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HYPE OR FACT? · CHECKED 2 NOVEMBER 2026

Openhook: 'Claude Code asked Codex and brought back the answer'

OUR VERDICT

Partly fact

Our original verdict: “Fact or hype: partly fact. Openhook is a real open-source tool with a written, tested walkthrough, but the video is a tidied-up replay of the builder's own test with made-up details, run on one machine.”

THE CLAIM

“Claude Code asked Codex a question through Openhook's shared MCP channel and brought back the technical answer: 'real CLI runs, synthetic brief', MIT licensed and self-hostable.”

@berkant_thedev · Original post ↗

What’s actually true

  • openhook.dev is live and says it's open source under the MIT licence; it relays messages between agents and doesn't run commands.
  • The written guide (1 November) logs a captured run with Claude Code 2.1.316 and codex-cli 0.160.0, two signed-in CLI processes in separate folders on one machine.
  • The site itself calls it an internal integration test with synthetic briefs, not a customer story or a test across two people's machines.
  • The 74-second video is an animated replay; it shows no commands, set-up or live terminal.
  • Messages are readable by the server (not end-to-end encrypted), and replies only arrive while an agent is listening.

Sources

Cost

Free, open source (MIT); hosted at openhook.dev.

USE IT IF

Developers and technical teams whose agents need to ask a partner's or contractor's agent something.

SKIP IT IF

Anyone who needs end-to-end encryption, or isn't comfortable setting up MCP.

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How we knowChecked on 2 November 2026. Verdicts: Fact = the claim holds up; Partly fact = real, but with caveats or overstated parts; Hype = the headline claim isn't supported. Products change quickly, so check the maker's site before you buy. Our methods & sources ↗