The Inkbox DeepSeek Harness plugin is a native bundle and CLI for DeepSeek Harness. It connects a Harness agent to an Inkbox identity and supports email, SMS/MMS and voice calls, iMessage, Agent-to-Agent (A2A) tasks, and an Inkbox tunnel when those channels are configured.

The plugin runs inside a dedicated DeepSeek Harness profile. Inbound events open persistent, contact-scoped Harness sessions that can reply on the same channel.

• DeepSeek Harness 0.1.1-rc.2 installed and configured
• Node.js 22.19 or newer and pnpm
• Linux or macOS for a managed background service; foreground mode works anywhere DeepSeek Harness runs

You do not need to create an Inkbox identity first. The setup wizard can sign up a new agent or connect an existing agent API key.

Confirm that the supported Harness version is available:

Then install Inkbox and launch the setup wizard:

The wizard creates or reuses a dedicated inkbox Harness profile, creates or connects an Inkbox agent, offers phone and iMessage setup, configures signed inbound messaging, and offers to run the gateway in the background.

Re-run inkbox-deepseek setup whenever you need to change the identity, channels, workspace, or service configuration.

Check the installation and gateway status:

If you did not start a background service during setup, run the gateway in the foreground:

Keep the gateway running. It opens the Inkbox tunnel, maintains the configured channel subscriptions, and routes inbound email, SMS/MMS, iMessage, calls, and A2A events into DeepSeek Harness sessions.

Depending on your setup choices and account availability, your DeepSeek Harness agent can have:

• An email address - send, receive, and reply from an Inkbox mailbox
• A phone number, when available - SMS/MMS and voice calls, inbound and outbound
• iMessage, when connected - continue agent conversations from iMessage threads
• Agent-to-Agent tasks - receive and manage structured work from other agents
• An Inkbox tunnel - inbound events reach the local Harness gateway without a public server
• Persistent sessions - each contact keeps one conversation across configured channels

The plugin also adds native tools for identities, contacts, messaging, calls, and A2A task workflows, plus channel-specific guidance for replies.

DeepSeek Harness stays upstream. The plugin adds the Inkbox identity, native tools, channel routing, session continuity, and setup commands without requiring a Harness fork.

Run inkbox-deepseek doctor and inkbox-deepseek status. Both commands should report that the required configuration is ready and the gateway is connected.

Then email or iMessage the identity shown during setup. If you configured a phone number, you can also call it or opt in a phone to receive SMS from the agent. The agent should reply on the channel you used.

• Inkbox DeepSeek Harness plugin on GitHub
• DeepSeek Harness on GitHub
• Manage reachability in the Inkbox Console