# Reactor Maintenance Rewrite Tasks

## Current State

- Branch: `design-rewrite`
- Scope approved: implement `docs/design.md` end-to-end with deterministic defaults and no backward compatibility.
- Simulation core has been replaced with the first design-native model and deterministic engine slice.
- Simulation and test projects now target `net10.0` because this Linux environment only has the .NET 10 runtime.
- Win2D editor still references the removed legacy model and is the next major implementation area.

## Completed Work

- Read project instructions, Linux instructions, code style, and `docs/design.md`.
- Confirmed deterministic balance defaults should be chosen during implementation.
- Confirmed a full Win2D editor is required.
- Created branch `design-rewrite`.
- Added `TASKS.md` as the required per-commit work tracker.
- Removed the legacy integer hazard/effect/hazard plug-in simulation surface.
- Added design-native terrain, underground carrier layers, surface hazards, props, leaks, doors, reactor bindings, robot inventory, rule events, validation, serialization, and forecasts.
- Added deterministic default balancing values.
- Added a first deterministic simulation pipeline for network propagation, consumers, leaks, surface interactions, robot safety, reactor readiness, rule events, and forecasts.
- Replaced old tests with design-based simulation tests.
- Verified `dotnet test tests/ReactorMaintenance.Simulation.Tests/ReactorMaintenance.Simulation.Tests.csproj` passes: 11 passed.
- Attempted `dotnet jb cleanupcode --build=False ...`; unavailable in this environment because `dotnet-jb` is not installed.
- Reviewed the first slice and fixed an action-resolution maintainability issue before commit.
- Verified `git diff --check` reports no whitespace errors.

## Current Work

- Commit the first simulation-core rewrite slice.

## Future Work

1. Expand simulation fidelity where the first slice is intentionally simplified: junction branch inference, ambiguity validation, complete pair table coverage, richer rule predicates/effects, and stronger forecast proof cases.
2. Update the Win2D editor for all authored layers and new runtime inspection.
3. Add editor workflows for reactor bindings, door edge selection, electricity wall leak faces, rule events, and layer-specific painting.
4. Update README and any affected docs to reflect the new schema, .NET target, editor controls, and deterministic defaults.
5. Build the Win2D project on a Windows-capable environment after the editor rewrite.
6. Add broader tests for junction ratios, ambiguous junctions, all rule event families, serialization edge cases, and editor operations.
7. Run cleanup when `dotnet-jb` is available, tests, code review, and iterate until the implementation is clean and maintainable.