{
  "argumentSchema": {
    "$defs": {
      "TopicAuthor": {
        "properties": {
          "avatar": {
            "type": "string"
          },
          "kind": {
            "description": "Open for the same reason `TopicLinkKind` is: this is provided data, so a\nclosed set here could never gain `\"service\"` or whatever acts next.\nWell-known values are `\"person\"` and `\"agent\"`, the latter marking an\nagent acting with its human user's key.",
            "type": "string"
          },
          "name": {
            "type": "string"
          }
        },
        "required": [
          "kind",
          "name"
        ],
        "type": "object"
      },
      "TopicDemand": {
        "properties": {
          "$NAME": {
            "default": "",
            "description": "The display name, which the board publishes onward as each topic's\n`mentionable` entry — and `cf-code-editor` requires it there. Dropping it\ncosts no type error and silently empties every `@`-mention completion.",
            "type": [
              "string",
              "undefined"
            ]
          },
          "body": {
            "default": "",
            "type": "string"
          },
          "commentCount": {
            "default": 0,
            "type": [
              "number",
              "undefined"
            ]
          },
          "createdAt": {
            "description": "When the topic was filed (epoch milliseconds), stamped at create.",
            "type": "number"
          },
          "createdBy": {
            "anyOf": [
              {
                "$ref": "#/$defs/TopicAuthor"
              },
              {
                "type": "undefined"
              }
            ],
            "default": {
              "kind": "person",
              "name": ""
            }
          },
          "lastActivityAt": {
            "default": 0,
            "type": [
              "number",
              "undefined"
            ]
          },
          "mentions": {
            "default": [],
            "items": {
              "type": "unknown"
            },
            "type": "array"
          },
          "title": {
            "default": "",
            "description": "The topic's title. Defaulted rather than required, like every other\nfield a board card renders: the card list is a mapped sub-pattern, so\nthis type reaches a piece holding topics written before the field\nexisted as the argument schema its update is checked against, and a\nrequired property those topics lack refuses that update outright.\n`deno task pattern-vintage` is what catches it, by replaying a real\ndeployed board.",
            "type": "string"
          }
        },
        "required": [
          "body",
          "mentions",
          "$NAME",
          "title",
          "createdAt",
          "commentCount",
          "lastActivityAt"
        ],
        "type": "object"
      }
    },
    "properties": {
      "topics": {
        "asCell": [
          "cell"
        ],
        "default": [],
        "description": "The board's durable topic list. `addTopic` appends here; direct writes\nare legitimate but unattributed, and a whole-array write forfeits the\nmergeability the verb's append keeps.",
        "items": {
          "$ref": "#/$defs/TopicDemand"
        },
        "type": "array"
      }
    },
    "type": "object"
  },
  "pattern": "topics/main.tsx",
  "resultSchema": {
    "$defs": {
      "AddTopicEvent": {
        "properties": {
          "agentName": {
            "description": "The agent making this mutation. The authenticated principal remains the\nhuman whose identity key invoked the stream; this is the agent's explicit\ncontent-level signature under that shared principal.\n\nRequired, for the reason given on `AgentAuthoredEvent`: acceptance widens\ncompatibly and narrows only through a break, so tolerating an unsigned\ncreate is a tolerance that could never be withdrawn.",
            "type": "string"
          },
          "body": {
            "description": "The topic's initial living-document body. A topic born with a body\nappears with it atomically — no reader observes the title-only halfway\nstate, and no follow-up `setBody` call is needed to finish a create\n(verb contract: the atomic-unit rule).",
            "type": "string"
          },
          "title": {
            "description": "The topic's title, trimmed before it is stored. Must be non-empty.",
            "type": "string"
          }
        },
        "required": [
          "title",
          "agentName"
        ],
        "type": "object"
      },
      "TopicAuthor": {
        "properties": {
          "avatar": {
            "type": "string"
          },
          "kind": {
            "description": "Open for the same reason `TopicLinkKind` is: this is provided data, so a\nclosed set here could never gain `\"service\"` or whatever acts next.\nWell-known values are `\"person\"` and `\"agent\"`, the latter marking an\nagent acting with its human user's key.",
            "type": "string"
          },
          "name": {
            "type": "string"
          }
        },
        "required": [
          "kind",
          "name"
        ],
        "type": "object"
      },
      "TopicCrossrefRow": {
        "properties": {
          "mentionedBy": {
            "items": {
              "type": "unknown"
            },
            "type": "array"
          },
          "topic": {
            "description": "The topic this row is about. `unknown` because it is written as a\nreference and only ever compared — `equals` takes the raw link. Anything\nwider retrieves the piece instead of pointing at it: declared `object`,\nthis field reads back as the whole expanded topic, `$UI` tree included.",
            "type": "unknown"
          }
        },
        "required": [
          "topic",
          "mentionedBy"
        ],
        "type": "object"
      },
      "TopicDemand": {
        "properties": {
          "$NAME": {
            "default": "",
            "description": "The display name, which the board publishes onward as each topic's\n`mentionable` entry — and `cf-code-editor` requires it there. Dropping it\ncosts no type error and silently empties every `@`-mention completion.",
            "type": [
              "string",
              "undefined"
            ]
          },
          "body": {
            "default": "",
            "type": "string"
          },
          "commentCount": {
            "default": 0,
            "type": [
              "number",
              "undefined"
            ]
          },
          "createdAt": {
            "description": "When the topic was filed (epoch milliseconds), stamped at create.",
            "type": "number"
          },
          "createdBy": {
            "anyOf": [
              {
                "$ref": "#/$defs/TopicAuthor"
              },
              {
                "type": "undefined"
              }
            ],
            "default": {
              "kind": "person",
              "name": ""
            }
          },
          "lastActivityAt": {
            "default": 0,
            "type": [
              "number",
              "undefined"
            ]
          },
          "mentions": {
            "default": [],
            "items": {
              "type": "unknown"
            },
            "type": "array"
          },
          "title": {
            "default": "",
            "description": "The topic's title. Defaulted rather than required, like every other\nfield a board card renders: the card list is a mapped sub-pattern, so\nthis type reaches a piece holding topics written before the field\nexisted as the argument schema its update is checked against, and a\nrequired property those topics lack refuses that update outright.\n`deno task pattern-vintage` is what catches it, by replaying a real\ndeployed board.",
            "type": "string"
          }
        },
        "required": [
          "body",
          "mentions",
          "$NAME",
          "title",
          "createdAt",
          "commentCount",
          "lastActivityAt"
        ],
        "type": "object"
      },
      "TopicIndexRow": {
        "properties": {
          "commentCount": {
            "default": 0,
            "description": "Coalesced to 0 for a cold or older topic whose derived path is absent,\nso the row itself never carries the mixed-version undefined.",
            "type": [
              "number",
              "undefined"
            ]
          },
          "createdAt": {
            "type": "number"
          },
          "createdBy": {
            "anyOf": [
              {
                "$ref": "#/$defs/TopicAuthor"
              },
              {
                "type": "undefined"
              }
            ],
            "default": {
              "kind": "person",
              "name": ""
            },
            "description": "Who filed the topic. A topic written without structured authorship\nmaterializes the declared default — the inert legacy sentinel\n`{ kind: \"person\", name: \"\" }` — so a blank name here means \"unsigned\",\nand there is nothing further to consult: the display-name mirror this\nonce pointed at is retired, and `topicAuthorLabel` renders the sentinel\nas `someone`."
          },
          "lastActivityAt": {
            "default": 0,
            "type": [
              "number",
              "undefined"
            ]
          },
          "title": {
            "type": "string"
          }
        },
        "required": [
          "title",
          "createdAt",
          "commentCount",
          "lastActivityAt"
        ],
        "type": "object"
      }
    },
    "description": "Topics — a tracker over #topic pieces: durable units of shared attention\n(CT-1878). Deliberately minimal: no statuses, labels, or assignees; topics\nsort by last activity. Replaces Linear / GitHub issues / loose process docs\nfor the team; PR workflows stay in GitHub and arrive here as links.\n\nHeadless use: survey the whole board with one bounded read of `index` — a\nrow IS its topic, so a row's own address (`--select index[].@`) is what\nthat topic's reads and verbs take as the piece. File with `addTopic`,\ntitle and optional initial body in one call, then work on the topic\ndirectly: the body is its living document, the thread its append-only\ndeliberation. Sign every mutation with `agentName` — Fabric records the\nhuman principal behind the key; the name says which agent acted under it.",
    "properties": {
      "$NAME": {
        "type": "string"
      },
      "$UI": {
        "$ref": "https://commonfabric.org/schemas/vnode.json"
      },
      "addTopic": {
        "$ref": "#/$defs/AddTopicEvent",
        "asCell": [
          "stream"
        ],
        "description": "File a topic. The atomic unit takes the initial body with the title, so\nno reader observes a title-only halfway state and no follow-up `setBody`\nfinishes a create. Returns the created topic as its survey row — the\nreference plus the write-time facts the pattern resolved."
      },
      "crossrefs": {
        "default": [],
        "description": "The board's mention pivot, one row per topic: the topic, and the topics\nthat mention it. Published so a topic composed outside `addTopic` can be\nwired to the same table the board's own children read — the graph is\nderived once, here, and never per topic.",
        "items": {
          "$ref": "#/$defs/TopicCrossrefRow"
        },
        "type": "array"
      },
      "index": {
        "default": [],
        "description": "The full-board survey surface: one bounded row per topic, carrying the\nscalars a survey reads. A row IS its topic, so a row's own address is the\ntopic's — `--select index[].@` reads it, and an index into this array is\nnot a stable address.",
        "items": {
          "$ref": "#/$defs/TopicIndexRow"
        },
        "type": "array"
      },
      "mentionable": {
        "default": [],
        "description": "The same list, under the name the topic pattern's editor autocompletes\nover — what `addTopic` wires into each child as its mention universe.",
        "items": {
          "$ref": "#/$defs/TopicDemand"
        },
        "type": "array"
      },
      "newTitle": {
        "description": "Session-local draft for the footer composer (exposed for embedding and\nheadless driving, like the chat exemplar's drafts).",
        "type": "string"
      },
      "submitTopic": {
        "asCell": [
          "stream",
          "opaque"
        ],
        "description": "Submit the footer composer as the current viewer's canonical Profile.",
        "tier": "wrapper"
      },
      "topicCount": {
        "description": "How many topics the board holds, nulls included.",
        "type": "number"
      },
      "topics": {
        "description": "The board's topics, in filing order, through the shape the board demands\nof them: the display scalars and the mention universe, and no verbs. A\ncaller that means to mutate a topic addresses the topic itself, where its\nown schema governs. Survey through `index` instead; read this when you\nalready know which topic you are expanding.",
        "items": {
          "$ref": "#/$defs/TopicDemand"
        },
        "type": "array"
      }
    },
    "required": [
      "topics",
      "mentionable",
      "topicCount",
      "crossrefs",
      "index",
      "addTopic",
      "submitTopic",
      "$NAME",
      "$UI"
    ],
    "tags": [
      "topic"
    ],
    "type": "object"
  }
}