Bite-sized TDD plan implementing the design at
docs/superpowers/specs/2026-05-09-battery-gpu-aware-thread-tuning-design.md.
8 phases, ~13 commits:
- Phase 1: power.rs (PowerState enum, sysfs parser, probe + overrides,
10s TTL cache)
- Phase 2: tuning.rs (Workload enum, helper, battery clamp, GPU clamp,
per-process logging)
- Phase 3: vulkan_loader_available moves from src-tauri to magnotia-core
- Phase 4: whisper backend wires through new helper
- Phase 5: LLM call site wires through new helper after model load
- Phase 6: remove old constants::inference_thread_count facade
- Phase 7: thread_sweep.rs prints 4-panel power-aware RTF table
- Phase 8: manual battery validation smoke
Each task is TDD: write failing test, run, implement, run, commit.
Tests live in unit-test modules inside power.rs and tuning.rs.
Override design uses an in-process with_override(state, |closure|)
helper for unit tests (cargo runs them in parallel; env-var path
would race) and MAGNOTIA_POWER_STATE_OVERRIDE env var for
integration tests like thread_sweep.rs.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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