# Blessed Baselines

`ubuntu-latest.json` is the intended blessed baseline for the scheduled benchmark workflow.

The first blessed Ubuntu baseline was promoted from the successful PR-path benchmark run on June 5, 2026 (`run-20260605T072813Z.json` from PR #172).

The current blessed Ubuntu baseline was promoted from the successful PR-path
benchmark run on June 22, 2026 (`run-20260622T104233Z.json` from PR #224),
after the benchmark manifest switched Express `scan_usages` to a precise
location target and restored the `fmt-cpp get_definition` scenario below the
previous baseline.

It is not written automatically. Promote it deliberately:

1. Run the benchmark workflow or a local `bifrost_benchmark run`.
2. Review the JSON artifact and confirm the scenario set and timings look healthy.
3. Copy that artifact to `benchmark/baselines/ubuntu-latest.json` in the same change that explains why the new baseline is valid.

Until that file exists, the daily workflow still runs the harness, uploads artifacts, and records that compare was skipped because no blessed Ubuntu baseline is checked in yet.
