# Tier 2 Autonomous Sandbox

## Why this exists

When you run Tier 2 in the main repo, every `edit` and every `bash`
call prompts you for approval (`permission: ask`). For well-regularized
tracks (TDD red/green with atomic per-task commits), this is noise.
This track adds an **autonomous mode** in a sibling clone where Tier 2
runs unattended, with a 3-layer enforcement stack to keep it contained.

## One-time bootstrap

```powershell
cd C:\projects\manual_slop
pwsh -File scripts\tier2\setup_tier2_clone.ps1 -WhatIf   # dry run first
pwsh -File scripts\tier2\setup_tier2_clone.ps1            # actual bootstrap
```

The bootstrap:
1. Clones the main repo to `C:\projects\manual_slop_tier2\`
2. Sets `origin = C:\projects\manual_slop` (local path; no remote)
3. Copies the agent, slash command, and opencode.json templates to the clone
4. Installs the git hooks (`pre-push` refuses all pushes; `post-checkout` logs checkouts)
5. Creates a "Tier 2 (Sandboxed)" desktop shortcut

**As of 2026-06-18:** the bootstrap no longer creates any directory on AppData. Tier 2 state and failure reports live at `tests/artifacts/tier2_state/<track>/state.json` and `tests/artifacts/tier2_failures/<track>_<ts>.md` (project-relative; inside the project tree under the already-gitignored `tests/artifacts/`). The user directive is "NEVER USE APPDATA" — enforced by the OpenCode `*AppData\\*` bash deny rule.

## Per-track invocation

1. Double-click the "Tier 2 (Sandboxed)" desktop shortcut
   (or run `pwsh -File C:\projects\manual_slop\scripts\tier2\run_tier2_sandboxed.ps1` manually)
2. In the OpenCode session, type:
   ```
   /tier-2-auto-execute <track-name>
   ```
   Examples:
   - `/tier-2-auto-execute result_migration_review_pass`
   - `/tier-2-auto-execute data_structure_strengthening_20260606 --resume`
   - `/tier-2-auto-execute rag_test_failures_20260615 --toast`
3. Tier 2 runs the track autonomously, commits per task, monitors failcount
4. On success: prints a summary
5. On give-up: writes a failure report and prints the path

## Review and merge

After Tier 2 finishes (success or give-up):
1. `cd C:\projects\manual_slop` (back to main)
2. `git fetch C:/projects/manual_slop_tier2 tier2/<track-name>`
3. Review the diff with Tier 1 (interactive)
4. On approval: `git merge --no-ff tier2/<track-name>` to main

## The 4 hard bans (enforced at 3 layers)

| Ban | Layer 1 (OpenCode) | Layer 2 (OS) | Layer 3 (git hook) |
|---|---|---|---|
| `git push*` (any push) | `permission.bash` deny rule | n/a | `pre-push` hook refuses all pushes |
| `git checkout*` (any form) | `permission.bash` deny rule | n/a | `post-checkout` hook logs the checkout |
| `git restore*` (any form) | `permission.bash` deny rule | n/a | n/a |
| `git reset*` (any form) | `permission.bash` deny rule | n/a | n/a |
| File access outside Tier 2 clone (AppData, Temp, Documents, etc. all denied) | `permission.read`/`write` path allowlist + `*AppData\\*` bash deny | Windows ACL | n/a |

## The failcount threshold

Tier 2 gives up if ANY of these hit:
- 3 consecutive red-phase failures (the test doesn't fail when it should)
- 3 consecutive green-phase failures (the implementation doesn't make the test pass)
- 30 minutes with no progress (no commit, no green test)

Override via `scripts/tier2/failcount.toml`.

## The failure report

Written to `tests/artifacts/tier2_failures/<track>_<timestamp>.md` (project-relative; inside `tests/artifacts/` which is gitignored) with 7 sections:
1. Header (track, branch, started, stopped, duration, give-up signal)
2. Tasks completed
3. Current task (where it stopped)
4. Last 3 failures
5. Failcount state
6. Git state (`git log tier2/<track> ^origin/master`)
7. Recommendation (heuristic-based)

A `.STOPPED` flag file is created alongside the report. The main repo
can check for it on next Tier 1 session start (an opt-in banner).

## Conventions (added 2026-06-17)

These are enforced by the Tier 2 agent prompt. The agent MUST follow them — they're not optional.

- **Test runner:** Tier 2 always uses `uv run python scripts/run_tests_batched.py`. Never `uv run pytest` directly. The batched runner provides tier-based filtering, parallelization (xdist), and a summary table that direct pytest doesn't.
- **Default branch:** this repo uses `master` (not `main`). When fetching or branching, use `origin/master`. Tier 2 may otherwise get confused by the missing `main` reference.
- **Line endings:** Tier 2 preserves existing line endings on edit. This repo has a mix of CRLF and LF; standardizing to repo-wide LF is a future track. For now, do not normalize.
- **Throw-away scripts:** Tier 2 writes its working scripts to `scripts/tier2/artifacts/<track-name>/`, NOT the base `scripts/tier2/` directory. The base directory is reserved for production code. Throw-away scripts are kept for archival but isolated in a track-specific subdir.
- **End-of-track report:** at the end of every track, Tier 2 writes `docs/reports/TRACK_COMPLETION_<track-name>.md` (follow the precedent set by `TRACK_COMPLETION_tier2_autonomous_sandbox_20260616.md`) and updates `conductor/tracks/<track-name>/state.toml` to `status = "completed"`. The user reads this report to decide merge.
- **Run-time expectation:** tracks are expected to take 1-4 hours. If the model reports it is running out of context, Tier 2 notes progress to disk and continues. The user expects autonomous runs to complete without manual "press continue" intervention.

## Verify the sandbox (manual checklist)

After bootstrap, run these inside the Tier 2 sandboxed OpenCode session
to verify the bans are enforced:

- [ ] Try `git restore tests/test_failcount.py` — should print "denied"
- [ ] Try `git push origin master` — should print "denied" (or the pre-push hook fires)
- [ ] Try `git checkout -- src/foo.py` — should print "denied"
- [ ] Try `git reset --hard HEAD~1` — should print "denied"
- [ ] Try to read `C:\Users\Ed\Documents\test.txt` (from a Python subprocess) — should print "ACCESS_DENIED"

And verify allowed operations work:
- [ ] `git status` — works
- [ ] `git switch -c test-branch` — works
- [ ] Edit a file in the Tier 2 clone — works
- [ ] `git add <file> && git commit -m "test"` — works

## Troubleshooting

- **"Tier 2 (Sandboxed) shortcut doesn't work"**: check that
  `pwsh.exe` is on the PATH (`where.exe pwsh`).
- **"Permission denied" on file access inside the sandbox**: the
  Windows ACL may be too restrictive. Re-run the bootstrap
  (`setup_tier2_clone.ps1` is idempotent).
- **"Failcount state not found"**: the `tests/artifacts/tier2_state/<track>/`
  dir may be missing. The failcount module creates it on first save;
  check that the Tier 2 clone's project root is correct.
- **"Pre-push hook not firing"**: check that `.git/hooks/pre-push`
  is executable. On Windows, Git Bash runs the hook; check
  `git config core.hooksPath` if you have a custom hooks dir.
- **"Tier 2 keeps giving up at 30 min"**: increase
  `no_progress_minutes` in `scripts/tier2/failcount.toml`.
- **"Tier 2 ran out of context"**: the model stopped mid-track. The
  user (interactive Tier 1) should `cd` to the Tier 2 clone, inspect
  `tests/artifacts/tier2_state/<track>/state.json` for the last completed task,
  and re-invoke with `/tier-2-auto-execute <track-name> --resume`
  to continue. The state file persists across runs.