Replication package v1.0.0

Public replication package for the September 2026 four-hour Astra SQLite study.

Start with the README quickstart to try a saved implementation without a model account. Separate guides cover fresh single-agent runs, corpus acquisition, sequential/parallel grading, and reproducibility limits.

Included: 55 immutable source checkpoints, 59 logical grading results with 66 retained evaluation attempts, frozen scorer/protocol/prompts, documentation extracts, manual SQL examples, full comparison report and charts, historical usage/cost exports, MIT project license and upstream notices.

Validation: fresh public clone integrity passed; 25 unit/cleanup tests passed in GitHub Actions; runtime rebuilt; all 622 upstream corpus hashes verified; no-inference capability probe passed; manual examples and isolated grading smoke checks passed. No new live four-hour model run was launched to validate publication.

Comparison caveats: this is not a controlled agent-count comparison with Cursor. Historical API-equivalent valuations are not subscription invoices or a promised replication budget. See the report and reproducibility guide.