[codex] Refresh SSH agent for app-server proxy#28131
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This was referenced Jun 14, 2026
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Summary
A long-running app-server can retain the
SSH_AUTH_SOCKpath from the SSH session that launched it. Once that session exits, the path points to a deleted socket even though the current proxy connection has a live forwarded agent.Add an opt-in
codex app-server proxy --forward-ssh-agentmode. The proxy validates its inherited agent socket and atomically refreshes a stableforwarded-ssh-agent.socksymlink beside the app-server control socket. If no live agent is available, it removes the stale link.A detached app-server launched with that stable path can therefore follow the current proxy connection across SSH reconnects without changing turn or command execution behavior.
Fixes #22567
Testing
cargo clippy -p codex-cli --tests -- -D warnings