Most AI incidents are documented too late and too vaguely.
The team remembers the frustration, but not the evidence.
So a week later the postmortem sounds like this:
- "The model got weird."
- "Retrieval seemed off."
- "Tool calling was flaky."
- "We think the prompt change may have caused it."
That kind of report is not useful.
If you want incidents to improve the system instead of just creating a document, the write-up has to force clarity.
This is the lightweight template I actually like for production AI incidents.
What makes AI incidents annoying
AI incidents usually cross more than one layer:
- model behavior
- prompt or policy changes
- retrieval quality
- tool execution
- downstream parsing
- logging gaps
That is why generic incident templates often fail here. They capture "what happened" but not the behavioral context needed to debug probabilistic systems.
You do not need a giant framework. You do need a report that makes the team answer the right questions.
The template
This is the copy-paste version.
# AI Incident Report
## 1. Incident Summary
- Incident ID:
- Date / time:
- Owner:
- Status:
- User-visible impact:
## 2. What failed?
- [ ] wrong answer
- [ ] hallucinated citation / unsupported claim
- [ ] tool-call failure
- [ ] structured output parse failure
- [ ] latency spike
- [ ] cost spike
- [ ] policy / refusal regression
- [ ] other:
## 3. Scope
- Affected feature:
- Affected tenants / cohorts:
- Approx request volume:
- First detected:
- Detection method:
## 4. Request-Level Evidence
- request_id examples:
- model_version:
- prompt_version:
- retrieval_version:
- index_version:
- tool_schema_version:
- policy_version:
## 5. Failure Classification
- Suspected primary layer:
- Suspected secondary layer:
- What evidence supports this?
- What evidence contradicts this?
## 6. Timeline
- Change deployed:
- First bad signal:
- Escalation:
- Mitigation:
- Recovery confirmed:
## 7. Root Cause
- Direct cause:
- Contributing factors:
- Why existing checks did not catch it:
## 8. Fix
- Immediate mitigation:
- Permanent fix:
- Owner:
- Due date:
## 9. Guardrail to Add
- [ ] eval case
- [ ] alert
- [ ] dashboard / query
- [ ] release gate
- [ ] logging field
- [ ] rollback rule
## 10. Proof of Recovery
- Before / after metric:
- Sample requests reviewed:
- Residual risk:
That is already enough for many teams.
The 4 sections that matter most
Not every incident doc gets read in full. These four parts do most of the real work.
1. Request-level evidence
This is the difference between diagnosis and storytelling.
If the incident doc does not include actual request examples plus the relevant version fields, the team is operating from memory.
At minimum, I want:
- a few request IDs
- the active model version
- the prompt version
- the retrieval or index version if RAG is involved
- the tool schema version if tools are involved
Without this, the root-cause section is usually weaker than people think.
2. Failure classification
Teams move faster when they force themselves to name the failing layer.
For example:
- retrieval miss
- ranking issue
- context assembly issue
- tool selection issue
- tool execution issue
- validation issue
If the incident report only says "bad answer," it is too abstract to improve operations.
3. Why checks did not catch it
This is my favorite line in the template.
It reveals whether the real problem was:
- no eval coverage
- no alert
- no rollback trigger
- weak traces
- unclear ownership
That is often more valuable than the immediate bug itself.
4. Guardrail to add
Every recurring AI incident means one of the system's feedback loops is missing.
A good incident report should end by adding at least one control:
- a new eval case
- a version field in logs
- a release gate
- an alert tied to action
- a rollback condition
If the report produces no new guardrail, the same class of incident usually comes back.
An example of a weak root cause
Weak:
"The model produced inconsistent outputs."
That sentence explains almost nothing.
Stronger:
"A prompt edit increased tool invocation frequency, but the new tool schema required a field the model was not reliably generating. Parse failures rose immediately after deployment, and no alert existed for that failure mode."
Now the team has something operational:
- the trigger
- the failing layer
- the missing guardrail
Keep the report small
AI teams sometimes overreact to messy incidents by creating giant forms nobody wants to complete.
I would not start there.
The goal is:
- short enough to be filled in during a real week
- structured enough to support debugging
- consistent enough to compare incidents over time
If the template is too heavy, people stop using it.
If it is too loose, the reports become fiction.
Closing
A useful AI incident report should help you answer three things quickly:
- What failed?
- Which layer most likely failed?
- What control do we add so this exact failure is easier to catch next time?
That is enough to turn incidents into system improvement instead of another vague postmortem folder.
If you want deeper material on production AI diagnostics and observability, these are a good next step:
For AI systems, the quality of the incident report often determines whether the team learns anything real.
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