Evidence record / codex
A dated record of one change, kept so the writing that cites it can be checked. Compiled from the sources listed below by the research run, not written for reading. The judgment lives in the signals and issues that cite it, below.
2026-09-21-codex-untrusted-projects-stop-feeding-agents-md-and-startup-stops-running-workspace-helpers-befo
Untrusted projects stop feeding AGENTS.md, and startup stops running workspace helpers before trust. When the project is untrusted, project-scoped AGENTS.md discovery is skipped. User-level instructions are kept, and trust level is part of the instruction cache key, so a runtime trust change reloads instructions. Managed deny-read rules stay enforced after permission changes (#40004). From 0.154.0, startup no longer executes workspace-controlled helpers before trust is established.
Channel: tagged-release. Half: defect. Date: 2026-08-26 (0.150.0); 2026-09-09 (0.154.0).
Operator consequence: Cloning a hostile repo and opening it untrusted no longer lets it inject instructions or run helpers at startup. Upgrade to >=0.154.0 for both fixes. If your workflow depends on repo AGENTS.md, the project must now be trusted. Check this in CI and in ephemeral checkouts where trust is never granted.
Receipt
Finding metadata
Run: 2026-09-21-weekly-digest-2026-08-20_2026-09-21-frontier-v0
Finding ID: 2026-09-21-codex-untrusted-projects-stop-feeding-agents-md-and-startup-stops-running-workspace-helpers-befo
Accepted signals
Profile citations
- Codex / claim / untrusted-projects-no-agents-md-no-helpers
Source links
Primary links, including exact changelog lines when available.
- github release2026-09-21-codex-untrusted-projects-stop-feeding-agents-md-and-startup-stops-running-workspace-helpers-befoopenai/codex / rust-v0.150.0github release2026-09-21-codex-untrusted-projects-stop-feeding-agents-md-and-startup-stops-running-workspace-helpers-befoopenai/codex / rust-v0.154.0merged pr2026-09-21-codex-untrusted-projects-stop-feeding-agents-md-and-startup-stops-running-workspace-helpers-befogithub.com/openai/codex/pull/39837
Versioned source: run artifact