kungfu vs openrig
kungfu: Kungfu keeps a unit of Work outside any single agent session, recording its objective, progress, evidence, next action and completion state, so the same Work can move between Codex, Claude, OpenCode, Amp or your own agent without re-explaining context. Each Agent attempt is recorded under the Work, a second live writer is blocked, and an Agent cannot approve its own result: completion goes through independent review. It is in Alpha.; openrig: OpenRig wraps coding agent harnesses into a rig: a persistent team defined in YAML and booted with one command, with Claude Code and Codex managed as one system. You talk to a lead agent about the outcome you want, and it coordinates specialists across teams and surfaces results and decisions.
TL;DR
Switching between a premium and a cheaper coding agent on the same task
Run a persistent team of coding agents on a repository
Side-by-Side Comparison
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