diff --git a/.github/workflows/codex-mention-response.yml b/.github/workflows/codex-mention-response.yml
index 369c2d31..80fb622d 100644
--- a/.github/workflows/codex-mention-response.yml
+++ b/.github/workflows/codex-mention-response.yml
@@ -129,6 +129,8 @@ jobs:
           responses-api-endpoint: ${{ secrets.OPENAI_BASE_URL }}
           model: ${{ vars.OPENAI_MODEL || 'gpt-5.4' }}
           effort: ${{ vars.OPENAI_EFFORT || 'high' }}
+          # Tolerate flaky relay streams: more reconnects, longer idle timeout
+          codex-args: '-c model_providers.codex-action-responses-proxy.stream_max_retries=10 -c model_providers.codex-action-responses-proxy.stream_idle_timeout_ms=600000'
           sandbox: danger-full-access
           safety-strategy: drop-sudo
           prompt-file: .github/prompts/codex-mention-response.md
diff --git a/.github/workflows/codex-pr-review.yml b/.github/workflows/codex-pr-review.yml
index c31c7562..d32ce9cd 100644
--- a/.github/workflows/codex-pr-review.yml
+++ b/.github/workflows/codex-pr-review.yml
@@ -119,6 +119,8 @@ jobs:
           responses-api-endpoint: ${{ secrets.OPENAI_BASE_URL }}
           model: ${{ vars.OPENAI_MODEL || 'gpt-5.2-codex' }}
           effort: ${{ vars.OPENAI_EFFORT || 'high' }}
+          # Tolerate flaky relay streams: more reconnects, longer idle timeout
+          codex-args: '-c model_providers.codex-action-responses-proxy.stream_max_retries=10 -c model_providers.codex-action-responses-proxy.stream_idle_timeout_ms=600000'
           sandbox: danger-full-access
           safety-strategy: drop-sudo
           prompt-file: .github/prompts/codex-pr-review.md
diff --git a/.github/workflows/issue-auto-response.yml b/.github/workflows/issue-auto-response.yml
index 2e2ff7f9..fb2ade44 100644
--- a/.github/workflows/issue-auto-response.yml
+++ b/.github/workflows/issue-auto-response.yml
@@ -75,6 +75,8 @@ jobs:
           responses-api-endpoint: ${{ secrets.OPENAI_BASE_URL }}
           model: ${{ vars.OPENAI_MODEL || 'gpt-5.4' }}
           effort: ${{ vars.OPENAI_EFFORT || 'high' }}
+          # Tolerate flaky relay streams: more reconnects, longer idle timeout
+          codex-args: '-c model_providers.codex-action-responses-proxy.stream_max_retries=10 -c model_providers.codex-action-responses-proxy.stream_idle_timeout_ms=600000'
           sandbox: danger-full-access
           safety-strategy: drop-sudo
           prompt-file: .github/prompts/issue-auto-response.md