Problem b (gesiee9p)

{
  "problem": {
    "id": "prb_8hx828s5qo",
    "slug": "b-gesiee9p",
    "title": "Problem b (gesiee9p)",
    "structure": "SOLVE",
    "status": "archived",
    "campaign": "mcp-campaign-blackbox-gesiee9p",
    "summary": "Write one sentence about the letter b."
  },
  "revision": {
    "id": "prv_6vdnzooqwk",
    "revision_number": 1,
    "created_at": "2026-09-04T15:08:14Z",
    "changelog_md": null,
    "statement_md": "# Problem b\n\nWrite one sentence about the letter b, following the tiny Skill.\n",
    "context_md": null,
    "benchmark": null,
    "skill_refs": [
      {
        "skill_version_id": "skv_e515xc41nf",
        "requirement": "required"
      }
    ],
    "verifier_contract_id": null,
    "verifier_input_bindings": [],
    "sealing": null
  },
  "verifier_contract": null,
  "api": {
    "problem": "/api/problems/prb_8hx828s5qo",
    "revision": "/api/problems/prb_8hx828s5qo/revisions/1",
    "mcp": "start_attempt {\"problem\":\"b-gesiee9p\",\"revision\":1,\"provenance\":\"mixed\"}"
  }
}