---
model: gpt-5.6-sol
service: opencode
session: tractor-addr-unpacking
timestamp: 2026-08-21T05:20:52Z
git_ref: 3690e43a
scope: config
substantive: true
raw_file: 20260821T052052Z_3690e43a_prompt_io.raw.md
---

## Prompt

The human asked for a main-first patch using an off-the-shelf pytest
plugin to cope with tractor's changing macOS CI flakes without mixing
that mitigation into PR #505.

## Response summary

Added `pytest-rerunfailures` to tractor's testing dependencies and
configured the GitHub Actions matrix to retry failures only on macOS.
Linux and Windows remain strict first-attempt runs, while persistent
macOS failures still fail after two visible reruns.

## Files changed

- `.github/workflows/ci.yml` - macOS-only pytest rerun budget.
- `pyproject.toml` - testing plugin dependency and rationale.
- `uv.lock` - resolved `pytest-rerunfailures` package metadata.

## Human edits

The human selected a main-first mitigation after PR #505 failed two
different macOS tests on consecutive runs and required the change to
remain an incremental patch with its own commit plan. The agent
implemented and verified that direction; no direct manual source
edits were observed.