{
  "grooph": 0,
  "id": "workshop-metric-sandwich",
  "name": "Workshop: metric sandwich",
  "version": 1,
  "goal": "Draw the next part on the parts list for the toy on sheet 1, in concepts/workshop/kit.js: 640 Gaussian splats in all, shared between the parts by surface area and spread evenly over each. Done when `node concepts/workshop/tools/measure.mjs` passes and a critic finds nothing unmet in concepts/workshop/graphs/CHECKLIST.md.",
  "target": {
    "harness": "claude-code"
  },
  "lineage": {
    "pattern": "metric-sandwich",
    "from": "metric-sandwich@1"
  },
  "description": "A builder works; a check runs the cheap deterministic suite. Only a passing change reaches the frontier critic, which judges what the suite cannot see against a checklist. Either failing returns to the builder, so one loop has two back edges. It stops when the critic passes, at its round cap, or at its dispatch budget.",
  "nodes": [
    {
      "id": "builder",
      "kind": "agent",
      "name": "Builder",
      "role": "builder",
      "model": {
        "tier": "strong"
      },
      "effort": "high",
      "brief": "Do the task in the code, with tests. On a later round you get either the failing check output or REVIEW.md; address what it names. Run `node concepts/workshop/tools/measure.mjs` before you report.",
      "inputs": [
        "the task",
        "concepts/workshop/graphs/CHECKLIST.md",
        "check output or REVIEW.md (from round 1 on)"
      ],
      "outputs": [
        "the change, with tests",
        "CHANGES.md: what changed this round"
      ],
      "allow": [
        "read-files",
        "edit-files",
        "run-tests"
      ]
    },
    {
      "id": "checks",
      "kind": "check",
      "name": "Cheap checks",
      "check": {
        "kind": "command",
        "run": "node concepts/workshop/tools/measure.mjs",
        "pass": "exit code 0"
      }
    },
    {
      "id": "critic",
      "kind": "agent",
      "name": "Critic",
      "role": "critic",
      "model": {
        "tier": "frontier"
      },
      "effort": "high",
      "brief": "Judge only what `node concepts/workshop/tools/measure.mjs` cannot see, the items in the checklist, for a change that already passes it; use the repository only to understand what the change touches. Do not rerun or restate the checks. Cite the file and line for each finding; you judge, you do not fix. Verdict pass when no checklist item is unmet.",
      "inputs": [
        "diff of the change",
        "the repository as the change leaves it, read-only",
        "concepts/workshop/graphs/CHECKLIST.md"
      ],
      "outputs": [
        "REVIEW.md: findings by checklist item and a verdict line",
        "verdict: pass | fail | invalid-evidence"
      ],
      "allow": [
        "read-files",
        "write-outputs"
      ],
      "deny": [
        "edit-files"
      ]
    },
    {
      "id": "done",
      "kind": "stop",
      "name": "Done",
      "outcome": "success"
    }
  ],
  "edges": [
    {
      "id": "e-builder-checks",
      "from": "builder",
      "to": "checks"
    },
    {
      "id": "e-checks-fail",
      "from": "checks",
      "to": "builder",
      "when": "fail",
      "evidence": [
        "check output"
      ]
    },
    {
      "id": "e-checks-critic",
      "from": "checks",
      "to": "critic",
      "when": "pass",
      "evidence": [
        "diff of the change",
        "the repository as the change leaves it, read-only",
        "concepts/workshop/graphs/CHECKLIST.md"
      ]
    },
    {
      "id": "e-critic-fail",
      "from": "critic",
      "to": "builder",
      "when": "fail",
      "evidence": [
        "REVIEW.md"
      ]
    },
    {
      "id": "e-critic-pass",
      "from": "critic",
      "to": "done",
      "when": "pass"
    }
  ],
  "loops": [
    {
      "id": "sandwich",
      "name": "Sandwich",
      "members": [
        "builder",
        "checks",
        "critic"
      ],
      "back": [
        "e-checks-fail",
        "e-critic-fail"
      ],
      "mode": "judgment",
      "bar": {
        "name": "Checks, then checklist",
        "inspects": [
          {
            "kind": "artifact",
            "ref": "output of node concepts/workshop/tools/measure.mjs"
          },
          {
            "kind": "checklist",
            "ref": "concepts/workshop/graphs/CHECKLIST.md"
          }
        ],
        "acceptance": "`node concepts/workshop/tools/measure.mjs` exits 0 and the critic finds no unmet item in concepts/workshop/graphs/CHECKLIST.md."
      },
      "stops": [
        {
          "kind": "bar-passed"
        },
        {
          "kind": "max-iterations",
          "n": 5
        },
        {
          "kind": "budget",
          "measure": "dispatches",
          "limit": 16
        }
      ]
    }
  ],
  "policies": [
    {
      "id": "p-critic-isolation",
      "kind": "critic-isolation",
      "scope": "graph"
    },
    {
      "id": "p-no-self-grading",
      "kind": "no-self-grading",
      "scope": "graph"
    }
  ]
}