Postmortem Intermediate By Samson Tanimawo, PhD Published Sep 3, 2026 7 min read

A Postmortem Action-Item Tracker That Sticks

Most action items die in a backlog within three weeks. Six fields per item, two SLAs, and a 15-minute weekly review will fix that. Here’s the version that’s survived contact with my last four teams.

Why action items die

The pattern is universal. Postmortem produces seven action items. Three get done in the first two weeks (the easy ones). Two are still open after a quarter (the hard ones). Two are silently dropped because nobody remembered they existed. Six months later, the same incident happens again because of one of the dropped items.

The fix isn’t willpower or process discipline. It’s structure. The reasons items die are predictable: vague ownership, no deadline, no visible status, no review rhythm. Address those four and the completion rate goes from ~50% to ~85% with no extra meetings.

The six fields

Every action item, in your tracker of choice (Linear, Jira, GitHub Issues, a shared sheet, the tool doesn’t matter, the structure does):

  1. Title. One line. Verb-first. “Add per-partition CloudWatch alarm” not “DynamoDB monitoring”.
  2. Source incident. A link to the postmortem, not a paraphrase. Future-you in three months will want to see the original context.
  3. Owner. A specific person, not a team. Teams don’t close action items; people do. The owner can change as people leave; that’s fine.
  4. Class. One of four: prevent (stops the bug from happening again), detect (catches it faster), respond (helps responders), communicate (improves comms). Helps you see the shape of the work later.
  5. Due date. A real date. “Q3” is not a date. “September 15” is.
  6. Verification. How you’ll know it’s actually done. “Alarm fires in next game-day” not “deployed”.

Six fields, two minutes per item to fill out. The verification field is the one that gets skipped most often and matters most. Items without verification get marked “done” long before they’re actually working.

Two SLAs that matter

One SLA per class of severity. We use just two:

The deadlines are visible. Anyone on the team can see the action item list, sorted by days-until-deadline. Public deadlines that anyone can see are different from private deadlines that only the owner remembers; the social pressure does most of the work.

The 15-minute weekly review

Once a week, 15 minutes, same time slot. The team lead or designated owner walks the list. For each open item:

That’s the whole meeting. 4 questions per item, ~10 items typically open at any time, 90 seconds per item. Done in 15 minutes. The point isn’t to micromanage the work; it’s to make the work visible. Items that haven’t moved in three weekly reviews are either dead or need a different owner.

Don’t skip the review when you’re busy. The weeks you skip are the weeks the action items quietly slip. We’ve missed the review three times in two years; each time the next-quarter completion rate dropped 8-12%.

When to kill an action item

Some action items shouldn’t ship. The team learned something during the work, the priority changed, or the action item turned out to be a bad idea on closer inspection. Killing items is fine; pretending they’re still active is not.

The kill criteria, in order of frequency:

The killed-with-reason item is the most useful artefact in the long run. Three years later, when someone proposes the same fix, the kill notes explain why it didn’t happen the first time. Saves them three weeks of work.

The two metrics worth tracking

Two numbers, reported quarterly, on the team’s reliability dashboard:

The metrics aren’t for shaming. They’re for spotting where the postmortem culture is degrading before the next big incident exposes it. A team whose prevent completion rate drops from 70% to 40% over two quarters is a team about to have the same outage twice.

The wiki line, on a sticker we put on people’s laptops: “An action item without an owner, a deadline, and a verification is a wish. Track wishes separately.”