migrate

A command for creating, checking, and applying database migrations with Drizzle, a TypeScript database toolkit. A migration is a recorded change to tables, columns, indexes, or relationships.

In plain words
What is it for?
Use it to generate a migration from a schema change, review its effects, and apply safe migrations to a local development database.
Why use it?
It highlights changes that could lose data or lock large tables before they are applied. It also keeps migration files tied to the database schema instead of editing SQL by hand.

Command

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/radimsem/remindb/migrate
Clone the repo
git clone --depth 1 https://github.com/radimsem/remindb
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 286 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00012 $0.00286
Opus 5 $0.00006 $0.00143
Sonnet 5 $0.00002 $0.00057
Haiku 4.5 $0.00001 $0.00029

Measured yesterday against content hash 71e974421404, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

migrate scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

testdata/claude-code/commands/migrate.md · 25 lines

What it actually says

Generate a new drizzle migration for: $ARGUMENTS

Steps

  1. Run pnpm drizzle-kit generate to produce the migration SQL from the current schema diff.
  2. Read the newly created file under drizzle/migrations/. Summarize:
    • Tables created / dropped / altered
    • Columns added with NOT NULL constraints (these need backfill or a default)
    • Indexes added (are any on large tables? if so, use CONCURRENTLY)
    • Foreign key changes (potential lock escalation)
  3. If the diff contains any risky operation (DROP COLUMN, DROP TABLE, ADD NOT NULL without default, ALTER COLUMN TYPE on a large table), stop and ask before proceeding.
  4. Otherwise, run pnpm drizzle-kit migrate against the local dev database.
  5. Verify the __drizzle_migrations table shows the new migration with a fresh created_at.

Do not

  • Edit migration files by hand. If the generated SQL is wrong, fix the schema in drizzle/schema.ts and regenerate.
  • Run against production — this command is dev-only. Production migrations go through the GitHub Actions deploy workflow.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 25 lines · 12 tokens per session scan A 71e974421404

Subscribe to this mod's changes

migrate is a command published in the GitHub repository radimsem/remindb (125 stars, last pushed 28d ago), licensed MIT. It adds 12 tokens to every session and 286 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.