dcb839232ccc07511867fdd41d9d0952ff2a8fec
7
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 amosblomqvist
|
c86430e8bf |
Wave 7 chunk B: remove the embeddings machinery — the ladder collapses
The owner's wave-7 ruling: embeddings die entirely (git history is the
stash); clustering is birth-session derived (chunk A, 950ddfd), labels
are session names, and the prober's graph tools replace injection.
- settings: GraphSettings collapses to { enabled } — embedding,
embeddingModel, clustering, labeling all die. Migration story: stale
record keys are UNREAD and dropped by the sanitizer's reconstruction;
the next graph-section PUT (replace-whole) persists the collapsed
shape. The settings-panel GraphSection renders one master row.
- deleted: src/server/embeddings.ts (adapters, resolveEmbeddingPortFor,
embedNewNodes, embeddingPort, embeddingModelCatalog), the
GET /api/models/embeddings route, scripts/embed-graph.ts, tests for
all three, and the /api/models/embeddings picker surfaces in the UI.
- prices: EMBEDDING_PRICES overlay + callCost fallback die. cost-summary:
the embedding stage fold dies — back to three stages (extraction/
audit/naming) per the owner ruling; historical stages.embedding spend
in old run records is simply not displayed.
- ports: EmbeddingPort/EmbeddingResult/EmbeddingTask die. The embeddings
LEDGER surface (readEmbeddings/writeEmbeddings + EmbeddingsLedger +
EMBEDDINGS_FILE + graph-deletion's vector pruning) STAYS — inert data,
kept only so graph-context.ts compiles until Teacher's pass removes
it; the seam dies in the follow-up interlude.
- chat-handler (approved cross-lane unwiring, wave-6 precedent): the
extraction pipeline's embedder becomes a documented no-op (nothing
embedded, nothing spent, ledger untouched) until Teacher's pass
removes the phase; the graph-context injection dispatch gate, the
graphContext deps wiring, the setContextRespawn seam, and
turn-service's triggerGraphContext are gone — injection is dead
code pending Teacher's file deletions.
- scripts: backfill-graph/import-notes pass the same no-op embedder;
replay-layout derives clusters from birthSessionPartition (the same
partition the real settle uses) instead of the embeddings ledger.
- settings-body: parseGraphSettingsBody reads the master switch only —
old-shape keys in a body are ignored, not rejected; bad shapes 400.
- next.config: the @huggingface tracing-exclusion guards die with the
last reference.
Cross-lane flags: extraction.ts/graph-context.ts keep stale embed
comments + the embed phase until Teacher's full pass (their parallel
interlude owns those files — zero overlap kept by design);
semantic-clusters.ts + its test stay one more round (extraction.test.ts,
Teacher's file, still imports it — they delete it with the namer cases);
ChatSettings.graphContextTokens + the graph-context-control UI stay
until Teacher+UI.
Gates: tsc clean, eslint clean, 885/885 tests, build compiles.
Live-verified on the port-3004 dev tree: PUT /api/settings/graph with
dead keys collapses on write, bad shapes 400, GET reads {enabled: true},
/api/models/embeddings 404s.
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amosblomqvist
|
0a4a9a11de |
BYOK provider embeddings (wave 6 chunk B): kill local transformers
Replace the @huggingface/transformers local embedder (~316MB ONNX cache) with an EmbeddingPort seam: graph.embeddingModel (nullable "provider:id" slug) selects an OpenRouter/OpenAI/Gemini adapter, resolved fresh per call from settings + the auth store so key rotations land immediately. - src/server/embeddings.ts rewritten: slug grammar, injected-fetch adapters (OpenRouter input_type, Gemini taskType batching, OpenAI index-ordered rows), honest resolution (null = skip-with-info, set model with missing key = honest error), embedNewNodes with model-change re-embed wipe + ghost pruning + usage steps, federated catalog (OpenRouter /api/v1/embeddings/models — VERIFIED live, the inverse path 404s; OpenAI text-embedding- filter; Gemini embedContent filter). - GET /api/models/embeddings: federated catalog, empty when no keys. - Extraction tail records stages.embedding usage into the run's money channel; EMBEDDING_PRICES overlay in core/prices.ts (outside the sync-generated block), callCost falls back to it; cost-summary folds the fourth stage; graph-context injection resolves its embedder per run, fails honestly when unconfigured, records query tokens. - Settings: GraphSettings.embeddingModel (null factory), section parser validates slug shape (id may contain colons — OpenRouter :free suffixes, live catalog fact). - Removal: @huggingface/transformers uninstalled, PATHS.modelCache and onnx tracing entries deleted, @huggingface tracing-excludes guard added, stale sharp/libvips comments updated to historical. Live-verified on port 3004: catalog federates 36 rows (33 OpenRouter + 3 OpenAI), embedNewNodes embedded 10 nodes via the free liquid/lfm-2.5 model (dim 1024, 435 prompt tokens, 1 call, $0), settings PUT rejects bad slugs with 400. Gates: typecheck, lint, 895/895 tests, build. |
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|
amosblomqvist
|
2780166904 |
fix(pdf): make pdfjs survive bundling + real-PDF font fidelity (live smoke)
Live dispatch smoke against the Turbopack dev server (master's ask, 2026-09-19) caught two things unit tests cannot - they run unbundled: - Bundling pdfjs-dist broke its node fake-worker: the chunk-relative pdf.worker.mjs import 404s inside .next/dev/server/chunks. Fix: serverExternalPackages + tracing includes for legacy/ + standard_fonts/ (next.config.ts - a clearly-marked seam, same precedent as bcdcd51; the standalone output now ships the worker and font files, verified). - Real-world PDFs warned about missing standardFontDataUrl (non-embedded standard fonts silently fall back) and flooded the log with JBIG2 warnings on scanned files. Fix: standardFontsDir() + verbosity 0 in both the node ops and the headless canvas shim. Verified live end-to-end on GEB (802pp, text layer): teacher dispatch, 12-step read with vision renders, brief with accurate page citations, wake turn folding the resolution (Chapter IX, pp. 268-270) into the lesson. Scanned/DRM Polya correctly refuses to fabricate citations. |
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amosblomqvist
|
7902984bd6 |
feat: Electron desktop wrapper — LearnHarness.app (macOS arm64)
The web app becomes a desktop app without changing shape: the Electron
shell spawns the Next standalone server on a loopback port and points a
sandboxed window at it. All app logic stays in the Next server.
Bands:
1. LH_DATA_DIR seam (config.ts): PATHS.data/chats/graph derive from
process.env.LH_DATA_DIR (else repo data/, unchanged in dev). New
PATHS.modelCache routes the transformers.js embedding-model cache
(~300MB) to <data>/models when the seam is set — the default cache
inside node_modules is read-only in a packaged bundle. All existing
fs writes flow through PATHS; teacherPrompt stays ROOT-anchored
(read-only asset, ships inside the bundle by design).
tests/data-dir-seam.test.ts covers set/unset via child process.
2. Standalone build (next.config.ts + scripts/build-server.mjs):
output 'standalone'; outputFileTracingExcludes data/**/* keeps the
repo's real session data out of the bundle (verified: an unexcluded
scratch build traced 34 files / 716K of real chats + ledgers).
Two empirically-verified tracer gaps required outputFileTracingIncludes:
pi-ai's provider catalog (JSON import attributes — 39 files, 500s on
/api/models without them) and onnxruntime-node's sibling dylib
(libonnxruntime.dlopen via @rpath). build-server.mjs copies public/
and .next/static per docs, refuses a leaked data/ dir, and asserts
the runtime-read prompt .md assets are traced.
3. Electron shell (electron/main.cjs, no preload):
- single-instance lock (two instances would fight over the data dir);
- free port via listen(0); spawn via process.execPath +
ELECTRON_RUN_AS_NODE=1 with PORT/HOSTNAME=127.0.0.1/LH_DATA_DIR;
- BYOK: userData/auth.json, flat {VAR: value} JSON, mode 0600,
merged into the child env only when absent from the real env
(auth UI is the settings milestone; file is hand-editable);
- poll until the server answers (no ready event), then open a
contextIsolation+sandbox window; deny-by-default permission
handler (media allowed only from the loopback origin — mic/STT
groundwork); will-navigate pinned to origin, window.open denied
with external links to the system browser; macOS Edit-menu roles;
- quit path SIGTERM→3s→SIGKILL + exit/SIGHUP nets; child stdout
mirrored to userData/logs/main.log;
- dev mode via LH_DEV_URL: no spawn, points at next dev (HMR).
4. Packaging (electron-builder.yml + build/entitlements.mac.plist):
files = electron shell only; the whole .next payload ships via
extraResources from .next (filter standalone/**/*) — NOT from
.next/standalone directly: electron-builder hard-excludes a copy's
root node_modules and the default pattern is a literal match, so
node_modules/ and .next/ were silently dropped and the server died
with 'Cannot find module next'. Asar holds no native code.
Unsigned (identity: null) until a Developer ID cert exists; hardened
runtime + audio-input entitlements laid now for the STT milestone.
desktop:dev / desktop:dist scripts (electron 44, electron-builder 26).
Live smoke of the packaged .app: server up on a random loopback port,
all API routes 200, a real GLM chat turn answered end-to-end via
auth.json BYOK, chat persisted under userData/data, second instance
exited via the lock, no orphaned server child after quit.
Gates: typecheck, eslint, 500/500 tests (+2 data-dir-seam), build.
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amosblomqvist
|
f5edc7f0a5 |
Semantic topic clusters: local embeddings replace Louvain
Louvain only ever found the reasoning chains (the graph is disconnected by nature — every connected component became its own cluster) and edge-orphans could never join anything. Clusters are now RELATED TOPICS: propositions grouped by meaning. - Embedder (src/server/embeddings.ts): in-process transformers.js v4 running EmbeddingGemma-300M q8 (MTEB 68.4, ~300MB one-time download), MRL-truncated to 512d, "title: none | text:" prefix on 100% of inputs, L2-normalized so cosine = dot. Model/dim mismatch voids the ledger (full re-embed). Injected at the composition root — the agent layer never imports the server layer (architecture law). - Ledger (data/graph/embeddings.json): model + dim + vectors + the persisted cluster partition. Reclustering runs at the END of every embedding batch (post-merge hook, both front doors) — never per read (the agglomerative pass is ~1.5s at 338 nodes). - Clustering (src/core/semantic-clusters.ts): hand-rolled average-linkage agglomerative over cosine (npm HDBSCAN is an abandoned alpha). Stragglers stay singletons by default; attachStragglers is the all-in toggle. Threshold 0.60 swept on the real graph: 26 topics, 74/90 edge-orphans land in real topics, 10 stragglers. - Consumers (snapshot, settle, namer, replay) read the persisted partition — one cluster concept everywhere; core-survival label matching unchanged (20/26 topics kept labels). - Louvain retired: detectCommunities + graphology* deps deleted (graphology-louvain had leaked into the client bundle since the clusters wave); scripts/bench-graph.ts (dead FA2 bench) removed. - scripts/embed-graph.ts: backfill/cold-start (338 nodes in 150s including the one-time model download). |
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amosblomqvist
|
2d717fd932 |
Swap the server engine to pi-ai/pi-agent-core (Band B+C of docs/pi-engine-swap.md)
The Vercel AI SDK survives only as Band D (useChat client + UIMessage
record types); @openrouter/ai-sdk-provider is uninstalled.
- src/agent/models.ts: PiEngine {model, streamFn} via createModels +
openrouterProvider subpath; thinkingLevelFor maps config effort none->off
- src/agent/lh-tool.ts: neutral LhTool (zod authoring, optional execute,
clientQuestion flag); toPiTool converts via z.toJSONSchema and re-runs
zod inside execute so refinements ride the error-result retry path
- src/server/pi/record-adapter.ts: UIMessage records -> pi Messages
(dangling tool calls get synthesized interrupted results)
- src/server/pi/ui-stream.ts: SSE bridge emitting AI-SDK-shaped chunks so
the useChat client parses unchanged (continuation id rule, question
tools never emit output, tool-input-error for bad authoring)
- teacher-agent.ts: stateless per-turn pi Agents; shouldStopAfterTurn
stops only when every question-tool call resolved cleanly (errors retry)
- chat-handler.ts: buildAgent(outgoing) factory seam (stateless doctrine);
assertValidUiMessages owns the retired SDK validation gate
- sub-agents via shared runSubagent (pi-run.ts); extraction stages stop
after a clean submit; visual-maker keeps its hand-rolled loop over
direct streamSimple calls; aborted model calls bill no usage
- tests: all model seams ported to pi-ai faux provider (scripted
FauxResponseSteps, agent factories); handleChatRequest second param
is now an agent factory
Gates: tsc, lint, build, 305/305. Live GLM smoke (disposable driver,
deleted): prober streaming + persistence, question seam, turn-2
continuation same message id, per-turn real token usage - ALL PASS.
Data wiped at the pivot (chats/graph/jobs, .gitkeeps kept).
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Amos
|
a72c902d30 |
v3: AI SDK pivot — pi removed, Next.js 16 + AI SDK 7 + AI Elements teacher app
The teaching agent no longer runs on pi. Stack: - ToolLoopAgent (ai@7) + OpenRouter (OPENROUTER_API_KEY), model via LH_MODEL, default anthropic/claude-sonnet-4.5 with reasoning tokens - quiz/ask_user_question = client-side tools (no server execute): the call lands as a typed tool part in input-available state; the card grades via src/core/question-core.ts; addToolOutput sends the verdict; the teacher's reaction continues the same assistant message - resume-mid-quiz is free: the pending tool part persists in the transcript - persistence: one JSON per chat (data/chats/), full UIMessage transcripts, saved onFinish (also on abort) - UI: AI Elements (owned copy-paste components, pruned to the five in use) + button-based QuizCard/AnsweredCard (ask answers never graded) - pi fully removed: TUI, extensions, Fastify+WS server, bridge, custom protocol all deleted (recoverable from git history) - tests: question-core units carry over; chat-flow integration drives handleChatRequest with MockLanguageModelV4 (48 tests, zero tokens); render smoke tests guard the cards (renderToStaticMarkup) Carried over unchanged: teacher system prompt, question-core, schema/ ledger/derive/extract pipeline, data model. |