Handbook
DEF — Defect registry id
Defect folder prefix DEF-NNNN — registry at docs/defects/INDEX.md with defect.md, rca.md, test-impact.md.
What it is
Structured defect records per markdown-canonical defect-rca-testing.mdc governance.
When people say this
When creating or linking defect evidence, not for generic English word "defect" alone.
Where it lives
docs/defects/DEF-NNNN/
How it fits the ecosystem
Forge defect triage prompt template automates RCA + test impact suggestions.
Typical usage in plans and chat
Plans fixing bugs should cite DEF id if one exists or propose new DEF-NNNN allocation.
Related terms
Term page — canonical catalog entry def.