---
title: "OpenAI's Codex now encrypts instructions between AI agents"
url: https://www.parallelquant.com/posts/openai-s-codex-now-encrypts-instructions-between-ai-agents-52afc6
source_name: "The Decoder"
source_url: https://the-decoder.com/openais-codex-now-encrypts-instructions-between-ai-agents-leaving-developers-blind-to-internal-delegation/
published: 2026-07-15T08:30:48.000Z
topics: ["agents"]
publisher: "Parallel Quant"
---

# OpenAI's Codex now encrypts instructions between AI agents

*2026-07-15 · Source: [The Decoder](https://the-decoder.com/openais-codex-now-encrypts-instructions-between-ai-agents-leaving-developers-blind-to-internal-delegation/)*

Since early June, OpenAI's coding tool Codex encrypts the instructions a main agent sends to its subagents, so developers can no longer see how tasks are delegated internally. For the larger GPT-5.6 variants Sol and Terra, this encryption is mandatory.

**Why it matters:** It reduces visibility for developers debugging multi-agent Codex workflows.

**Topics:** agents

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Read the original: https://the-decoder.com/openais-codex-now-encrypts-instructions-between-ai-agents-leaving-developers-blind-to-internal-delegation/
Canonical: https://www.parallelquant.com/posts/openai-s-codex-now-encrypts-instructions-between-ai-agents-52afc6
Published by Parallel Quant — https://www.parallelquant.com