AIImportance: Medium

'handoff' lets Claude Code and Codex delegate grunt work to DeepSeek V4

r/codexJun 16, 2026 · 26d ago

'handoff' is a small tool that lets Claude Code or Codex send routine execution tasks — writing code, running tests, refactoring, bulk edits — to DeepSeek V4 without leaving the . DeepSeek runs the job in the background in its own isolated context and returns the result as a file. Multiple tasks can be dispatched at once, and old conversations can be resumed for follow-ups.

The tool also works in reverse: from Claude Code, the `/handoff-codex` command sends a hard problem to Codex for a second opinion, with Claude Opus available as an additional reviewer. Because Codex has no , its subagent is invoked by name (`handoff-ds`) rather than a . Installation is two lines — `uv tool install handoff-cli && handoff init` — and it reuses an existing Codex login, so only a token is needed.

Users already on OpenCode Go can connect their existing cheap DeepSeek endpoint directly.

Key points

  • From Claude Code, `/handoff-ds` sends execution tasks to DeepSeek V4 in the background
  • Reverse direction supported: `/handoff-codex` from Claude Code gets a Codex second opinion
  • Multiple tasks can run in parallel; results return as files to your
  • Install with `uv tool install handoff-cli && handoff init`; only a DeepSeek token is needed
  • OpenCode Go subscribers can plug in their existing DeepSeek endpoint

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