learning-ledger.md sync + plan-wide acceptance probe

Goal

Document the matrix as a derived per-domain read-view sibling to the §13 decay layer in learning-ledger.md, and land the plan-wide acceptance probe that proves end-to-end per-domain narrowing on the live ledger with the stored entries unchanged. (Taxonomies are declared in §01, before their consumers — not here.)

Implementation Sketch

Update learning-ledger.md with a matrix section (derived per-domain projection; cross-references §1.1/§3/§11.4/§13). Set the aims-burden soft-demotion penalty magnitude (engine default 0). Author test_ledger_matrix_acceptance.py: build read_matrix over the LIVE aims-burden ledger joined to baseline_failing_ids.txt; assert (a) each floor cell is a row under its domain, (b) cured cells dropped, (c) each domain’s frontier non-empty + top is a real OPEN/PARTIAL coordinate, (d) no hard-DEAD cell without per-cell cell_closure_list teeth, (e) ZERO cross-domain propagation bleed (structural), (f) all 285 stored ledger entries are byte-unchanged (coordinates served from the sidecar).

Spec References

Design v7 D6/D7. Round-1 review (taxonomy declaration moved to §01; acceptance asserts append-only). learning-ledger.md §9 consumption contract. missions.md §Tooling.

Work Items

• learning-ledger.md: add the derived per-domain-matrix read-view section; cross-reference §1.1/§3/§11.4/§13; set penalty magnitude (engine default 0).
• Author the plan-wide acceptance probe over the live aims-burden ledger + floor asserting per-domain narrowing + structural zero cross-domain bleed + all 285 stored entries byte-unchanged.

Fresh intel (regenerated)

{ “schema_version”: 1, “target”: { “kind”: “plan-section”, “ref”: “ledger-matrix/s-828f6263” }, “generated_at”: “2026-06-29T17:44:49.470421+00:00”, “graph_state”: { “head_sha”: “63d372a6”, “last_code_import_at”: “2026-06-29T17:43:54.765Z”, “embedding_stale”: true, “insights_stale”: true, “cpg_stale”: false }, “surfaces”: {}, “summary”: “intel-package[plan-section:ledger-matrix/s-828f6263] agent-authored dossier”, “degraded”: false, “dossier”: { “objective_symbols”: [], “tiers”: {}, “agent_authored”: true, “constrained_symbols”: [ “assemble_corpus”, “_FORBIDDEN_REFERENCES”, “validate_ledger_append_only”, “validate_evolution_append_only”, “read_ranked” ], “difficulty”: { “class”: “routine”, “research_online”: false, “research_mode”: “auto”, “signals”: [], “plan_dir”: “/home/eric/projects/ori_lang/plans/ledger-matrix” } } }

(full dossier: rule-sync-acceptance—s-828f6263.intel.json)