Tools
Free, no sign-up required. Built to make visible the things most organisations leave invisible.
Cost of Downtime
Estimate what an outage actually costs — not just during the outage, but in the months that follow. Revenue recovery, churn, regulatory exposure, and the learning investment that would prevent the next one.
Open calculator →Resilience Self-Assessment
Six questions to surface the organisational patterns that keep incidents recurring — where signals get absorbed, where prevention goes unrewarded, where learning stops before it starts.
Take the assessment →Resilience Companion
An AI facilitator that runs operational readiness reviews and incident analysis conversations most teams can't run on their own — Socratic, a little pushy, anchored in real incidents. Designed to bootstrap learning when nobody in the room has carried the pager.
View on GitHub →Changebook
Every production change, tracked from plan to verification. Like a pilot's checklist for ops. Structured pre-flight, step-by-step execution with hold points, and verification — grounded in cognitive systems engineering. For the changes that can't go through a pipeline but still need discipline.
View on GitHub →