ee 54f99017f2 Refresh rejected proxy credentials and back off failed renewals (#55299)
## Why

The Responses API proxy could reuse a federated credential after an upstream `401`, and concurrent requests could each retry a failed token exchange.

## What changed

- Invalidate the rejected credential so the next request obtains a fresh token. Forward the `401` without replaying the request or waiting for an ongoing renewal; leave credentials intact on `403`.
- Track rejection per token issuance so a late `401` cannot invalidate a newer credential.
- Back off failed exchanges exponentially from 1 to 30 seconds, starting when the exchange fails. Reject requests during backoff without reusing the old token, and reset the delay after a successful exchange.

## Testing

Add tests for response forwarding without replay, late and concurrent rejections, shared renewal failures, backoff timing and reset, and credential-safe renewal errors without following redirects.

GitOrigin-RevId: eb1ed6848d74fdba1534919cace5126f4a0595cf
2026-10-19 15:08:50 +00:00
2026-04-24 17:49:29 -07:00
2025-04-16 12:56:08 -04:00
2025-04-16 12:56:08 -04:00
2026-04-24 17:49:29 -07:00
2026-08-21 16:45:05 +00:00

Codex CLI is a coding agent from OpenAI that runs locally on your computer.

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If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
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Installing and running Codex CLI

Run the following on Mac or Linux to install Codex CLI:

curl -fsSL https://chatgpt.com/codex/install.sh | sh

Run the following on Windows to install Codex CLI:

powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"

The standalone installers download from https://releases.openai.com/codex by default and fall back to GitHub Releases if a metadata or asset download is unavailable. To force GitHub Releases, set CODEX_INSTALLER_USE_RELEASES_OPENAI_COM to false (0 and no are also accepted):

curl -fsSL https://chatgpt.com/codex/install.sh | CODEX_INSTALLER_USE_RELEASES_OPENAI_COM=false sh
$env:CODEX_INSTALLER_USE_RELEASES_OPENAI_COM='false'; irm https://chatgpt.com/codex/install.ps1 | iex

Codex CLI can also be installed via the following package managers:

# Install using npm
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# Install using Homebrew
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Docs

This repository is licensed under the Apache-2.0 License.

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