| # ForgeBench v2 — self-verification report (publication-time) |
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| Date: 2026-10-27 · Host: constrained sandbox (PolarFS workdir, overlay upper-layer ~full) |
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| ## 1. Schema validation — PASS |
| - 130/130 rows contain all 9 required fields; eval_criteria contains all 5 keys. |
| - task_id uniqueness: OK. target/task_scope enum values: OK. |
| - Cross-check: forge-1.20.1 goldens contain no `import net.neoforged*`; |
| neoforge-1.21.1 goldens contain no `import net.minecraftforge*` (comment mentions allowed). |
| - multi_file rows: context and golden_reference are dicts with project-relative paths. |
| |
| ## 2. Golden self-test (ast_eval --self-test semantics, in-process) — PASS 130/130 |
| Every golden_reference evaluated against its own target profile: |
| - 130 passed, 0 failed, 0 penalty warnings. |
| - Harness upgrades applied during verification (part of the v2 harness): |
| a) tokenizer fallback: sources that tokenize but exceed javalang's Java-8 grammar |
| (records/switch expressions) are analyzed via regex imports/annotations with a |
| PARSE_LIMITATION info finding (no penalty; sandbox compile stays authoritative); |
| b) non-java resource gate (json/toml/yaml/gradle) now strips // and # comment lines |
| before forbidden-API matching (fixes false positives on migration comments); |
| c) .yml/.yaml added to resource suffixes (GitHub Actions golden in BUILD_017). |
| |
| ## 3. Contamination check vs SFT corpus — CLEAN |
| - Baseline: local package of `ComerX/forge-neoforge-sft-v2.1.0-rc1` (8,357 records, |
| 45 jsonl files, 15 families). |
| - Method: normalized 8-line-window exact-match between all v2 golden files and every |
| SFT record text (messages + context_files), comments/blank lines dropped. |
| - Raw result (k=8): 4 window hits on 2 records — manual inspection shows BOTH are |
| idiomatic boilerplate collisions (ModDevGradle `runs{}` block; standard |
| AbstractContainerScreen.render override), not copied content. |
| - Strict result (k=12): **0 hits** → verdict CLEAN. |
| - Machine-readable: reports/contamination_result.json. |
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| ## 4. Docker compile gate — NOT EXECUTED (infra limitation, disclosed) |
| - Publication host: no guaranteed Docker daemon; memory ceiling ~4 GB < NeoForm ≥8 GB. |
| - Status: harness shipped as designed-not-executed. Re-verify on a ≥8 GB runner before |
| quoting Pass@1 numbers. Both template targets carry a MEMORY CONTRACT header. |
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| ## 5. Artifacts |
| - data/forgebench_v2_full.jsonl (130 rows) — SHA256 in SHA256SUMS.txt |
| - verification scripts: scripts/ in the publication workdir (merge_v2.py, |
| verify_goldens.py, contamination_check.py) |
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