nx_bugforge.nx

nx_bugforge.nx -- SWE-SCALE INSTANCE MINER (bugforge-swe-scale, 2026-07-24). The oracle today is 14 hand-seeded toy candidates; a frontier harness needs HUNDREDS of real-code instances plus a learned fix corpus. This organ mines them MECHANICALLY from the real runtime tree: 1 SCAN real .nx files for LEAF-PURE functions (all-i64 params, i64 return, no calls, no loops, no division, no pointers -- the v1 safety envelope, every exclusion COUNTED not silent) 2 MUTATE one operator swap per instance (data-driven op table: +/-, -/+, </>, >/<, */+) 3 VERIFY a generated PROBE compiles orig (renamed) + mutant side by side and sweeps the domain; the ORIGINAL IS THE ORACLE -- divergent cases are real failing tests, agreement cases are pass-to-pass regression teeth (the SWE-bench F2P+P2P contract, mechanically minted). No divergence proof => instance DISCARDED (absence of proof is not equivalence). 4 EMIT a self-contained candidate (mutant under its REAL name + FNRES/FNCASE grader main) that is byte-compatible with nx_autofix_auto's episode loop, a manifest row (name|path), and a (buggy TAB fixed) corpus row for retrieval few-shots (single-line fns). verbs: mine [maxn] [dir] (defaults 16, runtime) | selftest bf_manifest.txt / bf_fixcorpus.txt are DERIVED artifacts regenerated per run (documented REPLACE). license_tier: ORIGINAL No hw writes (Rule 26).