codex

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xl-openai d9511fb788 Refresh MCP HTTP helper headers after authorization failures (#41400 )

## What changed

- Re-run the HTTP headers helper after a same-origin `POST` receives a `401` or `403`, and retry the request once when the effective headers changed.
- Share refreshes across concurrent rejected requests, retain the previous headers when refresh fails, and keep the retry within the original timeout.
- Allow helpers to supply `Authorization` while preserving explicit OAuth or bearer credentials, OAuth insufficient-scope challenges, and redirect safety checks.

## Testing

- Cover rotating helper headers for MCP tool calls and same-origin OAuth token refreshes.
- Cover concurrent rejections, failed and unchanged refreshes, retry limits, timeouts, and redirects.

GitOrigin-RevId: c662edefdb1cd2876d9d02545a72d5bd6739864f

2026-08-28 19:29:51 +00:00

foreign_stdio_cwd.rs

mcp: accept foreign absolute cwd for remote stdio (#29493 )

2026-06-23 01:33:51 +00:00

mcp_2026_discovery.rs

Update rmcp to 3.1.3 (#39798 )

2026-08-20 20:53:17 +00:00

mcp_2026_message_limits.rs

Complete MCP 2026 client support (#35725 )

2026-07-28 06:06:58 +00:00

mcp_2026_mrtr.rs

Update rmcp to 3.1.2 (#39101 )