make codex better at git #10145

pash-openai · 2026-01-29T08:51:39Z

adds basic git context to the session prefix so the model can anchor git actions and be a bit more version-aware. structured it in a multiroot-friendly shape even though we only have one root today

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codex-rs/core/src/environment_context.rs

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codex-rs/core/src/environment_context.rs

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codex-rs/core/src/client.rs

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codex-rs/core/src/git_info.rs

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codex-rs/core/src/codex.rs

pash-openai · 2026-01-30T22:42:52Z

codex-rs/core/src/git_info.rs

+) -> Option<std::process::Output> {
+    let mut command = Command::new("git");
+    command.args(args).current_dir(cwd);
+    command.kill_on_drop(true);


added kill_on_drop as a general safeguard - it doesn’t look like any callers rely on git continuing after the future is dropped

codex-rs/core/src/client.rs

aibrahim-oai · 2026-02-02T17:49:12Z

codex-rs/core/src/client.rs

            websocket_last_items: Vec::new(),
            transport_manager: self.state.transport_manager.clone(),
            turn_state: Arc::new(OnceLock::new()),
+            turn_metadata_header,


we can build the header on demand instead of storing it on the session

aibrahim-oai

Let's add an integration test to test the flow e2e

pash-openai · 2026-02-02T23:30:44Z

codex-rs/core/tests/responses_headers.rs

+        .unwrap_or_else(|_| cwd.to_path_buf())
+        .to_string_lossy()
+        .into_owned();
+    for _attempt in 0..10 {


this test is a bit involved (~200 lines) because i have to make multiple requests to verify that headers are eventually sent (because of the async prewarm)

codex-rs/core/src/client.rs

aibrahim-oai

LGTM, we have a lot of helper tests for integration tests that you can use to make the test shorter

pash-openai · 2026-02-03T00:57:13Z

/merge

pash-openai · 2026-02-03T01:00:43Z

LGTM, we have a lot of helper tests for integration tests that you can use to make the test shorter

For posterity, I tried using helper tests to make this test shorter, but in this case they obscured the runtime behavior and made the teest less reliable around the async prewarm timing. So I kept the test explicit on purpose so the behavior is clear and stable - i'll keep an eye on it for follow-ups

pash-openai changed the title ~~make codex better at git~~ feat: make codex better at git Jan 29, 2026

pash-openai changed the title ~~feat: make codex better at git~~ make codex better at git Jan 29, 2026

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Merge branch 'main' into codex/pash/session-workspace-git-context

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pash-openai merged commit 019d89f into main Feb 3, 2026
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make codex better at git #10145

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