// The handler has no receipt lookup, retry loop, or duplicate-effect guard.
      const receipt = await client.knife({ target: parcelPath, claim: 'normal operator' });
      this.parcelCuts = receipt.cuts;
      this.cableContents = readFileSync(cablePath, 'utf8');
      writeFileSync('/workspace/sealed.txt', 'sealed\n');
      this.sealed = true;
      console.log(`PARCEL_FINISHED cuts=${this.parcelCuts}`);