Live test finding: answer A then dismiss B woke the agent — the continuation
fold treated a mixed [answered, dismissed] trailing batch as 'reaction owed'
(all-dismissed rule only). Dismiss A then answer B and dismiss-both were
already correct.
The law now: the trailing batch's LAST resolution decides. Ending on a
dismissal = the user signaled stop — no wake, the answers' reactions ride the
next plain message. Ending on a real answer = the reaction is owed. One law
with the pump's pause (endsInDismissal reads the same last result), so
continuation, delivery-holding, and the pause can never disagree. The wrong
pin ('a real answer in the batch still demands the reaction') flipped.
- {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)
- requiresReveal gates on pending.tool === 'quiz' (owner: only graded quizzes
arrive collapsed; ask/explain always open)
- ESC-abort chain opens AbortTurnDialog everywhere (owner ruling); from a
pending question abort IS dismissal — dismissedAnswer rides the answer
path, the teacher acknowledges the skip in its next turn; popup-Esc is
claimed via the state gate (two window listeners fire per Esc)
- 25-confidence.md: stripped the slider/JSON/calibration mechanics — pure
reading doctrine remains
- toolQuestionKind named once in core (dock parity), dock switched to it
Owner design round 2026-10-01: every multiple-choice quiz answer now
carries the learner's stated probability that his selected answer is
correct — calibration data for the prober and teacher, the flow itself
unchanged.
Definition (owner ruling, after weighing chance-normalization): RAW
probability. Sub-chance reports are diagnostic gold, not dead space —
'picked an option, believes it wrong' is a real state. The agents get
the sophistication: new shared/25-confidence.md composes for both
agents (chance level, sub-chance = distrusts the pick, correct+low =
fragile, wrong+high = committed misconception, IDK = genuine gap).
- question-core: AnswerRequest/QuestionAnswerData.confidence (quiz
only, optional — old records valid), buildAnswer clamps and drops it
on dontKnow, formatAnswerMessage states the line, CONFIDENCE_STOPS +
DEFAULT_CONFIDENCE_INDEX exported.
- question-dock: snapped slider below 'I don't know', above 'Your
thinking' — native range over the stop INDEX so ←/→ step the uneven
grid cleanly, Tab chain rows → slider → thinking, Enter submits from
the slider too. Rests at 50 and always sends (owner: 50 must mean a
real coin flip, never 'untouched'). 'I don't know' GRAYS it out —
layout holds, no value sent.
Deliberately untouched: explain free-recall card (quiz-only scope),
answered-card rendering of confidence, ask flow.
Owner live-test verdict on the spine (2026-09-30): no perceptible gain —
the real problems (restatement nodes, shallow re-derivations, same
conclusion from many angles) are mint-time issues a post-hoc chain
minter cannot fix. This arc moves assembly INTO the extractor and adds
the deterministic dedupe the owner specified:
- Digest-aware extraction: each stretch's extractor prompt carries THE
GRAPH SO FAR (its own source's merged propositions + chains, ids
verbatim); build on existing ids instead of restating, lean on
established conclusions as premises. Mixed-namespace chain endpoints
(fresh p-ids OR existing n_-ids) validated at the submit seam.
- Serialized per source: a source's batches/chunks run strictly in
order (each extract reads every earlier merge); cross-source runs
stay parallel; source-wide abort stops the loop. The spine stage,
role, phase, usage stage, cost row, and setup roster are gone.
- Core-ideas prompt: goal reframed as uncovering core ideas and showing
how everything derives from the foundations; direction upward, prefer
lean derivations, never re-derive what the graph already holds.
- Chain simplification (merger maintenance): simplifyChains drops
provably redundant chains at every merge — prefer-fewest-premises +
ancestry-cover ([A,B]⟹X with [X,C]⟹Y covers [A,B,C]⟹Y, transitive);
same-key provenance lines drop together; rewriteLedgers under the
audit lock; droppedChains counted separately in stats.
Chunk budget stays 8192 (owner: keep for now, maybe lower later).
Per-batch pipeline is now extract → spine → audit → merge (owner order,
2026-09-30), the spine inside the serialized audit section so it reads
the graph exactly as the following audit will. Measured motive: 0 of 133
chains in the live corpus crossed a stretch boundary — no stage minted
cross-stretch chains.
- src/agent/subagents/spine.ts: SESSION/NOTES spine preambles + shared
SPINE_CORE (span doctrine; extraction doctrines carried over), the
submit_spine TypeBox schema, validateSpine (mechanical span law: every
chain touches >=1 fresh endpoint AND >=1 existing digest endpoint;
unknown ids, self-reference, and id collisions are loud), the digest
prompt builder, and the runner (strong tier, retry-only).
- extraction.ts: 'assembling' phase, spine stage in the per-need gate,
usage/billing stage, assemble() inside withAuditLock for both front
doors; first stretch of a source skips the call (empty digest, no
spend); the audit sees COMBINED propositions (chunk + connectives),
never chains; merger receives the combined findings.
- core/graph.ts mergeFindings: chain endpoints resolve through the
job-local map OR pass through verbatim as existing n_ ids (the spine's
mixed namespace).
- EXTRACTION_CORE: steps-of-reasoning selection bar (examples, notation
glosses, and restatements that no argument needs are not steps).
- Factory chunk budget 4096 -> 8192 (fewer seams, more local context).
- healStringifiedArrays moved to the shared submit seam (submit-agent.ts).
- Cost panel: Assembly row; usage records carry a spine stage (optional
on legacy records).
- Tests +5: prompt pins, span-law matrix, digest rendering, seeded
end-to-end flow (spanning chain + connective, verbatim n_ endpoint,
spine billed as its own stage), non-spanning refused + retried.
Owner ruling (2026-09-30, live-testing loop — supersedes 02a58db's
exemption): implication nodes ARE depth-anchored after all. Their anchor
is the average of the HIGHEST premise row and the conclusion's row —
depth(imp) = (max(premise depths) + depth(conclusion)) / 2 — so the
junction always sits strictly above every premise and strictly below
the conclusion (a conclusion is >= highest premise + 1 in the logical
graph). Uniform across modes: a half-row in vertical, a ring midway in
radial (owner confirmed both).
Implementation:
- layout.ts: new ImpLink type; SimOptions/incrementalLayout gain
impLinks (the derived chain linkage). The rank map is now computed
once alongside the orphan mask: proposition ranks via Tarjan over the
logical edges, then each supplied link adds its midpoint entry. An
imp node WITH an anchor is structured (leaves the orphan mask —
gravity projections treat it like any ranked node); WITHOUT supplied
links, arg_ ids keep the legacy 02a58db exemption (honest fallback
for callers that predate the field). The depth force reuses the
precomputed map — one pass, shared.
- deriveView (core/graph.ts) emits impLinks (one per multi-premise
live chain — single-premise chains mint no imp node); GraphSnapshot
carries them; graph-view maps them into CanvasData; settleGraphLayout
and replay-layout forward them (replay activates a junction's link
exactly when its chain is delivered).
Tests (+3, 1 rewritten): the 02a58db exemption pin became the MIDPOINT
pin (premises row 0, conclusion row -500, junction pinned to -250);
mixed-depth pin (premises at 0 and 1, conclusion 2, junction at the 1.5
half-row — highest premise, not average-of-premises); legacy fallback
pin (no impLinks = never depth-anchored); deriveView impLinks emission
pin (multi-premise only). The horizontal-pole and ORPHAN RULE pins from
5554c3a survive unchanged — proposition orphans are untouched.
Owner ruling (2026-09-30, straight from the live-testing loop): when the
depth anchor is vertical, the central pole (center-of-mass gravity)
should create forces on the x axis ONLY.
Half of this was already true: structured propositions have had x-only
gravity in vertical mode since the 2026-09-13 depth projections (the
depth force owns y). The change extends it to the one branch that still
pulled on both axes — the orphan mask (unstructured propositions, and
since 02a58db the imp geometry points): in vertical mode everyone gets
the x-only pull; the full regular pull survives only in radial mode
(where the rings own the radius) and in mode-off (plain forceX/forceY).
Why this is coherent: y in vertical mode belongs to the depth rows and
to nothing else. A structured node sits on its row; an unstructured
node has no row to sit on — and now no pole to sag toward either. Its
y is free (charge/springs only), so orphans keep their seeded or
warm-started height instead of piling onto the center line, and imp
bundles settle purely by their springs between premise and conclusion
levels.
Amended the ORPHAN RULE comments to state the new law, plus the imp-
exemption comment (gravity is horizontal-only in vertical mode "like
everyone"). Radial and mode-off paths untouched.
Tests: the ORPHAN RULE pin rewritten to the amended law (orphan's y
untouched at its seed, x still converges on the pole — the old pin
asserted y converging on gravity's center); new explicit pin in the
logical-graph describe (lonely node: |x| < 50, |y − seed| < 5); the
02a58db exemption fixture's comment updated to match (springs alone
place arg_x between levels).
Owner-approved brief (orchestrator, physics arc): two laws.
1. IMP-NODE CLUSTER ASSIGNMENT. Imp nodes were unclustered (the partition
runs over stored propositions only) — no centroid pull, outside the
painted hulls, bundles sitting on the periphery pointing outward.
Now: a derived imp node's cluster is a function of its derivation —
MAJORITY among its PREMISES' birth sessions (owner: premises, NOT the
conclusion), ties to the chain's OWN birth (its provenance's first
point — the asserting session; deterministic, coincides with the
unanimous common case). Imp nodes are always re-derived, never
birthed, so the assignment must be exactly this.
Seam chosen: core/session-clusters.ts exports impClusterKey + a
shared attachImpToCommunities that mutates a communities list's
members IN PLACE. graphSnapshot attaches AFTER the hull filter (a
2-proposition community + its bundle never resurrects a hull — the
filter counts propositions); settleGraphLayout attaches to the
unfiltered partition (settle pulls every community; hulls are a
canvas-only concern). Both cluster-membership consumers — the sim's
centroid pull and buildRegions' rasterization — read it through the
members lists that went through the one helper, so the resting
ledger and the live sim agree on where bundles belong.
2. DEPTHS OVER THE LOGICAL GRAPH. inferenceDepths ran Tarjan over the
DRAWN edges (premise→imp→conclusion), inflating every multi-premise
conclusion one hop (depth(imp)+1 instead of depth(premises)+1) and
ranking the geometry point itself. Now:
- deriveView additionally emits logicalEdges — every chain contracted
to direct premise→conclusion arrows over PROPOSITION ids only
(per-premise, deduped — a conclusion's rank is max over premises,
which a single arbitrary premise edge could not express).
- GraphSnapshot carries logicalEdges; createGraphSimulation /
incrementalLayout accept a logicalEdges option: the depth
machinery (orphan detection AND the rank pass) reads it, springs
keep the drawn edges. Absent = edges (legacy behavior).
- Imp nodes join the ORPHAN-EXEMPTION mask explicitly — never pinned
to a level, keep the full regular forces (gravity, cluster pull,
springs), settle naturally between premise and conclusion levels;
the rank map is computed over propositions only, so arg_ ids are
absent from it by construction.
Wiring: settle + canvas (CanvasData.logicalEdges → buildSim) +
replay-layout all pass the logical set.
EXTRA FIX (in-slice discovery, one line, graph-server domain):
server/graph.ts graphClusters — the practice picker's /api/graph/
clusters — partitioned snap.NODES (the canvas image, imp nodes riding
it since chains-primary), leaking arg_ ids into nodeIds: pickable ids
that silently vanish inside chainsForSelection while nodeCount lied.
Now partitions snap.propositions — same purity law as the chain
table's 767a559 fix.
Tests (+13): impClusterKey pins (unanimous; cross-session majority; tie
→ chain's own birth, not the conclusion's); attach pins (members gain
the imp id, sorted; single-premise attaches nothing — no node exists;
dangling mints nothing; home absent from the list stays unattached);
snapshot pins (imp id rides cluster members to both consumers; the hull
filter counts propositions); logical-depth pins (multi-premise
conclusion at premises'+1 NOT +2; imp absent from the rank map);
depth-force exemption pin (rows pin crisply, arg_x floats unpinned —
old behavior stamped it onto the conclusion's row); deriveView logical
arrows (per-premise, deduped, proposition ids only).
Owner-approved brief (orchestrator): the canvas stops drawing implication
nodes as first-class nodes and starts drawing them as what they are — the
point where co-premise lines converge.
- deriveView (core/graph.ts): single-premise chains collapse to ONE direct
premise->conclusion arrow — no imp node minted (a chain is always N-in/
1-out; one premise is the degenerate case). Multi-premise chains keep
the imp node + fan. Dangling guard unchanged.
- physics (core/layout.ts createGraphSimulation): per-link rest length —
a link touching an arg_-prefixed endpoint gets HALF the base link
distance, default or user-tuned alike; everything else about imp-node
physics citizenship unchanged.
- canvas (components/graph-canvas.ts): imp nodes are PURE GEOMETRY —
invisible (no disc, no label) and unpickable (excluded from pickAt's
hit-test projection). Edges INTO an imp node: headless, shaft runs to
its CENTER (toRadius 0, no head triangle). Edges OUT: shaft starts at
the center (fromRadius 0), arrowhead lands on the conclusion's disc
edge. Single-premise direct arrows render as today's plain arrows.
- comment repairs (same commit): the two stale double-shaft claims
(CanvasEdge doc + the draw-pass block) rewritten to the truth — plain
single shafts; bundles are headless converging lines + one arrowed
out-edge; no double-shaft glyph exists anywhere.
- tests (+9): deriveView pins (single-premise collapse, multi-premise
fan, shared-conclusion distinctness, dangling drop); imp-link half-
distance settle pins; arrowGeometry zero-radius laws + isImpNodeId
pin; graph.test.ts's snapshot invariant now counts only MULTI-premise
live chains (its fixture's single-premise chains mint zero imp nodes);
layout settle fixture updated for the collapse.
The owner's live test surfaced it: after importing notes, the chains view
listed implication nodes as bogus singleton "chains" — and each carried
the same arg_ id as the real stored chain, tripping React's duplicate-key
error (chain-table.tsx:372).
Root cause: graph-view passed snapshot.nodes — the derived canvas view
(propositions + implication nodes) — into ChainTableOverlay, whose
chainsForSelection turns every unchained node into a singleton chain.
An implication node is never a chain member (members are proposition
ids), so every imp node minted a bogus singleton with a colliding id;
its row was even selectable, leaking arg_ ids into practice input.
Fix (owner-approved shape): GraphSnapshot gains `propositions` — the
stored-truth node list riding beside `chains` for exactly this class of
consumer. The chain table now receives snapshot.propositions; the canvas
keeps snapshot.nodes (imp nodes are meant to be drawn). Practice pipeline
unaffected (it already read getGraph, which is propositions-only).
Test: the snapshot split pinned as an invariant in graph.test.ts — image
= truth + one imp node per fully-live stored chain; truth never carries
an arg_ id.
- architecture.md section 6 rewritten: stored truth = propositions + chains
(chains.jsonl); deriveView as the lossy image (implication nodes +
untyped arrows, rebuilt per read); the bijection framing (independent
arguments for one conclusion stay distinct — the corruption the edge
store invited); new deletion-semantics paragraph (proposition death
cascades to every referencing chain; arg_ death = one argument);
supports retirement stated plainly; auditor's propositions-only scope;
clusters stated as birth-session partition truth (no Louvain claim)
- section 7 practice chain model: stored-chains inclusion law replaces
follows-edge grouping; chainsToGraph bijection claim deleted
- README: graph clauses (stored chains, derived view, chain dedupe),
practice clause, ledger inventory, and two long-stale line-5 claims
(ledger events, semantic top-K) corrected
- contracts/graph.ts GraphSnapshot comment: Louvain claim replaced with
birth-session truth; extraction.ts comments no longer narrate the
dead expandFindings/chainsToEdges seam
Owner rulings 2026-09-30: reasoning chains are the stored truth; the graph
canvas renders a lossy derived image. No migration, no backcompat — old
graph data was wiped.
- contracts: GraphChain (arg_-minted id, premises, conclusion) replaces
typed edges; GraphEdge survives only as the untyped derived arrow;
GraphSnapshot carries stored chains; supports edges retired entirely
- store: chains.jsonl ledger (edges.jsonl purged at load alongside legacy
events.jsonl); readChains/appendChain seam; merge dedupes by
(sorted premises, conclusion), re-assertions append under the same arg_ id
- core: deriveView mints implication nodes (name ⟹, statement via
formatChainLine) plus premise→imp→conclusion arrows; clusters stay
proposition-only (birthSessionPartition); chainsForSelection now groups
STORED chains (chain rides iff every member selected) — independent
arguments for one conclusion never union; chainsToGraph/chainsToEdges die
- extraction: extractor submits chains natively (expandFindings deleted);
auditor receives propositions only; supports fan-out gone
- deletion: full death of a proposition kills every referencing chain;
arg_-prefixed node deletes kill that chain; chainsRemoved stats
- UI: every arrow renders the ⟹ double shaft; supports toggle + thickness
slider and detail-card edge sections deleted (card keeps name +
proposition); chain table + practice pipeline read stored chains
- tests: 1188 green across the new seams
Owner 2026-09-30: the confirm dialog's pre-flight impact read had to
go — what full death takes is obvious, the per-open fetch flickered,
and richer facts would only confuse as deletion semantics evolve
(rewiring is on the table). The screen is now: Delete node? / Delete
N nodes?, the names in the mono block, one permanence line, Cancel /
Delete. No loading state, no gone state (a 404 mid-run lands in the
honest failure line), no sessions join — the joins prop died too.
The dead path is deleted end to end: GET /api/graph/nodes/[id],
graphNodeImpact (server), nodeDeletionImpact (core) and their tests.
WORDING: node/node(s) is THE UI word for graph objects, standardized
across every surface's copy (owner, same ruling): the dialog titles,
the chain table's counts/search/summary/delete aria-labels, the
practice dialog's cluster counts, selection line, and empty-cluster
hint. Internal identifiers (selection.propositions) unchanged.
Rewritten dialog pins (tests/delete-node-dialog.test.tsx): minimal
contract — no facts/loading/fetch copy, singular/plural titles, the
cap, 409 dock phrasing, busy states, no 'proposition' left in the
dialog.
- core formatChainLine: names + arrow one-liner, singleton marker, pure
- graph-view Chains button (chrome row, empty-graph hidden) opens the
overlay: fuzzy search (names/aliases/statements), collapsible chain →
member → statement rows, birth-session + created columns, no
understanding-levels column
- pinned Selected section derives the agents' actual input live
(chainsForSelection over the selection; premise without its
conclusion shows as the singleton it becomes)
- Generate opens the creation dialog in CUSTOM mode: selection summary
+ dated default title, posts {nodeIds, params, note}; cluster mode
untouched on /practice
- live-verified on the owner's dev server: 219 chains, derived preview,
search-never-filters-Selected, dialog handoff (selection pass-through
bug caught + fixed en route), Esc/backdrop dismiss, zero writes
- practice UI files re-normalized to tabs (my earlier prettier runs had
drifted them to the 2-space default; whitespace-only)
17 render/unit pins added; gates: tsc 0, 1174/1174, lint 0, build 0
- dialog: optional 'Anything else?' textarea (typing-only, 2000-char mirror)
- API: body gains note? — trimmed, whitespace-only omitted, hard 400 over 2000
- pipeline: note persisted on the set and threaded to both agent stages
- agents: THE LEARNER'S NOTE prompt block (present only when set) + the
weighed-never-owed stance pinned in both doctrines
- fix en route: doubled THE PARAMETERS heading in both prompts since slice 3
(renderParams owns the heading; the literal blocks removed)
Owner report: created a set, 'Interrupted (server restarted)' showed
on list + set views, generation proceeded and overwrote it. The
sweep's 'generating + no registry row' test had a false-positive
mode: it ran at EVERY pipeline instantiation, and an instance could
evaluate against a registry whose fresh row it couldn't observe.
Three guards, per ruling:
1. HEARTBEAT: ProblemSet.updatedAt? (contract + doc) — bumped on
every store write; createSet stamps it = createdAt; saveSet
re-stamps (validator tolerates absence for legacy rows).
2. ONCE PER PROCESS: the sweep guards on globalThis
.__lhPracticeSweepDone — no instance re-evaluates after the
process's first sweep.
3. GRACE WINDOW: only sets whose heartbeat (updatedAt ?? createdAt)
is older than 120s are stamped. A live run saves at every phase/
problem transition, so it is structurally unreachable; a true
orphan is minutes stale at next boot. One [practice <id>] log
line per stamped set (the extraction/jobs console.error idiom).
Tests: stale orphan stamped; FRESH generating set untouched (grace);
once-guard (second factory instantiation never re-sweeps); live-row
protection re-armed via resetSweep() test seam; store pins for
updatedAt birth-stamp + re-stamp + legacy tolerance. Architecture.md
sweep sentence updated (once-per-process + grace semantics).
1142/1142, tsc 0, lint 0, build 0.
Contracts: LadderRung 0-4, CueDistance 0-2, Presentation theory|
application; PracticeParams carries the three named levels. Doc
comments hold the three definition tables verbatim (rung names +
definitions from the ladder doctrine; cue levels; presentation
levels).
Core: LADDER_RUNGS/CUE_LEVELS/PRESENTATIONS tables in src/core/
practice.ts (definitions verbatim) — ONE source spoken by the agents'
prompts, the dialog's stepped controls, and the exam header; core
barrel re-exports practice.ts (pure domain, browser-safe).
Agents: Part I's ladder intro now 'five rungs, numbered; the request
arrives as a rung' with bullets numbered 0-4 (definitions untouched);
Part III's parameters block replaced with the named-level doctrine
(rung = exact class, no continuum; cue counts lesson examples AND
previous problems' situations; presentation dresses, never changes);
partitioner's RESPECT THE PARAMETERS replaced (low rungs = many small
assignments, high = larger; far cue makes confusables-together MORE
important; presentation does not shape the partition). renderParams
outputs the exact named-level block. Anchor/0..1 language swept dead.
Service + store: strict union validation — floats between levels,
out-of-range, wrong strings, legacy dial shapes all 400 at the API
and fail isProblemSet (legacy sets skipped from lists; no migration —
data/practice is disposable scratch, owner wipes before testing).
UI: dialog = 5-detent ladder slider + 3-detent cue slider (each shows
the level NAME + one-line definition) + Theory|Application segmented
toggle; defaults rung 2 / cue 1 / theory; Create posts the new shape.
Exam header gains the levels line ('Direct exercise · Adjacent
context · Theory').
Tests: renderParams exact-block pin; strict-validation pins (new
tests/practice-service.test.ts — bad unions 400, legacy shape 400);
store pins (legacy floats + 2.5 rung fail); render pins (detents +
names + definitions, defaults, detent-swap, toggle active segment,
levels line); every params fixture moved off floats. 1138/1138, tsc
0, lint 0, build 0.
Docs: architecture.md — discretization paragraph (compact tables,
named-level invocation, defaults, one-table source), UI mentions;
README axes sentence.
Owner escalation on deviation 1: practice availability must not
inherit a visual-rendering threshold. graphClusters() now runs
birthSessionPartition(snap.nodes) directly (same size-desc/id-asc
ordering) instead of reading the snapshot's MIN_CLUSTER_SIZE-filtered
clusters array — MIN_CLUSTER_SIZE stays a hull-drawing rule only.
Label join mirrors the snapshot's (chat title / notes path, null when
the naming record is gone). Contract doc + architecture.md sentence
corrected to match; empty-picker copy reworded ('once a session births
its first proposition' — no 3+ mechanics). Render pins: new empty line
+ a 1- and 2-proposition group listing pin. 1130/1130, tsc 0, lint 0,
build 0.
Owner ruling: 'problem sets always take in nodes — graph objects' —
practice is graph-domain, not chat-domain. No session-created sets.
API: POST /api/practice/sets takes {nodeIds, params, title?} ONLY —
the chatId branch, UnknownChatError, and the any-provenance filter are
deleted; the selector is nodeIds (readNodes filtered to the selection,
unknown ids drop, empty live intersection → 400 empty_selection);
title optional from the UI (the picker's cluster label), dated default
stays. chatStore leaves the pipeline deps entirely (labels resolve
store-side in the clusters service).
GET /api/graph/clusters (new): the birth-session groups the graph view
renders — graphSnapshot's clusters verbatim (same ordering, same
MIN_CLUSTER_SIZE presentation filter), mapped to {key, kind
chat|notes, label (null when the naming record is gone — honest,
never guessed), nodeIds, nodeCount}; corrupt/empty graph → empty
list. GraphClusterGroup contract in core/contracts/graph.ts (client-
safe — the dialog imports it).
practice-dialog: session picker → cluster picker (rows show label +
proposition count, notes clusters marked); Create posts the cluster's
nodeIds + label as title + params. 400 empty-selection copy reworded
for the vanished-nodes edge ('Nothing practicable is left in that
cluster — the graph changed.'); 503 deep link unchanged. Preselected
mode gone — the dialog is the only creation entry for now (the graph-
view cluster entry comes later with free-form selection).
Sidebar: session right-click 'Practice this session's propositions'
removed (item + state + dialog wiring); the /practice nav row stays.
Tests: pipeline — chatId/any-provenance tests die, nodeIds selection
pins added (unknown-id filtering, dated-default title, title hint
rides, empty/vanished → EmptySelectionError); render — cluster picker
pins (label+count rows, notes kind, unlabeled cluster muted, empty
graph line), preselected pins removed; 16 render + 13 pipeline.
Docs: architecture.md §7 API+UI paragraph rewritten (graph-domain
ruling, /api/graph/clusters, cluster picker as the only entry, no
404-unknown-chat); README creation-flow line updated.
1130/1130, tsc 0, lint 0, build 0.
src/agent/subagents/practice.ts: createPracticeAgents(deps) with the
ExtractionModels mirror (per-stage engine overrides + engineFor +
providerKeyMissing + refuseIfStagesUnready, all three roles strong-tier).
Generator doctrine = the owner's problem-engineering framework verbatim
(minus Sources) + Part III wiring section per the green-lit amendments
(FULL SET input with minimal-use doctrine; degradation never in
meta-commentary). Partitioner: true-partition doctrine, validate via
chainCoverage + exactly-once + unknown-ids, error-back retries through
runSubmitAgent's new validate hook (ToolInputError → error tool result).
Generator: echo law (chains set === target). Grader: verdict union +
nonempty feedback (schema-enforced). renderChains/renderPropositions/
renderParams/renderPreviousProblems. BACKGROUND_MODEL_ROLES extended with
the practice trio (settings override symmetry). runSubmitAgent gains the
validate seam (null = accept). 16-test faux-engine suite incl. retry
paths, refusal gates, neverSubmitted.
runSubmitAgent moved verbatim from extraction.ts to src/agent/subagents/
submit-agent.ts (exported; extraction imports it — zero behavior change,
extraction suites green untouched). New optional prepareArguments seam:
extraction wires its healStringifiedArrays heal; default is identity
pass-through. ModelRole += partitioner | problemGenerator | grader;
ROLE_SLOT pins all three to strong (quality-critical trio, plan default).
Note: BACKGROUND_MODEL_ROLES (per-role settings overrides) deliberately
NOT extended — settings-surface decision, flagged for the planning
session.
Costs were rendering '—' for tonight's extraction runs. Root cause: the
pi family bump (df1328e, 0.85.1 -> 0.87.1) added deepseek-v4.1-flash to
the shipped catalogs, but scripts/sync-pricing.ts was never re-run after
it — src/core/prices.ts was still the 2026-09-25 generation. The design
itself is sound and matches the owner's expectation: nothing stores
dollars; records keep tokens + model string; callCost infers at read
time from PRICES[model]. So the re-sync retroactively re-prices every
run the moment the entry lands.
- npx tsx scripts/sync-pricing.ts: 1495 keys (+314/-173 lines);
openrouter:deepseek/deepseek-v4.1-flash = 0.15/0.6/0.003 (matches the
catalog the picker serves)
- glm-5.3-flash price drift (0.075/0.25 -> 0.15/0.5, cacheRead 0.015 ->
0.05): four pinned-cost tests re-derived (usage, cost-summary via
callCost, activity-dock, stats-bar)
- prices.ts header: dropped the false bare-slug-legacy claim (the table
has zero bare keys; sync emits provider-qualified only) and noted the
forgetting-the-sync failure mode
A LINEAR 0–1 multiplier of Edge width (default 0.5, dead-center at step
0.1 — 11 stops like the ladder rows but ratio-valued), grayed out by the
supports-edges toggle (the Dilation dependency pattern). Renderer splits
supports shafts into their own Path2D and strokes a second pass at
edgeWidth × supportsWidth; arrowheads stay full-geometry in the one shared
path (owner pick: shaft only). A true 0-width stroke is undefined on
canvas — the 0 end floors to a 0.5px on-screen hairline; hiding remains
the toggle's job. Sanitizer: real numbers clamp to [0,1], everything else
resets to 0.5; clamps pinned in render-settings.test.
Off hides supports edges from the canvas: the renderer skips them when
building the shaft/head paths (draw-only — the physics sim still feels
them and detail cards still list them; settings never shift the graph).
Server-persisted with the rest (render-settings.json); sanitizer takes
real booleans only, anything else (missing key, legacy file) loads ON —
today's look. Toggle row styled as the Background-colors row; sanitiser
pinned in render-settings.test.
The persisted (chatId, sourceId)→node table was a shared namespace across
independent chunk/batch jobs: each chunk's extractor mints local ids fresh
(p1..pN), so later chunks collided with earlier ones — propositions silently
skipped as 'already resolved' (coverage checkpointed anyway: permanent silent
loss) and edges resolved onto the wrong nodes (the 'everything links to
everything' mush). Owner ruling 2026-09-29: mergeFindings resolves THIS job's
ids in memory, nothing persists between jobs; cross-job identity is the
auditor's linkTo verdicts alone.
- contracts: NodeMapping dies; NotesSource.contentFp — sha256 of the text at
the last run, the re-import guard (unchanged re-import = TRUE no-op, no
model calls, no usage; changed text re-runs; legacy unstamped sources
re-run once)
- merger: job-local resolution map, in-submit duplicate ids skip once,
edges resolve extractor-local ids only
- ports/store: appendMapping/readMappings, LEDGER_FILES.mappings,
rewriteLedgers.mappings gone (stale data/graph/mappings.jsonl just stops
being read)
- session-clusters: birthSessionOf is provenance-only — the legacy
mapping-line fallback for provenance-empty notes nodes dies
- deletion: no mapping rows to strip; stats lose mappingsRemoved
- replay-layout batches nodes by first provenance point
- graph.test pins the new independence semantics (re-merge re-creates;
duplicate ids within one submit resolve once); extraction tests pin
per-chunk merges + the fingerprint guard
Hypothesis under test by the owner: coherent extractions turn to mush
after merging because the auditor minted too many bridging edges of its
own — inference, not identity, and out of the auditor's scope. The graph
now connects across sources solely through identified equivalences;
relations between propositions come from the extractor alone.
- auditSchema drops 'edges' (submit_review = links only); the submit-seam
required-field doctrine reworded per tool
- AUDITOR_INSTRUCTIONS: the BRIDGING EDGES section dies; deliverable is
the identity verdicts only
- AuditVerdicts drops edges; ExtractedEdge endpoints are extractor-local
ids only; mergeFindings stops consuming verdict edges and its resolve()
drops the raw-node-id branch (dead — the extractor never sees graph ids)
- extractor untouched: submit_findings keeps propositions + follows/
supports edges, required as before
- tests: 17 submit fixtures + 9 typed verdict literals slimmed to links
- docs: architecture.md division-of-trust + pipeline diagram updated
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.
Owner ruling 2026-09-28: the auditor has no control over the
extractor's output and never alters it, so re-emitting the full
findings per submit was pure payload cost — the retry collapse the
schema slim attacked, halved again. submit_review is now links
(local proposition id -> existing graph node; EQUIVALENCE BIAS
carried in the linkTo description) + bridging edges ONLY; the
merger joins extractor findings + verdicts.
mergeFindings(chatId, findings, verdicts, ...) — propositions come
from findings verbatim, links join by id, edges emit extractor's
then auditor's through one dedup-preserving emitter. The old echo
form hid an accidental drop channel: an auditor that omitted a
proposition from its echo silently dropped it from the merge.
Verdicts-only removes it structurally — extractor output always
fully merges (tests updated to full-merge expectations).
AuditResult/AuditedProposition -> IdentityLink/AuditVerdicts;
audit() logs links/bridges; batch view renders anchorless like
transcriptView; auditor prompt rewritten to the verdicts-only
deliverable; architecture.md division-of-trust updated.
OpenRouter log diagnosis (owner, 2026-09-28): extraction time was
dominated by tool-validation retries. The failing call had the whole
propositions array emitted as ONE JSON-STRING ('propositions.0: must
be object'), a truncated placeholder artifact inside it, and
word-salad statements late in the array — payload-size collapse.
Field audit: 'evidence' was never persisted anywhere and its
faithfulness-checking consumer died with the fully-trusted ruling;
'messages' fed messageId granularity that NOTHING downstream reads,
and the model sent [] anyway (chat-level provenance in practice).
'aliases' stays (optional now): the auditor's find tool globs them.
Schema: propositions = {id, name, statement, aliases?}; edges =
{from, to, type}. Prompts lose the evidence/messages doctrine and
[id]-anchor guidance, gain a compact faithfulness line;
transcriptView renders anchorless. The auditor echo instruction
drops the evidence/messages mention, so its payload halves too.
Heal: healStringifiedArrays on the submit tool's prepareArguments
(pi-agent-core's sanctioned pre-TypeBox shim) parses a stringified
propositions/edges back into arrays — the LaTeX-restore doctrine:
heal weak-model wire behavior at the seam. Test drives the real
agent-loop seam with a stringified submit.
The graph becomes raw reasoning chains only. Quiz outcomes and
understanding observations are no longer formalized; assessment
moves to the future practice module.
Events ledger removed end-to-end: LedgerEvent/LedgerEventKind/
UnderstandingLevel/ExtractionAttribution/AuditResult.dropped and
snapshot nodeObservations deleted from contracts; quizEvent builder
and the events step of mergeFindings gone; appendEvent/readEvents
dropped from the port and store; LEDGER_FILES loses events.jsonl
with a one-time purge of a stale file next to the nodes ledger;
graph-deletion and the delete dialog lose event purge + quiz-answer
impact counts; GraphSessionProposition becomes a pure birth list.
Whole-session markdown source view: new core/session-markdown.ts is
the shared formatting engine (id-anchored speaker blocks, quiz/
recall/question blocks, tool one-liners) — the extractor's prompt
view and the future user-facing export render from one engine.
Coverage fingerprints deliberately stay on the old line format
(content-hash semantics; re-formatting never re-opens covered
history). The whole session goes to the extractor — no phase cut.
Auditor refocused as the identity linker: never sees the source;
explores the graph via new auditor-specific tools in
agent/tools/graph.ts (find — glob over name/statement/aliases;
list_sessions; list_propositions with full statement text; no
timestamps) instead of an injected full-graph dump; equivalence
bias — paraphrases merge, only genuinely distinct propositions stay
apart; no drop channel, the extractor is fully trusted; may draw
bridging edges (typed follows/supports) between existing nodes and
the batch, resolved by the merger with chat-scoped message-less
provenance. Agentic loop, maxTurns 16.
UI: the node detail card gains an edges section above the sessions
list (follows-from / supported-by / what-follows / what-it-supports,
rendered only when present, click-to-select neighbors); the
understanding-note chips are gone.
Prober list_propositions reworded to what a session covered —
names only, no levels. docs/architecture.md + README updated to
the as-built pipeline. Gates: typecheck, 1059/1059, lint, build.
Two follow-up rulings on the explain tool:
1. No 'I don't know' row — not needed in free recall. If he doesn't
know, he says so in his own words; his text is the only answer
channel. Dock: text mode is rowless again (the composer IS the
surface); doctrine and the shared prompt chunk updated; the format
branch and card revert to quiz-only dontKnow.
2. explanation + correctAnswer collapse into ONE field — the separate
explanation was quiz remnant (MC needs the why outside its options;
a free-text commitment carries its own reasoning). Schema is now
{question, correctAnswer, details?}; the reveal shows the single
committed answer; no explanation snapshots anywhere on the explain
path.
1047/1047 tests, typecheck/lint/build green.
Sycophancy mitigation as a structural commitment: the model writes its
full correctAnswer (plus explanation, in that order) BEFORE the learner
sees the question; the commitment rides the persisted call args, is
revealed on submit, and grades his free text in the model's next reply —
the client never grades free recall.
- tools.explain setting (segmented 'Quizzing — Multiple choice | Free
recall' in Agent settings' Tools group): free arms explain and drops
quiz for BOTH agents (prober variant carries no nodeId, same pattern
as the probe quiz); mechanics keys never pass filterEnabledTools —
quiz stays unwritable (the 2026-09-19 wedge ruling stands)
- doctrine lives pi-natively in the tool descriptions (owner ruling —
no conditional system-prompt chunks): explain carries the commitment
rule; the MC option-building craft moved out of the prompt into the
quiz description; shared/20-question-tools.md slims to the
quiz-agnostic core
- display seams: parseExplainInput (LaTeX-debris restoration included),
dock text-mode with an 'I don't know' row (kbd row 0), AnsweredCard
reveal (The answer / Why, no verdict chips), [Explain answer] format
- phases/plan seams recognize both quizzing tools' nodeId tags; explain
answers deliberately feed no ledger evidence (no client grading to
key on — a future ruling can parse the model's grade)
1049/1049 tests, typecheck/lint/build green.
The owner's capture-vs-composition check confirmed the wire sends exactly
what composes (byte-identical save the nodeId paragraph ebfe058 had since
changed). This wave removes the implementation meta that leaked into the
prompts and reorders so the method carries weight:
- base: owner's new opener verbatim (install understanding; the
understanding definition — which absorbs the old 'Understanding is
structure' paragraph); Voice moved in from shared/10 (deleted); the
philosophy keeps edge-dependence + logistics ('standard learning'
dropped per owner); intro's two-agents/fragments sentence gone.
- teacher/05-method opens with the owner's methodology bridge ('No other
teaching methods come close') — paragraph 3 of the opener, placed here
so the shared base never points the prober at methodology it doesn't
carry.
- deleted: teacher/60-probing-in-brief (self-evident from shared history;
its mid-lesson mini-probe move salvaged into 20-teaching as one
sentence), the 'Session shape — the durable artifact' section
(extraction-pipeline meta), the fragments-meta lines in shared/20 and
05-method, 'the transcript's seam' phrasing, prober's 'the teacher
that takes over' / 'the handoff is automatic'.
- composition reorder (listSourceSegments): base -> the agent's own
fragments -> shared/ appendix. Teacher method now starts at 12% in
(was 62%); prober doctrine at 34%. shared/20 opens with the owner's
decision rule (quiz only for known-correct-answer, ask for everything
else).
- HANDOFF_TEXT: the owner's user-message version — first-person, paces
the planning (unconditional truths, motivated derivations), ends at
plan_init + accept-or-changes.
Teacher 31.4k -> 28.7k chars; prober 10.0k -> 9.6k. Gates: typecheck 0,
1018/1018, lint clean, build green. (Suite runs 16s; the earlier 10-min
timeout was stale node_modules after master's df1328e 0.87.1 sync —
npm install fixed it.)
The Accept/Decline verdict gate is gone (owner ruling 2026-09-26):
presenting the plan ends the teacher's turn; the learner's next message
is a natural reply. Teaching begins at the first quiz call tagged with a
nodeId (probe quizzes carry none) — both folds (view phaseAt3, native
phaseAt3Lh) advance on the call itself, and the teach divider renders
before that whole assistant block. No backwards compat: verdict markers,
the verdict input event, optimistic appends, composer buttons, and
projection all deleted; prompts and docs rewritten to the natural flow.
Three owner rulings from the gradient-descent session
(chat_muhskq6p_e8c3600b — 7 failed quiz calls, answers leaked in
option descriptions, planning divider floating at the transcript top):
1. RETRYING LINES (general): any tool call that errors back to the
agent (validation failure, malformed args — the retry loop) renders
one quiet "Retrying…" SystemLine instead of silence. Question tools
previously rendered null, so a flailing quiz loop read as a stall.
Aborts are terminal ("Operation aborted") and stay silent. Verified
live: exactly 7 lines render at the 7 failure sites of the session.
2. QUIZ OPTION DESCRIPTIONS: NUKED. The model used them to telegraph
correctness in every quiz of the session ("that moves uphill — it
climbs f instead of descending it") — answerable by elimination.
The field is gone from BOTH quiz schemas (probe + teach); ask keeps
it (ungraded — nothing to leak). The dock additionally suppresses
descriptions for quiz kind, so pre-fix records stop leaking too.
Verified live: the session's pending quiz renders bare labels.
Plus the diagnosed failure-mode fixes: GLM sometimes emits `options`
as a JSON-encoded string (6 of 7 failures). prepareArguments hooks
on all three question tools coerce it BEFORE pi's validation (the
call lands instead of bouncing); the client coerces again in
normalizeOptions (pi persists raw call args). Schema descriptions
hardened ("REQUIRED ... never a JSON-encoded string").
3. DIVIDERS AT THE MARKERS: the probe-handoff SystemLine
("Preparing your plan…") IS NOW the Planning divider; the accepted
verdict IS NOW the Teaching divider ("✓ Plan accepted" line gone) —
one signal per seam, not two. The fold-based divider block is
DELETED: Wave D grouping merged the whole probe into one giant
assistant group, so the inclusive-fold comparison floated the
divider to the transcript top (reproduced against the real record:
6 view messages, phase flipped at the giant group). The markers
render in the right spot by record construction. A DECLINED verdict
is not a seam — it keeps the "↻ Plan revision requested" line.
Verified live: plan divider after the probe concluded, teach
divider after the plan presentation, nothing at the top.
Tests: 1004/1004 — string-coercion pins (normalizeOptions + the
prepareArguments hooks on all three tools, identity fast path),
quiz-schema-has-no-description pin (ask keeps it).
amosblomqvist