orm-preflight

Name: orm-preflight
Author: sikandar100

by sikandar100version 1.2.0i★ –iRuns on your computer

Registry nameio.github.sikandar100/orm-preflight

Install

Overview

Description from the maker (original English)

Checks TypeORM migrations for data loss, table locks, and deploy problems before they run.

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User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Developer tools

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "orm-preflight": {
      "command": "npx",
      "args": [
        "-y",
        "orm-preflight",
        "mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add orm-preflight -- npx -y orm-preflight mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "orm-preflight": {
      "command": "npx",
      "args": [
        "-y",
        "orm-preflight",
        "mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "orm-preflight": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "orm-preflight",
        "mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

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These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account sikandar100, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
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Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Developer toolsi

More stars than 0% of the other 1387 servers in this category
Published to the registry more recently than 68% of the other 1387 servers in this category
Basic checks equal to or better than 100% of the other 1387 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is orm-preflight safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.2.0) reached the registry 22 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: GitHub, Desktop Commander, Cloudflare MCP

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

orm-preflight

Preflight safety checks for TypeORM migrations: catch data loss and locking before you merge.

Documentation: https://sikandar100.github.io/orm-preflight/

Changing a column's length in TypeORM can delete all of its data. When a column's type or length changes, TypeORM's migration generator drops the column and adds it again (typeorm/typeorm#3357). The migration looks harmless in review and passes every test on an empty database. orm-preflight catches that, and other migrations that lose data, lock busy tables, or break a rolling deploy, before you merge.

src/migrations/1727100000000-WidenUserName.ts

7:30 error no-drop-and-recreate-column "users"."name" is dropped and re-added in the same migration. Every existing value in this column will be lost. Why: TypeORM drops and re-adds a column when its type or length changes, instead of changing it in place. The new column starts empty. Safe: Change the type in place: ALTER TABLE "users" ALTER COLUMN "name" TYPE varchar(255). Widening a varchar, or changing varchar to text, does not rewrite the table. ... Docs: https://github.com/sikandar100/orm-preflight/blob/main/docs/rules/no-drop-and-recreate-column.md

8:30 error no-add-not-null-without-default "users"."name" is added as NOT NULL without a default. The migration fails as soon as "users" has any rows. ...

2 errors, 0 warnings in 1 migration

Install and run

npm install --save-dev orm-preflight

npx orm-preflight "src/migrations/*.ts"

Node.js 20 or newer. Without arguments, orm-preflight checks the migrations globs from its config, or every migrations folder in the project.

To start on an existing project without fixing its history, run npx orm-preflight init first (see Adopting on an existing project).

What it catches

Rule	Reports
Data loss
`no-drop-and-recreate-column`	A column dropped and added again in one migration
`possible-rename-data-loss`	One column dropped and another added, with no data copied (warning)
`no-drop-column`	A dropped column
`no-drop-table`	A dropped table
`no-truncate`	`TRUNCATE` or `clearTable()`
`no-truncating-type-change`	A type change whose `USING` keeps only part of each value, such as `left()` (warning)
`no-delete-rows`	A `DELETE` on an existing table (warning)
`no-null-out-column`	An `UPDATE` that only clears columns, setting them to `NULL` (warning)
`rewrites-existing-rows`	Every `UPDATE`, upsert, or `INSERT ... SELECT` on an existing table, for review (info)
`typeorm/no-changecolumn-recreate`	`changeColumn()` that drops and re-adds the column
Deploy safety
`no-rename-column`	A renamed column
`no-rename-table`	A renamed table
Locking (PostgreSQL)
`require-concurrent-index`	`CREATE INDEX` without `CONCURRENTLY`
`concurrent-index-transaction`	`CONCURRENTLY` where it runs inside a transaction
`no-add-not-null-without-default`	A `NOT NULL` column added without a default
`no-volatile-default`	A column added with a volatile default, or as serial, identity, or generated
`no-unsafe-column-type-change`	A column type change that rewrites the table
`require-not-valid-foreign-key`	A foreign key added without `NOT VALID`
`no-set-not-null`	`SET NOT NULL` on an existing column
`require-not-valid-check`	A CHECK constraint added without `NOT VALID`
`validate-in-same-transaction`	`VALIDATE CONSTRAINT` in the same transaction as its `NOT VALID` add, where it gains nothing (warning)
`require-concurrent-unique`	A unique constraint or primary key added in place
`require-concurrent-index-drop`	`DROP INDEX` without `CONCURRENTLY` (warning)
`no-blocking-maintenance`	`VACUUM FULL`, `CLUSTER`, or `REINDEX` without `CONCURRENTLY`
`enum-value-used-in-same-transaction`	A new enum value used before the transaction that adds it commits
`require-lock-timeout`	A change to an existing table without `lock_timeout` (off, opt-in)
`typeorm/no-enum-recreate`	TypeORM 0.3's enum change by recreating the type (warning)
Correctness
`typeorm/transaction-override-forbidden`	`transaction` set on a migration in transaction mode `"all"`
`typeorm/invalid-migration-name`	A migration name without a 13-digit timestamp
`unanalyzable-statement`	A statement orm-preflight could not read (warning)

| [invalid-suppression](https://github.com/sikandar100/orm-preflight/blob/main/docs/rules

Only the beginning is shown; read the rest in the repo

orm-preflight

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Developer toolsi

Common questions

Alternatives

GitHub

Desktop Commander

Cloudflare MCP

README from the maker

orm-preflight

Install and run

What it catches