piker/ai/prompt-io/opencode/20260728T005034Z_ed85721c_prompt_io.md

Prompt

Add reusable read-only tooling to qualify raw NativeDB Parquet against a known gappy IB chart, beginning with mnq.cme.20260918. Preserve malformed evidence and distinguish structural validity from unclassified positive gaps without opening or mutating the storage runtime.

Response summary

Implemented raw Parquet audit reporting with human and JSON output, bounded cadence details, exact integer arithmetic, strict status, collision-safe snapshot capture, and source path protections. Regressions cover malformed schema and values, timestamp precision, gap arithmetic, corrupt bytes, copy failures, symlinks, traversal, and read-only CLI behavior.

Files changed

• piker/storage/_audit.py - raw Parquet audit and snapshot implementation
• piker/storage/cli.py - piker store audit command
• tests/test_storage_audit.py - audit and CLI regressions
• ai/prompt-io/opencode/20260728T005034Z_ed85721c_prompt_io.raw.md
  • unedited response record
• ai/prompt-io/opencode/20260728T005034Z_ed85721c_prompt_io.md
  • provenance metadata and response summary

Human edits

None - generated changes have not been edited by the human.