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docs(design): distribute karasu skills as a karasu-skills package via plugin marketplace and skill install - #2931

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@kompiro kompiro commented Sep 27, 2026 •

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Summary

Revises docs/design/karasu-authoring-skill.md (merged in #2907), issue 1 (distribution).

The design recommended 1-C (bundle the skill in the karasu CLI package, extract it with karasu skill install) and rejected 1-B (Claude Code plugin marketplace). A new requirement changes that: Claude Code users should be able to install karasu's skills as a plugin when they choose to. Keeping the skills in a separate repository was considered and rejected, because it takes the skill drift guards (skill-cli-refs, skill-reference-bundle-sync, krs-fences) out of karasu CI.

New recommendation, 1-D:

  • The skills live in a new workspace package, published to npm as karasu-skills and shaped as a Claude Code plugin (.claude-plugin/plugin.json + skills/). It holds both karasu-author and reverse-architecture.
  • Claude Code users install it through a root .claude-plugin/marketplace.json entry with an npm source. Other agents use karasu skill install, which depends on the same package.
  • karasu-skills keeps an independent version (lockstep versions were considered and dropped in Version all published packages in lockstep with one changesets fixed group #2936) and ships on the same release train as the CLI. prepack stamps the CLI version at pack time into each SKILL.md as a floor; the skill warns at session start, on both paths, only when the user's CLI is older. A PR that changes CLI behaviour the skills rely on also names karasu-skills in its changeset.
  • .claude/skills/reverse-architecture becomes a symlink into the package so karasu development keeps using it. The guards and path filters move to the real files.

Slice C splits into C1 (package + plugin path, proven with reverse-architecture alone, including the one-time manual npm bootstrap and Trusted Publisher setup) and C2 (karasu-author + skill install, the existing #2912).

Refs #2901, #2912

🤖 Generated with Claude Code

Summary by CodeRabbit

  • Documentation
    • Revised the distribution plan for karasu-author and reverse-architecture, including installation through the Claude Code plugin marketplace or karasu skill install.
    • Documented the CLI’s dependency on karasu-skills and a minimum-version check before skill tasks begin.
    • Added guidance for backward compatibility, deprecation notices, and checking command and flag status with karasu capabilities --json.
    • Updated skill procedures and packaging checks to cover version and capability checks, both skills, and version metadata.
    • Revised the approach comparison and implementation plan.

… plugin marketplace and skill install (#2901)

The design recommended bundling the skill inside the CLI package (1-C) and
rejected a Claude Code plugin (1-B). A new requirement, that Claude Code
users can install the skills as a plugin, is met by option 1-D: the skills
live in a new workspace package published as karasu-skills in lockstep
with the CLI, reached both from a marketplace.json npm entry and from
`karasu skill install`. reverse-architecture moves into the same package.
The distribution slice C splits into C1 (package + plugin path, proven with
reverse-architecture) and C2 (karasu-author + skill install).

Refs #2901

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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📝 Walkthrough

Walkthrough

The design document recommends plan 1-D. It describes distributing both skills through a shared karasu-skills package, using a Claude Code marketplace and karasu skill install. It also updates CLI compatibility rules, validation checks, and implementation milestones.

Changes

Skill distribution design

Layer / File(s) Summary
Package distribution and versioning
docs/design/karasu-authoring-skill.md
The document recommends a shared karasu-skills package for plugin and CLI distribution. It describes independent package versions, CLI release linkage, minimum CLI version checks, and packaging details.
CLI compatibility and deprecation
docs/design/karasu-authoring-skill.md
The document defines CLI compatibility rules, hidden aliases and deprecation notices, and the karasu capabilities --json response. The interview protocol checks the stamped minimum CLI version and reports deprecated command use.
Validation and implementation plan
docs/design/karasu-authoring-skill.md
The document updates guard and packaging checks, compares distribution options, and revises implementation slices and prerequisites.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to f0f03

This documentation change leaves no concrete merge-blocking risk. The proposed package and release behavior will need implementation in later work.

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Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title uses the required docs(design) scope, describes the main design change, uses imperative mood, and has no trailing period.
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@kompiro

kompiro commented Sep 27, 2026

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Code review

Found 1 issue:

  1. The design adds a changesets fixed group for karasu and karasu-skills, which reverses a recorded decision without citing it. ADR-1315 chose "independent versioning(fixed / linked なし)", and ADR-1758 reaffirmed it the last time a package joined changesets ("independent versioning(fixed/linked なし)は維持し"). The design should name both ADRs and say why lockstep versioning is needed here (the design-doc process asks for conflicting past decisions to be stated and linked).

- 公開側: changesets の `fixed` に `karasu` と `karasu-skills` を入れ、常に同じバージョンで同時に publish する。CLI は `karasu-skills` を `workspace:*` で依存し、publish 時に正確なバージョンへ書き換わるので、`npx karasu@<ver>` は必ず同じ `<ver>` の skill を持つ。
- 利用者側: plugin と CLI は別々に入るので、手元で一致する保証はない。1-C の「更新の契約」を両経路に共通で適用する。pack 時(`prepack`)に各 SKILL.md の front matter へ `karasu-version: <ver>` を刻み、skill はセッション開始時に `karasu --version` と照合する。食い違えば作業に入る前に利用者へ知らせる(plugin 経路なら plugin の更新か CLI の更新、`skill install` 経路なら再実行を促す)。repo 内の正本には値が入っておらず、照合は「karasu repo 内で開発中」として飛ばす。

1. **リリース自動化に changesets(`@changesets/cli` + `changesets/action`)を採用する。** `.changeset/config.json` は `access: public`、independent versioning(`fixed` / `linked` なし)、`ignore` に `karasu` 以外の全パッケージ(`@karasu-tools/app` / `core` / `lsp` / `e2e` / `vscode-e2e`、`karasu-vscode`)を列挙 — 実質 `karasu`(CLI)のみが公開対象。root `package.json` に `changeset` / `version-packages`(`changeset version && pnpm install --lockfile-only`)/ `release`(`pnpm build && changeset publish`)スクリプトを置く。

1. **`.changeset/config.json` の `ignore` から `karasu-vscode` を外す。** `changeset version` が version bump + `packages/vscode/CHANGELOG.md` 生成を担う。independent versioning(`fixed`/`linked` なし)は維持し、拡張は CLI と独立した版・cadence のまま。
2. **npm publish は発生させない。** `karasu-vscode` は `private: true` なので `changeset publish` の対象外(自動スキップ)。`ignore` から外しても npm へ誤公開されない。

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kompiro and others added 4 commits September 27, 2026 14:54
…he CLI reads karasu-skills (#2901)

Address the /code-review findings on #2931:

- Lockstep versioning now rests on ADR-2936 (supersedes ADR-1758,
  overturns ADR-1315's independent versioning) instead of silently
  contradicting them.
- State how `karasu skill install` reaches the skill files: a real
  runtime dependency on karasu-skills kept external to esbuild, an
  exception to ADR-1363 limited to non-bundlable content.
- The guard retarget is needed because CI / lefthook path filters do not
  fire on the real files, not because the scripts cannot follow symlinks.
- The background no longer says reverse-architecture is out of this
  design's distribution scope.

Refs #2901

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…loor stamp (#2901)

Lockstep versioning (#2936) was dropped: releasing on the same train is
what mattered, and version numbers stay per package. karasu-skills
therefore versions independently. The SKILL.md stamp becomes the CLI
version at pack time, read as a floor: the skill warns only when the
user's CLI is older. Changes to CLI behaviour the skill relies on must
also name karasu-skills in their changeset so the skill is republished.

Refs #2901

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…nd name the guards C1 touches (#2901)

Fixes from a second /code-review pass (all below the posting threshold,
confirmed against the code):

- The constraint section still demanded an exact CLI match both ways; it
  now explains why the design checks only a floor.
- Same-release shipping comes from the dependency cascade, not from the
  release train, which is still being designed (#2922).
- C1 also updates reference-docs-check-skip.yml, the changesets rule's
  package list and paths, and release.yml's public-package header.

Refs #2901

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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kompiro marked this pull request as ready for review September 27, 2026 16:33
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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
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Review comments at @docs/design/karasu-authoring-skill.md:
- Line 112: C1/C2 に、互換性チェックを実際に起動する実行経路を追加してください。plugin 経路と karasu skill install
経路それぞれで、スキル呼び出し時などチェックの起動タイミング、SKILL.md の front matter から karasu-version
を読む方法、karasu --version がその値より古い場合に作業開始前に利用者へ通知する方法を明記してください。

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Comment thread docs/design/karasu-authoring-skill.md
A frontmatter field does not run anything. The check is Step 0 of each
SKILL.md body, performed by the agent on both install paths; prepack also
writes the version into the body because front matter may not reach the
agent. Test that no placeholder survives packing. C1 adds Step 0 to
reverse-architecture.

Refs #2901

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @docs/design/karasu-authoring-skill.md:
- Line 115: Update the version-check guidance in the Step 0 procedure so it does
not present `npx karasu@latest` as a persistent update to the global CLI.
Recommend `npm i -g karasu@latest` for that path; if retaining the `npx` option,
require rechecking with `npx karasu@latest --version` and running subsequent CLI
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Comment thread docs/design/karasu-authoring-skill.md Outdated
…atest` (#2901)

`npx karasu@latest` runs the package once and leaves whatever `karasu`
resolves to unchanged, so Step 0 would stop again. Advise the update that
matches how the skill calls the CLI: a global install or the project's
devDependency.

Refs #2901

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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Actionable comments posted: 2


  • 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @docs/design/karasu-authoring-skill.md:
- Line 115: Step 0 の版確認を CLI の利用経路に合わせて更新してください。グローバル版を使う場合は `karasu
--version`、プロジェクトの devDependency を使う場合は `npx karasu --version`
で確認し、既存の版比較と停止条件は維持してください。
- Line 115: Step 0 の CLI 版チェックを更新し、CLI が刻印版以上かだけでなく plugin skill
の上位互換条件も記録・検査してください。互換条件を定義できない場合は、既存 skill の前提を壊す CLI 変更を使う前に plugin
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Comment thread docs/design/karasu-authoring-skill.md Outdated
…#2901)

A bare `karasu --version` cannot see a project-local devDependency, so a
user who only has the local CLI would be stopped after updating it. Step 0
now chooses `npx --no-install karasu` when package.json lists karasu, and
the global `karasu` otherwise, and every later step uses the same form.

Refs #2901

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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coderabbitai[bot]
coderabbitai Bot previously approved these changes Sep 28, 2026
Plugins from third-party marketplaces do not auto-update, so a
republished skill may never reach the user. Following CodeRabbit's
plugin, the CLI takes the compatibility burden: it keeps the
agent-facing surface backward compatible through hidden aliases, and it
tells skills what was deprecated or removed and what replaces it, both
as a fixed-format stderr notice and via `karasu capabilities --json`.
One deprecation table in the CLI drives aliases, notices and the
capability output. New slice E carries this; C2 depends on it.

Refs #2901

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
Review comments at @docs/design/karasu-authoring-skill.md:
- Line 179: 「後方互換」の方針を更新し、更新されていない旧 plugin skill が使うコマンド別名を削除する前に、その skill
のサポート終了を検出・通知する手順を定めてください。検出手段を定められない場合は、対応中の skill が使う別名を削除しない方針を明記してください。

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Comment thread docs/design/karasu-authoring-skill.md Outdated
…ones forever (#2901)

Plugins do not auto-update, so removing an alias one minor later would
break an un-updated skill. Aliases may now be removed only in a major
release (not before 1.0 while on 0.x), announced in the CHANGELOG, and
removed names stay in the table as permanent tombstones that fail with
the replacement. Skills without the capability step still see the
notices on stderr, so support ends at the major that drops the alias.

Refs #2901

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
coderabbitai[bot]
coderabbitai Bot previously approved these changes Sep 28, 2026
…tributed (#2901)

The background paragraph packed the role difference and the distribution
plan into one sentence, which read as "reverse-architecture is not
distributed". Split it: this design adds karasu-author as a new skill and
also distributes the existing reverse-architecture through the same
package; reverse-architecture is not retired.

Refs #2901

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@kompiro
kompiro merged commit cac2ff7 into main Sep 28, 2026
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kompiro deleted the docs/2901-skills-distribution branch September 28, 2026 13:29
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