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Motoko actor state migrations v1.0.0

Use this resource to evolve a Motoko actor's state shape during a canister upgrade

New

  • 406 downloads
  • 128 likes
  • 133 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install motoko-actor-state-migrations

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent writes the migration needed when a state change requires one, implicit or explicit, in the migrations/ folder. It applies the skill's rule: no classical persistence and no preupgrade or postupgrade functions.

Mostly picked by

Updated November 2, 2026

Card for the “Motoko actor state migrations” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
Apache-2.0

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What you get

  • SKILL.md: folder rules, migration types and the definition of stable compatibility
  • examples.md: examples of implicit and explicit migrations

Good fit for

  • You add or rename a field in the state of a deployed canister
  • You must upgrade a canister without losing data

Not for

    Tags

    • migration
    • motoko
    • state
    • canister

    About

    You say

    “I added an email field to accounts. Write the migration so existing data stays intact.”

    Card for the “Motoko actor state migrations” skill

    Skill published by caffeinelabs under the Apache-2.0 license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to evolve a Motoko actor's state shape during a canister upgrade
    3. Review and adjust the result

    Content preview

    Files

    • examples.md3.6 KB
    • LICENSE10.7 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md16.9 KB

    Origin and licence

    Listed unmodified

    Author
    caffeinelabs
    Source
    github.com/caffeinelabs/skills/tree/d03174cc42ab2833293ba1cb313b7593a611a73f/skills/migrating-motoko-actors
    Licence
    Apache-2.0

    Notice

    « migrating-motoko-actors » (caffeinelabs, Apache-2.0) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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