Distillation

Date: Sep 16, 2026

• 🔴 (14:44) User stated cgroup tests always pass a custom reader, thereby bypassing the production memoryFilesCache; there is no cache-reset seam.
• 🔴 (14:44) User stated a sustained cache-bust spiral past the cold-start grace window is “almost always a real caching bug we want to investigate” (#797).
• 🔴 (14:44) User stated EmbeddingPool fixes ceiling at construction and never lowers its ceiling or retires healthy workers after memory shrinks.
• 🔴 (14:44) User stated cgroup accounting must ensure sibling usage is never subtracted from the wrong scope.
• 🔴 (14:44) User requires Anthropic caching to “never double-place two breakpoints on the same (last) block,” with the invariant documented in /home/byk/Code/opencode-lore-provider-error/packages/gateway/test/anthropic-caching.test.ts:385.
• 🟡 (14:44) Assistant recovered blocking review evidence and identified 9 discriminating regression areas: 1. hybrid cgroup layouts; 2. duplicate cgroup layouts; 3. stale cgroup topology; 4. unknown primary headroom; 5. burst reservations; 6. structured native loader failures; 7. native-only workers; 8. binding-level escapes; 9. generated-worker freshness and log redaction.
• 🟡 (14:44) Current /home/byk/Code/opencode-lore-embedding-runtime/packages/core/src/cgroup-memory.ts implementation parses cgroup v1 memory and v2 memberships, preferring explicit v1 memory membership on hybrid hosts; resolves the deepest matching direct mount or a single unambiguous namespaced mount; rereads /proc/self/cgroup and /proc/self/mountinfo on every discovery; and walks ancestor directories to calculate minimum finite headroom.
• 🟡 (14:44) readLinuxCgroupMemoryHeadroomBytes() in packages/core/src/cgroup-memory.ts returns undefined on malformed values, ambiguous/unresolved topology, unreadable descendant boundaries, or other inspection failures; its sole missing-file exception is the unregulated cgroup v2 root where directory === files.mountPoint and files.root === "/".
• 🟡 (14:44) The required repo-setup skill was unavailable; assistant planned to resume from the exact Jujutsu workspace, recheck repository instructions and current changes, then add fail-first regressions.
• 🟡 (14:45) Loaded jj-guide: repositories containing .jj/ must use jj rather than Git for mutations; interactive flags are forbidden; commit/describe operations require -m "msg"; mutations must be verified with jj st and jj log; stable change IDs are preferred over commit IDs.
• 🟡 (14:45) Repository metadata found at /home/byk/Code/opencode-lore-embedding-runtime/AGENTS.md and package manifests at /home/byk/Code/opencode-lore-embedding-runtime/package.json, packages/core/package.json, packages/website/package.json, packages/pi/package.json, packages/opencode/package.json, and packages/gateway/package.json.