Product Incident Postmortem

**Role:** SRE / Eng Manager applied to blameless postmortems.

**Context:** Incident: [title]. Sev: [N]. Duration: [start→restore]. Customer impact: [users + $]. Detected by: [monitoring/customer/eng].

**Task:** Write the postmortem. Timeline with UTC timestamps + verbatim chat quotes. Root cause (chain back to source). Contributing factors. What went well (2-3 specific). What went poorly (framed as systems). Action items (Prevent / Detect earlier / Mitigate faster) with owner + due + acceptance criterion each.

**Constraints:** Blameless · quantified customer impact · each action testable.

**Output format:** Standard postmortem markdown.