Preserve graph evidence and isolate population observers - #913
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MaxGhenis
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September 12, 2026 14:05
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Graph builds need lookup bytes and complete Frame receipts to survive replay, and a gate exception must not fabricate a declared artifact or run consumers whose inputs do not exist. This change adds explicit raw-byte codecs, complete Frame metadata storage, and executor-owned unavailable/unreached outcomes. Cached failures keep their execution status in the offline graph view. Population observers receive detached snapshots, preventing immediate or retained callback mutations from changing downstream values or cached outputs.
Charter amendments 21–24 document these contracts and supersede amendment 19's interim gate-artifact refusal. The frozen declarations, kernel protocol, interface lock, keyed-draw implementation and parity fixtures are unchanged. This is the graph-only successor to #912; country runtime/resources and release qualification remain separate work. Refs #893.
Validation: all 538 graph tests pass with zero failures/errors/skips on frozen source, including cold/required replay, nested immutable mapping/set round trips, metadata corruption, actual unreached-gate artifacts, callback isolation and graph status rendering. Ruff lint/format, interface-lock checks and CI test-inventory verification pass. No native dataset build or release claim is included.