I built Karen — She hates your PR. And she’s usually right.
a Claude Code plugin that sends your PR to a second AI to catch bugs you both missed.
Claude reviewing its own code = grading your own exam.
Karen fixes that.
She sends your diff to Codex → gets issues → Claude re-checks every flagged line → runs an 8-step filter → kills false positives → fixes real bugs.
Two models checking each other.
Catches:
• null derefs
• missing imports
• race conditions
• XSS
• stale closures
• broken contracts
Ignores:
• fake “null checks” (TS strict)
• “magic number 404”
• already-validated inputs
Every dismissal has reasoning.
Install:
claude plugin marketplace add Snowtumb/Karen
claude plugin install karen
Run:
/codex-review
Posts results directly to your PR.
Needs:
Claude Code + Codex CLI + GitHub CLI
Free (MIT): https://t.co/7QvbTmLktA
@bcherny@GrayOdesa@bcherny we definitely need an auto reset …once usage is reset session should start over…like i run testings with workflows limit is over and after 3 hr i have to manually start over this session to complete…like let it run
@zenorocha Can you guys add a multi domain for testing/building….$20 is nothing for multi domain feature, but in development it just an extra monthly payment while developing….
@omniscient57@rezoundous idk y. like i said i have m1 with 8gb working with Chrome+Claude desktop +Grok CLI +Codex CLI +VsCode and everythign is fine. ocne xCode is on or simulator then yeah iMac is dead
I do NOT see this at all. Opus 5 is lazy on agentic work, it’s lazy on workflows. It does NOT take responses as clear as Fable does. It has hard time managing and delegating the task. It does have dapscity or doesn’twant to manage myltiple agents with different tasks, it loses the scooe and the goal.
Fable 5 is 1000% better. Fable 5 spins off Opus and sonnet agents correctly, executes and double checks stuff. The only problem is it consumes ungodly amounts of tokens, but at the same time opus taking sweet time and more itterstions ultimately will use 5hr usage anyway just in longer timeframe