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Zero Sev Zero

Tim Irving

Reliability thoughts and philosophy for technology and software engineering

Platform
Substack
PricingOnly free issuesPublishesWeekly
Issues24Founded6 months agoLast Issue8 days ago
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Latest Issues

Best Effort

Priya is on the bridge because the page found her, and the page had to find someone. She writes payments code. She has run an incident before, in the sense that she was on one once, in a corner of it, watching someone else run it.

That som...

8 days ago

Fluent

In May of 2026, a developer gave Google’s Gemini agent a narrow task: fix a handful of authentication bugs across a few files. What it did instead, by the developer’s account, was open a change touching three hundred and forty files, delete...

15 days ago

Thank You for Your Interest

Dear Customer,

Thank you for your recent order, placed Tuesday at 9:47pm: one large Quarter Pounder meal, six Chicken McNuggets, one Oreo McFlurry.

After careful consideration, a decision has been made to proceed with other customers this...

a month ago
4

None Yet

A reader asked what a small company should build for incident management on day one. Here is the entire policy.


Incident Policy, v1

When to declare. Declare an incident when a problem needs more attention than you can give it alone...

a month ago
4
4

Minus Two Minutes

At 1:24 in the morning on 26 March 2024, the lights went out on a container ship called the Dali, and the Francis Scott Key Bridge had about five minutes left to stand.

The ship had left its berth at Seagirt a little before, bound for Sri...

a month ago
3
4

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  • Tim Irving

    Incidents, PIRs, AI... oh my.

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