# F398 ParaSuit Branch-Rarity Parameter-Selection Evidence

This directory seals the 2026-08-13 mechanism evidence for F398. It proves
the local inverse-frequency oracle, standalone/synergy attribution, stable
bounded branch-outcome sampling, production wiring, state-triple rejection
paths, complete Python identity gate, and LLVM regression status. It contains
no target campaign and makes no coverage, solver-throughput, bug-yield, or
end-to-end speedup claim.

| Artifact | Meaning |
| --- | --- |
| `targeted-python.txt` | Eleven F398 unit, formula, persistence, and wiring tests |
| `related-python.txt` | F398 plus self-config, MPI lifecycle, feedback, AFL orchestration, TACE, and EVP regressions |
| `full-python-gate.json` | Capability-closed 980-node exact-identity Python gate |
| `targeted-lit-llvm17.txt`, `targeted-lit-llvm18.txt` | F398 Python contract under both maintained LLVM builds |
| `full-lit.txt` | Complete LLVM 18 lit gate |
| `mechanism-benchmark.json` | 1,000-run deterministic rarity/selection/state cost benchmark |
| `randomized-property.txt` | 1,000 analyses plus 1,000 MinHash order-invariance checks |
| `provider.json` | Four coordinator-campaign parameter-selection settings |
| `pytest-inventory.txt` | Canonical node-ID inventory result |
| `static-checks.txt` | Ruff, format, compilation, whitespace, and diagram gates |
| `source-contract.txt` | SHA-256 identities for implementation, tests, benchmark, and inventory |
| `upstream-revision.txt` | Exact ParaSuit research/artifact provenance and audited divergence |
| `environment.txt` | Host and toolchain context |
| `SHA256SUMS.txt` | Exact evidence-directory manifest |

The fixed four-observation oracle gives standalone baselines `A=1.5,B=0.5`,
combination scores `A=0,B=1`, and selects only `B`. The final isolated timing
run reports medians of 3.716 us for rarity analysis, 22.554 us for ParaSuit
selection, 9.274 us for the F186 hierarchy, 79.099 us for a 128-record trace,
and 700.904 us for bound three-file reload. These values measure small
synthetic Python mechanisms only.