codex-flow by Eason412: Claude Code mod code and design

What it does

Draws a band above the prompt, toasts
Adds /flow
Hooks session.start, turn.complete, turn.start, ui.focus
Keeps its own state between turns
Starts processes

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)

import type { Register } from 'claude-code'

// Drawn like codex-flow by Eason412 (band, toast), as modscode read it from the mod's code:
// https://modscode.com/gallery/eason412-codex-flow/
// 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, Button } = $.ui.resolve(e)
    const name = '…'
    const part = '…'
    const part2 = '…'
    const part3 = '…'
    const right = '…'
    const spinner = '…'
    const part4 = '…'
    const part5 = '…'
    const part6 = '…'
    const formatDuration = '…'
    const spinner2 = '…'
    const part7 = '…'
    const part8 = '…'
    const part9 = '…'
    const formatDuration2 = '…'
    const spinner3 = '…'
    const part10 = '…'
    const part11 = '…'
    const part12 = '…'
    const formatDuration3 = '…'
    const label = '…'
    const label2 = '…'
    return (
      <Box flexDirection="column">
        <Box>
          <Text>
            {"╭─ "}
          </Text>
          <Text bold>
            {name}
          </Text>
          <Text color="#E0AF68">
            ⚡
          </Text>
          <Text dimColor>
            {part}
          </Text>
          <Text color="#E0AF68">
            ⚡
          </Text>
          <Text dimColor>
            {part2}
          </Text>
          <Text color="#E0AF68">
            ⚡
          </Text>
          <Text dimColor>
            {part3}
          </Text>
          <Text>
            {" "}
            ────────
          </Text>
          <Text dimColor>
            {right}
          </Text>
          <Text>
            ─╮
          </Text>
        </Box>
        <Box>
          <Box flexDirection="column">
            <Text>
              {"│ "}
            </Text>
          </Box>
          <Box flexDirection="column">
            <Box flexDirection="column">
              <Box>
                <Text color="#7AA2F7">
                  {"❯ "}
                </Text>
                <Text color="#7AA2F7">
                  {spinner}
                </Text>
                <Text>
                  {" "}
                </Text>
                <Box width={6}>
                  <Text>
                    read
                  </Text>
                </Box>
                <Box>
                  <Button plain label={`${name}`} />
                </Box>
                <Box>
                  <Text color="#E0AF68">
                    ⚡
                  </Text>
                  <Text dimColor>
                    {part4}
                  </Text>
                  <Text color="#E0AF68">
                    ⚡
                  </Text>
                  <Text dimColor>
                    {part5}
                  </Text>
                  <Text color="#E0AF68">
                    ⚡
                  </Text>
                  <Text dimColor>
                    {part6}
                  </Text>
                </Box>
                <Box width={7} justifyContent="flex-end">
                  <Text dimColor>
                    {formatDuration}
                  </Text>
                </Box>
              </Box>
              <Box>
                <Text color="#7AA2F7">
                  {"❯ "}
                </Text>
                <Text color="#7AA2F7">
                  {spinner2}
                </Text>
                <Text>
                  {" "}
                </Text>
                <Box width={6}>
                  <Text>
                    read
                  </Text>
                </Box>
                <Box>
                  <Button plain label={`${name}`} />
                </Box>
                <Box>
                  <Text color="#E0AF68">
                    ⚡
                  </Text>
                  <Text dimColor>
                    {part7}
                  </Text>
                  <Text color="#E0AF68">
                    ⚡
                  </Text>
                  <Text dimColor>
                    {part8}
                  </Text>
                  <Text color="#E0AF68">
                    ⚡
                  </Text>
                  <Text dimColor>
                    {part9}
                  </Text>
                </Box>
                <Box width={7} justifyContent="flex-end">
                  <Text dimColor>
                    {formatDuration2}
                  </Text>
                </Box>
              </Box>
              <Box>
                <Text color="#7AA2F7">
                  {"❯ "}
                </Text>
                <Text color="#7AA2F7">
                  {spinner3}
                </Text>
                <Text>
                  {" "}
                </Text>
                <Box width={6}>
                  <Text>
                    read
                  </Text>
                </Box>
                <Box>
                  <Button plain label={`${name}`} />
                </Box>
                <Box>
                  <Text color="#E0AF68">
                    ⚡
                  </Text>
                  <Text dimColor>
                    {part10}
                  </Text>
                  <Text color="#E0AF68">
                    ⚡
                  </Text>
                  <Text dimColor>
                    {part11}
                  </Text>
                  <Text color="#E0AF68">
                    ⚡
                  </Text>
                  <Text dimColor>
                    {part12}
                  </Text>
                </Box>
                <Box width={7} justifyContent="flex-end">
                  <Text dimColor>
                    {formatDuration3}
                  </Text>
                </Box>
              </Box>
              <Box>
                <Text dimColor wrap="truncate-end">
                  {label}
                </Text>
                <Text dimColor>
                  {" · "}
                </Text>
                <Text dimColor wrap="truncate-end">
                  {label2}
                </Text>
              </Box>
            </Box>
            <Text>
              {" "}
            </Text>
          </Box>
          <Box flexDirection="column">
            <Text>
              {" │"}
            </Text>
          </Box>
        </Box>
        <Box>
          <Text>
            {"╰─ "}
          </Text>
          <Text>
            {" "}
            ────────
            ─╯
          </Text>
        </Box>
        {await next(e)}
      </Box>
    )
  })

  on('session.start', async ($, e, next) => {
    const label = '…'
    await $.ui.toast(`「${label}」不在运行`)
    await $.ui.toast(`已请求停止「${label}」`)
    return next(e)
  })
}

The mod's own code

Its licence text was not found at the commit read, so only the places in the source are linked.

What its code calls

runs programswrites filesenv varsdrives Clauderemembers

What its code shows

Read from the source at commit 944f54cda27f 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 read	Every module hooks/hooks.json names was read.mod/hooks/register.tsx
Parses	Every file parses as TypeScript or JavaScript.10 files parsed
All its code is in the mod	Every import is a file of the mod or the engine's own module; no packages, no require.all its code is in the mod
Readable	No 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 open	Network 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 draws	The 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 line	Whether its repository's own .claude-plugin/marketplace.json lists it, so it installs from that marketplace with the lines on its page.its repository's .claude-plugin/marketplace.json does not list it: no install line to give
Programs on Windows	Whether every program it starts through $.process exists on Windows (tail, date, open, osascript, /usr/… do not).mod/hooks/register.tsx:71 ps (not on Windows); mod/hooks/register.tsx:226 pkill (not on Windows); mod/hooks/register.tsx:242 kill (not on Windows)
Network	Whether every fetch names its https host in the code.no network
Programs	Whether every program it starts is named in the code and is not a shell, an interpreter or a network tool.ps, pkill, kill
Reads and sends	Whether it both reads files or environment variables and reaches the network.reaches no network
Keys in the source	Whether the source holds what looks like an API key or a private key.no keys in the source
Licence	An open licence (MIT, Apache-2.0, BSD, ISC, Unlicense, 0BSD, CC0) with its text lets modscode show its code; otherwise the code is linked.no licence

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's .claude-plugin/marketplace.json does not list it, so there is no install line to give. Read it as code, or follow its author's README.

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 "eason412-codex-flow" with its code and make me a pane like it

Search them from Claude: the MCP connector