Individual skill

planetscale

Use when operating PlanetScale (Vitess serverless MySQL) — branches and the `pscale` CLI, schema changes through deploy requests (Online DDL cutover, ~30-min revert window), tables without foreign keys, or the edge HTTP driver. NOT MySQL engine work like EXPLAIN or index choice (that is `mysql`), NOT generic migration theory (that is `db-migrations`).

skills/planetscale/SKILL.md

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Last checked: Nov 10, 2026

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Repository stars (not skill ratings): 578
Repository last updated: Nov 9, 2026
License: MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

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planetscale Declared skill tag
vitess Declared skill tag
mysql Declared skill tag
deploy-requests Declared skill tag
serverless-db Declared skill tag
engineering Derived category
data Derived category
data-databases Derived category

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SKILL.mdcore · 11,302 bytes
SKILL.mdcore · 11,302 bytes
evals/README.mddoc · 912 bytes
evals/cases.yamlasset · 4,070 bytes
references/deploy-requests.mddoc · 3,986 bytes
references/no-foreign-keys.mddoc · 3,851 bytes
scripts/verify.shruns · 4,914 bytes

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# PlanetScale — Vitess serverless MySQL: branches, deploy requests, no FKs

PlanetScale is serverless, MySQL-compatible database-as-a-service built on **Vitess** — the same
horizontal-scaling layer that runs YouTube. You do not `ALTER TABLE` against production. Schema
changes live on an isolated **branch** (a full copy of the schema), reach production through a
**deploy request** (a pull request for your schema), and apply via **Online DDL**: Vitess builds a
shadow table holding the new schema, replicates rows and in-flight writes old→new with VReplication,
then **cuts over** with no table lock. Because Online DDL and sharding are the platform's center of
gravity, you **design without foreign keys** (FKs are now an opt-in but unsharded-only feature). This
skill owns that workflow — not MySQL the engine.

Heuristic for the boundary: **would this answer be identical on RDS MySQL? Then it is not this skill.**

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