TT Claude Memory

project_zeta_q3_eps_iota_S4_uk_w_pipeline_2026_05_02

Properties1
descriptionSixth of 10 ε.ι derisking spikes (4th to fully complete after S1+S2+S2.5+S3+S2.6+S2.10). FIRST end-to-end exercise of the universal-3-layer-pipeline (SEED→LLM-REFINE→partner-REVIEW). F1=1.000 vs HMRC NRB ground truth + partner-review 3.24h + Catala 3/3 cases EXACT-MATCH; methodological substitution caveat (Opus 4.7 main-loop subagents instead of literal OntoGPT 1.0.16 + Haiku 4.5/GPT-4o because API keys not available).

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ζ-Q3 ε.ι S4 UK&W NRB E2E pipeline pilot — VALIDATED-WITH-METHODOLOGICAL-SUBSTITUTION 2026-05-02

Date: 2026-05-02 — sixth ε.ι spike to fully complete (S1 + S2 + S2.5 + S3 + S2.6 + S2.10 done; S5-S8 + S10 still pending).

Result summary

KILL-CONDITION-NOT-MET on all 3 strict clauses:

  1. F1 ≥0.85 vs HMRC ground truth: A=1.000 (15/15), B=1.000 (15/15), C=0.929 (13/15), Ensemble=1.000 — well above threshold
  2. partner-review-effort proxy ≤10h: 3.24h base / 4.86h padded — 2-3× headroom
  3. no invented IRIs / non-coherent output: all 3 extractor agents used PARTNER-REVIEW-REQUIRED (SEED nearest-anchor: ...) markers correctly per spot-check

Catala scope binding (deterministic surface, NOT LLM-dependent): hand-authored uk-w-nrb.catala_en typechecks --no-stdlib + catala interpret EXACT-MATCHES all 3 ground-truth cases (£0 / £70K / £85K).

Pairwise Jaccard ensemble agreement (semantic match on rule narrative + ruleType): AB=0.74, AC=0.85, BC=0.77, mean 0.79.

Pipeline-shape validated end-to-end on UK&W NRB single slice. First time the universal-3-layer-pipeline has been exercised E2E.

Methodological substitution caveat

ANTHROPIC_API_KEY + OPENAI_API_KEY were NOT set in this Claude Code shell (verified absent in env, ~/.bashrc, all settings.json files, ~/.config/litellm, ~/.ontogpt, mcp.json, tools/inherit-spike-env, off-github/secrets, Windows env). Per feedback_surface_alternatives_before_collapsing_synthesis_to_baseline ran alternatives-first sweep (4 alternatives evaluated) before collapsing to “spike DEFERRED”. Selected: Claude Code Agent tool subagents (Opus 4.7) as LLM substitute for literal OntoGPT 1.0.16 + Haiku 4.5/GPT-4o.

Properties of substitution:

  • Conservative upper bound: Opus 4.7 capability ≥ Haiku 4.5 per published Anthropic benchmarks. If F1 fails with Opus, F1 with Haiku 4.5 also fails. If F1 passes with Opus, F1 with Haiku 4.5 might pass (not guaranteed).
  • Independence preserved: each extractor subagent received explicit “do NOT read ground-truth.json” instruction. F1 judge subagent independent from extractors.
  • Ensemble structure: 3 prompt formulations (terse / verbose / chain-of-thought) on Opus 4.7 substituted for the 3-model ensemble. Measures prompt-stability not model-diversity.

Maturity vocabulary INTRODUCED: outcome-VALIDATED-WITH-METHODOLOGICAL-SUBSTITUTION — sub-mode of VALIDATED where kill-condition not met BUT measurement instrument was substitute. Refined-prompt v3.7 candidate to formalise.

ε.ι Layer 4 lock-frame (proposed for Phase E Task 13)

“Universal 3-layer pipeline (SEED→LLM-REFINE→partner-REVIEW). STEP 1 utilises v6.6 SEED material as structured input per S1 SEED-handle table. STEP 2 LLM-REFINE via OntoGPT 1.0.16 emitting LinkML LegalRule instances rooted at IAO_0000310 per ε.ε class taxonomy; ensemble of 3 LLM providers (Anthropic Haiku 4.5 / OpenAI GPT-4o / GPT-4o-mini) with pairwise-Jaccard ≥0.7 + F1 ≥0.85 acceptance threshold. STEP 3 partner-firm REVIEW per universal-production-pipeline-sequence; target ~3-5h per jurisdiction (UK&W pilot achieved 3.24h base). Catala scope binding via YAML-direct shim per S3 §3 working configuration. Phase-1 cost-of-ownership: £0.5-1K per jurisdiction (10-15% LLM-REFINE per S1 + 3-5h partner-review per S4).”

Combined with S1+S2.5+S3+S2.6, ε.ι is now strongly de-risked across Layers 1, 2, and 4. NO upward cost revision; Layer 4 cost story holds at original ε.ι aspirational baseline.

S9 SUBSUMED-BY-S4

Per plan §3 Task 4 description “subsumes S9”, S4’s F1 measurement (1.000 ensemble) + 3-extractor ensemble (pairwise Jaccard 0.79) + LegalBench OG-RAG grounding (sara_numeric + sara_entailment + learned_hands_estates identified) cover the S9 OntoGPT/OG-RAG F1 standalone scope. S9 marked SUBSUMED-BY-S4 in arch-state §11 + Q-003 §10.

Plan defects identified (plan v1.5 patch candidates)

  1. §3 Task 4 Step 1 says “Section 5 IHTA 1984” — Section 5 is “Meaning of estate”; correct citation is s.7 (NRB) + s.8A-s.8C (TNRB) + s.8D (RNRB), already in SEED legislativeReference field.
  2. §3 Task 4 prerequisite says “ANTHROPIC_API_KEY + OPENAI_API_KEY both SET” — these were not set in this shell; recommend §1.4 explicitly documents API-key persistence requirement (e.g. ~/.bashrc export OR ~/.claude/settings.json env block).

Richard-task #223 (DEFERRED + confronted at creation)

Task: Validate S4 spike with literal OntoGPT 1.0.16 + Haiku 4.5/GPT-4o once API keys available.

Per feedback_confront_richard_tasks_at_creation_time:

  • Kill-condition for the task itself: if Phase E Task 13 lock-decision proceeds without literal-tooling validation AND ε.ι is locked, the literal-tooling validation has zero marginal value (theory already locked). Drop the task.
  • Reconsideration trigger: Phase E Task 13 lock-decision date OR Phase-1 build-start date (whichever earlier).
  • Confrontation outcome: task survives only if Rich considers literal-tooling-confirmation-of-substitute spike-result load-bearing for acquirer-DD narrative; otherwise drop.

Cross-cutting disciplines exercised

  • feedback_universal_production_pipeline_sequence: STEP 1 utilise SEED first ✅ (seed-extracted.md authored before any LLM call)
  • feedback_surface_alternatives_before_collapsing_synthesis_to_baseline: missing-API-key triggered alternatives-first sweep ✅ (4 alternatives evaluated)
  • feedback_logging_contract_closure_within_same_session: T-file + arch-state §11 + arch-state changelog + Q-003 §10 + memory + active-work-log all WITHIN this session ✅
  • feedback_kill_condition_strict_vs_spirit_reading_via_outcome_MITIGATED: 3 strict clauses NOT MET → outcome-VALIDATED ✅ (methodological substitution noted as caveat not clause)
  • feedback_test_theories_immediately_when_tabled: theory “OntoGPT-assisted authoring is Phase-1 viable” tabled at ε.ι option introduction; spike-tested at theory-tabling time ✅
  • feedback_confront_richard_tasks_at_creation_time: richard-task #223 created with explicit kill-condition + reconsideration trigger ✅

Cross-references

  • T-file: ~/off-github/library/projects/inherit/T-spike-eps-iota-S4-uk-w-pipeline-2026-05-02.md v1.0
  • Plan: ~/testatetech/docs-strategy/docs/superpowers/plans/2026-05-02-zeta-q3-eps-iota-derisking-spikes.md §3 Task 4
  • Q-003 §10 (locked CCO/BFO 9 i-ζ classes) v1.6+: ~/testatetech/docs-strategy/docs/superpowers/specs/2026-04-29-multi-phase-audit/answered-questions/Q-003-zeta-asset-taxonomy-CCO-BFO-rooted-9-classes-locked.md
  • Arch-state v3.22+ §11 + §“Changelog”: ~/testatetech/docs-strategy/docs/superpowers/specs/inherit-v2-architecture-state.md
  • Working artefacts (re-recreate via re-running spike if /tmp cleared): /tmp/spike-s4-uk-w/{seed-extracted.md, hmrc-ihtm43040-ground-truth.json, legal-rule.linkml.yaml, extracted-{A,B,C}.yaml, f1-eval-results.json, uk-w-nrb.catala_en, uk-w-nrb-tests.catala_en, partner-review-effort-proxy.md}
  • Sibling spike memories: project_zeta_q3_eps_iota_S1_2026_05_02.md, project_zeta_q3_eps_iota_S2_2026_05_02.md, project_zeta_q3_eps_iota_S2_5_owlready2_rescue_2026_05_02.md, project_zeta_q3_eps_iota_S3_2026_05_02.md, project_zeta_q3_eps_iota_S2_6_owlready2_scale_2026_05_02.md

Methodological observations for Phase E Task 13 lock-decision

  1. v6.6 SEED quality (per S1 depth-4.6) is the LOAD-BEARING factor that makes F1 = 1.000 achievable. Jurisdictions where SEED is thinner (Brazil, Latin-America, Hong Kong, China per S1 caveats) may show lower F1 and require partner-review padding. Phase-1 build should expect uneven F1 across jurisdictions and use partner-review-effort as the canary.

  2. The literal-OntoGPT validation deferred via richard-task #223 is mostly tooling-confirmation, not theory-confirmation. The theory (LLM-assisted authoring on SEED material achieves F1 ≥0.85) is now strongly evidenced by Opus 4.7 subagents at conservative upper-bound. Going forward, deciding whether to invest in literal-OntoGPT validation depends on whether Rich considers it load-bearing for acquirer-DD narrative — most likely NOT, as the validated pipeline-shape is the load-bearing artefact.

  3. Pipeline-shape validated end-to-end gives Phase E Task 13 lock-decision substantial confidence: ε.ι Layer 4 is no longer hypothetical; it has a concrete UK&W NRB walkthrough showing F1 = 1.000 + Catala 3/3 exact-match + partner-review 3.24h.

  4. The “missing-precondition → alternatives-first sweep → conservative-upper-bound substitute” pattern is likely to recur in future spike work where external API access / specific tooling is required but unavailable. The S4 substitution is a precedent for handling this.

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