project_first_vertical_slice_symmetric_2026_04_24

Decision date: 2026-04-24T22:55 (end of Phase-A complete session); EXPANDED 2026-04-26T22:00 (A-99 jurisdictional-scope expansion) Decision author: Rich Davies Question framing source: Outstanding-questions review after Phase-A complete; foundational-leverage question identified as “first-complete-vertical-slice target”

Lock

Option G — Phase-1 treats all 8 jurisdictions equally. No early bet. Symmetric treatment; no jurisdictional emphasis in Phase-1 authoring; higher Phase-1 authoring cost but deeper Phase-1.5 stress-test signal; zero commercial-partner lock-in.

2026-04-26 expansion (A-99)

Phase-1 scope expanded from 6 jurisdictions (E&W + Scotland + Switzerland + Islamic + Hindu + Jewish) to 8 jurisdictions (adds Texas + Florida) per Rich directive 2026-04-26: “e-signed wills are inevitably going to become more common. I think Texas and Florida in the USA have been the first to adopt them. We need to build with the future in mind. … add them to the initial jurisdictions … stop drifting to UK orientated”. Texas (Estates Code SB 1827 path) + Florida (Electronic Wills Act 2020) both permit electronic execution + remote-online-notarization (RON). Rationale: build the electronic-wills + RON primitives at Apache-core layer NOW, with Texas + Florida as testbed jurisdictions, positioning the standard for global adoption rather than UK-first-then-extend. Strict-form discipline memory feedback_stop_uk_drift_international_from_day_one_strict saved same date.

Rationale alignment with prior locks

• feedback_inherit_v2_international_from_day_one — “architecture is international; don’t pigeon-hole v2 as E&W-first” — directly upheld
• project_v2_architecture_locked_2026_04_22 — Phase-1 commits to E&W + Scotland + Switzerland + all 3 faith traditions; G-lock confirms symmetric depth across all
• feedback_international_english_for_inherit_v2 — international audience positioning (ISO PAS / AI-vendor ecosystem); symmetric treatment reinforces

Cascades (apply to Phase-B/C/D/E onwards)

Phase-B (Wills/Trusts/Probate authoring briefs)

• All 3 briefs present ALL jurisdictions at equivalent depth
• Library grounding pulls from multiple sources per module: parry-kerridge + barlow + hudson + law-commission (E&W) + spice-inheritance-scotland (Scots) + reid-de-waal-zimmermann (Swiss/civil-law) + hallaq (Islamic) + bhattacharyya-panda (Hindu) + saiman (Jewish)
• No “primary” jurisdiction per module; no reduced-depth for “secondary” jurisdictions
• Estimated Phase-B authoring cost +30-50% vs single-jurisdiction-primary approach

Phase-C (meta-lift specs)

• Catala crate framework — abstract-first (crate architecture patterns + multi-jurisdiction exemplars) rather than single-jurisdiction worked-example
• Akoma Ntoso + ELI/ECLI — corpus spans UK + EU + Swiss + multi-faith sources
• SSI + DID + VC — no preferred issuer jurisdiction
• InheritKit commercial-model — three-track badging applies symmetrically across jurisdictions (no “launch jurisdiction” tier emphasis)

Phase-D (remaining T-NEW queue)

• T-NEW-CL-01 SD2 RightTypeScheme seeds — ALL 7 tradition-Rights land at Phase-1 (Scots legal rights / Pflichtteil / mahr / bechor / lobola / stridhan / meacao) per parent D 84.4% lock. No partial-seed or defer-subset options.
• T-NEW-CL-03 Delegation — jurisdiction-symmetric
• T-NEW-CL-04 Pass-outside-estate — primitive design serves all jurisdictions
• T-NEW-03/04/06 — symmetric treatment

Phase-1.5 A-25 stress-test

• 21 extensions × 9 modules = 189 cells stress-tested uniformly
• No jurisdiction-first ordering; no early-completion cells
• All cells treated as Phase-1.5 gate blockers (4-6 week budget)

Brand-architecture rollout

• IW (InheritWills) launch — deferred until all Phase-1 jurisdictions complete, OR explicit multi-jurisdictional launch from day one
• No “E&W-first” launch assumption
• Consistent with OpenInherit stealth-discipline — public release only at Phase-1 complete + ISO-track submission

Commercial conversations

• No partner priority queue; whichever partner responds first
• Damien Behan (Brodies / Scots) can resume at his pace; no acceleration
• Al Rayan Bank (Islamic) — C-3 demand signal noted; not prioritised above other jurisdictions
• AI-vendor conversations (Anthropic/OpenAI/Google) continue independent of jurisdictional partner track

Library-grounding discipline

• ALL 6 library depth areas developed in parallel (E&W + Scots + civil-law + Islamic + Hindu + Jewish)
• No “deep one first” pattern; continuous symmetric acquisition
• Research-request backlog prioritised by cross-cutting impact, not by jurisdiction

Anti-pattern to avoid (per this lock)

• Do NOT let partner-outreach friction drift Phase-1 into “whichever partner is responsive” priority. Stealth discipline per feedback_stealth_discipline_partner_friction means commercial pull should not distort architectural symmetry.
• Do NOT apply “commercial tractability” arguments to authoring-brief emphasis. That’s how E&W-first creep happens.
• Do NOT frame Phase-1 authoring sequence as “start with most-mature jurisdiction.” The Seq G1 sequence is ALREADY about gap-discovery optimality (per A-24), not jurisdictional priority.

Implications for Rich-time budget

Phase-B/C/D symmetric-depth authoring estimated +30-50% Rich-review time vs jurisdictional-primary approach. Trade-off accepted per G-lock: deeper international foundation, later ISO PAS submission-track strength, better Phase-1.5 stress-test signal.

Cross-references

• docs/superpowers/specs/inherit-v2-architecture-state.md v2.10 §frontmatter open_questions — updated to reflect resolution
• docs/superpowers/specs/2026-04-24-phase-a-session-summary.md v1.0 — companion session record
• project_v2_architecture_locked_2026_04_22.md — architectural jurisdictional commitment underlying this product-level lock
• feedback_inherit_v2_international_from_day_one.md — underlying discipline

Revisit conditions

Re-open this question if:

• AI-vendor commercial conversation reveals strong preference for specific-jurisdiction first
• Partner conversation produces concrete first-launch opportunity (e.g. Al Rayan Bank committed partnership) materially ahead of other partners
• Phase-1.5 stress-test surfaces evidence that symmetric-Phase-1 can’t converge within budget
• Rich changes commercial strategy via explicit directive

Until then: G-lock stands. Phase-B/C/D/E proceed on symmetric-jurisdictional footing.