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Get Started Free →Delegate tasks to OpenAI Codex CLI and Google Antigravity CLI from Claude Code. Say 'check with codex' or 'ask gemini for a second opinion' and Claude runs the other agent, keeps a topic-aware session, and critiques the result.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-07 | ✗→✓ | ▲ Improved | -14% | 0% |
| case-08 | ✗→✓ | ▲ Improved | -15% | 0% |
| case-10 | ✗→✓ | ▲ Improved | 1% | 0% |
| case-15 | ✗→✓ | ▲ Improved | -10% | 0% |
| case-18 | ✗→✓ | ▲ Improved | 11% | 0% |
Delegate tasks to external AI CLIs from inside Claude Code. Say "check with codex", "ask gemini for a second opinion", or "validate this before I merge" and Claude runs the other agent, keeps a topic-aware conversation, and critiques the result rather than echoing it.
Supports OpenAI Codex CLI and Google Antigravity CLI (multi-model: Gemini, Claude, GPT-OSS). No API keys — both CLIs use their own auth (OAuth / Google sign-in).
Source: sparklingneuronics/sparkling-skills (MIT)
User: ask codex to review my uncommitted changes before I merge
Claude: [runs codex review --uncommitted, synthesizes findings]
Codex flagged three things. I agree with #1 (missing null check)
but #2 and #3 are false positives. Want me to fix the null check?User: ask gemini to challenge this architecture
Claude: [runs agy with Gemini 3.1 Pro, compares with own analysis]
Gemini raises a valid concern about hot-partition risk that I
hadn't flagged. Its other two points don't apply here.User: continue with codex — is the top issue real?
Claude: [resumes the same codex session with a delta bridge]
Codex confirms the null-check issue — it traced the code path.codex CLI + codex login (OAuth)agy CLI + Google sign-in (free account)Install: claude install-plugin sparklingneuronics/sparkling-skills
Other measured skills in the registry, with their headline benchmark lift.