changeset

description	Command: changeset
name	changeset
metadata	{"skiller":{"source":".agents/rules/changeset.mdc"}}

Changeset

Changesets document package changes for release. Concise bullets, imperative voice, user impact only.

Core principle: one action verb + one impact statement = one bullet.

When To Use

Use when:

• Creating .changeset/*.md files
• Documenting package changes: feat, fix, breaking
• Updating Plate UI registry changelog source for copied registry components

Do not use for:

• Internal docs
• Commit messages
• PR descriptions

Critical Rules

1. Core packages: no minor

Forbidden: minor changesets for:

• @platejs/slate
• @platejs/core
• platejs

Use patch instead. minor on those explodes version bumps across dependents.

# Wrong
---
"@platejs/core": minor
---

# Correct
---
"@platejs/core": patch
---

Only real breaking changes get major.

2. One package per file

Never combine packages in one changeset.

# Wrong
---
'@platejs/core': patch
'@platejs/utils': patch
---

# Correct
.changeset/core-fix-types.md
.changeset/utils-add-helper.md

3. Always relative to main, never last commit

NEVER write a changeset relative to the last commit, staged diff, current working tree, branch-local plan, or the change you just made. Those are agent breadcrumbs, not release truth.

Before creating or editing a changeset, answer one question:

What will a user upgrading from current main observe?

Use main / origin/main as the release baseline. If a symbol, option, behavior, file, or bug only existed inside the current branch and never existed on main, do not write a removal, migration, or breaking changeset for it. Instead, describe only the final user-visible delta from main, or write no changeset if there is no published package delta.

Write changesets for the user-visible delta from the current main branch.

That means:

• describe what users upgrading from main need to know
• describe migration steps only when the user actually has to do something
• prefer API shape, runtime behavior, serialized data shape, or config changes
• check whether any named removed/renamed API actually exists on main before writing removal or migration prose

Do not write:

• last-commit-relative removals for APIs introduced and deleted on the same branch
• implementation diary
• architecture rationale
• internal ownership or seam language
• test coverage notes
• "editor-owned", "normalize path", "wrap semantics", or similar internal phrasing unless the public API literally uses those words

If a package changed internally on this branch but has no user-visible delta from main, do not write a changeset for that package.

4. Registry work is registry-changelog work

If changes are only under apps/www/src/registry/, do not write a package changeset.

Use the registry-changelog skill instead. It owns the source entry schema, scaffold command, generator command, and verification check:

node tooling/scripts/generate-ui-changelog-entries.mjs --new <id> --summary "<summary>" --items <item-a,item-b> --kind <kind>
node tooling/scripts/generate-ui-changelog-entries.mjs --write
node tooling/scripts/generate-ui-changelog-entries.mjs --check

sync-plate-ui is for downstream user apps consuming the generated JSON. Do not use it to produce upstream Plate changelog entries.

5. Style

Use imperative voice:

• Add support for X
• Fix Y behavior
• Remove deprecated Z

Do not use:

• Added ...
• We fixed ...

Keep simple changes to one line:

- Fix `asChild` TypeScript error
- Add `disabled` prop to Button

Use code examples only when needed:

// Before
editor.api.foo();

// After
editor.tf.foo();

Focus on user impact only. No implementation diary.

Prefer this shape:

• one summary sentence
• optional short **Migration:** block
• optional before/after example only when migration would be ambiguous

If a sentence would sound stupid in release notes, cut it.

Template

Simple:

---
"@platejs/utils": patch
---

Fix `isEmpty` not handling void elements correctly

API change:

---
"@platejs/core": patch
---

Rename `editor.api.foo` to `editor.tf.foo`

```tsx
// Before
editor.api.foo();

// After
editor.tf.foo();
```

Breaking change:

---
'@platejs/basic-nodes': major
---

Remove `SkipMarkPlugin`; functionality is built into core

**Migration:** Remove `SkipMarkPlugin` from your plugin list. Configure marks directly:

```tsx
MyMarkPlugin.configure({
  rules: { selection: { affinity: 'outward' } },
});
```

Red Flags

Before shipping:

• Used minor for @platejs/slate, @platejs/core, or platejs? Change to patch
• Multiple packages in frontmatter? Split files
• Describes the last commit, working tree, or branch-only API instead of the user-visible delta from main? Rewrite it
• Claims an API was removed or needs migration without proving that API exists on main? Delete that claim
• Past tense verbs? Fix them
• Multiple paragraphs? Condense
• Too much explanation? Cut it
• API change without before/after? Add one

Registry Changelog

For apps/www/src/registry changes, use the registry-changelog skill. Do not duplicate its schema here.