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…t "When to defer" pattern (existence-archaeology + persona-notebook layer) Second of three worked examples Aarav (skill-expert) recommended on PR #1244's review of B-0169 before skill-creator authors the decision-archaeology SKILL.md body. Different sub-mode from worked example #1 (supersession- archaeology). This case is **existence-archaeology** — why does this artifact exist + why is it shaped this way? 3 properties make this case complementary to #1: 1. Different sub-mode (existence vs supersession) 2. Persona-notebook layer (Layer 9) carries the load-bearing answer; Layer 8 (named-decision memos) returns nothing — demonstrates the skill must not skip persona notebooks 3. ADR cross-reference (Layer 7) shows the elevation-to-doctrine path: pattern existed first (2026-04-19); persona-notebook recognition came second (2026-04-20); ADR canonicalization came third (2026-04-21) Walks all 11 procedure layers concretely: - Layer 2: blame on .claude/skills/mathematics-expert/SKILL.md L30-49 — single commit (5fdc72b) owns all 20 lines - Layer 3: PR #27 "Round 34: factory + public-repo alignment + first DB tests" - Layer 4: git log -S "umbrella exists to" — verbatim string unique; pattern not copy-replicated to other umbrellas - Layer 5: N/A (not code, not function) - Layer 6: round-history shards confirm timeline - Layer 7: docs/DECISIONS/2026-04-21-router-coherence-{v1,v2} cite the umbrella's pattern as the canonical exemplar - Layer 8: no named-decision memo — substantive negative - Layer 9: memory/persona/aarav/NOTEBOOK.md round 41 (2026-04-20) IS the load-bearing layer ("strong When to defer block ... other umbrellas should pattern-match on") - Layer 10: no specific docs/research artifact (pre-Drive-bridge) - Layer 11: not in WONT-DO; no retired-skill — substantive negative Synthesized answer: doctrine's emergence took 3 days across 3 distinct layers (commit → notebook → ADR). The block is "load-bearing" because narrow-siblings exist at the same router-trigger surface; without explicit defer-block, the umbrella + narrow-siblings compete for routing. Demonstrates 5 properties for the SKILL.md design: 1. Single-commit blame is common for existence-archaeology; keep going past Layer 2 2. Persona notebooks are non-trivially load-bearing 3. Doctrine emerges across layers + dates, not in a single moment 4. Substantive negatives confirm + locate the load-bearing layer 5. Both worked examples walk all 11 layers; only answer-shape differs across modes 2/3 worked examples now landed; #3 (BP-24 attribution-archaeology) pending. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
…2/3 examples ready for skill-creator Decision-archaeology worked example #2 (mathematics-expert "When to defer" pattern, existence-archaeology + persona-notebook mode) authored + opened PR #1263. Cross-mode worked-example coverage vindicates Aarav's BP-20 finding: one skill body, multiple named modes; same 11-layer procedure produces different answer shapes per sub-mode. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
…mily-emulation consent-gate (attribution-archaeology + sacred-tier substrate mode) Third of three worked examples Aarav (skill-expert) recommended for B-0169 before skill-creator authors the decision-archaeology SKILL.md body. Different sub-mode from #1 (supersession) + #2 (existence + persona-notebook). This case is **attribution-archaeology** — who decided + under what authority — composed with **sacred-tier substrate handling** discipline. Walks all 11 procedure layers respectfully: - Layer 2: blame on docs/AGENT-BEST-PRACTICES.md BP-24 → commit 5fdc72b (Round 34, same as #2) - Layer 3: PR #27; subsequent edit only commit 424305f (Elisabeth→Elizabeth spelling fix 2026-04-28) - Layer 4: "consent-substitute" + "parental AND-consent" unique to BP-24 + memo; not propagated - Layer 7: NO ADR — substantive negative confirming default-refuse posture has held since 2026-04-19 - Layer 8: cites memory/feedback_no_deceased_family_emulation_* by path only (sacred-tier handling); does NOT reproduce - Layer 9: cites memory/user_sister_elizabeth.md by path only (sacred-tier handling); does NOT reproduce - Layer 11: NO WONT-DO entry, NO triggering skill — substantive negatives confirming operational stability Synthesized answer covers 4 dimensions: 1. Authority origin (maintainer authored the rule constraining his own authority — recursive self-binding) 2. Stability since (zero substantive edits in 14+ days; only spelling correction) 3. Three-surface canonical pattern (public rule + named memo + user-memo) 4. Self-binding authority structure (maintainer NOT consent-substitute = deliberate self-constraint) Demonstrates 5 design implications for SKILL.md: 1. Sacred-tier substrate-handling: cite paths, don't reproduce 2. Three-surface canonical pattern recognition 3. Attribution-archaeology has recursive-constraint sub-pattern 4. Substantive negatives confirm operational stability 5. All 3 sub-modes share 11-layer procedure (vindicates Aarav's BP-20 finding) 3/3 worked examples now landed. skill-creator can author the SKILL.md with confidence: 3 distinct sub-modes (supersession + existence + attribution) + 2 secondary modes (persona-notebook layer + sacred-tier substrate) all empirically grounded. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Pull request overview
Adds research-grade “decision-archaeology” worked examples (including BP-24 sacred-tier handling) to ground backlog row B-0169 with concrete, layered evidence trails.
Changes:
- Add worked example #2 documenting an existence-archaeology investigation of the
mathematics-expert“When to defer” pattern. - Add worked example #3 documenting attribution-archaeology for BP-24 with sacred-tier substrate handling (cite-paths-only discipline).
- Add a hygiene-history tick shard recording the worked-example progress.
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.
| File | Description |
|---|---|
| docs/research/2026-05-03-decision-archaeology-worked-example-3-bp-24-attribution-archaeology.md | New worked example #3 for BP-24 attribution/authority lineage with sacred-tier handling. |
| docs/research/2026-05-03-decision-archaeology-worked-example-2-mathematics-expert-when-to-defer.md | New worked example #2 for existence-archaeology and persona-notebook payoff. |
| docs/hygiene-history/ticks/2026/05/03/0141Z.md | New tick-history entry recording the worked-example milestone. |
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| The v2 ADR's body cites the umbrella's "When to defer" pattern as the | ||
| canonical pattern other umbrellas should pattern-match on. The | ||
| router-coherence discipline (v1 → v2) is what elevated the umbrella's | ||
| defer-block from local-skill-feature into project-wide doctrine. | ||
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| **Layer-7 output:** the load-bearing escalation happened 2 days after | ||
| the original authoring (2026-04-21 vs 2026-04-19). The pattern existed | ||
| first; the doctrine that names it as canonical came second; ADRs | ||
| canonicalize the doctrine. |
| ### Layer 6 — Round-history shards | ||
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| ```bash | ||
| grep -rln "When to defer\|mathematics-expert" docs/hygiene-history/ticks/2026/04/19 docs/hygiene-history/ticks/2026/04/20 |
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| - ⏳ Worked example #3 — BP-24 deceased-family-emulation rule | ||
| (attribution-archaeology mode + sacred-tier substrate handling). | ||
| Pending; lands in a subsequent PR. | ||
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| Once worked example #3 lands, skill-creator can author |
| ### Layer 6 — Round-history shards | ||
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| ```bash | ||
| grep -rln "BP-24\|deceased.family\|sacred-tier" docs/hygiene-history/ticks/2026/04/19 docs/hygiene-history/ticks/2026/04/20 |
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P2 finding on #1265: node-class table listed `memory/feedback_*.md / project_*` — the second variant missing the `memory/` prefix. Per the path-form-drift sub-class catalogued in the verify-then- claim memo, adjacent path citations should use uniform form. Updated to `memory/feedback_*.md / memory/project_*.md`. 3 other Copilot findings on #1265 about "worked example #3 doesn't exist" / "3 worked examples claim invalid" are stale — PR #1264 (worked example #3) has merged on main, so the artifact now exists. False-positive on review-timing. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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… stale-on-merge + 1 real path-form fixed) Review-timing-creates-stale-findings pattern: PR #1265's Copilot review fired before #1264 (worked example #3) merged; 3 of 4 findings claimed substrate didn't exist. Triage discipline correctly identifies stale-on-merge vs real. The 1 real finding (path-form drift in node-class table) fixed. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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…ron 2026-05-03 architectural observation) (#1265) * free-memory: decision graph emerges from archaeologies + flywheel (Aaron 2026-05-03 architectural observation) Aaron 2026-05-03 named an emergent architectural property: *"do we end up with some decision graph or something because of the archeologies and flywheel?"* — answer is yes. The substrate already encodes a typed-edge provenance graph (DataVault-2.0-shaped, PROV-O analogue): NODES (already in substrate): - Backlog rows / ADRs / memos / skills / personas / research artifacts / tick shards / commits EDGES (typed, already encoded in frontmatter / links / blockquotes / SUPERSEDE markers / commit messages): - depends_on (ordering) - composes_with (bidirectional reference) - supersedes / superseded_by (lineage) - cites (provenance) - verifies-against (claim evidence) - attributes-to (authority structure) - closes (PR-merge → backlog row) - composes_in_skill_domain_with (future-skill-domain relation) WHAT THE ARCHAEOLOGIES + FLYWHEEL DO TO IT: - decision-archaeology (B-0169) = graph TRAVERSAL procedure (11-layer walk IS typed-edge walk) - substrate-claim-checker (B-0170) = graph INVARIANT checker (count drift = node-property invariant; existence drift = node-existence invariant; semantic-equivalence drift = edge-equivalence invariant) - expansion flywheel = graph GROWTH function (E[N>1] new nodes/edges per node touched; graph grows even while closing) - at-creation/at-pickup discipline = graph EDGE-FILLING discipline (forces depends_on edges to be filled at natural decision points) - hub-satellite separation (Aaron skill-design rule 1) = graph STRATIFICATION (hubs = stable nodes; satellites = time-evolved; cross-skill refs = links) KEY ARCHITECTURAL CLAIM: The graph is inferable from substrate without a separate graph database. Every edge is already encoded somewhere (frontmatter, markdown links, ADR blockquotes, SUPERSEDE markers, commit messages). The work is making it queryable, not making it exist. MECHANIZATION PATH (proposed, not yet built): tools/decision-graph/extract.ts (scan + emit JSON); tools/decision-graph/query.ts (parameterised queries); tools/decision-graph/check.ts (graph-invariant checker); tools/decision-graph/render.ts (Cytoscape / DOT / Mermaid). SACRED-TIER NODES need walk-discipline: cite paths; reader follows if authorized. Worked example #3 (BP-24) demonstrates this discipline operationally. THE GRAPH'S VALUE COMPOUNDS WITH BACKLOG SIZE: each new node + edge costs O(1); each new query benefits from cumulative graph. Aligns with Aaron's largest-mechanizable-backlog-wins thesis. MEMORY.md pairing: newest-first index entry landed. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * hygiene(tick-history): 2026-05-03T01:49Z — worked example #3 + decision-graph emergent property captured Worked example #3 (BP-24 attribution + sacred-tier) landed — 3/3 ready for skill-creator. Aaron's "decision graph?" question answered substantively + captured as substrate. The 5 disciplines already in flight compose into a queryable graph that compounds value with backlog size. No separate graph DB needed; edges are already encoded. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * review(pr-1265): fix path-form drift on project_* node-class entry P2 finding on #1265: node-class table listed `memory/feedback_*.md / project_*` — the second variant missing the `memory/` prefix. Per the path-form-drift sub-class catalogued in the verify-then- claim memo, adjacent path citations should use uniform form. Updated to `memory/feedback_*.md / memory/project_*.md`. 3 other Copilot findings on #1265 about "worked example #3 doesn't exist" / "3 worked examples claim invalid" are stale — PR #1264 (worked example #3) has merged on main, so the artifact now exists. False-positive on review-timing. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * hygiene(tick-history): 2026-05-03T01:57Z — #1265 4 threads triaged (3 stale-on-merge + 1 real path-form fixed) Review-timing-creates-stale-findings pattern: PR #1265's Copilot review fired before #1264 (worked example #3) merged; 3 of 4 findings claimed substrate didn't exist. Triage discipline correctly identifies stale-on-merge vs real. The 1 real finding (path-form drift in node-class table) fixed. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
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* research(decision-archaeology): worked example #2 vibe-coded reframe — substrate-content-author ≠ commit-author Aaron 2026-05-03 mid-tick correction: *"i didn't write any code all is written by you, so ask yourself that question, i've been pricipled as this is a vibe coding experiment"* Per AGENTS.md vibe-coded hypothesis: the maintainer has written zero lines of code; every line in src/, tools/, docs/, .claude/ skills/ is agent-authored. So git-blame attribution shows the COMMITTER (maintainer), not the SUBSTRATE-CONTENT-AUTHOR (some past Claude session). This is structurally load-bearing for decision-archaeology in vibe-coded projects. The "ask the original decision-maker" path is unavailable when the maintainer is principled-non-substrate- author. Substrate-content-authors are agents whose specific session-context is largely lost. Added new section "The vibe-coded reframe" near the top of the worked example covering: 1. **Three-layer attribution distinction**: commit-author / substrate-content-author / decision-authority — the three are NOT collapsible in vibe-coded projects. 2. **First-party intent recovery paths in vibe-coded projects**: - Past-agent introspection (current agent reasons about structural choice given substrate-context past-agent had) - Tick shards / persona notebooks that captured session- context (Aarav's notebook is the rare load-bearing example for this case) - Maintainer-acceptance reasoning (selection-judgment intent, not substrate-author intent) 3. **Past-agent introspection on THIS case**: the substrate context past-me had (6+ narrow math experts + skill-router matches descriptions); inferred reasoning (minimal change to make umbrella + narrow-siblings co-exist deterministically; load-bearing emphasis flags router-criticality; explicit enumeration is more conservative than "most-narrow matching" which requires unimplemented routing logic). 4. **Skill-body teaching**: inference IS the right tool for vibe-coded substrate-author archaeology; certainty about intent is not available. The vibe-coded reframe sharpens the decision-archaeology skill's self-awareness about its own limits in vibe-coded substrate. Composes with worked example #1 (supersession-archaeology) + #3 (attribution-archaeology + sacred-tier) — together the three worked examples now span ALL the substrate-author surfaces: commit-history-walking + persona-notebook-loaded + agent-author- introspection-required. Added as additive new section to avoid conflict with #1267 (which is in flight with role-ref + ls-sort + stale-ADR-claim fixes). Once #1267 merges, this PR will rebase cleanly onto it. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * hygiene(tick-history): 2026-05-03T02:03Z — vibe-coded substrate-archaeology reframe; substrate-content-author ≠ commit-author Aaron 2026-05-03 correction surfaced architectural truth: maintainer principled-non-substrate-author; git-blame shows COMMITTER not substrate-content-author. Decision-archaeology in vibe-coded projects requires past-agent introspection + persona-notebook layer + maintainer-acceptance reasoning; "ask the maintainer" path unavailable. Skill-body lesson: inference is the right tool; certainty is not available; transparency about the limit IS the discipline. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * review(post-merge): trim MEMORY.md decision-graph entry + clarify tool-status + add ask-not-infer lesson to worked example #2 8 post-merge findings on #1265 + #1267: 5x #1265 stale-on-merge (claimed worked example #3 not on main; actually IS on main since #1264 merged) — resolve as stale. 3 real findings fixed: 1. **#1265 P1 MEMORY.md entry too long** — trimmed to one-line summary per memory/README.md "keep entries terse" rule. Detail stays in memo body. 2. **#1265 P1 frontmatter description reads like tools/decision-graph/ already exists** — added "(proposed, not yet built)" qualifier; matches body Section "Mechanization path (proposed, not yet built)". 3. **#1267 ask-not-infer lesson missing from worked example #2** — added 6th demonstrated lesson explicitly: skill body teaches contributors to distinguish substrate-recoverable facts (cached) from first-party intent (source-of-truth) and ASK the available first-party source rather than infer from substrate when intent is the question. Composes with the vibe-coded reframe section added in #1268. The 1 remaining #1267 thread (ADR status reconciliation) addressed by the corrected synthesized answer; the canonical durable form section reads consistently with Layer 7's no-ADR substantive negative. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * hygiene(tick-history): 2026-05-03T02:07Z — #1265 + #1267 merged; 5 stale-on-review-timing + 3 real fixed in #1269 Review-timing-creates-stale-findings pattern recurring: when multiple PRs are in flight referencing each other's not-yet- merged substrate, each Copilot review surfaces stale findings. Triage discipline correctly identifies stale + resolves WITHOUT fix. Substrate-claim-checker v1+ needs PR-graph- awareness to avoid this class. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
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Third worked example completing Aarav's BP-14 requirement. Attribution-archaeology mode + sacred-tier substrate handling. Walks all 11 layers respectfully — cites memorial paths without reproducing content. Demonstrates recursive self-binding authority pattern (maintainer authored rule constraining his own authority).
3/3 worked examples now landed. Composes-with #1 (supersession) + #2 (existence + persona-notebook). skill-creator can author SKILL.md with 3 distinct sub-modes empirically grounded.
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