Commit Graph
12 Commits
Author SHA1 Message Date
amosblomqvist 9f64019087 physics: vertical mode's central pole is horizontal-only for everyone
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).
2026-09-30 04:36:31 +03:00
amosblomqvist af666aaa3f physics: bundles join their cluster; depth runs over the logical graph
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).
2026-09-30 04:30:25 +03:00
amosblomqvist 719f7f9934 rendering arc: the imp node becomes the argument's geometry, not a fake proposition
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.
2026-09-30 04:04:29 +03:00
amosblomqvist 4985b6f9fa chains-primary: stored chains replace typed edges; edges become a derived view
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
2026-09-30 03:22:52 +03:00
amosblomqvist 8355fbabdb delete the mappings ledger — per-job in-memory resolution + notes fingerprint guard
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
2026-09-29 02:25:32 +03:00
amosblomqvist d1b46132b9 Wave 7 close-out: the embedding ledger seam dies; notes birth via mapping lines
Part 1 — the ledger + remnants interlude (master-dispatched, owner ruling
2026-09-23: nothing configures the graph beyond chat models):

- The embedding ledger surface is gone: readEmbeddings/writeEmbeddings
  ports, the EmbeddingsLedger contract, EMBEDDINGS_FILE (config, store
  impls, graphRevision source list), and graph-deletion's vector-pruning
  step. On-disk data files stay untouched (inert history).
- The extraction embedder seam dies wholesale: ExtractionPipelineDeps
  drops the embedder dep (chat-handler + backfill/import-notes stubs go
  with it), the 'embedding' phase leaves ExtractionPhase, the usage
  capture/persist helpers die, and stages.embedding leaves
  ExtractionRunUsage (historical records keep their shape — reads are
  lenient). Extraction is two stages again, like the local-embedder era.
- Consumer-less remnants: latestQuizOutcomes + QUIZ_EVENT_KINDS,
  clusterContentId, matchClusterLabelings + Community + ClusterLabeling,
  the readClusterLabels/appendClusterLabel port seams + store impls +
  LEDGER_FILES.clusterLabels. NamingRunUsage/readNamingRuns STAY
  (standing ruling — the cost pill renders historical naming spend);
  clusterHue + MIN_CLUSTER_SIZE stay (live).
- The 'labeler' role dies: BACKGROUND_MODEL_ROLES, ROLE_SLOT, ModelRole,
  the catalog pin projections, and the UI roster strings. RolePins keys
  shrink with the union.

The notes birth fallback (owner-approved 2026-09-23, surfaced by the
interlude's live smoke: production notes imports create provenance-EMPTY
nodes (importNotes passes messages: null — the file's anchor is the
mapping line), so the provenance-only birth rule left every imported
file unclustered and invisible to the prober's session list, against the
locked file-birth ruling. A provenance-empty node now births under its
FIRST mapping line's chatId (ledger order); only notes-born nodes ever
hit the fallback (chat nodes always carry provenance; a re-encountered
node's link-append re-opens the provenance rule). Deletion-safe: mapping
lines of deleted chats are stripped alongside their provenance.

Live-verified on port 3004: a fresh notes import clusters under its
src_ id with the file path as the label, end to end with no embedder.

845/845 tests, typecheck/lint/build green.
EOF
)
2026-09-23 15:37:34 +03:00
amosblomqvist 0fcffdffaf Birth-session clustering + the prober graph-tools data seam (wave 7 chunk A)
Embeddings are dying (chunk B removes the machinery); the clusters they
used to carry become the session that created them — derived on read.

- New src/core/session-clusters.ts: birthSessionPartition groups merged
  nodes by their FIRST SURVIVING provenance point's chatId (owner-locked
  2026-09-23). Deletion is self-healing by construction: stripped-birth
  survivors re-attribute to their earliest remaining contributor, and
  empty-provenance nodes stay unclustered. Notes imports are birth-sessions
  too (owner ruling) — their label is the file path.
- graphSnapshot: clusters = the birth partition filtered >= MIN_CLUSTER_SIZE
  (the hull presentation rule), id = session id, label = session name (chat
  title / file path; a deleted record renders unlabeled). The persisted
  cluster-labelings join dies; no LLM naming pass needed anymore.
- settleGraphLayout derives the same partition from readNodes — drops its
  readEmbeddings dep. One cluster concept everywhere.
- Prober data seam (core/graph.ts, pure ports-driven like the snapshot):
  graphSessionIndex (every birth session: id, name, chat|file kind,
  createdAt/updatedAt, birth-proposition count, recency-ordered) and
  graphSessionPropositions (a session's birth propositions with the
  extractor's latest understanding level and THAT event's own timestamp —
  owner ruling: quiz outcomes are ledger evidence, they never move the
  evaluation date). Teacher's tool handlers consume these in-process.
- New agent.graphTools subsection { enabled?: boolean } (owner ruling:
  the toggle gates prober tool REGISTRATION — agent capability, agent
  section, its own subsection, NOT the tool-toggles map; absent = ON).
  Lenient sanitizer, strict settings-body parser, passthrough resolution,
  and graphToolsEnabled(effective) = graph.enabled && toggle for Teacher's
  registry wiring.

Gates: tsc clean, eslint clean, 923/923 tests, next build compiles.
Live-verified on the worktree dev data: 10 nodes → 2 clusters labeled
with their chat titles; session index + propositions carry levels and
their own timestamps.
2026-09-23 14:51:37 +03:00
amosblomqvist 652a25e382 Orphan discs in regions + orphan exemption from depth anchoring
Two follow-ups on the semantic-cluster wave, both user-reported:

1. Region coloring: edge-only dilation (the anti-double-counting rule
   from the Louvain era) left 114 of 338 cluster members completely
   uncolored — semantic clusters contain members that share no
   intra-cluster edge with anyone (90 edge-orphans + isolated
   micro-topics), and 20 of 45 clusters painted nothing at all. Fix:
   a disc (radius = dilation, same as a round cap) for exactly the
   members no intra-cluster edge stroke reached. Every member is
   painted by its edges' caps OR one disc, never both — the
   no-double-counting rule survives. Verified live: all 74
   orphans-in-clusters sit on tinted region pixels.

2. Depth modes (ORPHAN RULE): a node with no edges has no dependency
   structure, so depth-0 stamping put 90 unconnected propositions on
   the vertical baseline / radial base ring — meaning they don't have.
   Orphans are now exempt from the depth force and get the regular
   view's unprojected forces instead (full center gravity + full
   cluster pull). Structured-node projections unchanged (x-only
   gravity in vertical, none in radial; tangential-only cluster pull
   in radial). Gravity in depth modes is a custom force with EXACTLY
   d3's forceX/forceY math (strength × alpha — the first draft
   forgot the alpha and shifted the settle). Verified live: radial
   orphans follow their topics instead of the base ring; vertical
   orphans spread 1006 world units (6/90 near the baseline band vs
   90/90 before).
2026-09-13 15:05:05 +03:00
amosblomqvist f5edc7f0a5 Semantic topic clusters: local embeddings replace Louvain
Louvain only ever found the reasoning chains (the graph is disconnected
by nature — every connected component became its own cluster) and
edge-orphans could never join anything. Clusters are now RELATED TOPICS:
propositions grouped by meaning.

- Embedder (src/server/embeddings.ts): in-process transformers.js v4
  running EmbeddingGemma-300M q8 (MTEB 68.4, ~300MB one-time download),
  MRL-truncated to 512d, "title: none | text:" prefix on 100% of inputs,
  L2-normalized so cosine = dot. Model/dim mismatch voids the ledger
  (full re-embed). Injected at the composition root — the agent layer
  never imports the server layer (architecture law).
- Ledger (data/graph/embeddings.json): model + dim + vectors + the
  persisted cluster partition. Reclustering runs at the END of every
  embedding batch (post-merge hook, both front doors) — never per read
  (the agglomerative pass is ~1.5s at 338 nodes).
- Clustering (src/core/semantic-clusters.ts): hand-rolled average-linkage
  agglomerative over cosine (npm HDBSCAN is an abandoned alpha). Stragglers
  stay singletons by default; attachStragglers is the all-in toggle.
  Threshold 0.60 swept on the real graph: 26 topics, 74/90 edge-orphans
  land in real topics, 10 stragglers.
- Consumers (snapshot, settle, namer, replay) read the persisted
  partition — one cluster concept everywhere; core-survival label
  matching unchanged (20/26 topics kept labels).
- Louvain retired: detectCommunities + graphology* deps deleted
  (graphology-louvain had leaked into the client bundle since the
  clusters wave); scripts/bench-graph.ts (dead FA2 bench) removed.
- scripts/embed-graph.ts: backfill/cold-start (338 nodes in 150s
  including the one-time model download).
2026-09-13 14:29:16 +03:00
amosblomqvist 3a1c18b9de Inference-depth anchoring playground: vertical + radial modes
The graph's follows/supports edges encode derivation (premise ->
conclusion); the layout can now express that rank spatially, as a
session-only playground toggle (nothing promoted yet):

- inferenceDepths: longest chain from a base node, CYCLE-SAFE by
  SCC condensation (Tarjan, iterative) — the DAG property is typical,
  not guaranteed; cycle members share their component's depth (mutual
  support = equal footing). O(V+E), pure, deterministic.
- DepthAnchor force: per-node target scalar — vertical mode rows
  (baseline at the anchor centroid, arrows up), radial mode rings
  (foundations center, outer boundary = edge of knowledge). The rank
  is computed, not simulated: pairwise up-forces can't give baselines.
- Mode projections: gravity x-only in vertical / dropped in radial;
  cluster pull x-only in vertical / tangential-only in radial; the
  anchor re-blend preserves user arrangement in the FREE dimension
  only (x / angle) — meaning owns the constrained axis, memory owns
  the free one.
- setPhysicsTuning reheats (alpha 1): toggling a mode re-forms the
  graph live and commits the new rest state; drag release is springy
  along the constrained axis (node returns toward its level/ring).
- Sweep on the real graph: strength 0.8 = 215/216 arrows correct with
  organic sag; 1.5 = crisp rows. 174 base nodes, max chain depth 7,
  zero cycles in current data. replay-layout --depth=<mode> bakes a
  mode into the ledger for rest-state experiments.
2026-09-13 10:20:50 +03:00
amosblomqvist 975a78a304 Cluster gravity: per-cluster centroid pull force in the engine
The 'virtual node' realized as a centroid force: two allocation-free
O(n) passes per tick (membership resolved once at sim creation;
Float64Array sums). Measured indistinguishable from force-off at 338
nodes (271ms vs 272ms per 400-tick settle).

- createGraphSimulation: SimOptions.clusterPull + linkStrength +
  velocityDecay (physics controls plumbing); degree-scaled link
  stiffness so linkStrength=1 is exactly d3's default
- settleGraphLayout split into layout-settle.ts (it computes the
  Louvain partition for the pull); layout.ts stays browser-barrel-pure
- barrel no longer re-exports clusters.ts: graphology + louvain are
  fully out of the client bundle (verified against built chunks)
- replay passes the per-batch partition; CLUSTER_PULL_STRENGTH=0.15
  tuned by sweep: cluster spread 63->36 world units, centroid
  separation and total span unchanged (no blob merge, no collapse)
2026-09-13 09:52:12 +03:00
amosblomqvist 0c14ea425d Option A: incremental anchored force layout, persisted server-side
The layout now EVOLVES instead of reshuffling on every extraction. A pure
core module (src/core/layout.ts) warm-starts forceAtlas2 from the positions
ledger (data/graph/positions.json, read-modify-write like sources.json,
updatedAt stamp for future live-physics conflict handling), re-blends every
previously-positioned node toward its anchor each iteration (retention 0.85
- old placements stay recognizable, strong forces still win), seeds new
nodes near their positioned neighbors, and seeds orphans on the rim outside
the core so they read as unconnected knowledge.

- Port/store: GraphStore.readPositions/writePositions; snapshot carries
  positions when the ledger exists (optional - fresh graphs unchanged).
- Extraction pipeline settles synchronously after every merge (chat and
  notes paths), before usage persist - the next /api/graph fetch already
  reflects new nodes.
- View: the ledger IS the layout; the local one-shot FA2 pass survives
  only as a fallback when no ledger exists.
- scripts/replay-layout.ts: simulates organic growth by replaying the
  current 338-node graph one imported file at a time (real import order,
  edges activate when both endpoints exist). Real run: 338 positions in
  0.3s, 90-degree-0 orphans collecting at mean r=338 vs connected r=194.
- Also restores the cluster region fills (hull background colors) that
  6692b19 had removed on a misreading of "no glow".

Live-verified: fit zoom derives from the ledger bbox, pickAt aligns with
ledger positions at every probe, hover/click/detail-card work, 408/408
tests, typecheck/lint/build green.

Future live physics stays cheap by design: the same pure function is the
merge-time settler and the future client simulator; a pinned node is just
an anchor with full retention.
2026-09-13 08:35:42 +03:00