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ADR-005: event log as single source of truth

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Proposed architecture decision to use an append-only execution event log
(call protocol events) as ground truth, with status/result/call-graph as
projections. Resolves OQ-06, OQ-07, OQ-08, OQ-09; reframes OQ-01, OQ-02,
OQ-10. Inspired by event sourcing discipline (notification vs state transfer)
and compute_graph ExecutionContext pattern.
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glm-5.1
2026-05-20 09:33:15 +00:00
parent 27ebbd491e
commit 2c1b2d1a15
3 changed files with 204 additions and 25 deletions
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docs/architecture/README.md
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@@ -71,6 +71,7 @@ Flowgraph is in Phase 0/1 (exploration → architecture). No code exists yet. Th
| [002](decisions/002-dag-only-graph.md) | Enforce DAG invariants — no cycles in flowgraph |
| [003](decisions/003-storage-decoupled.md) | Storage is not flowgraph's concern — in-memory graph with export/import boundary |
| [004](decisions/004-no-schema-version.md) | No schema version field in serialized format — consumers wrap in their own versioned envelope |
| [005](decisions/005-event-log-as-source-of-truth.md) | Execution Event Log as single source of truth — call protocol events as ground truth, status/result/call-graph as projections |
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