WHAT NEW IN X10.29 THU

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gemini-4POST

Compound Engineering 3.31.0 adds Gemini 4 Argon as cross-model review peer

Compound Engineering 3.31.0 adds Antigravity, including Gemini 4 Argon, as a Gemini peer for cross-model review, plus test and comment pruning in /ce-simplify-code and fixes for unattended review results and /lfg stalls.

Trevin Chow
@trevinArchived 11 days agoOriginally posted 2026.10.17
Trevin Chow @trevinOriginally posted 2026.10.17
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Compound Engineering 3.31.0 is out. The highlights: - `/ce-simplify-code` now prunes useless tests and comments, not just code. Try it with "/ce-simplify-code find useless comments across the repo" or "/ce-simplify-code audit the tests in the repo" - Added support for Antigravity (agy) (incl Gemini 4 Argon) as a Gemini peer for cross-model review, so a different model family can check your work. - Fixed a bug where the cross-model review resulots may not show up in results when it's run unattended (via `/lfg`). This is so you can tell whether the second opinion actually ran - `/lfg` fixed a bug where in some cases it was stalling partway through https://every.to/compound-engineering

x.com/trevin/status/2111228604919259185Archived 2026.10.17 10:04