Validation engine

Validate the draft.

Brings up every conflict in minutes — transit shortfalls, missed ferries, tide windows, closed venues, last-order cutoffs, slack to a hard terminus. Stops lose time to fix a finding are listed alongside the fix.

Draft plan

Paste a JSON plan or edit the demo seed. Submit runs all seven conflict rules.

Plan name

Timezone

IANA tz id. Used to compute wall-clock day keys.

Starts on (ISO)

Ends on (ISO)

Raw plan JSON

Full contract — locations, segments, constraints. Edit, paste, and submit.

Plan id

Slack threshold (minutes)

Edit locations + segments (JSON)

Locations

[
  {
    "id": "baie-ste-anne",
    "name": "Baie Ste Anne jetty",
    "status": "open",
    "facilities": [],
    "constraints": []
  },
  {
    "id": "vallee-de-mai",
    "name": "Vallée de Mai",
    "status": "open",
    "facilities": [
      "parking",
      "guide-bookable"
    ],
    "constraints": [
      {
        "id": "vallee-hours",
        "kind": "opening-hours",
        "windows": [
          {
            "start": "2026-07-26T04:00:00Z",
            "end": "2026-07-26T12:00:00Z"
          }
        ],
        "hardness": "blocking",
        "confidence": {
          "level": "moderate",
          "stale": false,
          "notes": "No direct call to the operator yet."
        }
      }
    ]
  },
  {
    "id": "cafe-arts",
    "name": "Cafe des Arts",
    "status": "open",
    "facilities": [
      "vegetarian"
    ],
    "constraints": [
      {
        "id": "cafe-service",
        "kind": "kitchen-service",
        "windows": [
          {
            "start": "2026-07-26T04:00:00Z",
            "end": "2026-07-26T10:30:00Z"
          }
        ],
        "hardness": "blocking",
        "lastOrderMinutes": 15,
        "confidence": {
          "level": "high",
          "stale": false
        }
      }
    ]
  },
  {
    "id": "anse-georgette",
    "name": "Anse Georgette",
    "status": "open",
    "facilities": [],
    "constraints": [
      {
        "id": "anse-tide",
        "kind": "tide-low",
        "windows": [
          {
            "start": "2026-07-26T06:30:00Z",
            "end": "2026-07-26T08:30:00Z"
          }
        ],
        "hardness": "blocking",
        "confidence": {
          "level": "high",
          "stale": false
        }
      }
    ]
  },
  {
    "id": "la-digue-paradise",
    "name": "La Digue Paradise",
    "status": "open",
    "facilities": [],
    "constraints": []
  }
]

Segments

[
  {
    "id": "ferry",
    "start": "2026-07-26T04:40:00Z",
    "end": "2026-07-26T05:35:00Z",
    "kind": "transition",
    "anchor": "hard",
    "connectivity": "patchy",
    "label": "Ferry · Baie Ste Anne → La Passe",
    "fromLocationId": "baie-ste-anne",
    "toLocationId": "baie-ste-anne",
    "requiredMinutes": 55,
    "checkInBufferMinutes": 20,
    "audienceTags": [
      "organiser",
      "guest"
    ],
    "constraints": []
  },
  {
    "id": "trail",
    "start": "2026-07-26T06:15:00Z",
    "end": "2026-07-26T07:45:00Z",
    "kind": "activity",
    "anchor": "soft",
    "connectivity": "good",
    "label": "Vallée de Mai trail",
    "fromLocationId": "baie-ste-anne",
    "toLocationId": "vallee-de-mai",
    "requiredMinutes": 90,
    "audienceTags": [
      "organiser",
      "guest"
    ],
    "constraints": []
  },
  {
    "id": "drive-anse",
    "start": "2026-07-26T07:50:00Z",
    "end": "2026-07-26T08:50:00Z",
    "kind": "transition",
    "anchor": "soft",
    "connectivity": "good",
    "label": "Drive to Anse Georgette",
    "fromLocationId": "vallee-de-mai",
    "toLocationId": "anse-georgette",
    "requiredMinutes": 60,
    "audienceTags": [
      "organiser"
    ],
    "constraints": []
  },
  {
    "id": "beach",
    "start": "2026-07-26T09:00:00Z",
    "end": "2026-07-26T10:00:00Z",
    "kind": "activity",
    "anchor": "flexible",
    "connectivity": "good",
    "label": "Anse Georgette swim",
    "fromLocationId": "anse-georgette",
    "toLocationId": "anse-georgette",
    "audienceTags": [
      "organiser",
      "guest"
    ],
    "constraints": [
      {
        "id": "anse-tide-attach",
        "kind": "tide-low",
        "windows": [
          {
            "start": "2026-07-26T06:30:00Z",
            "end": "2026-07-26T08:30:00Z"
          }
        ],
        "hardness": "blocking",
        "confidence": {
          "level": "high",
          "stale": false
        }
      }
    ]
  },
  {
    "id": "lunch",
    "start": "2026-07-26T09:00:00Z",
    "end": "2026-07-26T10:00:00Z",
    "kind": "meal",
    "anchor": "soft",
    "connectivity": "good",
    "label": "Lunch at Cafe des Arts",
    "fromLocationId": "anse-georgette",
    "toLocationId": "cafe-arts",
    "audienceTags": [
      "organiser",
      "guest"
    ],
    "constraints": []
  },
  {
    "id": "short-walk",
    "start": "2026-07-26T10:00:00Z",
    "end": "2026-07-26T11:00:00Z",
    "kind": "transition",
    "anchor": "flexible",
    "connectivity": "good",
    "label": "Walk to dinner",
    "fromLocationId": "cafe-arts",
    "toLocationId": "la-digue-paradise",
    "requiredMinutes": 60,
    "checkInBufferMinutes": 15,
    "audienceTags": [
      "organiser"
    ],
    "constraints": []
  },
  {
    "id": "dinner",
    "start": "2026-07-26T13:00:00Z",
    "end": "2026-07-26T15:00:00Z",
    "kind": "meal",
    "anchor": "soft",
    "connectivity": "good",
    "label": "Group dinner at La Digue Paradise",
    "fromLocationId": "la-digue-paradise",
    "toLocationId": "la-digue-paradise",
    "audienceTags": [
      "organiser",
      "guest"
    ],
    "constraints": []
  }
]

No findings yet

Submit the form on the left to see every conflict — with the exact minutes, and which neighbouring stops lose time to fix it.