Transcripts sync only after you opt in
gstack 1.91.15.0 asks before gbrain ingests your coding transcripts
transcript_ingest_mode recentLast 90 daystranscript_ingest_mode allEvery sessionno choice yetClaude Code and Codex transcripts skippedgstack's gbrain sync now skips your Claude Code and Codex transcripts until you choose. Recent takes the last 90 days, and all takes everything. Other memory keeps syncing. Older stored answers get asked again, and staged transcript pages wait on disk.
Skills at normal volume for Opus 5.5
Every skill now reads cleanly on Claude Opus 5.5
CRITICAL · IRON LAW · MUSTStacked emphasis that current models over-apply
plain rules, stop conditionsEvery real rule keeps its reason
Anthropic's prompt audit for Opus 5.5 ran over every skill. Stacks of critical and must, which current models over-apply, are now plain rules. Safety wording changed only where an eval shows the model still obeys it.
Skills follow your state root
Skills now read and write your configured state directory
Skills now follow your configured state root instead of the default folder in your home directory. Canary and health history, retro, ship ledgers and plan tune gates stop missing data in custom state directories.
Point releases use the generic overlay
Opus 5.5 and Sonnet 5.5 run on the generic Claude overlay
Opus 5.5 · Sonnet 5.5and other point releases
Opus 4.7 · Opus 4.8 · Sonnet 5bare ID, dated snapshot or -latest
Model overlays changed. Opus 5.5, Sonnet 5.5 and other point releases now get the generic Claude overlay. The Opus 4.7, Opus 4.8 and Sonnet 5 overlays apply only to those exact models. A model flag forces one.
Three behavior fixes
Fewer surprises from suggestions, the browser and CLAUDE.md
CHANGELOG.mdEvery change in 1.91.15.0Turning proactive off now means no suggestions at all. Open gstack browser asks before replacing a live browser. And /sync-gbrain alone writes the CLAUDE.md search block. The changelog lists every change.
