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Make the kernel transcript the authoritative cross-turn context (quality P2-I2) #115

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weichen merged 3 commits from feature/agent-quality-phase02 into main 2026-10-09 16:26:51 +00:00
Conversation 0 Commits 3 Files Changed 9
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3 Commits
Author SHA1 Message Date
weichen 8c17a2228b Merge origin/main into feature/agent-quality-phase02
ci / vet-and-test (pull_request) Successful in 42s
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2026-10-09 16:25:22 +00:00
weichen 81da190ac1 Merge origin/main into feature/agent-quality-phase02
ci / vet-and-test (pull_request) Successful in 42s
Details
2026-10-09 16:18:24 +00:00
weichen 4675a25c18 Make the kernel transcript the authoritative cross-turn context 
Why: Every turn rebuilt context from UI messages with 160-char tool-result
summaries and truncated arguments (quality diagnosis root cause 1). The kernel
session transcript already persists full-fidelity messages; P2-I2 switches the
direct path to it as the authority, per the approved plan (Documents
2026-10-09 §4 P2, user ruling 2).

First run (or after structural divergence) seeds the transcript once with the
full ctxasm assembly; later runs pass only the current user message. Dynamic
context - tail notes (personal instructions, session notes, world-book
entries), env update (date, workspace files) and newly hit task-layer prompt
modules - refreshes once per non-seed run via Reminders, so the frozen seed
system prompt stays accurate. Structural divergence (excluded messages,
variant switching, regeneration) changes a fingerprint and reseeds the
transcript from the message store - the regenerate/exclude/variant mapping.
Legacy transcripts without a fingerprint are adopted, not wiped, preserving
crash-pairing repair. Near the window threshold a 9-section compaction
(aux.session-compact, extractive fallback) summarizes older turns with the
kernel's append-only compaction entry; the kernel request-side micro-clear
still bounds within-run spikes. Backend's nested agent-native pin moves to
the reasoning-capture/replay kernel head.

Evidence: SELF - new tests TestContextRevisionStableOnAppendAndChangesOnDivergence,
TestTranscriptReseedsOnVariantSwitch, TestBuildCurrentUserCarriesAttachmentsAndKnowledge;
TestDirectRunSeedsStoreHistoryOnce updated to authoritative semantics; go vet
+ go test ./... pass; live before/after on the golden task set recorded on
the phase02 task card per the policy clause.

Impact: Direct conversations with a workspace sandbox now carry full tool
results, arguments and attachment text across turns; MiniMax thinking replays
from the transcript via the kernel change. No-conversation fallback keeps the
pre-I2 assembly path.
 2026-10-09 15:38:33 +00:00