---
model: gpt-5.6-sol
provider: openai
service: opencode
session: 24fb9765-a550-4570-8350-f0fc9b7e17db
timestamp: 2026-07-28T00:32:47Z
git_ref: ed85721c
scope: code
substantive: true
raw_file: 20260728T003247Z_ed85721c_prompt_io.raw.md
---

## Prompt

Build a safe xonsh workflow for qualifying NativeDB and reverse-backfill
correctness against a known gappy IB chart, beginning with
`mnq.cme.20260918`. Cover baseline, fresh, restart, append, and expansion
testing through implementation, adversarial review, and verification.

## Response summary

Implemented a private disposable xonsh qualification workflow. Evidence is
tied to a fixed case, report checksum, snapshot checksum, worktree import,
and phase metadata. Added explicit path and symlink safety, source
replacement handling, xonsh child environments, and lifecycle preservation
comparisons.

## Files changed

- `snippets/nativedb_backfill_audit.xsh` - disposable qualification helpers
- `docs/manual_backfill_qualification.rst` - operator lifecycle runbook
- `tests/test_backfill_audit_snippet.py` - xonsh and comparison regressions
- `.claude/skills/run-tests/test-harness-reference.md`
  - qualification test-harness guidance
- `ai/prompt-io/opencode/20260728T003247Z_ed85721c_prompt_io.raw.md`
  - unedited response record
- `ai/prompt-io/opencode/20260728T003247Z_ed85721c_prompt_io.md`
  - provenance metadata and response summary

## Human edits

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