Kill runaway HAPI processes.

See src/ui/doctor.ts.

Other

hapi mcp - Start MCP stdio bridge. See src/codex/happyMcpStdioBridge.ts.
hapi hub - Start the bundled hub (single binary workflow).
hapi server - Alias for hapi hub.

Codex MCP servers

Codex sessions keep the MCP servers configured in the user's Codex config.toml. HAPI adds its own hapi bridge without replacing other user servers. When a runner spawn supplies a Codex auth token, it copies only config.toml into a temporary CODEX_HOME and writes the supplied auth.json, preserving MCP settings without copying unrelated authentication state. Without a supplied token, Codex uses the runner's normal Codex home/auth. The hapi server name is reserved by HAPI.

On Windows, known package-manager shims (uvx, npx, npm, pnpm, yarn, bunx, and .cmd/.bat commands) use a short-lived HAPI stdio compatibility proxy before reaching the configured MCP server. The proxy keeps the original command and arguments in a session-temporary file and forwards MCP JSON-RPC bytes without putting environment-variable values into arguments or that file. Secret and network variables still need to be listed in the MCP entry's env_vars (or supplied through env); HAPI does not forward the whole host environment automatically.

Configuration

See src/configuration.ts for all options.

DeepSeek Harness ACP uses dsh-acp-demo by default. Override the executable or its arguments without shell parsing:

export HAPI_DSH_ACP_COMMAND=dsh-acp-demo
export HAPI_DSH_ACP_CONFIG=/path/to/deepseek-harness/examples/acp-agent/cordis.yml
hapi dsh

For a source checkout, use JSON arguments:

export HAPI_DSH_ACP_COMMAND=pnpm
export HAPI_DSH_ACP_ARGS_JSON='["--dir", "/path/to/deepseek-harness", "run", "demo:acp"]'

The official ACP demo is fresh-session-only and does not support native resume, model switching, MCP injection, or live tool/reasoning telemetry. HAPI uses the standard chat and pending one-shot permission surfaces; the ACP composition owns the overall permission policy and HAPI does not advertise resume or model controls for DSH.

Required

CLI_API_TOKEN - Shared secret; must match the hub. Can be set via env or ~/.hapi/settings.json (env wins).

Optional

HAPI_API_URL - Hub base URL (default: http://localhost:3006; also configurable as apiUrl in settings).
HAPI_HOME - Config/data directory (default: ~/.hapi).
HAPI_EXPERIMENTAL - Enable experimental features (true/1/yes).
HAPI_EXTRA_HEADERS_JSON - JSON object of extra headers to send on CLI → hub requests, e.g. {"Cookie":"CF_Authorization=..."}. Can also be set as the extraHeaders object in ~/.hapi/settings.json (environment variable wins).
HAPI_CLAUDE_PATH - Path to a specific claude executable.
HAPI_DSH_ACP_COMMAND - ACP server executable for hapi dsh (default: dsh-acp-demo).
HAPI_DSH_ACP_CONFIG - Optional dsh-acp-demo --config path.
HAPI_DSH_ACP_ARGS_JSON - Optional JSON array of ACP server arguments.
HAPI_HTTP_MCP_URL - Default MCP target for hapi mcp.

Runner

HAPI_RUNNER_HEARTBEAT_INTERVAL - Heartbeat interval in ms (default: 60000).
HAPI_RUNNER_HTTP_TIMEOUT - HTTP timeout for runner control in ms (default: 10000).
HAPI_RUNNER_WEBHOOK_TIMEOUT_MS - Session-start webhook timeout in ms (default: 15000); raise for slow agent startup/resume.
HAPI_DISABLE_VERSION_HANDOFF - Set to 1 to disable automatic runner replacement on CLI binary changes.
HAPI_RUNNER_SUPERVISED - Set to 1 only when a supervisor restarts the runner after exit; enables the web Restart control's supervised path.

Worktree (set by runner)

HAPI_WORKTREE_BASE_PATH - Base repository path.
HAPI_WORKTREE_BRANCH - Current branch name.
HAPI_WORKTREE_NAME - Worktree name.
HAPI_WORKTREE_PATH - Full worktree path.
HAPI_WORKTREE_CREATED_AT - Creation timestamp (ms).

Set for the wrapped agent

HAPI_SESSION_ID - The current HAPI session ID, available inside agent shells. Use it in scripts that target the current conversation without listing sessions.
An explicitly configured HAPI_API_URL is also made available to agent shells. HAPI does not copy settings-backed CLI_API_TOKEN secrets into the agent environment; credentials already present in the parent environment may still be inherited. Web terminal PTYs strip hub secrets.

For peer discovery and messaging, use the session's MCP list_peers, inspect_peer, and ping_peer tools, or the corresponding CLI commands. On a remote runner host, configure the matching hub URL and token so shell commands reach the same hub (hapi auth login saves the token).

For example, this source-checkout helper displays an image in the current session when MCP is unavailable:

bun scripts/tooling/hapi-display-image.mjs /absolute/path/to/image.png "optional title"

Storage

Data is stored in ~/.hapi/ (or $HAPI_HOME):

settings.json - User settings (machineId, token, onboarding flag). See src/persistence.ts.
runner.state.json - Runner state (pid, port, version, heartbeat).
logs/ - Log files.

Requirements

Install and authenticate the agent you want to use. Claude CLI (claude on PATH) is required only for hapi claude.
Cursor Agent CLI installed (agent on PATH) for hapi cursor. Install: curl https://cursor.com/install -fsS | bash (macOS/Linux), irm 'https://cursor.com/install?win32=true' | iex (Windows).
Grok Build CLI installed (grok on PATH) for hapi grok. Authenticate with grok login --device-auth on headless runner machines, or set XAI_API_KEY.
OpenCode CLI installed (opencode on PATH).
Bun 1.4.0 for building from source.

Build from source

From the repo root:

bun install
bun run build:cli                 # Type-check the CLI; no executable output
bun run --cwd cli build:exe       # Host-platform executable in cli/dist-exe/<target>/

For an all-in-one binary that also embeds the web app:

bun run build:single-exe

Source structure

src/api/ - Hub communication (Socket.IO + REST).
src/claude/ - Claude Code integration.
src/codex/ - Codex mode integration.
src/cursor/ - Cursor Agent integration.
src/grok/ - Grok Build native TUI + ACP integration.
src/agent/ - Shared support for ACP-compatible agents.
src/opencode/ - OpenCode ACP + hook integration.
src/runner/ - Background service.
src/commands/ - CLI command handlers.
src/ui/ - User interface and diagnostics.
src/modules/ - Tool implementations (ripgrep, difftastic, git).

../hub/README.md
../web/README.md

README.md

hapi CLI

What it does

Typical flow

Commands

Session commands