Routing tasks between Claude Code and Codex with Jev

elune @elune0xOriginally posted 2026.09.25

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Jev just made the Claude Code vs Codex debate obsolete I connected both to Jev - now the best coding agent is selected for every task, and neither can cross a risky tool boundary without a typed decision in one run it scanned 247 files, routed the security audit to Claude Code, routed the patch to Codex, passed 18/18 tests and stopped npm publish before execution here’s how to set it up in 10 min: task → Jev decision → Claude Code / Codex → tool execution → fresh verification step 1 → open @typesafeai and create your Jev API key (never paste it into chat) step 2 → clone and verify the complete agent switch step 3 → export the key before starting either agent: export TYPESAFE_API_KEY="YOUR_KEY" step 4 → test the full decision layer before connecting a live agent: npm run doctor && npm run check:claude && npm run check:codex step 5 → connect Claude Code directly from the repository: claude --plugin-dir . Claude discovers the plugin and turns Jev review decisions into real confirmation requests step 6 → for Codex, install the same folder through your local plugin marketplace, open /hooks and trust the exact PreToolUse hook Codex uses the same policy and safely stops calls that need human review step 7 → keep agent: auto and the plugin detects Claude Code or Codex automatically - or set agent: claude / codex when you want to lock one runtime step 8 → start in shadow mode for 20–50 real decisions: export JEV_AGENT_SWITCH_MODE="shadow" && export JEV_AGENT_SWITCH_LOGGING="true" your agent keeps working normally while Jev records the route, confidence and outcome without blocking anything step 9 → switch to enforce only after the decisions look reliable: export JEV_AGENT_SWITCH_MODE="enforce" safe calls pass, uncertain calls stop for review, dangerous calls are denied the default boundary is 0.62 minimum confidence and 0.86 harmful-action probability step 10 → use it normally - ask Claude Code or Codex to inspect, patch, test or prepare a release; the same Jev layer stays in front of both the result: Claude Code handles deep repository context, Codex handles fast patches and verification, and Jev decides which worker gets the task - while keeping publishing, production and irreversible actions behind a human boundary unfortunately, most people are still comparing coding models as if one model needs to win forever the actual 2030 setup makes the model replaceable: one task enters, Jev selects the best worker, code enforces the decision and every action leaves a receipt Steal the agent setup everyone will use by 2028, copy the repo below - then read the full Jev Engineering playbook ↓

This post quotes another post: “Jev turns routing, scoring and verification into a decision layer”