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Wave D: native AgentEvent wire + client session rewrite (SDK purged)

Browse Source 
Server: ui-stream.ts is verbatim pi AgentEvent passthrough (SSE data
lines + [DONE]); only app-level events are the loop-level error and
turn-settled terminal; onError carries raw provider text (owner ruling).

Client: useChat + the AI-SDK transport replaced by components/session-core.ts
(SessionModel: 409 identity-retry, optimistic c_ appends, absorbed()
adoption, needsContinuation, shared consume for POST + reattach) and the
session.ts hook; the golden-master grouping canon moved client-side into
core/view.ts (projectView); scanners read the native record (phaseAt3Lh,
danglingQuestionOf, graph toolParts, plan-blocks, runner, extraction).

Coverage: the native message is the unit (fork 3) with the call+result
inseparability bond rule; view-line-less messages (markers, error
results) are invisible to coverage and never checkpointed.

Deletes: chat-transport, projection, ui-message, their tests (ported to
tests/session-core.test.ts), and the ai + @ai-sdk/react dependencies —
the Vercel SDK is fully out of the tree. Wire pins in chat-flow rewritten
onto the AgentEvent dialect (eventsOf parser).

Gates: tsc clean, 994/994 tests, eslint clean, build green; live smoke
on PORT=3004 (verbatim wire → native record).
This commit is contained in:
amosblomqvist
2026-09-26 01:52:47 +03:00
parent 7c0e8d9a50
commit f3003d357a
44 changed files with 2299 additions and 2205 deletions
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tests/graph.test.ts
+4 -4
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@@ -20,7 +20,7 @@ import { after, describe, it } from "node:test";
import type { AuditResult } from "../src/core/contracts.ts";
import type { QuestionAnswerData } from "../src/core/question-core.ts";
import type { LhMessage } from "../src/core/native-messages.ts";
import { projectNative } from "../src/core/projection.ts";
import { projectView as projectNative } from "../src/core/view.ts";
import { getGraph, graphSnapshot, mergeFindings, type GraphDeps } from "../src/core/graph.ts";
import { coverageSlots } from "../src/core/coverage.ts";
import { graphStore } from "../src/store/graph.ts";
@@ -33,12 +33,12 @@ const graphDeps = { chatStore, graphStore } as const satisfies GraphDeps;
/** The session merge source for a chat — what the pipeline passes: the live
* transcript + its updatedAt checkpoint stamp. (Notes imports pass
* messages: null — see the notes-merger test below.) */
function sessionSource(chatId: string): { messages: ReturnType<typeof projectNative>; foldedAt: string } {
function sessionSource(chatId: string): { messages: LhMessage[]; foldedAt: string } {
// Wave B: the record is native history — the merger's transcript view
// reads through the one-way projection (same shape the extraction
// pipeline passes: its batch slots are projected messages).
const record = chatStore.getChat(chatId)!;
return { messages: projectNative(record.messages), foldedAt: record.updatedAt };
return { messages: record.messages, foldedAt: record.updatedAt };
}
// ─── ledger isolation (backup-and-clear of data/graph/*.jsonl) ──────────────
@@ -1036,7 +1036,7 @@ describe("session coverage read (extraction-UX redesign, 2026-09-24)", () => {
// Fold the first two messages: the read derives the split + the
// newest fold timestamp from the ledger rows.
const slots = coverageSlots(projectNative(chatStore.getChat(chat.id)!.messages));
const slots = coverageSlots(chatStore.getChat(chat.id)!.messages);
graphStore.appendCoverage({ chatId: chat.id, fp: slots[0]!.fp, tokens: slots[0]!.tokens, foldedAt: "2026-09-24T10:00:00.000Z" });
graphStore.appendCoverage({ chatId: chat.id, fp: slots[1]!.fp, tokens: slots[1]!.tokens, foldedAt: "2026-09-24T11:30:00.000Z" });
// Another session's row must not leak into this read.