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confidence-engine/docs/design-evolution/README.md
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robbond 642a969b18 refactor(confidence-engine): compact current-handoff to operational snapshot; archive v0.61 experiment history to ch19
- Reduce docs/current-handoff.md from 2003 → 185 lines (90% reduction)
- Move all initial-decomposition v0.61 experiment narrative to
  docs/archive/experiments/vol-1-chapters/ch19/initial-decomposition-v0.61.md
- Update design-evolution/README.md with ch19 Era 8 entry
- Add CURRENT MVP DIRECTION section (frozen; OpenAI investigation is next question)
- Fix stale branch reference in current-project-state.md
- Update Return-to-Work Summary to reflect v0.61 completion
- Update Verification Marker for v0.60/v0.61 status
2026-09-07 07:51:08 +01:00

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# Design Evolution — Canonical Archive Index
Design Evolution is historical provenance.
It records what was believed, tested, rejected, learned, and changed over time.
It is **NOT** the source of current product truth.
For current product state use:
- [`docs/current-handoff.md`](../current-handoff.md)
- [`docs/current-project-state.md`](../current-project-state.md)
Historical material should be loaded only when a specific historical question requires it.
This index enables progressive, on-demand loading of individual chapters.
---
## Chapter Index
All chapters are exact contiguous extracts from the former monolith at `docs/design-evolution-log.md`.
### Era 1 — Early Interface and Investigation Exploration
| Ch | Path | Source Lines | Summary |
|----|------|-------------|---------|
| 1 | [ch1/experiments-01-to-06-and-phases-1-to-4.md](../archive/experiments/vol-1-chapters/ch1/experiments-01-to-06-and-phases-1-to-4.md) | 1352 | Phases 14 and Experiments 0106. |
| 2 | [ch2/early-reasoning-and-provenance-discovery.md](../archive/experiments/vol-1-chapters/ch2/early-reasoning-and-provenance-discovery.md) | 3541122 | Experiments 0720 and emerging-direction material. |
| 3 | [ch3/phase-transition-and-emerging-directions.md](../archive/experiments/vol-1-chapters/ch3/phase-transition-and-emerging-directions.md) | 11241216 | Phase transition, graph as source of truth, Experiments 2122. |
### Era 2 — State Assessment and Passive Classifier Work
| Ch | Path | Source Lines | Summary |
|----|------|-------------|---------|
| 4 | [ch4/passive-classifiers-and-explore-contract-validation.md](../archive/experiments/vol-1-chapters/ch4/passive-classifiers-and-explore-contract-validation.md) | 12181501 | Experiments 2325B and closeout material. |
| 5 | [ch5/context-inventory-routing-and-handoff-infrastructure.md](../archive/experiments/vol-1-chapters/ch5/context-inventory-routing-and-handoff-infrastructure.md) | 15022052 | Experiments 2634 — context routing and handoff infrastructure. |
| 6 | [ch6/handoff-validation-behavior-selection-and-assessor-audit.md](../archive/experiments/vol-1-chapters/ch6/handoff-validation-behavior-selection-and-assessor-audit.md) | 20532503 | Experiments 3541 and assessor audit. |
### Era 3 — Documentation and Context-Routing Evolution
| Ch | Path | Source Lines | Summary |
|----|------|-------------|---------|
| 7 | [ch7/experiments-42-to-46.md](../archive/experiments/vol-1-chapters/ch7/experiments-42-to-46.md) | 25043069 | Experiments 4246 — Clarify readiness, "Too Broad" boundaries. |
| 8 | [ch8/experiments-47-to-51.md](../archive/experiments/vol-1-chapters/ch8/experiments-47-to-51.md) | 30703534 | Experiments 4751 — coherence diagnostic, semantic decision-relevance. |
| 9 | [ch9/experiments-52-to-52i.md](../archive/experiments/vol-1-chapters/ch9/experiments-52-to-52i.md) | 35354980 | Experiments 5252I — semantic generalisation, ambiguity normalisation. |
### Era 4 — Behaviour and Coherence Experiments
| Ch | Path | Source Lines | Summary |
|----|------|-------------|---------|
| 10 | [ch10/experiments-54a-to-54k-provenance-audit.md](../archive/experiments/vol-1-chapters/ch10/experiments-54a-to-54k-provenance-audit.md) | 49816423 | Experiments 54A54K — provenance audit chain, grounding with live inference. |
| 11 | [ch11/experiments-54l-to-54q-grounding-and-evidence-stability.md](../archive/experiments/vol-1-chapters/ch11/experiments-54l-to-54q-grounding-and-evidence-stability.md) | 64257824 | Experiments 54L54Q — grounding stability, evidence discrimination. |
| 12 | [ch12/experiment-54r-clarification-requires-source.md](../archive/experiments/vol-1-chapters/ch12/experiment-54r-clarification-requires-source.md) | 78258012 | Experiment 54R — evidence vs. user-input disagreement classification. |
### Era 5 — Semantic Relevance Experiments
| Ch | Path | Source Lines | Summary |
|----|------|-------------|---------|
| 13 | [ch13/54S-54V-clarification-target-and-answer-resolution.md](../archive/experiments/vol-1-chapters/ch13/54S-54V-clarification-target-and-answer-resolution.md) | 80138635 | Experiments 54S54V — clarification target identification, stability. |
| 14 | [ch14/54W-54Z-clarification-chain-and-target-broadening.md](../archive/experiments/vol-1-chapters/ch14/54W-54Z-clarification-chain-and-target-broadening.md) | 86369294 | Experiments 54W54Z — clarification chain integrity, target broadening. |
### Era 6 — Provenance and Grounding Experiments
| Ch | Path | Source Lines | Summary |
|----|------|-------------|---------|
| 15 | [ch15/55A-preserve-uncertainty-from-weak-clarification-answers.md](../archive/experiments/vol-1-chapters/ch15/55A-preserve-uncertainty-from-weak-clarification-answers.md) | 92969529 | Experiment 55A — preserving uncertainty from weak clarification answers. |
| 16 | [ch16/55B-separate-answer-meaning-from-resolution-judgement.md](../archive/experiments/vol-1-chapters/ch16/55B-separate-answer-meaning-from-resolution-judgement.md) | 95309748 | Experiment 55B — separating answer meaning from resolution judgement. |
| 17 | [ch17/55C-resolution-from-preserved-answer-meaning.md](../archive/experiments/vol-1-chapters/ch17/55C-resolution-from-preserved-answer-meaning.md) | 97499982 | Experiment 55C — two-stage resolution from preserved meaning. |
### Era 7 — Reasoning Refinement and Recent Product Provenance
| Ch | Path | Source Lines | Summary |
|----|------|-------------|---------|
| 18 | [ch18/55D-separate-stated-vs-inferred-meaning-through-v058-provenance.md](../archive/experiments/vol-1-chapters/ch18/55D-separate-stated-vs-inferred-meaning-through-v058-provenance.md) | 998310322 | Experiments 55D55F and v0.51v0.58 product provenance. |
### Era 8 — Initial Decomposition Hardening (frozen)
| Ch | Path | Source Lines | Summary |
|----|------|-------------|---------|
| 19 | [ch19/initial-decomposition-v0.61.md](../archive/experiments/vol-1-chapters/ch19/initial-decomposition-v0.61.md) | — | v0.61 initial decomposition: repeated-same-input stability, Qwen/Terra comparison, focused-deconstruction plumbing fix. Status: frozen for current MVP stage. |
---
## Structure Notes
- This index is the canonical routing entry point for Design Evolution provenance material.
- Physical archive files remain at `docs/archive/experiments/vol-1-chapters/`. Their locations are verified and stable.
- A later task may decide whether physical relocation is worthwhile. That decision is separate from this indexing step.
## Historical Integrity
All chapter files are exact historical records. They were not rewritten, modernised, or reconciled during extraction or migration.