docs(6a2): record PataCL/JtV overlap audit outcome (2026-04-27)

Audit established: 007 shares Harvard architecture lineage with JtV
but is NOT a current PataCL host. `given` clauses deliberately stay soft
(de Man parabasis / interpretive freedom thesis); `@sentinel` is a
complementary integrity gate, not a fact-env gate. Tier 5 backends are
runtime interpreter backends — no compile-time cross-target gate trigger.
Phase 6 adoption remains conditional on organic language evolution.

STATE.a2ml: adds [patacl-relationship] note with full audit summary.
ECOSYSTEM.a2ml: adds patacl as architectural-sibling / conditional-future-dep.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: hyperpolymath

.machine_readable/6a2/ECOSYSTEM.a2ml

@@ -18,6 +18,14 @@ tier = "2"  # 1 | 2 | infrastructure
 
 [related-projects]
 projects = [
+  { name = "patacl",
+    relationship = "architectural-sibling / conditional-future-dependency",
+    notes = """Compile-time decision substrate. 007 shares Harvard architecture lineage
+with JtV (PataCL's first adopter). `given` clause is the soft analog of a PataCL
+gate predicate but MUST remain soft (interpretive freedom thesis). `@sentinel` is a
+complementary integrity mechanism. 007 does not currently need PataCL (no cross-target
+fact environment; Tier 5 backends are runtime). Adopt only when organic need arises
+from compile-time Tier 5 backend selection. Audit: 2026-04-27.""" },
   { name = "ephapax", relationship = "sibling-standard", notes = "Linear type system research — shared concepts for linear handles" },
   { name = "wokelang", relationship = "sibling-standard", notes = "Social-awareness language in nextgen-languages" },
   { name = "eclexia", relationship = "sibling-standard", notes = "Knowledge-focused language in nextgen-languages" },

.machine_readable/6a2/STATE.a2ml

@@ -1,71 +1,47 @@
 # SPDX-License-Identifier: PMPL-1.0-or-later
 # Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
-# STATE.a2ml — Project state checkpoint
-# The Agent Meta-Language: 007-lang
-
-[metadata]
-project = "007-lang"
-version = "0.1.0"
-last-updated = "2026-03-30"
-status = "active"  # active | paused | archived
-
-[project-context]
-name = "007-lang"
-purpose = "The Agent Meta-Language — a language for agents that make agents. Six pillars: Harvard architecture, actors, capabilities, session types, linear handles, choreographies."
-completion-percentage = 55
-
-[position]
-phase = "audit-remediation"   # design | implementation | testing | maintenance | archived
-maturity = "alpha"            # experimental | alpha | beta | production | lts
-
-[route-to-mvp]
-milestones = [
-  { name = "Phase 0: EBNF specification draft", completion = 90 },
-  { name = "Phase 1: Pest parser (core grammar)", completion = 60 },
-  { name = "Phase 2: Tree-walking evaluator (layers 1-4)", completion = 70 },
-  { name = "Phase 3: Parser gap fill (types, imports, reversibility, locales, choreographies)", completion = 10 },
-  { name = "Phase 4: Full evaluator (layers 5-8)", completion = 0 },
-  { name = "Phase 5: BEAM codegen prototype", completion = 0 },
-  { name = "Phase 6: WASM/native secondary targets", completion = 0 },
-  { name = "Phase 7: Formal proofs of session type soundness", completion = 0 },
-]
-
-[blockers-and-issues]
-issues = [
-  "Public docs and papers still overstate maturity in places",
-  "Clippy does not pass cleanly across the workspace",
-  "Known proof debt remains around Harvard and broader soundness claims",
-]
-
-[critical-next-actions]
-actions = [
-  "Tighten public claims and manuscript front matter to match current evidence",
-  "Fix clippy failures and warning hotspots in live Rust crates",
-  "Add an explicit aspect-test surface to the task runner",
-  "Continue parser gaps, soundness work, and Harvard/session proof closure",
-]
-
-[maintenance-status]
-last-run-utc = "never"
-last-report = "docs/reports/maintenance/latest.json"
-last-result = "fail"  # unknown | pass | warn | fail
-open-warnings = 2
-open-failures = 1
-
-[crg]
-grade = "C"
-achieved = "2026-04-04"
-evidence = [
-  "unit: 728 passing tests in oo7-core + sub-crates",
-  "smoke: parser_tests + eval_tests (point tests)",
-  "p2p: crates/oo7-core/tests/property_tests.rs (5 proptest properties)",
-  "e2e: crates/oo7-core/tests/e2e_tests.rs (6 full-pipeline tests)",
-  "aspect: crates/oo7-core/tests/aspect_tests.rs (6 cross-cutting tests)",
-  "contract: contracts.rs module + typechecker check_program",
-  "benchmarks: criterion toolchain_bench + algebraic_dispatch_bench",
-]
-
-[ecosystem]
-part-of = ["nextgen-languages ecosystem"]
-depends-on = ["pest", "clap"]
+# STATE.a2ml v2 — Thin Session Journal for 007-lang
+# See: standards/a2ml-templates/STATE.a2ml.v2.spec.adoc
+
+@state(version="2.0"):
+phase: "implementation"
+next_action: "Complete parser gap fill (types, imports, reversibility, locales, choreographies)"
+last_action: "PataCL/JtV overlap audit completed 2026-04-27 — 007 is NOT a current PataCL host (see [patacl-relationship])"
+updated: 2026-04-27T00:00:00Z
+
+@blockers:
+- id: clippy-drift
+  description: "Clippy does not pass cleanly across the workspace"
+  since: 2026-03-30
+- id: proof-debt
+  description: "Harvard and broader soundness claims require formal Idris2 proof closure"
+  since: 2026-03-30
+@end
+
+@note(id="patacl-relationship", added="2026-04-27"):
+PataCL (PataCompiler Language) was audited for 007 applicability. Key decisions:
+
+SHARED FOUNDATION (no transfer needed):
+- Harvard binary split (Control/Data) — present independently in both
+- @total/@pure purity discipline — both enforce it (007 adds @neural tier)
+- Idris2 + Rocq proof infrastructure — both have it independently
+
+`given` CLAUSE — KEEP SOFT (deliberate):
+  007 `given` is structurally close to a PataCL predicate (data-exprs, Total purity)
+  but is EXPLICITLY a "suggestion not a guard" (de Man parabasis — interpretive
+  freedom). DO NOT harden `given` into a PataCL fact-environment gate. The softness
+  is a design commitment, not an oversight.
+
+`@sentinel` — COMPLEMENTARY (not competing):
+  Hard compile-time integrity gate (hashes grammar/type rules). Post-hoc integrity
+  check rather than pre-condition fact-env gate. Both can coexist if 007 ever needs
+  cross-target dispatch.
+
+FUTURE ADOPTION — CONDITIONAL:
+  007 could become a Phase 6 PataCL host IF it adds compile-time backend-selection
+  constructs for Tier 5 coprocessors (CUDA/Vulkan/Metal/FPGA). Currently these are
+  runtime interpreter backends, not language-level declarations — no trigger yet.
+  Organic need is the right trigger; do not force it.
+@end
+@end