cache-shot-clock

import type { Register } from 'claude-code'

// Drawn like cache-shot-clock by CJ Avilla (band, toast), as modscode read it from the mod's code:
// https://modscode.com/gallery/cjavdev-cache-shot-clock/
// 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 row = '…'
    const row2 = '…'
    const row3 = '…'
    const fmtAgo = '…'
    const tokens = '…'
    const ttlLabel = '…'
    return (
      <Box flexDirection="column">
        <Box>
          <Box borderStyle="bold" borderColor="#444444" backgroundColor="#000000" flexDirection="column" paddingX={1}>
            <Text color="#7a1010" backgroundColor="#000000" bold>
              {row}
            </Text>
            <Text color="#7a1010" backgroundColor="#000000" bold>
              {row2}
            </Text>
            <Text color="#7a1010" backgroundColor="#000000" bold>
              {row3}
            </Text>
          </Box>
          <Box flexDirection="column" paddingLeft={2} paddingTop={1}>
            <Text color="#ff3030" bold>
              SHOT CLOCK VIOLATION
            </Text>
            <Text dimColor>
              {`Prompt cache cold for ${fmtAgo}`}
            </Text>
            <Text dimColor>
              {`Next turn re-writes ${tokens} tokens (${ttlLabel})`}
            </Text>
          </Box>
        </Box>
        {await next(e)}
      </Box>
    )
  })

  on('session.start', async ($, e, next) => {
    const fmtClock = '…'
    const compact = '…'
    await $.ui.toast(`Shot clock: ${fmtClock} left on the prompt cache (${compact} tokens)`)
    await $.ui.toast(`BZZZT! Shot clock violation: the prompt cache expired. The next turn re-writes ${compact} tokens.`)
    return next(e)
  })
}