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Convex Migrate · get-convex/agent-skills · Skills Docs

get-convex
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get-convex/agent-skills

Issue No. 46 · Convex Migrate

↖Back to the cover

Convex Add
Convex Advisor
Convex Agent
Convex Auth
Convex Authz
Convex Backup
Convex Billing
Convex Cost
Convex Create Component
Convex Crons
Convex Deploy Guard

33 chapters · 70 min

22 / 33Convex Migrate

Skills

Chapter 22 of 33

Convex Migrate

Migrate schema + backfill data on a deployed Convex app using @convex-dev/migrations.

1 minute · 135 words · 3 sections

Migrate the schema / data on a live app

Change a deployed schema without breaking existing data: stage the schema change, install @convex-dev/migrations, write a backfill that makes old rows valid, run it, and verify before tightening the validator.

Workflow

On this page

Migrate the schema / data on a live app
Workflow
Rules

This chapter

Position: 22 of 33
Reading time: 1 min
Words: 135

Source

View SKILL.md(opens in a new tab)

Convex Design

14Convex Domains

16Convex Expert

17Convex Explain App

18Convex Improve Convex Plugin

19Convex Insights

20Convex Launch Readiness

21Convex Migrate Rehearse

22Convex Migrate

23Convex Monitor

24Convex Optimize

25Convex Quickstart

26Convex Reviewer

28Convex Self Heal

29Convex Sentinel

30Convex Suggest

32Convex Verify

Make the new field optional first (so deploy doesn’t reject existing rows).
Install @convex-dev/migrations; write a migration that backfills/transforms existing rows.
Run the migration; verify all rows are valid.
Tighten the validator (make the field required) once the backfill is complete.

Rules

Never tighten a validator before the backfill completes — it rejects existing rows and breaks the live app.
Add new fields as optional first, migrate, then require.
Verify row counts before and after.

Install this repository

$ npx skills add get-convex/agent-skills

Skills install per repository, not per chapter — the CLI has no documented per-skill form, so we do not print one.

Typesetting note

Shifted “3 headings” from h1 to h2 so the chapter title is the only h1.

Agent Skills specification

Chapter 21Convex Migrate Rehearse Chapter 23Convex Monitor

Colophon for this issue

Colophon

How this issue was made

Source

github.com/get-convex/agent-skills, branch main, last pushed 4 August 2026.

Licence

All rights reserved — view on GitHub — with no detectable licence, this issue links rather than republishes: the chapters are omitted from the agent manifest and from the whole-book markdown.

Discovery

33 chapters found by walking the repository tree for SKILL.md, not by matching a directory convention. One layout observed: skills/*/SKILL.md.

Issue colours

Resolved from a deterministic hash of the owner name. Two accent tones are generated per issue and each is proven against its own ground before it ships: a single accent that passes AA on both light and dark paper is arithmetically impossible.

Heading repairs

1 repair applied to this chapter so the document has one h1 and no skipped levels:

Shifted “3 headings” from h1 to h2 so the chapter title is the only h1.

Spec compliance

Every chapter satisfies the Agent Skills specification’s frontmatter rules.

Images

Images inside a chapter come from the upstream repository. Where the author gave no alternative text we mark the image decorative rather than inventing a description — a plausible caption we made up is worse than none for the reader who depends on it.

Signal

Install counts come from skills.sh. They measure downloads, not quality, and an unranked repository is not an unread one.

Agent surfaces

The whole issue is available as one markdown document at /get-convex/agent-skills.md, and each chapter at its own .md URL.

Publication

Set by Skills Docs from the source repository. Body text is Literata at the reader’s chosen size and measure; code is Geist Mono. Nothing on this page was written by us except this paragraph.

get-convex/agent-skills

(opens in a new tab)

Markdown for agents