cc-file-history-mod（kukaka）: Claude Code Mod のコードと画面

何をするか

欄・プロンプトの上の帯・トーストを描く
/file-history を足す
Edit・Write・Bash の呼び出しを見張る（止めることがある）
classic.SessionStart・session.start・ui.closeにフックする
プロセスを起こす

良いところ

ネットワークに出ない
TypeScript で書かれている
エラーを扱う

作り始めるためのコード

2 種類あります。上のデザインから modscode が書いた雛形と、その Mod 自身のコードのうち描いている部分です。

雛形（register.tsx）

import type { Register } from 'claude-code'

// Drawn like cc-file-history-mod by lixinghui (pane, band, toast), as modscode read it from the mod's code:
// https://modscode.com/gallery/kukaka-cc-file-history-mod/
// Written by modscode from that reading, not copied from the mod: use it as you like.
// Each value below stands for one the mod works out at run time; put in your own.
export const register: Register = on => {
  // the pane: open it with $.ui.open({ id: 'my-pane', title: "File history" })
  on('ui.render', { component: 'Pane', requestId: 'my-pane' }, async ($, e) => {
    const { Box, Text, Button } = $.ui.resolve(e)
    const totalFiles = '…'
    const totalEdits = '…'
    const filePath = '…'
    const length = '…'
    const filePath2 = '…'
    const filePath3 = '…'
    return (
      <Box flexDirection="column" paddingX={1} gap={1}>
        <Box flexDirection="row" gap={1}>
          <Text bold color="white">
            File history
          </Text>
          <Text color="white">
            {`${totalFiles} file, ${totalEdits} edit`}
          </Text>
          <Box flexGrow={1} />
          <Button label="Close" variant="primary" />
        </Box>
        <Box flexDirection="column" gap={1}>
          <Box flexDirection="row" gap={1}>
            <Text bold color="white">
              {filePath}
            </Text>
            <Text color="white">
              {`${length} edit`}
            </Text>
          </Box>
          <Box flexDirection="column" gap={1} paddingLeft={2}>
            <Box flexDirection="row" gap={1} />
          </Box>
          <Box flexDirection="column" gap={1} paddingLeft={2}>
            <Box flexDirection="row" gap={1} />
          </Box>
          <Box flexDirection="column" gap={1} paddingLeft={2}>
            <Box flexDirection="row" gap={1} />
          </Box>
        </Box>
        <Box flexDirection="column" gap={1}>
          <Box flexDirection="row" gap={1}>
            <Text bold color="white">
              {filePath2}
            </Text>
            <Text color="white">
              {`${length} edit`}
            </Text>
          </Box>
          <Box flexDirection="column" gap={1} paddingLeft={2}>
            <Box flexDirection="row" gap={1} />
          </Box>
          <Box flexDirection="column" gap={1} paddingLeft={2}>
            <Box flexDirection="row" gap={1} />
          </Box>
          <Box flexDirection="column" gap={1} paddingLeft={2}>
            <Box flexDirection="row" gap={1} />
          </Box>
        </Box>
        <Box flexDirection="column" gap={1}>
          <Box flexDirection="row" gap={1}>
            <Text bold color="white">
              {filePath3}
            </Text>
            <Text color="white">
              {`${length} edit`}
            </Text>
          </Box>
          <Box flexDirection="column" gap={1} paddingLeft={2}>
            <Box flexDirection="row" gap={1} />
          </Box>
          <Box flexDirection="column" gap={1} paddingLeft={2}>
            <Box flexDirection="row" gap={1} />
          </Box>
          <Box flexDirection="column" gap={1} paddingLeft={2}>
            <Box flexDirection="row" gap={1} />
          </Box>
        </Box>
      </Box>
    )
  })

  // the band above the prompt; what else goes there is drawn under it
  on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
    const { Box, Text, Button } = $.ui.resolve(e)
    const totalEdits = '…'
    const totalFiles = '…'
    return (
      <Box flexDirection="column">
        <Box flexDirection="row" gap={2} paddingX={1}>
          <Text color="magenta" bold>
            {`▶ File history: ${totalEdits} edit (${totalFiles} file)`}
          </Text>
          <Button label="View" hotkey="v" variant="primary" />
        </Box>
        {await next(e)}
      </Box>
    )
  })

  on('session.start', async ($, e, next) => {
    const basename = '…'
    const msg = '…'
    await $.ui.toast(`reverted ${basename}`)
    await $.ui.toast(`revert failed: ${msg}`)
    return next(e)
  })
}

Mod 自身のコード

Mod のライセンス（Apache-2.0）に従って載せています。全文は下にあります。写すときは著作権表示を残してください。

cc-file-history-mod/hooks/register.tsx 940〜942 行 · ペイン

cc-file-history-mod/hooks/register.tsx:940

  on('ui.render', { component: 'Pane', requestId: PANE_ID }, ($, e) => {
    return renderPane($, e as never) as never
  })

cc-file-history-mod/hooks/register.tsx 550〜709 行 · ペイン

cc-file-history-mod/hooks/register.tsx:550

function renderPane($: EngineInterface, e: PaneRenderEvent) {
  type El = (props: Record<string, unknown> & { children?: unknown }) => unknown
  const { Box, Text, Button, Code } = $.ui.resolve(e as never) as {
    Box: El
    Text: El
    Button: El
    Code: El
  }

  const groups = groupByFile(edits)
  const totalFiles = groups.length
  const totalEdits = edits.length

  const closePane = async () => {
    paneOpen = false
    await $.ui.close({ id: PANE_ID })
  }

  const header = Box({
    flexDirection: 'row',
    gap: 1,
    children: [
      // The engine renders Pane chrome in a fixed dark fill in both light
      // and dark terminal modes, but the default Text colour (and the
      // Button label colour) adapts to the terminal — in a light terminal
      // it's dark, on top of the dark chrome that becomes near-invisible.
      //
      // For Text we can pin `color: 'white'` directly. For Button the
      // props don't include `color` (ButtonProps at index.d.ts:1000 only
      // exposes `dimColor`, `variant`, `plain`, `hover`), so `color:
      // 'white'` is silently dropped — that's why the buttons stay
      // invisible after a `color: 'white'` edit. The Button-level escape
      // is `variant: 'primary'`, which makes the terminal render the
      // label in the engine's accent colour (bright in both terminal
      // modes, so it always contrasts with the dark Pane chrome). We
      // mark every Button primary; Close / Show / Revert are the only
      // pressable leaves on each surface, so "the one to press" reads
      // honestly. The status-char accents (red / yellow / green) already
      // sit on the bright side of the palette and need no override.
      Text({ bold: true, color: 'white', children: 'File history' }),
      Text({
        color: 'white',
        children: `${totalFiles} file${totalFiles === 1 ? '' : 's'}, ${totalEdits} edit${totalEdits === 1 ? '' : 's'}`,
      }),
      Box({ flexGrow: 1 }),
      Button({ key: 'close', label: 'Close', variant: 'primary', onPress: closePane }),
    ],
  })

  if (totalEdits === 0) {
    return Box({
      flexDirection: 'column',
      paddingX: 1,
      gap: 1,
      children: [
        header,
        Text({ color: 'white', children: 'no edits captured yet' }),
      ],
    })
  }

  const statusChar = (rec: EditRecord): { char: string; color: string } => {
    if (rec.kind === 'delete') return { char: '×', color: 'red' }
    return rec.beforeExists
      ? { char: 'M', color: 'yellow' }
      : { char: '●', color: 'green' }
  }

const kindLabel = (rec: EditRecord): string => {
  if (rec.kind === 'edit') return 'edit'
  if (rec.kind === 'delete') return 'delete'
  return 'write'
}

  const toggleExpand = (id: number) => {
    if (expanded.has(id)) {
      expanded.delete(id)
    } else {
      expanded.add(id)
    }
    $.ui.invalidate('ui.render')
  }

  const groupBoxes = groups.map((g) => {
    const fileHeader = Box({
      flexDirection: 'row',
      gap: 1,
      children: [
        Text({ bold: true, color: 'white', children: g.filePath }),
        Text({
          color: 'white',
          children: `${g.records.length} edit${g.records.length === 1 ? '' : 's'}`,
        }),
      ],
    })

    const recordRows = g.records.map((rec) => {
      const revert = () => {
        void revertById($, rec.id)
      }
      const isOpen = expanded.has(rec.id)
      const showDiff = () => {
        toggleExpand(rec.id)
        // Kick off the diff (lazily) so the next redraw has something to
        // show. We don't await — toggleExpand's invalidate handles the
        // redraw, and the diff lands as soon as `diff -u` returns.
        if (expanded.has(rec.id)) {
          void unifiedDiff($, rec)
        }
      }
      const status = statusChar(rec)
      const rowChildren: unknown[] = []

      rowChildren.push(Text({ color: status.color, children: status.char }))
      rowChildren.push(Text({ color: 'white', children: formatTime(rec.ts) }))
      rowChildren.push(Text({ color: 'white', children: kindLabel(rec) }))

      if (rec.beforeExists && typeof rec.before === 'string') {
        const lines = rec.before.split('\n').length
        rowChildren.push(
          Text({
            color: 'white',
            children: `(${lines} line${lines === 1 ? '' : 's'} before)`,
          }),
        )
      }

      rowChildren.push(Box({ flexGrow: 1 }))

      // [Show] / [Hide] — only when we have something to diff against. Three
      // independent sources cover all rows: Edit has hunkBefore/hunkAfter
      // from the tool input; Write has before (file read) + after (input
      // content); Delete has `before` only (file content pre-deletion), and
      // `unifiedDiff` renders that as a "removed-everything" diff against
      // /dev/null.
      const hasHunk =
        typeof rec.hunkBefore === 'string' && typeof rec.hunkAfter === 'string'
      const hasFull =
        typeof rec.before === 'string' && typeof rec.after === 'string'
      const hasDelete = rec.kind === 'delete' && typeof rec.before === 'string'
      const canDiff = hasHunk || hasFull || hasDelete
      if (canDiff) {
        rowChildren.push(
          Button({
            key: `diff-${rec.id}`,
            label: isOpen ? 'Hide' : 'Show',
            variant: 'primary',
            onPress: showDiff,
          }),
        )
      } else if (rec.beforeExists && typeof rec.before === 'string') {
        // Have before but no after — the file read after `next(e)` failed.
        // Surface it explicitly so the user knows why the toggle is missing.
        rowChildren.push(Text({ color: 'white', children: '(no diff: after missing)' }))
      } else if (rec.kind === 'edit') {
        // Edit without a hunk shouldn't happen (input always carries it), but
        // be defensive — no message to avoid a misleading "missing".
        rowChildren.push(Text({ color: 'white', children: '(no diff)' }))
      }

cc-file-history-mod/hooks/register.tsx 961〜997 行 · バンド

cc-file-history-mod/hooks/register.tsx:961

  on(
    'ui.render',
    { component: 'AbovePrompt' },
    async ($, e, next) => {
      type BoxEl = (props: Record<string, unknown> & { children?: unknown }) => unknown
      const { Box } = $.ui.resolve(e) as { Box: BoxEl }
      const ourBand = renderBand($, e as never)
      if (ourBand === null) {
        // No band of our own — yield via next(e) so the next plugin's
        // tree (typically cc-context-mod) is preserved as-is.
        return (await next(e)) as never
      }
      // We have a band to draw. Pull next(e) to keep the other plugin's
      // tree, then compose ours below it in a column.
      //
      // `next(e)` may throw "no implementation for ui.render" if no other
      // AbovePrompt handler is registered. Catch and treat as "no others".
      let others: unknown = null
      try {
        others = await next(e)
      } catch {
        others = null
      }
      // Element-shaped = plain object with a string `type` field. Test
      // stubs sometimes return engine internals; drop those.
      const looksLikeElement =
        others !== null &&
        others !== undefined &&
        typeof others === 'object' &&
        typeof (others as { type?: unknown }).type === 'string'
      if (!looksLikeElement) return ourBand as never
      return Box({
        flexDirection: 'column',
        children: [others, ourBand],
      }) as never
    },
  )

cc-file-history-mod/hooks/register.tsx 797〜865 行 · バンド

cc-file-history-mod/hooks/register.tsx:797

function renderBand(
  $: EngineInterface,
  e: BandRenderEvent,
): unknown | null {
  type El = (props: Record<string, unknown> & { children?: unknown }) => unknown
  const { Box, Text, Button } = $.ui.resolve(e) as {
    Box: El
    Text: El
    Button: El
  }

  // Empty + Pane-open cases both yield — the handler `next(e)`s for us.
  if (edits.length === 0 || paneOpen) return null

  const totalFiles = groupByFile(edits).length
  const totalEdits = edits.length

  const openPane = async () => {
    try {
      const r = await $.ui.open({
        id: PANE_ID,
        title: 'File history',
        focus: true,
        closeOnEscape: true,
      })
      paneOpen = r.isPlaced === true
      if (!r.isPlaced) {
        const reason = 'reason' in r ? String(r.reason) : 'unknown'
        const hint = reason.includes('below 110 columns')
          ? ' — type /file-history once to unlock'
          : ''
        $.ui.toast(
          `file-history: pane open refused${hint}: ${reason}`,
          { timeoutMs: 6000 },
        )
      }
    } catch (err) {
      const msg = String((err as { message?: string })?.message ?? err)
      $.ui.toast(`file-history: pane open failed: ${msg}`, {
        timeoutMs: 4000,
      })
    }
    // Re-draw the band now that `paneOpen` flipped — if it didn't place,
    // the band stays visible; if it did, the band yields and the Pane
    // renders. The hotkey `v` also reaches the band, so this is the path
    // for both click and keyboard.
    $.ui.invalidate('ui.render')
  }

  return Box({
    flexDirection: 'row',
    gap: 2,
    paddingX: 1,
    children: [
      Text({
        color: 'magenta',
        bold: true,
        children: `▶ File history: ${totalEdits} edit${totalEdits === 1 ? '' : 's'} (${totalFiles} file${totalFiles === 1 ? '' : 's'})`,
      }),
      Button({
        key: 'open-pane',
        label: 'View',
        hotkey: 'v',
        variant: 'primary',
        onPress: openPane,
      }),
    ],
  })
}

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コードが呼ぶもの

プログラム起動ファイル書き込みツール呼び出し

コードから読み取ったデザイン

Claude — Code

reverted src/

revert failed: Edit

▶ File history: 3 edit (3 file)View v

Claude に頼む…

File history

File history3 file, 3 edit

src/app.ts3 edit

読み取ったコミットのソースから描いたもので、動かした結果ではありません。一覧は 3 回描き、条件はデスクトップアプリで描く最初の分岐を取り、動かしたときにだけ決まる値は仮の例（点線の下線）にするか省きます。色と書体はこのサイトのものです。

コードから読めること

2026-10-06 に読んだコミット 4c1679a3a4dd のソースから。最初のまとまりが載せる条件で、残りは自分で判断するための材料です。後のコミットは、次に読むまで見ていません。

載せる条件: 確かめやすいコード
入口を読んだ	hooks/hooks.json が名指すモジュールをすべて読んだ。cc-file-history-mod/hooks/register.tsx
解析できる	すべてのファイルが TypeScript か JavaScript として解析できる。2 ファイルを解析
コードが Mod の中で完結	import は Mod 自身のファイルかエンジンのモジュールだけ。パッケージも require もない。コードはすべて Mod の中
読める	圧縮した行・eval・new Function・計算した道の import()・符号化した塊がない。圧縮・eval・符号化した塊なし
呼び出しが見える	通信とプログラム起動はその場で $.http.fetch・$.process.run と書き、他へ渡さない。外への呼び出しはすべてその場の $ で
入れる前に自分で判断する材料
描く場所	コードから読んだ、描く先。ターミナル・デスクトップアプリ・両方・何も描かない（フックだけ: 見張りやプロンプトの書き換え）のどれか。出すだけで、外す理由にはしない。ターミナルとデスクトップアプリに同じように描く
入れる手順	リポジトリ自身の .claude-plugin/marketplace.json にこの Mod が載っていて、ページに書いた手順でそのマーケットプレイスから入れられるか。リポジトリの .claude-plugin/marketplace.json に載っており、そこから入れられる
Windows のプログラム	$.process で起動するプログラムが Windows にあるか（tail・date・open・osascript・/usr/… などは無い）。cc-file-history-mod/hooks/register.tsx:458 rm（Windows にない）; cc-file-history-mod/hooks/register.tsx:529 rm（Windows にない）
通信	fetch の送り先（https のホスト）がコードに書いてあるか。通信なし
プログラム	起動するプログラムの名前がコードに書いてあり、シェル・インタプリタ・通信用の道具でないか。diff, rm
読んで送る	ファイルや環境変数を読み、かつ通信するか。通信しない
ソースの鍵	ソースに API キーや秘密鍵らしきものがあるか。ソースに鍵なし
ライセンス	オープンなライセンス（MIT・Apache-2.0・BSD・ISC・Unlicense・0BSD・CC0）で全文があれば、modscode にコードを載せる。違えばリンクだけ。Apache-2.0

コードの文面を読んだだけで、安全の審査ではありません。動かしてはおらず、起動するプログラムの中で何が起きるかも見えません。入れる前の確認はあなたの役目です。載せる条件

入れる

入れる前に、必ず自分で確かめてください。Mod はサンドボックスなしで、あなたの権限で動きます。modscode はこのコードの安全を保証しません。下のコードを読み（またはフォルダーで claude plugin validate .）、触るものを見て、読んだコミットを入れてください。

リポジトリがそのままマーケットプレイスです。このマーケットプレイスを足し（ターミナルでは次のコマンド、デスクトップアプリではプラグインの設定）、そこから Mod を入れます。

/plugin marketplace add kukaka/cc-mods

/plugin install cc-file-history-mod@cc-mods

入るのはマーケットプレイスの最新のコミットで、ここで読んだもの（4c1679a3a4dd）と違うことがあります。入れる前に見比べてください。

Claude に聞く

modscode のコネクタを入れると、Claude がこのデザイン・コードが触るもの・コードを読んで、それをもとに作れます。たとえば:

modscode のデザイン「kukaka-cc-file-history-mod」をコードごと読んで、同じようなペインを作って

Claude から探す: MCP コネクタ