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modscode / コード参考書 / スラッシュコマンドを足す

スラッシュコマンドを足す($.command.register)

.claude/commands/ の Markdown は Claude への頼みを定型にするだけですが、mod のコマンドはコードで動きます。session.start で $.command.register({ name, description }) し、on('command.run', { command: name }) で受けて { text }(何も出さないなら {})を返します。ペインを開くコマンドにもよく使います。

$.command.registeron('command.run', { command })e.args

最小の形

hooks/register.js
export function register(on) {
  on('session.start', async ($, e, next) => {
    await $.command.register({ name: 'standup', description: 'Summarize what changed today', argumentHint: '[days]' })
    return next(e)
  })
  
  on('command.run', { command: 'standup' }, async ($, e) => {
    const days = e.args || '1'
    const log = await $.process.run(['git', 'log', '--oneline', '--since=' + days + '.days'])
    return { text: log.stdout || 'Nothing changed.' }
  })
}

modscode が公式ドキュメントの API で書いた最小の例です。自由に使えます。

実際の Mod のコード(6 本)

GitHub の公開 Mod から、図鑑が読んだコミットの該当行をそのまま引いています。見出しから Mod のページ(何をするか・良いところ・画面・コードが触るもの)へ、ファイル名から GitHub の該当行へ移れます。

写す前・入れる前に、必ず自分でコードを確かめてください。Mod はサンドボックスなしで、あなたの権限で動きます。modscode は中身の安全を保証しません。

better-statusline Ewen Gao · ターミナル+デスクトップ · ★ 135

The status line above the prompt: the session's status and the music playing, one design

on('session.start', async ($, e, next) => {
  const started = await next(e)
  if (!e.isInteractive) return started
  await Promise.all([
    $.command.register({ name: 'fold', description: 'Fold the status line into one row, or open it to five', immediate: true }),
    seed($),
  ])
  void readGit($)
  plan($)
  watchAgents($)
  $.clock.every(60_000, () => void readGit($))
  void setUp($, options as Options).then(machine => (machine.folder === null ? undefined : listen($)))
  return started
})

MIT ライセンス。写すときは著作権表示を残してください。 この Mod のコードと画面

ライセンスの全文(MIT)
MIT License

Copyright (c) 2026 Ewen Gao

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

intermission Jarrod Watts · ターミナル+デスクトップ · ★ 99

Play Doom deathmatch while Claude works, and get handed back when it's done

on('session.start', async ($, e, next) => {
  isOn = (await $.store.get('isOn')) === true
  name = await $.store.get('name')
  if (!name) {
    name = randomName()
    await $.store.set('name', name)
  }
  await $.command.register({
    name: 'intermission',
    description: 'Play Doom while Claude works',
    argumentHint: '[off]',
  })
  return next(e)
})

MIT ライセンス。写すときは著作権表示を残してください。 この Mod のコードと画面

ライセンスの全文(MIT)
MIT License

Copyright (c) 2026 Jarrod Watts

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

ruflo-rag-memory ruvnet · フックだけ · ★ 73986

RuVector memory with HNSW search, AgentDB, and semantic retrieval. As a mod (ADR-445): a write guard that keeps secrets out of memory, /rag-mod, and a status file the console shows

on('session.start', async ($, e, next) => {
  const result = await next(e)
  try {
    s.root = (await $.session.root()) as string | undefined
  } catch {
    /* no project root: the mod still answers, it just writes no status file */
  }
  try {
    await $.command.register({ name: 'rag-mod', description: 'ruflo-rag-memory mod: status, scan <text>, tools' })
  } catch {
    /* a name taken by another plugin must not stop the mod */
  }
  await flush($, s)
  return result
})

MIT ライセンス。写すときは著作権表示を残してください。 この Mod のコードと画面

ライセンスの全文(MIT)
MIT License

Copyright (c) 2024-2026 ruvnet

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

ruflo-ruvllm ruvnet · フックだけ · ★ 73986

RuVLLM local inference with chat formatting (Claude/GPT/Gemini/Ollama/Cohere), model configuration, MicroLoRA fine-tuning, and SONA real-time adaptation. As a mod (ADR-445): a guard that keeps secrets out of adapters and the pattern router…

on('session.start', async ($, e, next) => {
  const result = await next(e)
  try {
    s.root = (await $.session.root()) as string | undefined
  } catch {
    /* no project root: the mod still answers, it just writes no status file */
  }
  try {
    await $.command.register({ name: 'ruvllm-mod', description: 'ruflo-ruvllm mod: status, scan <text>, tools' })
  } catch {
    /* a name taken by another plugin must not stop the mod */
  }
  await flush($, s)
  return result
})

MIT ライセンス。写すときは著作権表示を残してください。 この Mod のコードと画面

ライセンスの全文(MIT)
MIT License

Copyright (c) 2024-2026 ruvnet

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

ruflo-ruvector ruvnet · フックだけ · ★ 73986

Self-learning vector database via npx ruvector@0.2.25 — HNSW, adaptive LoRA embeddings, code-graph clustering, hooks routing, brain/SONA, 103 MCP tools. As a mod (ADR-445): a write guard that keeps secrets out of the vector store and share…

on('session.start', async ($, e, next) => {
  const result = await next(e)
  try {
    s.root = (await $.session.root()) as string | undefined
  } catch {
    /* no project root: the mod still answers, it just writes no status file */
  }
  try {
    await $.command.register({ name: 'ruvector-mod', description: 'ruflo-ruvector mod: status, scan <text>, tools' })
  } catch {
    /* a name taken by another plugin must not stop the mod */
  }
  await flush($, s)
  return result
})

MIT ライセンス。写すときは著作権表示を残してください。 この Mod のコードと画面

ライセンスの全文(MIT)
MIT License

Copyright (c) 2024-2026 ruvnet

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

ruflo-rvf ruvnet · フックだけ · ★ 73986

RVF format for portable agent memory, session persistence, and cross-platform transfer. As a mod (ADR-445): a write guard that keeps secrets out of memory, sessions and transfers, /rvf-mod, and a status file the console shows

on('session.start', async ($, e, next) => {
  const result = await next(e)
  try {
    s.root = (await $.session.root()) as string | undefined
  } catch {
    /* no project root: the mod still answers, it just writes no status file */
  }
  try {
    await $.command.register({ name: 'rvf-mod', description: 'ruflo-rvf mod: status, scan <text>, tools' })
  } catch {
    /* a name taken by another plugin must not stop the mod */
  }
  await flush($, s)
  return result
})

MIT ライセンス。写すときは著作権表示を残してください。 この Mod のコードと画面

ライセンスの全文(MIT)
MIT License

Copyright (c) 2024-2026 ruvnet

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

作り始める

フォルダーに .claude-plugin/plugin.json({"name": "my-mod"})と hooks/hooks.json({"modules": ["register.js"]})を置き、上のコードを hooks/register.js に保存して、claude --plugin-dir . で 1 セッションだけ読み込みます。claude plugin validate . で、フックするイベントと呼ぶ API の一覧が出ます。

ほかのパターン