Safety

Blameless After-Action Review

Blameless After-Action Review

After rollback restores service, the team learns what broke in the system - not who to punish for pushing deploy.

Change Window

Change Window

Risky changes ship when someone awake can roll back, not Friday night when everyone is offline.

Staged Rollout

Staged Rollout

Ship to a small slice first so rollback stays cheap if the new state bleeds.

Rollback Principle

Rollback Principle

Restore the last good state before you push - when the new state breaks, revert first, debug second.

Safety Comes First

Safety Comes First

Stop the unsafe thing first, then restore choice when the situation is stable.

Coaching Ethics

Coaching Ethics

Develop the person without hiding behind consent when the drill is unsafe or pointless.

Develop, Don't Endanger

Develop, Don't Endanger

People grow through drills that build skill without pain or risk replacing the actual skill.

Duty of Care

Duty of Care

If roles flipped, reasonable protection from harm is the bar owed to people under you.

Eliminate Before Managing

Eliminate Before Managing

Remove unnecessary danger first instead of stacking procedures and gear on top of it.

Heed Every Near-Miss

Heed Every Near-Miss

A close call means the system nearly failed, not that we got proof the activity was safe because nobody died.

Hierarchy of Controls

Hierarchy of Controls

Remove the hazard first, then substitute, engineer, admin, PPE - in that order.

Incident Investigation

Incident Investigation

Find system causes after a miss - not only who to blame.

Life Before Achievement

Life Before Achievement

Human life is non-negotiable - even when the goal is a championship or a reputation for toughness.

Normalization of Deviance

Normalization of Deviance

Repeated close calls slowly redefine 'normal' until disaster feels surprising but was predictable.

Psychological Safety

Psychological Safety

People can name mistakes and near-misses without fear of humiliation or retaliation.

Reversibility

Reversibility

Prefer choices you can undo - irreversible harm needs a higher bar.

Risk Management

Risk Management

Name what can go wrong, how likely, how bad - then choose controls in order of strength.

Safety by Design

Safety by Design

Build workflows so the dangerous move is hard - not just a warning label and good intentions.

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