With Handoff, your coding agents can finally work together.

You're in	Hand off to	Why
Claude Code / Codex	DeepSeek	It does the simple work fast and cheap; save the expensive quota for decisions
DeepSeek	Codex / Opus	Borrow a brain for hard problems, bring the answer back to your session

No tool-switching, no lost context.

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Why handoff

If you use more than one coding agent, these will sound familiar:

• 💸 "Claude / Codex: the $20 plan never lasts. The $100 plan costs too much." — Just say: "Give this task to /handoff-ds." DeepSeek does the work fast and cheap. Save your expensive quota for decisions.
• 🤔 "DeepSeek is stuck. I want a second opinion from Codex." — Just say: "Ask /handoff-codex what it thinks." No new terminal. No re-explaining. The answer comes back to your current session.
• 🔁 "/handoff-ds finished that task. Now I have a follow-up task for it." — Just say: "Resume the last /handoff-ds session, then do X." It just sends one more message in the old conversation — all the old context is still there.

The math is simple: DeepSeek V4 is as capable as Sonnet, and on OpenCode Go the same money buys 18× the work:

Option	Relative cost for the same work
Claude Sonnet (subscription)	1× (baseline)
DeepSeek official API	1/3
OpenCode Go (includes DeepSeek V4)	1/18

So: only pay for the SOTA model (Opus / GPT-5.5) — use it to plan and review. Everything else goes to DeepSeek. With handoff, $20 Claude Code (plan + dispatch) + $5 OpenCode Go (execution) ≈ the work of a $200 Claude Code Max.

Quick start

Before you start: handoff works inside Claude Code (CLI or desktop app) or Codex. You need at least one of them installed and logged in.

1. Install

uv tool install handoff-cli
handoff init        # creates config and links Claude skills / Codex custom agents
uv tool upgrade handoff-cli   # update to the latest version

2. Set your token

The opus and codex backends reuse your existing Claude Code / Codex logins — zero config. Only DeepSeek needs a token.

For DeepSeek, we recommend the OpenCode Go plan (lowest cost, includes DeepSeek V4). Once you have a key, edit ~/.handoff/config.yaml and change just the ANTHROPIC_AUTH_TOKEN line:

⚠️ OpenCode Go users: you need a local proxy to use OpenCode Go with Claude Code. See routatic/proxy.

# ~/.handoff/config.yaml — handoff init generates this for you
backends:
  deepseek:                          # ← first = default
    type: claude
    model: deepseek-v4-flash
    pro_model: "deepseek-v4-pro[1m]"
    env:
      ANTHROPIC_BASE_URL: https://api.deepseek.com/anthropic
      #for opencode-go you have to setup local proxy  
      #see: https://github.com/routatic/proxy
      ANTHROPIC_AUTH_TOKEN: "sk-..."  
      ANTHROPIC_MODEL: "{model}"

  opus:                              # local claude login — zero config
    type: claude
    ...
  codex:                             # local codex login — zero config
    type: codex
    ...

3. Dispatch your first task

Go back to Claude Code and say:

Make a plan, then hand it to /handoff-ds.