a86a4622fb24e627249ccdf224bf6caa97c3b761
27
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
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643e7596f0 |
streaming: connection diet — the parallel-session freeze, fixed
Root cause (postmortem, verified live): Chromium caps 6 concurrent
HTTP/1.1 connections per origin. Every running turn pinned slots for
its whole life — the POST /api/chat response stream plus a reattach
GET stream per visit that never closed on navigate-away — so two
concurrent thinking sessions starved navigation RSC fetches in the
browser queue (147s measured) until the turns settled. Server was
exonerated (3ms curls during the freeze); main thread idle throughout.
- COMPACTION LAW + WIRE DIET (ui-stream): store the states, not the
chunks — replace-in-place snapshot retention keyed by updateSlots,
~100ms coalesced latest-wins fan-out, slim wire drops pi's duplicate
assistantMessageEvent payload.
- DIET B: POST /api/chat acks and closes ({ok:true}) — the turn wire
is GET /stream for everyone, submitter included; send() reattaches
via refetch-first resumeStream(true).
- DIET A: unmount cleanup calls model.stop() — navigating away aborts
the view connection (turns are server-side background objects).
- Answer-flicker fix: resumeStream's eager tail clear moved off the
refetch path (the refetch swaps base+tail atomically; clean-slate
guard restored on refetch failure) — the optimistic answer card
survives refetch latency (1.7s stalls measured on dev).
- Tests converted to the ack contract (drainTurn/drainRunning helpers,
dietFetch mock) + a pin that the POST body reads while the turn runs.
Gates: 1489/1489, typecheck, lint. Live: dual streaming sessions,
navigations 335-648ms, in-page settings 19ms (was 147s).
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34f498b128 |
artifacts: the height ratchet fixed, invert switch persisted + restyled (release polish 7.2)
- bridge measures the BODY (scrollHeight + rect + margins) instead of the viewport-clamped documentElement — documentElement.scrollHeight latches at the parent's own height, so demos could grow but never shrink on window resize (owner-reported); smoke: 1036 → 2386 → 1036 px - invert now PERSISTS as details.ui.inverted on the steer record, written by the silent artifact-ui route (dismissal pattern: no wake, no SSE) and seeded through the projection (SubagentArtifactData.ui); survives navigation + reload, never enters teacher context or exports - invert restyled as the house Toggle switch (settings controls) on both cards; demo header is the caption grammar: 'INTERACTIVE DEMO — title' left (title normal-case, same size/tracking), switch + download far right; figure header: label left, switch/download/open far right 1439 tests green (route + pure-seam pins added); live smoke passed |
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0b2e4e03fb |
sessions: export as markdown — the sidebar right-click, the route, the practice join (release polish 3)
Owner round (2026-10-06): markdown export of sessions, actioned from
the sidebar context menu — "Export as Markdown…" sits with the
management actions, above Delete (the destructive action stays last).
- GET /api/chats/:id/markdown (404 unknown): the whole session as one
attachment — text/markdown; charset=utf-8, filename from the slugified
title ("relational-databases-joins-normal-forms.md", non-ascii titles
fall back to "session.md"). Both session kinds export.
- The client is a same-origin anchor download; the route's
Content-Disposition names the file.
- sessionMarkdown's user-facing debut — minted ANCHORLESS (message-id
anchors are extraction provenance, not learner-facing). The engine
joins the core barrel (pure, browser-safe) for its first consumer.
The practice join (owner-approved mid-round): practice tool results are
bare acks — statement, outcome, verdict, and the model solution all
live in the assistant's call arguments. The engine now folds them the
same way the view seam folds cards: Problem blocks render the pose's
statement (solution never leaks at pose time); Concluded blocks render
the outcome as prose ("Solved with hints.") + verdict, then the
pose-committed model solution as a blockquoted reveal via
problemInputForConclude (clean-poses-only, its refusal law). A
dismissed problem concludes as "The learner skipped this problem." —
no reveal. Errored poses render nothing (the failed-tool law).
1427 tests (route pins: headers, slug, anchorless body, 404; engine
pins: pose-time statement, the reveal, the dismissal refusal, the
errored-pose silence); tsc, lint, build green.
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a2db80b72d |
compaction: the usage-anchored trigger + visible session state (round 15)
The relational-databases incident, diagnosed and fixed: TRIGGER — pi's estimator law, adopted exactly: anchor on the last assistant message's provider-reported usage (totalTokens || the field sum) and chars/4-estimate ONLY what was appended after it. The anchor scan skips aborted/zero-usage assistants and STOPS at the newest compaction marker (pre-cut usage described context the next request will not carry — pi's distrust rule). The old estimator (JSON.stringify of every message /4) tripled the true context (measured: 84,412 'tokens' estimated vs 38,799 provider-reported on the incident record) — scaffolding, escaped LaTeX, thinking blocks and app-side details all counted. estimateMessageTokens now counts wire text only (text + thinking + toolCall name/args; content text for user/toolResult/custom). The unanchored fallback runs the plain heuristic over the CUT-HONORED projection plus the additive prompt term; the anchored path adds nothing (usage already billed prompt and tools). OBSERVABILITY — compaction is a visible session-wide state (owner spec): the transcript-bottom placeholder register gains COMPACTING CONTEXT… (BrailleSpinner + Shimmer, the THINKING placeholder's twin, mutually exclusive by construction — the gate precedes beginTurn), and the sidebar row shows 'Compacting context · <ago>' with the spinner (sessionMeta outranks busy; compacting-changed joins turn-started/turn-settled as refresh triggers). Liveness rides the API like turn-busy: ChatListItem.compacting + compactionInFlight on both GET /api/chats and GET /api/chats/[id] (initiallyCompacting covers the navigate-back-mid-compaction mount — the event already fired), exported through the server barrel. Also: the relational-databases record rolled back to pre-compaction (marker, post-marker turns, tree reset; backup in /tmp) for a clean retest. The summarizer-usage 'gap' was a misread — steps[] was populated all along. |
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85022ae143 |
practice hardening: weak-model argument heal + parked dismissals mid-turn
The GLM incident (2026-10-04): glm-5.3 sent mode as a JSON-string-encoded
enum ('"recall"') on 19 consecutive problem calls; TypeBox's error never
named the expected values, so the model re-emitted the identical payload
until the dev server was killed. And mid-turn the learner was trapped:
Esc's question/problem rungs only dismissed — the dismiss route 409'd
against the turn-owned record and nothing could stop the running turn.
- healEncodedArguments (practice.ts, the prepareArguments seam): a STRING
where the schema expects a literal union / boolean / null / number /
array is JSON.parse-d and kept when it satisfies the schema. Valid args
pass through untouched (same reference); unhealable values stay for
validation to reject honestly. Wired on BOTH problem and conclude.
- dismissal-park.ts: the dismiss route parks a mid-turn dismissal (202);
the turn's settle path (onFinish, after persistTurn, before endTurn —
the same ordering law as the record write itself) applies it against
the persisted record, only if the dismissed thing really is pending.
- confirmAbort: question/problem discard while busy now ALSO aborts the
in-flight turn; the dialog line says so (busy prop).
No error-result cap (owner ruling). 16 new pins (heal incl. pi-ai
validateToolArguments end-to-end; park registry, apply paths, the 202
route contract).
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90893ae236 |
graph context: a separate marker message before the first user turn
The map picks no longer glue into the opening prompt as seed text
(owner, 2026-10-04 late). POST /api/chats accepts graphContext
{propositions}; the route resolves the picks against the live graph,
derives the reasoning chains among them (chainsForSelection →
formatChainLine), and writes a graph-context custom marker as
message[0] — before the learner's first user message, in either mode.
- Core: newGraphContextMessage (model-facing content = the
contextualization framing + proposition lines + chain lines;
details = the structured pick); toLlmMessages flattens it to a user
message like every marker, so the model reads it for free.
- View: projects to a user-side data-graph-context part.
- UI: GraphContextCard — minimal, muted, dashed, collapsed by default
(counts only); expand reveals name — statement rows and the chain
lines. Same compact-expandable pattern as the practice cards.
- Home: sends graphContext with the creation whenever picks exist;
the prompt param carries the learner's own words only.
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7dcb006cf3 |
session kind: ChatRecord.kind teach|practice (absent = teach)
Practice sessions (owner, 2026-10-04): the marker rides the record and
the normalized summary (absent field reads as teach — pre-practice
records never migrate); POST /api/chats accepts {kind: 'practice'}.
The agent branch, tools, and UI land in the following slices.
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5271ca0e4a |
composer steering: the general steering machinery (owner arc 2026-10-03)
STEERING, NOT FOLLOW-UPS — pi-agent-core's two rails, used deliberately:
agent.steer() injects at the next response boundary INSIDE the live run
(one logical turn, the model changes course); followUp() would only extend
an ended run — not built. The same rail job markers already ride
(steeringMode 'all', the 2026-09-26 doctrine).
- POST /api/chats/[id]/steer: 404/400 honest guards; no live turn → 409
and the client silently falls back to a plain text send (the settle
race); live → steerLiveChat hands the message to the live agent's
steering queue AND parks it in the userSteers registry — the stranding
safety net. A steer stranded behind a question termination or abort
stays parked and rides the chat's NEXT run (handOffEligible), the same
deliver-or-requeue lifecycle as job markers. Reconciliation at settle:
delivered ids drop (reconcileUserSteers).
- Client: steer(text) queues + POSTs without flipping any turn state;
the drain's verbatim message events upsert the real user card by the
client-minted id (steer_<localid>) and the indicator fold drops the
line. canSend no longer gates on turnInFlight — Enter mid-turn steers;
Enter with an empty composer still stops; the square button stays Stop.
- The queued-steer indicator (owner spec): quiet one-liners above the
composer shell — right-aligned to where its corner rounding starts,
truncated with an ellipsis, fixed max width, ~half opacity, no
background, no container. Tunable later.
- Verified from pi-agent-core source: steering drains per completed turn
inside the loop; injected messages emit message_start/end verbatim;
finishTurn {action:'end'} (our question stopper) exits BEFORE the
steering poll — hence the registry.
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673a430d6e |
question dismissal, A2: the silent write + the dismissal pause (owner design 2026-10-03)
- {type:"dismiss"} input event: parse + pure appends with the answer-event
orphan discipline (dangling-call 400, kind match, answer must be dismissed)
- POST /api/chats/[id]/dismiss: the no-turn composition — write-ahead append,
409 while a turn runs, emits record-changed (new bus word; idle views sync)
- needsContinuation: an all-dismissed trailing batch demands nothing;
endsInDismissal = the derived pause predicate (tail-based, no latch)
- wake pipeline: while the record ends in a dismissal the pump holds every
delivery in the steer queue — the user's next send is the wake (until the
text-turn steer claim lands, settlement re-pump delivers right after it)
- session-core.dismissQuestion: optimistic skipped card + silent POST;
chat.tsx confirmAbort question-mode swaps submitAnswer for it; ESC-abort
popup everywhere (AbortTurnDialog) with popup-Esc claimed via state gate
- parallel question calls dismiss call-by-call (results bind by id)
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3e9a85d60f |
per-session models: every session owns its model + thinking level from birth
The reported bug (2026-09-28): every chat ran glm-5.3-flash regardless of any pick, while composer and settings UIs agreed with each other and lied about the run. Root cause: a fossil default-settings record (settings.json chat section, frozen pre-slots-wave) was stamped verbatim into every new chat at birth by the new-session flow, and resolveConversationSpec prefers the per-chat record over the strong slot forever. Owner redesign — models are per session, always; the strong slot is the new-session default: - POST /api/chats stamps the newborn verbatim from the strong slot (model + thinking level); no client settings PUT on create anymore - the composer control is dual-bound: in-session it reads/writes the session's own record (GET /api/chats/:id, PUT .../settings); on the draft surfaces it binds the strong slot (picking there = changing the default) - thinking levels follow the identical mechanics (confirmed by owner) - the zombie default-settings system dies whole: useDefaultSettings, /api/settings/defaults, src/store/default-settings.ts, the chat section of UserSettings (sanitizer strips fossil copies), the legacy default-settings.json fold, and DEFAULT_SETTINGS_FILE - catalogDefaultsFor collapses to the strong slot alone - thinking display for a legacy unstamped session resolves exactly like the engine (session ?? strong ?? model ladder) Tests: new chat-birth-stamp suite pins the stamp, the unconfigured boot, the unset level, and the copy-not-live-view regression; defaults pins rewritten strong-only; legacy-migration suite deleted. |
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f3003d357a |
Wave D: native AgentEvent wire + client session rewrite (SDK purged)
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). |
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7ab47d4fcb |
Wave B: the native message record — input events, projection, adapter death
The chat record is now pi-native agent history (LhMessage[]), the AI SDK's
UIMessage transcript contract is gone from the server, and every client turn
arrives as ONE explicit input event.
Core (new):
- src/core/native-messages.ts — the LhMessage taxonomy (user/assistant/
toolResult + lhMarker customs: verdict, probe-handoff, subagent-steer,
subagent-abort, plan-block), constructors, and toLlmMessages — the single
model-facing seam (convertToLlm): strips ids, flattens markers to user
text, drops UI-only plan-blocks, synthesizes INTERRUPTED results for
dangling aborted calls, never throws.
- src/core/projection.ts — projectNative: the one-way native → UIMessage
projection (consecutive assistant+toolResult runs group into one
assistant view message; toolResults attach backward by toolCallId;
markers project to data parts; plan-blocks splice after the last
successful plan_init). Every existing consumer reads through it.
- src/core/input-events.ts — the ChatInput union (text/answer/verdict/
continue), parseChatInput validation, and inputAppends (answer targets
the dangling question call or 400s; verdict = optional note user
message + native verdict marker).
Server:
- chat-handler.ts — the turn root takes {chatId, input}; write-ahead
persists input appends + claimed steers before the turn; claimSteers
coalesces the whole queue with the handler's steerDelivered filter as
the dedupe seam; teacher-vs-prober branch on hasProbeDone.
- turn-service.ts — persistTurn stamps ids, drops clean question
placeholder toolResults (the record ends at the unanswered call),
emits plan-block markers idempotently (plan-blocks.ts rewrite), and
persists abort partials.
- ui-stream.ts — PiTurnSpec takes the native base; the wire dialect is
unchanged. jobs.ts steers are native markers (steer_<jobId> dedup ids);
waitForIdle reads danglingQuestionOf. teacher-agent.ts wires
convertToLlm: toLlmMessages. record-adapter.ts DELETED wholesale.
- GET /api/chats/[id] serves messages: projectNative(record.messages).
Client:
- chat-transport.ts — the 409 retry is IDENTITY (re-POST the same event
body after the turn settles — the event was never persisted
pre-acceptance; the merge logic is gone). The transport consumes the
stashed input event via prepareSendMessagesRequest and throws loudly on
a missing stash.
- chat.tsx — every send call site stashes exactly one ChatInput event
(text, answer, verdict, continue) before invoking the SDK send.
Tests: full native migration (chat-flow rewritten to input events and
native record pins; jobs/extraction/demos/graph/usage/plan-blocks/
probe-done/reattach-transport converted; record-adapter.test.ts deleted;
chat-transport tests pin the identity retry). 982/982, typecheck, lint,
build all green.
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7cfd8b5bc7 |
Background turn runner: every turn is a server-side process, clients are views
Owner ruling 2026-09-25. runPiTurn executes a turn decoupled from any HTTP
response: an unbounded memory-only event log (finite by construction; the
30-min liveness TTL bounds the pathological case) plus a subscriber set.
The POST /api/chat stream and the new GET /api/chats/[id]/stream are both
subscribers — identical SSE dialect; late subscribers get FULL replay
(starting at the start chunk) then live until finish + [DONE]. A view
cancelling (reload, navigate) now detaches ONLY — never aborts the turn.
The remote kill is the abort channel: POST /api/activity/abort gains
kind: "turn" (id = chatId; not_running 409 like jobs); handle.abort sets
sawAbort + agent.abort(), every subscriber closes cleanly, the partial
persists through the usual settle (onFinish runs once, then endTurn,
then unregisterTurn LAST so a view that finds nothing finds the record
current). No running turn on reattach: the cheap terminal — one
{"type":"turn-settled"} event + [DONE] (settledTurnResponse).
The live smoke caught what the unit suite had masked: the agent_end
close() had been left behind in the restructure — ReferenceError every
turn, steered into the error path; fixed and pinned (clean turns must
never emit an error chunk; finishReason stop present).
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3327309e8b |
The all-sessions coverage GET dies: the per-session block is the coverage surface
Extraction-UX close-out interlude (master dispatch 2026-09-24, off UI's ff1ec7a confirmation): nothing client-side consumes GET /api/graph/coverage — the sidebar block and the chat-bar ring both read GET /api/chats/[id]'s coverage block. The dead route (app/api/graph/coverage/route.ts) is deleted; the manual-extract front door (POST /api/graph/coverage/extract) stays by design. No server helper was orphaned — the route was composition-only over shared seams (chatStore, extractionStatuses, stores, coverageOf). The sessionCoverage doc + the chats/[id] route comment now point at the per-session block as THE coverage surface. Pin (tests/coverage.test.ts): the route file's absence (prompt-overrides' structural-pin precedent) + the Extract POST's survival — a merge cannot resurrect the dead surface silently. |
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2e9fd01c0c |
Extraction-UX data layer: the chunk budget becomes a graph setting; the chat view gets a per-session coverage read
Owner-locked extraction-UX redesign (dispatch 2026-09-24), part 1 (data
layer; the UI chunk follows).
THRESHOLD -> SETTING
- config.ts's EXTRACTION.chunkTokens dies; the default moves into
FACTORY_SETTINGS.graph.extractionChunkTokens (4096, the old constant's
value). GraphSettings gains the optional field, Required at resolution
via the standard ?? FACTORY pattern — pre-redesign records resolve the
default cleanly.
- FLOOR 500 (the implementer's call, documented on the field): every run
pays the graph-carrying prompt overhead out of the write channel's
money — a smaller budget fires penny-batches that cost more per
extracted token than the content is worth. The sanitizer CLAMPS up
(bd68486 clamp-never-reject discipline: fractions floor, junk drops);
the settings PUT REJECTS below-floor with the rationale in the message.
No ceiling: a large budget just delays extraction — the user's stated
cost/thoroughness tradeoff, not a misconfiguration to police.
- The trigger (turn-service.triggerExtraction) takes the budget as a
parameter — chat-handler passes effective.graph.extractionChunkTokens,
the fresh per-turn read, same as every other gate.
- The pipeline's BATCH side threads through the same number:
ExtractionPipelineDeps gains an OPTIONAL getChunkTokens getter with the
factory default (Teacher's 24 test fixtures stay untouched; the two
call-site lines inside extraction.ts are the only cross-band edits,
flagged). chat-handler + backfill/import-notes wire the live
effectiveSettings — trigger and batches share one budget, always.
PER-SESSION COVERAGE READ
- sessionCoverage(chatId) (server/chats.ts): the chat view's ring-meter
block — totalMessages/coveredCount/uncoveredCount/coveredTokens/
uncoveredTokens (the same coverageOf derivation /api/graph/coverage
serves, scoped to one chat), running (chat-kind extraction registered
for this id), and lastFoldedAt (the chat's newest coverage row's fold
— a cheap single pass; null before any fold). GET /api/chats/[id]
carries it as coverage: {...}; unknown chat -> null (the route 404s
first).
- /api/graph/coverage (the all-sessions list) compiles untouched — the
per-session read is a scoping of it, not a supersession; the UI's
sidebar/ring chunk decides which surface it consumes.
Tests: factory/sanitizer pins (clamp-up, fraction-floor, junk-drop),
resolution pins (absent -> 4096, stored 2000 wins), settings-body pins
(valid/absent/fraction/below-floor 400/junk 400), sessionCoverage pins
(derived split, newest-fold scoping, cross-session isolation, running via
the registry, null on unknown chat). 893/893.
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a6338511d3 |
feat(graph): two-mode session deletion — the first destructive ledger operation
DELETE /api/chats/[id]?mode=preserve-graph|delete-nodes (mode required): - preserve-graph: only extraction bookkeeping dies (coverage rows, legacy checkpoints) — graph ledgers byte-untouched - delete-nodes: the chat's ledger traces die. Node survival = surviving provenance point / mapping line (notes imports carry empty provenance) / surviving event. The creator's aliases + provenance are stripped from a surviving node's create line (owner ruling 2026-09-23: name/statement/createdAt are the shared identity); orphan nodes, their edges, events, mappings, positions, embedding vectors and cluster members die; cluster labels stay (immutable) Gates: 404 unknown, 409 turn_in_flight / jobs_running (with jobIds), 503 extraction_winding_down after a 10s abort-and-poll; the purge is one sync block (ledgers → jobs → chat record last). rewriteLedgers is atomic (tmp + rename). graphRevision (max mtime over graph data files) rides the activity feed + the response as the change stamp. Anti-resurrection: the chat pipeline re-checks chat liveness at each merge — a run that slips past the wind-down aborts with nothing merged or checkpointed; its partial spend dies with the chat. |
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9387418864 |
feat(models): clamp-on-write for pinned thinking levels + DEFAULT_THINKING_ORDER in the core barrel
Fix 1 — clamp, never reject (owner ruling, interlude 2026-09-22): a model swap with a pinned thinking level must JUST WORK. The owner hit the write-side 400 live (Claude Fable 5.1/xhigh → GLM 5.3 flash: "z-ai/glm-5.3-flash does not support thinking level xhigh"). The supported-level verdicts in validateChatSettings and validateModelsSettings are DEAD — the WRITE clamps the pin to the new model's nearest supported level (pi's clampThinkingLevel, the same translation piEngineForSpec applies at runtime) and stores the clamped result; the server is the truth — the record shows the clamped level after write. New pure helpers in model-catalog.ts, applied by ALL THREE write routes (section, defaults, per-chat — one verdict seam, so every surface that used the old 400 gets the clamp uniformly): - clampModelsLevels: every slot's level clamps against the SLOT'S OWN model (the parser already requires a model on each slot write). - clampChatLevel: the body's own model, else the record's resolved strong slot (the chain's fallback); no model anywhere → rides unchecked (runtime clamps at engine build; the turn gate refuses the model-less chat anyway). Fix 2 — DEFAULT_THINKING_ORDER moves from config.ts to core/settings (core barrel, AUTH_KEYS precedent — one source of truth, no drift). The UI imports it to auto-populate a thinking level on FRESH model picks; the ordering has no other client role. Legacy unset records keep the runtime defaultThinkingLevel fallback at engine build untouched. Import sites updated: agent/models.ts, tests. Verified live on 3004: the owner's exact case stores max (not 400); a bare chat-level write clamps to low against the strong slot's glm; unknown provider/model still 400s with the provider list. Tests: the level-verdict suites became clamp suites (the owner's case pinned verbatim: xhigh→max, minimal→low, off→low, supported pass-through, level-less slots ride); the machine-aware expectBareLevelVerdict chain is retired — clampChatLevel takes the strong slot as an explicit param, so the tests are pure again. Gates: typecheck, lint, 839/839, build. |
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bd3086194f |
feat: no baked-in default model — the new-session controls ARE the default settings page
Owner reframe (2026-09-18): the model + thinking + context controls on
the home graph view and /chat/new are not a draft overlay on a baked-in
default — they ARE the settings page for the default model, and the
user's last choice IS the default. BYOK first boot has no keys and
possibly no OpenRouter, so there is NO default to show: the controls
render 'no model' ('—') until the first pick.
The flash was the deeper symptom: the surfaces rendered from client
state that started empty and fetched truth afterward, so every visit
flashed the config pin (GLM/low — a dev artifact) for a few frames.
Fix at the root: both pages are now force-dynamic server components
that read the record (readDefaultSettings → initialSettings) and hand
it to the client — the first frame shows truth. Dynamic routes aren't
cached client-side (staleTimes.dynamic = 0), so every navigation
re-reads the record; the useDefaultSettings hook keeps only save-side
state (optimistic set + PUT). The GET-on-mount and its touch-guard are
gone.
ModelControl gains noDefaultModel (the default surfaces only): unset
settings render no model/level, never the catalog pin; the thinking
menu no-ops until a model exists. Chat surfaces keep the catalog
fallback — the engine runs the config pin when a session record has no
override, so the control keeps showing what will actually run.
Renamed draft→default throughout: data/default-settings.json,
GET/PUT /api/settings/defaults, useDefaultSettings. New sessions
still inherit the default on creation exactly as before.
Live-verified: first-boot 'no model' with zero flash, picker +
Shift+Tab cycle, values held across session→/chat/new→home roundtrips
and a reload (10×100ms samples, never the old default), zero console
errors.
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a94a108e74 |
feat: draft settings persistence — shared model/thinking/context record for the new-session surfaces
Both new-session pages (the home graph view's topic dock and /chat/new)
held their model + thinking + knowledge-context choices in plain
useState(undefined) — every navigation reset them to config defaults.
Now both surfaces read/write ONE server-side record
(data/draft-settings.json via GET/PUT /api/settings/draft, the
render-settings pattern): whatever the learner last left the controls on
is what every later visit shows. useDraftSettings loads on mount with a
touch-guard (a slow GET never clobbers a fast choice), saves
optimistically. Session creation still carries the choice into the new
chat exactly as before; per-session settings are untouched.
The PUT validation is the exact per-chat contract — parseSettingsBody
extracted verbatim from app/api/chats/[id]/settings and shared by both
routes (unknown model/level → 400 with the supported list, never a
silent clamp). 400s on garbage, {} = the clear-overrides write.
Live-verified: Cmd+K+Enter model pick, Shift+Tab thinking cycle, context
slider — all held across home → session → home → /chat/new, and carried
into a created session's record.
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769a3da186 |
feat: session rename + graph chrome polish (popovers dismiss, no-shift no-match, coverage reseat)
Rename (owner ask): clicking the header title opens edit mode with the whole title selected — typing replaces, arrows move inside. Enter or a click away commits (PUT /api/chats/:id); Escape and an empty commit discard. renameChat joins the ChatStore port; like saveSettings it is NOT conversation activity — updatedAt stays put so sidebar order never churns on a rename. The sidebar patch is instant: the header dispatches lh:chat-renamed and SessionsSidebar folds it into its snapshot (the 2.5s poll is only a backstop). Sidebar right-click rename is DELIBERATELY deferred: it needs a real context-menu system, which gets its own pass later (owner decision, 2026-09-17). Graph chrome: - The extraction-coverage button moves between search and import; the gear keeps the far-right corner. Coverage still renders on an EMPTY graph (that is exactly when it matters). - The no-match search note no longer shifts its siblings: the chrome row is items-start (every button is 44px tall, so top alignment pins the row while the search container grows downward). - Popovers dismiss properly: pointerdown anywhere outside the control's root (button + panel) closes it, and so does Escape. Two panels can never be open at once — the sibling chrome buttons are outside the open root, so pointerdown closes the first before the click opens the second. New shared hook components/popover-dismiss.ts, wired into both the settings gear and the coverage control. Gates: typecheck, eslint, 498/498 (+2 rename store tests), build. Live-verified: select-all/focus/Enter/Escape/empty/blur round-trip, updatedAt untouched, sidebar instant patch; chrome order + frozen positions under a no-match query; popover close via canvas, search input, Esc, mutual exclusion, toggle intact. |
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326222f53c |
Minimal-color round 1 (owner): phase color retired — the braille spinner is the one working indicator
Nothing exists purely for decoration: phase color-coding is retired app-wide (phases only advance — every session ends Teaching — so phase-as-signal was decoration with a one-time function), and what state genuinely deserved — 'a turn is in flight' — is now carried by MOTION alone, in the terminal's own glyph language. - BrailleSpinner (components/braille-spinner.tsx): the canonical cli-spinner sequence (⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏) as exact dot bitmaps in a 2×4 braille cell, 80ms/frame (800ms cycle). Pure CSS: one shared keyframes, frames staggered via animation-delay; no JS timer, no re-render per frame — cheaper than the old breathing dot. Static contexts (SSR, prefers-reduced-motion) show frame 0 — a legible glyph, not a blank. - Sidebar rows: spinner ONLY while a teach turn is in flight; idle and question-pending render NOTHING (a resting state has no scan value — the meta line's 'Waiting for your answer' text carries it). The three-state phase dot (pulse/solid/hollow) and PHASE_FILL/RING maps are gone. - Top bar PhaseChip: label-only pill; the old dot slot becomes the spinner's home while a turn is in flight (busy prop wired from ChatView's busy = localStream || turnInFlight). Transcript PhaseDividers drop phase colors for monochrome rules + labels. - API narrowing (app/api/chats/route.ts + ChatListItem contract): busy = isTurnRunning ONLY — background jobs no longer count (the sidebar's Background agents section is their channel; a per-row spinner would double-signal them). - globals.css: --phase-* tokens + lh-dot-breathe removed (dead after the sweep — no remaining users). Live-verified: idle/pending rows render no indicator, /chat/new chip is label-only, 10 CSSAnimations at 800ms with correct 80ms stagger, static frame 0 under reduced motion. Gates: typecheck, lint, 470/470, build. Lane crossings to flag at merge: app/api/chats/route.ts + the ChatListItem contract comment (src/core) — the busy-semantics narrowing; components/chat.tsx one-line busy prop. |
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1d45d77303 |
feat: graph context injection — the session's prior knowledge, steered in at session start (vision-context-injection.md)
One shot per chat, fired at the first turn's onFinish: the session's topic (its only typed message) is embedded as an EmbeddingGemma retrieval query; the semantically closest graph propositions are selected under the session's token budget (pure budget, no similarity threshold — the decided doctrine) and delivered as a marker-only steer through the wake pipeline, queuing behind pending questions like every sub-agent result. - contracts: ChatSettings.graphContextTokens (default 1024, max 4096, step 128, 0 = off); GraphContextData + graphContextText; the graph-context JobKind + buildGraphContextSteer (id steer_ctx_<chatId>) - core/graph-context.ts: brute-force cosine top-K, greedy chars/4 fill under budget, most-recent UnderstandingLevel fold, count cap 64, parse-don't-cast at the marker seam - server: embedQuery (role-asymmetric query format, same warm singleton — vector-space parity by construction); the runner (startGraphContext- Injection one-shot gates; runGraphContextJob validates ledger parity); wake branches (chatIdOf/jobIdOf, finalizeJob done, recoverStaleJobs re-deliver or contextRespawn); abortJob kills context jobs SILENTLY (nothing was promised in the lesson); turn-service trigger seam - adapter: data-graph-context flattens to the canonical block (malformed parts have no model face) - UI: the budget slider (home dock + /chat/new draft, the session-data strip); the quiet SystemLine "~537 · 10 propositions"; dock kind "Knowledge context"; model-picker PUT now spreads settings (a model pick can no longer clear the sibling override) Live-smoked end to end on the real embedder + real GLM: seeded ledger (10 propositions), session on "modal logic: possible worlds and the necessity box" — job in the dock, queued behind the prober's question, delivered on the answer, SystemLine in the transcript, wake turn reads the block and continues the probe. Gates: tsc, lint, 459/459, build. |
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de0c286311 |
feat: model + thinking control — the stats bar's picker, on pi-ai's catalog
The model-control wave (user-decided design, 2026-09-12): ONE controller
for the conversation agents (prober/teacher are functionally one agent);
background sub-agents stay config-pinned. pi-ai owns the registry — the
shipped 366-model OpenRouter catalog (cost, context, modality,
thinkingLevelMap), getSupportedThinkingLevels/clampThinkingLevel for the
per-model thinking truth, and streamSimple's automatic clamp. No second
registry to drift out of sync.
Seams:
- config.ts: ReasoningEffort retired for pi's ThinkingLevel
(off|minimal|low|medium|high|xhigh|max). GLM roles go honest at "low" —
pi's catalog says GLM-5.3-flash accepts exactly low|high|max, and the old
"minimal" was silently clamped to low by streamSimple since the swap;
nothing changes behaviorally. visualMaker → qwen/qwen3.8-flash (fixes
the dead qwen/qwen3.8-max slug — the catalog only ships -0902; also the
user's cost pick, 0.15/0.47 per-1M).
- src/agent/models.ts: piEngineFor(role, settings?) — provider+id resolved
from the catalog, thinking level from settings ?? config, CLAMPED to the
model's supported list (a settings change between models can never send
an invalid level). PiEngine gains `level` (observability/tests).
- ChatRecord.settings {model?: {provider, id}, thinkingLevel?} — written
by PUT /api/chats/[id]/settings (replace-whole, no updatedAt churn),
read by chat-handler at turn composition: agents are stateless per turn,
so the change is next-turn-effective by construction. The turns log
still records the ACTUAL billed model (the honest witness).
- GET /api/models: the configured-provider catalog as client-safe DTOs
(core/contracts/models.ts) + config defaults; a second provider joins
the picker by registering it in piModels() — nothing else changes.
- PUT settings validation gate (src/server/model-catalog.ts): unknown
provider/model or unsupported level → 400 carrying the supported list,
never a silent clamp.
- scripts/sync-pricing.ts: regenerated PRICES/CONTEXT_LIMITS from pi-ai's
shipped openrouter.json (offline; same source as the engine + picker).
All 366 models priced; glm's stale 0.15/0.5 → pi's 0.075/0.25, limit
1310720 → 1048576 — cost is inferred at read time, so history re-prices.
- UI (components/model-picker.tsx): stats-bar right side becomes model +
thinking buttons; menus open ABOVE; fuzzy search over "provider id
name" (core/fuzzy.ts — pi's /model pattern); model rows show name/id/
price/context; the thinking menu lists exactly the chosen model's
supported levels (GLM: low|high|max — no dead options, no "off").
Model switch drops an incompatible pinned level (falls back to config,
which clamps honestly) rather than carrying a 400.
Tests (350/350, +15): catalog projection + defaults, the settings gate,
pi thinking truth pinned against upgrades (glm low|high|max; minimal→low;
off→low — GLM cannot disable thinking), the engine factory's
override/fallback/clamp/throw matrix, fuzzy ranking, store round-trip,
and the re-priced folds (usage, stats bar, activity dock).
Live smoke (disposable driver, deleted): catalog route 366 + defaults;
glm+minimal → 400 + supported; turn 1 billed qwen/qwen3.8-flash under
the override; mid-session switch flipped turn 2 to glm; clear-overrides
restored the config pin. ALL CHECKS PASS on real OpenRouter.
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1c3d288d08 |
Three-phase session status: derived summaries for the picker
- core/phases.ts: Phase3 (probe/plan/teach) + pure derivations — phaseOfTree (point-in-time, from the stored plan tree: no nodes → probe, no occupied node → plan, occupied → teach) and phaseAt3 (monotonic transcript fold for the dividers: failed plan_init never marks a seam; phase only advances). - contracts.ts: ChatSummary gains record-derived phase + pendingQuestion; ChatListItem adds liveness-merged busy. - store/chats.ts listChats computes the record-derived fields (tree + pending question scan). - api/chats route merges busy = turn running || running background job. Lane crossing granted by master: contracts/store/api (schema arbitration). Data-only inference: pre-plan planning reads as probe until the plan lands. |
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a7ca33548b |
Sessions keep running across navigation: turn liveness + write-ahead persist
The bug: answering a quiz and navigating away mid-turn, then returning, re-prompted the same question. Root causes: (1) the answer was durable only at onFinish — every mid-turn view read the stale pre-answer record; (2) the server had no notion of a turn in flight; (3) remount treated the stale record as current, with no re-attach path. Worse, the stale dock let the quiz be answered again, racing two turns into a last-writer-wins saveMessages clobber. Fix (four pieces): - Write-ahead persist in chat-handler: the request body IS the client's canonical state — saved to disk BEFORE the stream starts. The answer is durable the instant the request arrives; crashes recover via the existing mount continuation. - Turn liveness registry (src/server/turn-liveness.ts): in-memory chatId → in-flight map with a TTL leak guard; beginTurn rejects concurrent turns (409) so one turn ever owns a chat. endTurn runs in onFinish AFTER persistTurn, so pollers that see not-in-flight always read a finished record; a turn-start failure clears the registry (no lockout). - GET /api/chats/[id] reports turnInFlight; the chat page passes initiallyInFlight to the client. - Client re-attach (components/chat.tsx): while in flight, busy shimmer + composer gated + mount continuation suppressed; poll /api/chats/[id] until the turn finishes, then syncFromServer adopts the completed transcript. Stop stays local-stream only (a server turn has no client request to abort). Verified by scripted-model tests: concurrent turn 409 + registry lifecycle, write-ahead durability mid-turn, failed-turn lockout guard. |
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e92140f993 |
Shell/core import law: public API barrels + ESLint enforcement (stage 2)
The shell now imports through exactly two barrels, enforced by
import/no-restricted-paths (npm run lint):
components/** -> "@/src/core" (pure core API, browser-safe)
app/** -> "@/src/core" + "@/src/server" (server entries)
Zone violations are lint errors with architecture-pointer messages; the
pure-core modules (contracts, question-core, plan-tree, phases, pending,
math-delims, ui-message) may never import agent/server/store.
Supporting moves (direction: IO layers -> core):
- core/index.ts: the core public API barrel
- core/ui-message.ts: moved from src/agent (it was shell-facing all along)
- quiz/ask input zod schemas moved agent/tools -> core/question-core
(the question contract, alongside the grading logic)
- ChatRecord/ChatSummary moved store/chats -> core/contracts (single schema)
- GraphSnapshot/NodeStateClass moved core/graph -> core/contracts (the
/api/graph payload IS a contract; the pure renderer needs only these)
- src/server/{chats,graph,jobs}.ts + index.ts: thin server entries for the
transport layer; GET /api/graph's fold side-effect now lives behind
graphView() instead of inline in the route
Gates: tsc clean, 190/190 tests, eslint clean (law verified to fire on
store/agent/subpath violations), production build clean.
(Repo repair en route: a git object (app/chat/[id] tree) was missing from
the object store — reconstructed byte-exactly via mktree from its blob;
the broken node_modules that stalled the build was cleanly reinstalled.)
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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. |