Methodology fix: gen_real_queries.go gains -offset N flag. Every prior real_NNN test sourced queries from rows 0-9 of fill_events.parquet (default -limit 10), so the substrate's published "8/10 cold-pass top-1 = judge-best" was measured on a memorized slice, not held-out data. real_006 samples 50 fresh rows (offset 10, never seen by the workers or ethereal_workers corpora). Same harness, same local qwen2.5:latest judge, same K=10. ~14 min wall total. Local-only, no cloud calls. Headline findings: - Cold-pass top-1 = judge-best (rank match): 41/50 (82%) vs real_001's 8/10 (80%) — substrate generalizes at rank level. - Strict (rating ≥ 2): 34/50 (68%) — 12-point drop from real_001's 80%. ~7 of 41 "no-discovery" queries had cold top-1 the judge rated 1; the corpus has gaps for some role-city combos in the v3 slice. - Verbatim lift: 9/9 discoveries → warm top-1 (clean, matches real_001 2/2) - Paraphrase recovery: 6/9 → top-1, 9/9 any-rank - Quality regressed: 3/50 — Q43 is the structural one Q43 (Packer at Midway Distribution / Chicago IL) regressed from rating 5 to rating 2 on warm pass with `warm_boosted_count=0` and `playbook_recorded=false`. Q18 (Shipping Clerks at the same client+city) recorded a playbook entry. The regression suggests Q18's recording leaked into Q43 via the warm-pass playbook corpus retrieval surface even though the role gate from real_002 should have blocked it. Three possible paths: extractor failed on one query, gate fires on boost path but not Shape B inject, or cosine drift puts the recorded worker close enough to Q43's embedding that warm-pass retrieval picks it up directly. Diagnosis is the next move. Three same-(client, city) clusters tested: - Heritage Foods Gary IN × 3 distinct roles: clean, distinct workers - Riverfront Steel Columbus OH × 4: cosine-level confusion (Q9/Q25 surface same worker w-281 for Assemblers vs Quality Techs at cold- pass), but no playbook bleed - Midway Distribution Chicago IL × 3: Q43 regression as above What this confirms: substrate works on the fresh distribution at the rank level, verbatim lift is real, paraphrase recovery is real. What this falsifies: real_002's role-gate fix is not structurally airtight. The bleed pattern can still fire under conditions the prior tests didn't reach. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
reports/reality-tests — does the 5-loop substrate actually work?
Reality tests measure product outcomes, not substrate health. The 21 smokes prove the system runs; the proof harness proves the system makes the claims it claims; reality tests answer: does the small-model pipeline + matrix indexer + playbook give measurably better results than raw cosine?
This is the gate from project_small_model_pipeline_vision.md: "the playbook + matrix indexer must give the results we're looking for." Single load-bearing criterion. Throughput, scaling, code elegance are secondary.
What lives here
Each reality test is a numbered run that produces:
<test>_<NNN>.json— raw structured evidence (per-query data, summary metrics)<test>_<NNN>.md— human-readable report with headline metrics, per-query table, honesty caveats, next moves
Runs are append-only. Earlier runs stay in tree as historical baseline.
Test catalog
playbook_lift_<NNN> — does the playbook actually lift the right answer?
Driver: scripts/playbook_lift.sh → bin/playbook_lift
Queries: tests/reality/playbook_lift_queries.txt
Pipeline: cold pass → LLM judge → playbook record → warm pass → measure ranking shift.
The headline question: when the LLM judge finds a better answer than cosine top-1, can the playbook boost it to top-1 on the next run? If yes, the learning loop closes; if no, the matrix layer + playbook is infrastructure for a thesis that doesn't pay rent.
See the run reports for honesty caveats — chiefly that the LLM judge IS the ground-truth proxy.
Running a reality test
# Defaults: judge resolved from lakehouse.toml [models].local_judge,
# workers limit 5000, run id 001
./scripts/playbook_lift.sh
# Re-run with a different judge to check inter-judge agreement
# (env JUDGE_MODEL overrides the config tier)
JUDGE_MODEL=qwen3:latest RUN_ID=002 ./scripts/playbook_lift.sh
# Smaller scale for fast iteration
WORKERS_LIMIT=1000 K=5 RUN_ID=dev ./scripts/playbook_lift.sh
Judge resolution priority (Phase 3, 2026-04-29):
-judgeflag on the Go driver (explicit override)JUDGE_MODELenv var (operator override)lakehouse.toml [models].local_judge(default)- Hardcoded
qwen3.5:latest(last-resort fallback if config missing)
This means model bumps land in lakehouse.toml, not in this script or
the Go driver. Bumping local_judge to a stronger local model (e.g.
when qwen4 ships) takes one line.
Requires: Ollama on :11434 with nomic-embed-text + the resolved judge
model loaded. Skips cleanly (exit 0) if Ollama is absent.
Interpreting results
Three thresholds matter on the playbook_lift tests:
| Lift rate (lifts / discoveries) | Verdict |
|---|---|
| ≥ 50% | Loop closes — playbook is doing real work, move to paraphrase queries |
| 20-50% | Lift exists but inconsistent — investigate boost math (score × 0.5) or judge variance |
| < 20% | Loop is not pulling its weight — diagnose before adding more components |
A separate concern: discovery rate (cold judge-best ≠ cold top-1). If discovery is itself rare (< 30% of queries), cosine is already close to optimal on this query distribution and the matrix+playbook layer has little headroom. That's not necessarily a bug — but it means the value gate has to come from somewhere else (multi-corpus retrieval, domain-specific tags, drift signal).
What this is not
- Not a benchmark. No comparison against external systems; only internal cold-vs-warm.
- Not a regression gate. Each run is a snapshot. Scores will drift with corpus changes, judge updates, and playbook math tuning. Don't wire
just verifyto demand a minimum lift. - Not human-validated. The LLM judge is the ground truth proxy. Sample 5-10 verdicts manually per run to sanity-check the judge isn't pathological.