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handoff-runner

bg session 在 worktree 做完的分支,由你在面板按一顆按鈕快轉進 main:交接單只帶參數,步驟由 mod 推導,執行前檢查、執行後驗證

Code you can checkTerminal + desktopPaneBandToastBoxButtonText

What it does

  • Draws a band above the prompt, a pane
  • Adds /handoff
  • Watches tool calls and can refuse them
  • Hooks session.start, ui.close
  • Keeps its own state between turns

Good points

  • No network calls
  • Written in TypeScript
  • Handles errors

Code to start from

Two kinds: a starter modscode writes from the design above, and the lines of the mod's own code that draw it.

Starter (register.tsx)

register.tsx
import type { Register } from 'claude-code'

// Drawn like handoff-runner by Hangghost (pane, band, toast), as modscode read it from the mod's code:
// https://modscode.com/gallery/hangghost-handoff-runner/
// 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 band above the prompt; what else goes there is drawn under it
  on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
    const { Box, Text } = $.ui.resolve(e)
    const text = '…'
    return (
      <Box flexDirection="column">
        <Text color="yellow" wrap="truncate-end">
          {text}
        </Text>
        {await next(e)}
      </Box>
    )
  })

  // the pane: open it with $.ui.open({ id: 'my-pane', title: "handoff" })
  on('ui.render', { component: 'Pane', requestId: 'my-pane' }, async ($, e) => {
    const { Box, Button } = $.ui.resolve(e)
    return (
      <Box flexDirection="column">
        <Box>
          <Button label="重新檢查" />
          <Button label="關閉" role="dismiss" />
        </Box>
      </Box>
    )
  })
}

The mod's own code

Shown under the mod's licence (MIT); its text is below. Keep the notice if you copy these lines.

plugins/handoff-runner/hooks/register.tsx lines 246–261 · Band
  on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
    if ((e.props as any)?.hasSurvey) return next(e)
    const fail = await read($, failure)
    const text = bandText(await read($, tickets), fail)
    if (text === null) return next(e)
    const { Box, Text } = $.ui.resolve(e)
    const below = await next(e)
    return (
      <Box flexDirection="column">
        <Text color={fail !== null ? 'yellow' : 'cyan'} wrap="truncate-end">
          {text}
        </Text>
        {below}
      </Box>
    )
  })
plugins/handoff-runner/hooks/register.tsx lines 263–348 · Pane
  on('ui.render', { component: 'Pane', requestId: PANE }, async ($, e) => {
    const { Box, Text, Button } = $.ui.resolve(e)
    const rows = pending(await read($, tickets))
    const byId = await read($, rendered)
    const busy = await read($, running)
    const fail = await read($, failure)
    const cands = await read($, candidates)

    const out: any[] = []
    if (fail !== null) out.push(<Text color="yellow" wrap="truncate-end">無法讀取交接單:{fail}</Text>)
    if (rows.length === 0 && fail === null) out.push(<Text dimColor>沒有待辦的交接單。</Text>)

    for (const row of rows) {
      const r = byId[row.id]
      out.push(
        <Text key={`title:${row.id}`} bold wrap="truncate-end">
          {row.title}
        </Text>,
      )
      if (!r) {
        out.push(<Text dimColor>檢查中…</Text>)
        continue
      }
      for (const c of r.prechecks) {
        out.push(
          <Text color={c.ok ? undefined : 'yellow'} dimColor={c.ok || undefined} wrap="truncate-end">
            {checkLine(c)}
          </Text>,
        )
      }
      for (const s of r.steps) {
        out.push(
          <Box flexDirection="column">
            <Text dimColor={s.done_already || undefined} wrap="truncate-end">
              {stepLine(s)}
            </Text>
            <Text dimColor wrap="truncate-end">
              {'  '}
              {argvText(s)}
            </Text>
          </Box>,
        )
      }
      if (r.last_result?.summary) out.push(<Text dimColor wrap="truncate-end">上次:{r.last_result.summary}</Text>)
      const buttons: any[] = []
      if (busy[row.id]) {
        out.push(<Text color="cyan">執行中…</Text>)
      } else if (r.status === 'ready') {
        buttons.push(<Button key={`run:${row.id}`} variant="primary" label="執行" onPress={() => void runTicket($, row.id)} />)
      } else {
        out.push(
          <Text color="yellow" wrap="truncate-end">
            無法執行({r.status}):{r.reason || '事前檢查未通過'}
          </Text>,
        )
      }
      if (!busy[row.id]) {
        buttons.push(<Button key={`dismiss:${row.id}`} label="撤單" dimColor onPress={() => void dismissTicket($, row.id).catch(() => {})} />)
      }
      out.push(<Box key={`buttons:${row.id}`}>{buttons}</Box>)
    }

    if (cands.length > 0) {
      out.push(<Text key="cands" dimColor>可簽發(worktree 裡可快轉進 {defaultTarget} 的分支):</Text>)
      for (const c of cands) {
        out.push(
          <Button
            key={`issue:${c.branch}`}
            label={`簽發 ${c.branch}(${short(c.sha)})→ ${c.target}`}
            dimColor
            onPress={() => void issueFromPane($, c.branch, c.target).catch(() => {})}
          />,
        )
      }
    }

    return (
      <Box flexDirection="column">
        {out}
        <Box>
          <Button key="refresh" label="重新檢查" onPress={() => refresh($)} />
          <Button key="close" label="關閉" role="dismiss" onPress={() => $.ui.close({ id: PANE }).catch(() => {})} />
        </Box>
      </Box>
    )
  })
Licence text (MIT)
MIT License

Copyright (c) 2026 Hangghost

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.

What its code calls

runs programswrites filestool callsremembers

What its code shows

Read from the source at commit 9474525ae456 on 2026-10-06. The first group decides whether a mod is listed; the rest is for you to weigh. A later commit is not read until the next crawl.

Decides the listing: code you can check
Entry readEvery module hooks/hooks.json names was read.plugins/handoff-runner/hooks/register.tsx
ParsesEvery file parses as TypeScript or JavaScript.3 files parsed
All its code is in the modEvery import is a file of the mod or the engine's own module; no packages, no require.all its code is in the mod
ReadableNo minified lines, no eval or new Function, no import of a computed path, no encoded blobs.no minified code, no eval, no encoded blobs
Calls in the openNetwork and programs are reached as $.http.fetch and $.process.run in place, never passed around.every call outside goes through $ in the open
For you to weigh before installing
Where it drawsThe terminal, the desktop app, both, or nothing (hooks only: a guard or a prompt rewriter), as its code says. Shown, never a reason to leave a mod out.draws in the terminal and the desktop app, the same in both
Install lineWhether its repository's own .claude-plugin/marketplace.json lists it, so it installs from that marketplace with the lines on its page.listed in its repository's .claude-plugin/marketplace.json: installs from there
Programs on WindowsWhether every program it starts through $.process exists on Windows (tail, date, open, osascript, /usr/… do not).plugins/handoff-runner/hooks/register.tsx:62 mkdir (not on Windows)
NetworkWhether every fetch names its https host in the code.no network
ProgramsWhether every program it starts is named in the code and is not a shell, an interpreter or a network tool.plugins/handoff-runner/hooks/register.tsx:154 a program named at run time
Reads and sendsWhether it both reads files or environment variables and reaches the network.reads files and reaches the network
Keys in the sourceWhether the source holds what looks like an API key or a private key.no keys in the source
LicenceAn open licence (MIT, Apache-2.0, BSD, ISC, Unlicense, 0BSD, CC0) with its text lets modscode show its code; otherwise the code is linked.MIT

This is a reading of the code text, not a security review: it does not run the mod, and it cannot see what a program the mod starts does. The check before installing is yours. How mods are chosen

Install it

Check it yourself before you install it. Mods run unsandboxed, with your permissions, and modscode does not vouch for what this code does. Read the code below (or run claude plugin validate . in its folder), weigh what it reaches, and install the commit you read.

Its repository is its marketplace. Add that marketplace (in the terminal with these commands, or in the desktop app's plugin settings) and install the mod from it:

/plugin marketplace add Hangghost/learning-hacker-claude-mod
/plugin install handoff-runner@learning-hacker-claude-mod

This installs the marketplace's latest commit, which may not be the one read here (9474525ae456). Compare them before you install.

Ask Claude about it

With the modscode connector added, Claude can read this design, what its code reaches and its code, and build on them. Ask it like this:

Read the modscode design "hangghost-handoff-runner" with its code and make me a pane like it

Search them from Claude: the MCP connector

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