Edge Sync Completion Status

Status: Complete for the planned Edge/S3 Sync implementation brief
Branch: main
Governing docs:

Summary

The Edge/S3 Sync track is complete for the planned six-slice scope defined in edge-sync-implementation-brief.md.

Docs complete:                    3/3
Implementation slices complete:   6/6
Runtime integration:              intentionally not started
Live network tests:               prohibited
S3 in hot path:                   prohibited
Credentials in repo:              prohibited
Automatic epistemic promotion:    prohibited

The implementation establishes local contracts, validation, activation, journaling, an object-store seam, and an optional S3-compatible adapter. It does not integrate cloud/object storage into CORE's active cognition path.

Completed documents

Document	Status	Purpose
`edge-s3-persistence.md`	Complete	Defines the edge-local / S3-cold split.
`edge-sync-artifact-contract.md`	Complete	Defines artifact classes, authority boundaries, manifests, and sync semantics.
`edge-sync-implementation-brief.md`	Complete	Defines the six-slice implementation plan.

Completed implementation slices

Slice	Status	Files
ES-0 / ES-1 — artifact authority model + contract tests	Complete	`core/sync/artifacts.py`, `tests/test_edge_sync_artifact_contract.py`
ES-2 — manifest parser/validator	Complete	`core/sync/manifest.py`, `tests/test_edge_sync_manifest.py`
ES-3 — activation ledger	Complete	`core/sync/activation.py`, `tests/test_edge_sync_activation.py`
ES-4 — local sync journal	Complete	`core/sync/journal.py`, `tests/test_edge_sync_journal.py`
ES-5 — object-store adapter seam	Complete	`core/sync/object_store.py`, `tests/test_edge_sync_hot_path_imports.py`
ES-6 — optional S3 adapter	Complete	`core/sync/s3_store.py`, `tests/test_edge_sync_s3_store.py`

Package exports are collected in:

core/sync/__init__.py

Invariants now represented in code/tests

The completed implementation codifies these rules:

Downloaded != activated.
Activated  != coherent.
Signed     != true.

And proves:

artifact authority classes are closed;
no edge-sync artifact is hot-path allowed;
runtime-affecting artifacts require signature and activation;
signed artifacts do not become admissible evidence by signature alone;
fleet observations remain speculative unless promoted through proof/review;
unknown artifact types reject;
unsupported manifest schema versions reject;
hash mismatch rejects;
missing content digest rejects when bytes are supplied;
malformed epistemic status defaults to speculative;
downloaded artifacts remain inert until activated;
activation does not confer evidence authority;
activation and rollback emit audit records;
local journal failures preserve retryable local state;
hot-path packages are statically guarded from object-store/S3 imports;
optional S3 behavior is tested with an injected fake client only.

Verification command

Run the Edge/S3 Sync test set with:

pytest \
  tests/test_edge_sync_artifact_contract.py \
  tests/test_edge_sync_manifest.py \
  tests/test_edge_sync_activation.py \
  tests/test_edge_sync_journal.py \
  tests/test_edge_sync_hot_path_imports.py \
  tests/test_edge_sync_s3_store.py

Scope intentionally not implemented

The following remain out of scope for this completed slice:

live S3 credentials;
live bucket access;
background sync daemon;
multipart upload;
object-lock enforcement;
fleet aggregation logic;
runtime pack activation against real pack stores;
motor/safety integration;
automatic teaching-pack promotion;
cloud-driven serving mutation;
S3/object-store calls from hot-path cognition.

Any of the above requires a follow-on ADR, implementation brief, or explicit continuation plan.

Hot-path boundary

The current static guard covers these hot-path directories:

algebra/
chat/
generate/
vault/
core/physics/

They must not import:

boto3
botocore
core.sync.object_store
core.sync.s3_store

Future hot-path directories should be added to the guard if the runtime boundary expands.

Completion statement

The Edge/S3 Sync track is complete for the planned local-contract scope.

The result is a safe cloud/fleet persistence foundation that preserves CORE's edge-native law:

Edge thinks and acts.
S3 remembers and distributes.
Truth still enters only by proof.

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