oly — Open Relay

https://github.com/user-attachments/assets/bd52a474-d9c4-48a7-824b-8df328a9d5a7

Run interactive CLIs and AI agents like managed services.

oly gives long-running terminal jobs a durable home.

Start a command once, detach, close your terminal, come back later, inspect logs, send input only when needed, or reattach and take over. It is built for AI agent workflows, interactive CLIs, and any session you do not want tied to one fragile terminal window.

If oly saves you time, please star the repo. That helps more people discover it.

For deep implementation details, see ARCHITECTURE.md, ARCHITECTURE_PTY.md.

Why people use oly

• Detach without losing the process. The daemon owns the session, not your terminal.
• Stop babysitting prompts. Watch logs or wait for likely input-needed checkpoints.
• Intervene surgically. Send text or keys without attaching.
• Resume with context. Reattach and replay buffered output first.
• Keep an audit trail. Session output and lifecycle events persist on disk.
• Control it from more than one place. Use the CLI, the web UI, or route work to connected nodes.

oly is not trying to replace your favorite terminal. It is a supervision layer for long-lived, interactive workloads. A simple CLI proxy.

Install

npm

npm i -g @slaveoftime/oly

The published npm package bundles the supported platform binaries directly, so users do not need to download a GitHub release asset during npm install.

Cargo

cargo install oly

Homebrew

brew tap slaveOftime/open-relay https://github.com/slaveOftime/open-relay
brew install slaveOftime/open-relay/oly

Prebuilt binaries

Download the latest release from the Releases page.

Current release artifacts are published for:

• macOS: Apple Silicon (arm64)
• Linux: x86_64 / AMD64
• Windows: x86_64 / AMD64

Quick start

If you only try one workflow, make it this one:

# Start the daemon.
# By default, the local web UI/API is enabled and protected by a password
# you set at startup.
oly daemon start --detach

# Launch a detached session
oly start copilot

# See what's running
oly ls

# Check recent output and optionally wait for an input-needed checkpoint
oly logs <id> --wait-for-prompt --timeout 1m

# Send input without attaching
oly send <id> "yes" key:enter

# Reattach when you want full control
oly attach <id>

# Stop the session
oly stop <id>

Useful behavior to know:

• oly attach, oly logs, oly send, oly stop, and oly notify accept an optional session ID. If you omit it, oly targets the most recently created session.
• To detach from an attached session, press Ctrl-], then d.
• oly ls --json prints machine-readable output for scripts and agents.

What oly does well

1. Supervise agent sessions

Run coding agents, REPLs, installers, or approval-heavy workflows in the background without keeping one terminal open forever.

2. Detect likely human checkpoints

oly logs --wait-for-prompt lets you block until a session likely needs attention, then inspect the output before deciding what to do next.

3. Let humans stay in the loop

When a process needs confirmation, credentials, or a decision, you or agent can send input directly:

oly send <id> "continue" key:enter
oly send <id> key:ctrl+c
oly send <id> key:up key:enter

4. Keep a browser-accessible control plane

By default, oly daemon start -d also serves a local web UI and HTTP API on http://127.0.0.1:15443.

• Use --bind to change the bind address (for example --bind 0.0.0.0).
• Use --port to change the port.
• Use --no-http for CLI-only operation.
• Use --no-auth only if you understand the risk and are protecting access elsewhere.

5. Route work to other machines

oly can connect multiple daemons together so one primary can supervise sessions on secondary nodes.

Core workflow patterns

Detached agent run

oly start --title "fix failing tests" --detach copilot
oly logs --wait-for-prompt
oly send <id> "approve" key:enter

Watch logs without attaching

oly logs <id> --tail 80
oly logs <id> --tail 80 --keep-color
oly logs <id> --tail 120 --no-truncate

Start on a connected node

oly start --node worker-1 --title "nightly task" --detach claude
oly logs --node worker-1 --wait-for-prompt <id>

Command reference

Session and daemon commands

| Command | Purpose | | --- | --- | | oly daemon start [--detach] [--bind <addr>] [--port <port>] [--no-auth] [--no-http] | Start the daemon, optional local web API/UI | | oly daemon stop [--grace <seconds>] | Stop the daemon and let sessions exit cleanly first | | oly start [--title <title>] [--detach] [--disable-notifications] [--cwd <dir>] [--node <name>] <cmd> [args...] | Start a session | | oly ls [--search <text>] [--json] [--status <status>]... [--since <rfc3339>] [--until <rfc3339>] [--limit <n>] [--node <name>] | List sessions | | oly attach [id] [--node <name>] | Reattach to a session | | oly logs [id] [--tail <n>] [--keep-color] [--no-truncate] [--wait-for-prompt] [--timeout <duration>] [--node <name>] | Read logs without attaching | | oly send [id] [chunk]... [--node <name>] | Send text or special keys to a session | | oly stop [id] [--grace <seconds>] [--node <name>] | Stop a session | | oly notify enable [id] [--node <name>] | Enable notifications for a session | | oly notify disable [id] [--node <name>] | Disable notifications for a session | | oly skill | Print the bundled oly skill markdown |

Supported oly send key forms include named keys like key:enter, key:tab, key:esc, arrows, home/end, pgup/pgdn, del/ins, modifier forms like key:ctrl+c, key:alt+x, key:meta+enter, key:shift+tab, and raw bytes via key:hex:....

Federation commands

| Command | Purpose | | --- | --- | | oly api-key add <name> | Create an API key on the primary and print it once | | oly api-key ls | List API key labels on the primary | | oly api-key remove <name> | Revoke an API key on the primary | | oly join start --name <name> --key <key> <url> | Connect this daemon to a primary | | oly join stop --name <name> | Disconnect and remove a saved join config | | oly join ls | List saved outbound join configs on this daemon | | oly join ls --primary | Ask the daemon for currently active primary-side joins | | oly node ls | List secondary nodes currently connected to the primary |

Browser access and remote supervision

oly serves its HTTP API and web UI on loopback by default:

http://127.0.0.1:15443

That default is deliberate. The safe pattern is:

browser or phone -> your auth gateway -> your tunnel -> local oly HTTP service

Examples:

• Cloudflare Access
• Tailscale / Headscale
• SSH tunnel
• your own reverse proxy with strong auth

This keeps oly small and local-first while still supporting remote intervention when you need it.

Notification hooks

If desktop notifications are not enough, you can configure a custom notification hook in config.json under OLY_STATE_DIR (or the default state directory for your OS).

{
  "notification_hook": "python C:\\scripts\\oly_notify.py {kind} {session_ids}"
}

Placeholders available in the command:

• {kind}
• {title} / {summary}
• {description}
• {body}
• {navigation_url}
• {node}
• {session_ids}
• {trigger_rule}
• {trigger_detail}

The same values are also exported as OLY_EVENT_* environment variables.

Hooks are best-effort: failures are logged, but they do not block the session or notification pipeline.

State, config, and files

Default state directory:

• Windows: %LOCALAPPDATA%\oly
• Linux: $XDG_STATE_HOME/oly or ~/.local/state/oly
• macOS: ~/Library/Application Support/oly

You can override it with OLY_STATE_DIR.

Inside that directory, oly stores:

• the SQLite database
• daemon logs
• session logs and metadata
• generated default config.json
• saved join configs on secondary nodes
• optional wwwroot static content

Good fits for oly

• GitHub Copilot CLI, Claude Code, Gemini CLI, OpenCode, and similar agent workflows
• Long-running installs or migrations that may need approval later
• Interactive REPLs or TUIs you want to resume safely
• Background automation that still needs occasional human intervention
• Single-operator or small-team setups that want a lightweight supervision layer

Learn more

• SPEC.md for the implementation-aligned product spec
• ARCHITECTURE.md for the system overview
• ARCHITECTURE_PTY.md for PTY behavior
• ARCHITECTURE_NOTES.md for edge cases and operational notes

If you are building agent workflows and want durable, inspectable terminal sessions, oly is for you.