Glossary
Failure-case coverage
Deliberately including the hard cases: transit, occlusion, low light, recovery.
Definition
Failure-case coverage is the deliberate inclusion of the hard parts of a task — transit between locations, occlusion during grasp, low light, dropped objects and recovery — rather than only clean successful attempts. It is what makes a dataset teach robustness instead of a best-case demo.
01
Why it matters
Policies fail in exactly the situations that highlight reels cut. If the training data only shows clean grasps, the model never learns to recover, and it breaks the first time reality is messy.
02
How Firsthand handles it
Firsthand ships the transitions and hard cases uncut — walking between rooms, exposure hunting in dim light — because that is what a head camera actually returns.
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