piker/ai/prompt-io/opencode/20260728T003247Z_ed85721c_p...

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---
model: gpt-5.6-sol
provider: openai
service: opencode
timestamp: 2026-07-28T00:32:47Z
git_ref: ed85721c
diff_cmd: git diff HEAD~1..HEAD
---
> `git diff HEAD~1..HEAD -- snippets/nativedb_backfill_audit.xsh docs/manual_backfill_qualification.rst tests/test_backfill_audit_snippet.py .claude/skills/run-tests/test-harness-reference.md`
Added sourceable xonsh helpers that create a private disposable root, bind
child processes to the reviewed worktree, capture checksum-bound phase
evidence, safely seed and clear test history, and compare lifecycle
preservation.
The workflow rejects path traversal, pre-existing symlinks, output
collisions, mismatched case/report/snapshot evidence, and same-phase
comparison. The accompanying runbook covers known-bad replay, fresh
backfill, restart, append, gap triage, and expansion cases.
Verification generated with the patch:
- xonsh qualification helper regressions: passed
- xonsh sourceability: passed
- Ruff: passed
- `git diff --check`: passed
Adversarial review drove additional evidence binding, worktree executable,
environment propagation, source replacement, and descriptor-level safety
fixes. Residual concurrent mutation risk is stated explicitly in the private
disposable-root runbook.