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automaton/tasks/state-file-enforcement/IMPLEMENTATION.md
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v2.0: state enforcement, project scoping, harness integration
State Enforcement (v2.0):
- .state file as single source of truth for task phase
- Approval gates for research, decomposition, design, test_design
- status.py --transition refuses illegal phase transitions
- status.py --validate-folder detects out-of-order artifacts
- status.py --audit checks all tasks for violations
- status.py --create-task is the only valid way to create tasks
- Pre-v2.0 tasks without .state are UNTRACKED -- all commands refuse them
- New --upgrade command bootstraps .state files for existing tasks

Project Scoping:
- --project flag added to all status.py commands across 16+ files
- _find_project_dir errors instead of silently falling back to ~/.automaton/
- --scope-check marks framework files OUT_OF_SCOPE when working on a project
- Dashboard handlers use stored project_root instead of re-detecting from CWD
- Prompts reference ~/.automaton/scripts/vram_detect.py (not {project}/.automaton/)

Harness Integration:
- status.py --can-edit now supports project-level checks (no --task required)
- --can-edit --file checks file scope without --task
- --json output for machine-readable harness integration
- opencode plugin (plugins/automaton-guard/plugin.ts) intercepts edit/write
- Git pre-commit hook (scripts/git-hooks/pre-commit) blocks commits without task
- Formal integration contract (contracts/harness-integration.md)

Other:
- upgrade.sh delegates to status.py --upgrade instead of manual heuristics
- Phase prompts reference --project {project} for multi-project scoping
- 200 tests passing (14 new)
2026-06-15 14:16:46 -04:00

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# Implementation: State File Enforcement
## Changes Made
### 1. `.state` file format (implemented in `scripts/status.py`)
- `.state` file contains a single phase name (e.g., `research`, `research:awaiting_approval`, `implement`)
- Written atomically via `.state.tmp` → `.state` rename
- `.state.approvals` append-only log records all approvals with timestamp and approver
- `.state.lock` for multi-agent claiming (optional, only in multi-agent mode)
- Non-artifact metadata files (`.state`, `.state.approvals`, `.state.lock`, `.state.tmp`, `VRAM_CONFIG.md`, `PARENT_SPEC.md`, `REVIEW.md`) are excluded from artifact checks
### 2. State transitions with approval sub-states
- Approval-gated phases: research, decomposition, design, test_design now have `:awaiting_approval` → `:approved` sub-states
- Non-approval phases: implement, bug_find, adversarial_bug_find, doc_review, referee have no sub-states
- `status.py --transition` refuses transitions past `:awaiting_approval` without `--approve`
- `status.py --approve` transitions `:awaiting_approval` → `:approved` and records approval in `.state.approvals`
### 3. Backward compatibility
- If `.state` doesn't exist, `status.py` infers phase from artifacts and writes `.state`
- `upgrade.sh` bootstraps `.state` for all existing tasks
- Phase prompts work with or without `.state` (warns if missing)
### 4. Forbidden artifacts per phase (implemented in `status.py --validate-folder`)
- Each phase has a defined set of artifacts that must NOT exist (artifacts from future phases)
- `--validate-folder` checks and reports violations
- `--transition` refuses to proceed if forbidden artifacts exist
### 5. Task creation gate (implemented in `status.py --create-task`)
- `--create-task` creates task folder with `.state` = `new` and empty `.state.approvals`
- Validates kebab-case task names
- Refuses if task already exists
- `--audit` Category 4 flags manually created task folders
### 6. Orchestrator and workflow updates
- `prompts/workflow.md` rewritten: `.state` is canonical, approval sub-states documented, `status.py` commands referenced
- `prompts/orchestrate.md` reduced from 493 to 143 lines, references `workflow.md` and `subtask_management.md`
- All phase prompts include `.state` precondition check
## Files Modified
- `scripts/status.py` (new, 980 lines)
- `prompts/workflow.md` (rewritten)
- `prompts/orchestrate.md` (rewritten, 143 lines)
- `prompts/subtask_management.md` (new, extracted from orchestrate.md)
- `tests/test_status.py` (new, 25 tests)
- `scripts/upgrade.sh` (new)
## Test Results
- 183 tests passing (including 25 new status.py tests)
- Python compilation clean
- Shell script syntax clean