Skip to content
Sign in
Artwork for The Codex Changelog
The Codex Changelog · July 19 · 9 min

Alpha Compaction Bug Wipes Long-Running Context

We dig into a nasty alpha bug where switching models or reasoning effort can trigger silent context compaction, wiping out most of a long-running session and even pruning the underlying SQLite state. The episode also covers practical mitigations like thread pinning, plus a VS Code sidebar crash loop caused by the bundled CLI and a discussion of better safeguards for developers.

0:00-9:16
Play in
Transcript file

transcript

No transcript — this publisher did not publish one.

show notes

We dig into a nasty alpha bug where switching models or reasoning effort can trigger silent context compaction, wiping out most of a long-running session and even pruning the underlying SQLite state. The episode also covers practical mitigations like thread pinning, plus a VS Code sidebar crash loop caused by the bundled CLI and a discussion of better safeguards for developers.

more episodes

All episodes