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/migration

@bad48a0
by Julius Brusseejuliusbrussee/caveman114k stars
6,594
Run it yourself

Implement reversible compatibility-safe transitions. Use for schema, data, API, protocol, configuration, or dependency migrations requiring rollback and preservation proof.

Use this Skill: https://skilld.dev/gh/juliusbrussee/caveman/migration

Nothing lands on disk. Nothing to clean up.

Fork this Skill

Edit a local copy. It keeps the author and licence.

SKILL.md

≈46 tokens for metadata: the name and description. ≈143 when used: this file. ≈51 more on demand in 1 file.

Description uses 2.3% of example budget

Before choosing a Skill, your Agent reads its name and description. All available Skills share that space.

  • A shorter description leaves more room for other Skills. This entry exceeds our 1% size suggestion.

In our Claude Code example, all Skill names and descriptions share 8,000 characters. This Skill uses ≈184 characters, or 2.3%.

The 1% threshold is a size suggestion. Longer descriptions can still fit.

Your model, settings, and other Skills decide how much text your Agent can read.

Example settings and source

The example uses a 200k-token context and default Claude Code settings. The count includes the name, description, separators, and when_to_use when present. Codex also counts local file paths.

Skit's source and limits: Codex 0.160.1, Claude Code 2.1.292.

Migration

Map current readers, writers, data shape, compatibility window, and ownership before editing.

  • Define forward path and rollback path.
  • Preserve existing data; make destructive steps explicit and separately authorized.
  • Keep mixed-version operation safe where rollout can overlap.
  • Sequence expand, migrate, verify, then contract when applicable.
  • Make retries idempotent and partial failure observable.
  • Verify old and new paths at required transition stages.

Stop after requested stage passes; do not perform later destructive contraction implicitly.

Source: SKILL.md on GitHub

Skill behaviors

No rule matched.

skilld matched fixed text patterns in SKILL.md and file names. Patterns miss obfuscated code.

skilld run checks every file with the same patterns. It asks for approval before it loads a Skill with a behavior marked Needs approval.

Third-party checks

No alerts2mo3 checks · Risk SAFE
  • Gen Agent Trust Hub2mo

    This skill provides conceptual guidelines for planning and executing safe migrations. It does not contain any executable code, scripts, or external dependencies.

  • Socket2mo

    No alerts

  • Snyk2mo

    Risk: LOW · No issues

Provenance

Signed by skilld at bad48a0. This ties the file your Agent reads to that commit on GitHub. It does not review the instructions.

Last checked against GitHub last week.

Activeupdated 2 months ago

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