HaikuBot

haiku.ts

import type { FlueContext } from '@flue/sdk/client';
   import { Bash, InMemoryFs } from 'just-bash';
   import * as v from 'valibot';

   export const triggers = { webhook: true };

   export default async function ({ init, payload }: FlueContext) {
      const fs = new InMemoryFs();
      const sandbox = () => new Bash({ fs, cwd: '/workspace' });

      const agent = await init({
         sandbox,
         cwd: '/workspace',
         model: 'anthropic/claude-haiku-4-5',
      });
      const session = await agent.session();

      const seed = crypto.randomUUID();
      await session.shell(`mkdir -p /workspace/haiku && printf
 ${JSON.stringify(seed)} > /workspace/haiku/seed.txt`);

      return await session.prompt(
         `Write a fresh original haiku.

   Theme: ${payload.theme ?? 'the present moment'}
   Random seed: ${seed}

   Rules:
   - Exactly 3 lines.
   - Aim for a 5-7-5 syllable feel.
   - Do not reuse previous wording.
   - Return only the structured result.`,
         {
            result: v.object({
               theme: v.string(),
               haiku: v.array(v.string()),
               note: v.string(),
            }),
         },
      );
   }