AI coding-agent delegation for Claude Code and Codex. Sidekick lets the host AI stay focused on planning, review, mentoring, and communication while supported sidekicks perform implementation work.
| Sidekick | Activate | Runtime |
|---|---|---|
| Kay | /sidekick:kay-delegate |
Kay runtime installed and repaired through Sidekick |
| Codex | /sidekick:codex-delegate |
Local OpenAI Codex CLI, using gpt-5.4-mini with extra-high reasoning |
Stop commands:
| Sidekick | Stop |
|---|---|
| Kay | /sidekick:kay-stop |
| Codex | /sidekick:codex-stop |
Host AI = Brain
Sidekick = Hands
The host AI creates the plan, delegates bounded implementation tasks, reviews the sidekick output, and verifies the final state before reporting completion. Sidekick hooks prevent direct host edits while a sidekick is active and route supported runtime commands through bounded, redacted progress surfaces.
After every sidekick task, the host must verify the result against the original prompt and success criteria. If the sidekick missed a requirement, broke integration, introduced a regression, used wrong logic, changed the wrong file, hit a syntax error, relied on a bad assumption, misunderstood the task, stopped early, or was blocked by provider or environment failures, the host relaunches the active sidekick with focused guidance until the failure is resolved.
bash tests/run_unit.bash
bash tests/run_all.bash
bash tests/run_in_kay.bash SIDEKICK_LIVE_CODEX=1 bash tests/run_release.bash