Codex CLI bricks every command after an update — the wire_api config trap

📰 Dev.to AI

Fix Codex CLI errors after updating by checking the config.toml file for stale wire_api config blocks

intermediate Published 1 Sept 2026

Action Steps

Check the config.toml file for stale wire_api config blocks
Remove or update the wire_api = chat line to fix the error
Run Codex CLI commands again to verify the fix
Update the config.toml file to ensure compatibility with the latest Codex CLI version
Test the Codex CLI with different commands to ensure everything is working as expected

Who Needs to Know This

Developers and DevOps teams using Codex CLI will benefit from this solution to resolve errors and get back to work quickly

Key Insight

💡 A single stale line in the config.toml file can cause the entire Codex CLI to fail

Key Takeaways

Fix Codex CLI errors after updating by checking the config.toml file for stale wire_api config blocks

Full Article

If you updated Codex CLI recently and suddenly every command dies with Error loading config.toml , it's probably not your setup. One stale line in a config block you might not even use anymore is enough to brick the whole thing. I ran into this exact pattern, and here's the fix. The symptom Upgraded to Codex 0.151.0, then: Error loading config.toml: `wire_api = "chat"` is no

Read full article → ☆ Save to playlist ← Back to Reads