Date: Wednesday 22 April 2026 (PM session, continuation of the morning architecture-lock session).

What happened: Major library-grounding session ahead of the 24-Z research programme Wave-1 dispatch. Three book-acquisition batches + one online-resource batch indexed; all 24 Z-notes stubs now carry library_evidence_registered frontmatter naming primary + secondary evidence per Z.

Why: Architecture was locked 2026-04-22 AM (Ⅲ + D-ii + Option-D + α_max + 7-module + ε+δ). The 24-Z research programme was committed as the watertight stress-test before Wave-1 dispatch. Library was the bottleneck. Rich + Claude acquired + indexed 24 items to raise review quality from ~61% baseline to ~86% weighted-average confidence.

How to apply: Next session dispatches the 24-Z research programme Wave 1 via a fresh Claude Code session started from ~/testatetech/docs-strategy/. Handoff brief at docs/superpowers/scoping/2026-04-22-z-research-programme-handoff.md v1.10. Autonomous mode per CLAUDE.md §7. ntfy topic davieshq2026.

Key numbers:

  • Library inventory: ~76 → ~102 indexed items (24 new today)
  • Commits pushed today: 31cf... → 880962a → c49b087 → 315853d → 234cfe9 → 29b3fcd → b8862d3 (~15 commits across the day)
  • Git HEAD at session close: b8862d3
  • Weighted-average research confidence across 24 Z-items: ~86%
  • Six Z-items at ≥90% (Z8/Z9/Z15/Z16/Z17/Z21); only 1 at ≤70% (Z20 FINANCE)

What was indexed today (24 items, in 4 batches):

Primary book batch (11): graham-mca-2005 + lanham-ai-agents + johnston-bitemporal-data + hitzler-foundations-semweb + johnston-managing-time + meeker-open-source-for-business-4e + parker-platform-revolution + preukschat-ssi + winteringham-testing-web-apis + chishti-paytech + barlow-wills-administration. One duplicate (Benson-Grieve) archived.

Late top-up batch (3): saiman-halakhah (closes α_max Jewish-halakhic gap) + jackson-essence-software (concept-design; Alloy-author) + hudson-equity-and-trusts (Kindle alternative to Underhill & Hayton).

Online-resource batch (10) — pivoted from book-shopping after 6 consecutive Kindle-unavailable candidates: W3C VC 2.0, W3C DID Core 1.0, W3C SHACL 1.0, W3C OWL 2 Primer, OpenAPI 3.1 spec, Arazzo 1.0 spec, UK MCA 2005 Code of Practice, Law Commission Modernising Wills Vol I (2025), SPICe Inheritance Law in Scotland (2025), IETF RFC 8693 OAuth 2 Token Exchange.

Residual gap at session close:

  • Z20 FINANCE (70%) — only Z at ≤70%. PAYTECH gives breadth; Open Banking / PSD2 specialist depth thin. Not a Wave-1 blocker.

Supporting durability artifacts saved today:

  • feedback_always_check_library_indexed_first.md memory — cross-session safeguard against library-blindness
  • ~/.claude/CLAUDE.md §17.5 added — global library-awareness discipline
  • testatetech/docs-strategy/CLAUDE.md item 8 added — project-level library pointer
  • Architecture proposal v1.11 CHANGELOG — library audit + Z7/Z8/Z24 recalibration notes
  • Handoff v1.10 — Book-to-Z mapping table + online-resource batch section + residual-gaps list
  • 24 Z-notes stubs in ~/off-github/library/projects/inherit/Z<N>-notes.md — all have library_evidence_registered fields

Next session (Wave 1 dispatch): Start fresh from /home/richardd/testatetech/docs-strategy/. Primary brief is the handoff v1.10+. Autonomous mode with ntfy heartbeats. 6 parallel agents in Wave 1 (Z1-Z5 staleness-review + Z6 + Z8 + Z9 + Z11 + Z18). Wall-clock estimate ~6-7 hours for all 6 waves + consolidation + adversarial critique.