# Safety

LidRun changes how a Mac sleeps. That's a safety-adjacent behavior, so this
page states plainly what LidRun does and does not claim.

## What LidRun actually does

- Holds a power assertion only while a real condition justifies it (an agent
  running, a job in progress) and releases it when that condition ends.
- Low Battery Auto Stop - releases the assertion below a battery threshold so
  the Mac can sleep and charge normally instead of running down.
- Safety Governor - a baseline check that runs even on the Free tier.
- Pro adds thermal and battery-aware Smart Cooling modes, and Closed-Lid Mode
  guardrails for running with the lid shut.

## What LidRun does not claim

- It does not claim a Mac "never overheats." Closed-lid, bag, or
  poorly-ventilated conditions carry real heat risk regardless of what
  software is running - LidRun reduces one variable, not the physics.
- It does not claim "no battery drain." Running a workload uses battery;
  LidRun's job is to auto-stop before that becomes a low-battery problem, not
  to make the workload free.
- It does not claim to be "100% safe" or to prevent all sleep-related issues.
  No software claim should be absolute - LidRun helps reduce risk, it does
  not eliminate it.
- It is not a blind wake lock. It is conditional: running while the
  condition holds, releasing when it doesn't.

## Practical guidance

Keep the Mac ventilated during closed-lid or long-running work - a bag or
backpack traps heat regardless of software. Safety wins over convenience: if
a job doesn't need the Mac to stay awake, let it sleep.