schema-diff
Compare two schema states and surface the risky changes. Use before applying migrations or after a model change.
Source facts
- Repository
- Archive228/loopkit
- Last source activity
- June 29, 2026 at 21:52
- Detected SKILL.md language
- English
- Stars
- 757
- Forks
- 124
Install options
The review-first prompt is selected by default. You can switch to a direct command or download a local copy.
Review the source files
Read SKILL.md and any companion files shown by SkillsMP before deciding whether to install.
Showing SKILL.md
SKILL.md
Source instructions · Read-only preview- name
- schema-diff
- description
- Compare two schema states and surface the risky changes. Use before applying migrations or after a model change.
- when_to_use
- reviewing a migration, "what changed in the schema", pre-deploy check
# Schema Diff
Diff old vs new schema. Flag by risk:
- **Destructive** (high): dropped column/table, narrowed type, new NOT NULL on existing rows, dropped index a query relies on.
- **Locking** (high at scale): index without CONCURRENTLY, type change that rewrites the table.
- **Safe**: new nullable column, new table, new index CONCURRENTLY.
For each destructive change: is data lost? is it reversible? is there a backfill? Output a risk-ranked list and a go/no-go with the safe rollout order.
View on GitHub