{
  "argumentSchema": {
    "$defs": {
      "NamesMap": {
        "additionalProperties": {
          "type": "unknown"
        },
        "properties": {},
        "type": "object"
      },
      "TopicAuthor": {
        "properties": {
          "avatar": {
            "type": "string"
          },
          "kind": {
            "description": "Open for the same reason `TopicLinkKind` is: this is provided data, so a\nclosed set here could never gain `\"service\"` or whatever acts next.\nWell-known values are `\"person\"` and `\"agent\"`, the latter marking an\nagent acting with its human user's key. `\"legacy\"` records a display name\nwhose author kind is unknown.",
            "type": "string"
          },
          "name": {
            "type": "string"
          }
        },
        "required": [
          "kind",
          "name"
        ],
        "type": "object"
      },
      "TopicDemand": {
        "properties": {
          "$NAME": {
            "default": "",
            "description": "The display name, which the board's mention index copies into each\ntopic's row — the label every `@`-mention completion carries. The index\nlift states the same three-string demand for itself; this entry is the\nboard-level record of it.",
            "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"
          },
          "shortName": {
            "description": "The board's name for the topic, as the topic reads it out of the board's\nnames table and publishes it, which it does only while\n`SHOW_TOPIC_NUMBERS` in `./topic.tsx` is on. Where a topic publishes one,\nthe card renders it as a badge and the mention index copies it into the\ntopic's universe row, so `#42` matches without expanding a topic; where\nnone is published, the card shows no badge and the row carries the empty\nstring.\n\nOPTIONAL rather than defaulted, which is a fact about the compatibility\nproof: a defaulted property moves the demand's defaults below an array\nconstraint the proof cannot show stable under default insertion, while an\noptional one simply tolerates a topic that publishes none.\n\nA member's open producer contract allows any value at an undeclared\nproperty. Demanding a string there narrows that contract even when the\nproperty is optional, so `setsrc` requires an accepted compatibility\nbreak until the producer guarantees the string type. An optional\n`unknown` demand imposes no such restriction. A topic whose\nlookup has produced no value — one filed a moment ago, or one from before\nthe board numbered anything — is absent here rather than blank, and every\nconsumer treats the two the same.",
            "tags": [
              "42"
            ],
            "type": "string"
          },
          "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",
          "$NAME",
          "title",
          "createdAt",
          "commentCount",
          "lastActivityAt"
        ],
        "type": "object"
      }
    },
    "properties": {
      "names": {
        "$ref": "#/$defs/NamesMap",
        "asCell": [
          "cell"
        ],
        "default": {},
        "description": "The board's member namespace: each name to the topic it names, held as an\nunread reference. `addTopic` writes one key per create and `backfillNames`\none key per member it names; nothing rewrites the map whole. Reads as empty\non a board from before it numbered anything, in the default form `NamesMap`\nexplains."
      },
      "topics": {
        "asCell": [
          "cell"
        ],
        "default": [],
        "description": "The board's durable topic list. `addTopic` appends here; direct writes\nare legitimate but unattributed, and a whole-array write forfeits the\nmergeability the verb's append keeps.",
        "items": {
          "$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"
      },
      "BackfillNamesEvent": {
        "properties": {
          "agentName": {
            "description": "The agent running the backfill, checked as `addTopic` checks it.",
            "type": "string"
          }
        },
        "required": [
          "agentName"
        ],
        "type": "object"
      },
      "MentionableRow": {
        "properties": {
          "$NAME": {
            "type": "string"
          },
          "piece": {
            "type": "unknown"
          },
          "shortName": {
            "default": "",
            "type": "string"
          },
          "title": {
            "default": "",
            "type": "string"
          }
        },
        "required": [
          "title",
          "shortName",
          "piece",
          "$NAME"
        ],
        "type": "object"
      },
      "NamesMap": {
        "additionalProperties": {
          "type": "unknown"
        },
        "properties": {},
        "type": "object"
      },
      "NamesTableRow": {
        "properties": {
          "member": {
            "description": "The member. `unknown` because it is written as a reference and only ever\ncompared; anything wider would read the member back whole.",
            "type": "unknown"
          },
          "name": {
            "description": "The member's name.",
            "type": "string"
          }
        },
        "required": [
          "member",
          "name"
        ],
        "type": "object"
      },
      "NamingDeclaration": {
        "properties": {
          "compact": {
            "description": "Whether the collection offers the compact spelling that joins its name to\na member's with a hyphen. Only a collection whose member names cannot\ncontain a hyphen may say so.",
            "type": "boolean"
          },
          "name": {
            "description": "The collection's own name, which a binding uses to reach it. Absent when\nthe collection makes no claim about what it is bound as.",
            "type": "string"
          },
          "policy": {
            "$ref": "#/$defs/NamingPolicy",
            "description": "The policy the names are held to."
          }
        },
        "required": [
          "policy",
          "compact"
        ],
        "type": "object"
      },
      "NamingPolicy": {
        "properties": {
          "allocator": {
            "description": "What a name is made of: a monotonic sequence, a random code, a string a\nperson chose, or a derivation from the member's own content.",
            "enum": [
              "sequence",
              "random",
              "human",
              "derived"
            ]
          },
          "permanent": {
            "description": "Whether a name, once assigned, is never retired or reassigned.",
            "type": "boolean"
          },
          "reuse": {
            "description": "Whether a retired name may be given to another member.",
            "type": "boolean"
          },
          "unique": {
            "description": "Whether a name is unique across the collection's whole history, or only\namong its current members.",
            "enum": [
              "history",
              "current"
            ]
          }
        },
        "required": [
          "unique",
          "permanent",
          "reuse",
          "allocator"
        ],
        "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. `\"legacy\"` records a display name\nwhose author kind is unknown.",
            "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's mention index copies into each\ntopic's row — the label every `@`-mention completion carries. The index\nlift states the same three-string demand for itself; this entry is the\nboard-level record of it.",
            "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"
          },
          "shortName": {
            "description": "The board's name for the topic, as the topic reads it out of the board's\nnames table and publishes it, which it does only while\n`SHOW_TOPIC_NUMBERS` in `./topic.tsx` is on. Where a topic publishes one,\nthe card renders it as a badge and the mention index copies it into the\ntopic's universe row, so `#42` matches without expanding a topic; where\nnone is published, the card shows no badge and the row carries the empty\nstring.\n\nOPTIONAL rather than defaulted, which is a fact about the compatibility\nproof: a defaulted property moves the demand's defaults below an array\nconstraint the proof cannot show stable under default insertion, while an\noptional one simply tolerates a topic that publishes none.\n\nA member's open producer contract allows any value at an undeclared\nproperty. Demanding a string there narrows that contract even when the\nproperty is optional, so `setsrc` requires an accepted compatibility\nbreak until the producer guarantees the string type. An optional\n`unknown` demand imposes no such restriction. A topic whose\nlookup has produced no value — one filed a moment ago, or one from before\nthe board numbered anything — is absent here rather than blank, and every\nconsumer treats the two the same.",
            "tags": [
              "42"
            ],
            "type": "string"
          },
          "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 record without structured authorship materializes\nthe inert `{ kind: \"person\", name: \"\" }` default, which\n`topicAuthorLabel()` renders as `someone`."
          },
          "lastActivityAt": {
            "default": 0,
            "type": [
              "number",
              "undefined"
            ]
          },
          "shortName": {
            "description": "The board's name for the topic, as the topic publishes it, so absent for\nas long as a topic publishes none. Optional rather than defaulted, unlike\nthe two above, for the reason `TopicDemand.shortName` states.",
            "type": "string"
          },
          "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 select the row's own address alongside `title` and use\nthat canonical address as the piece for the Topic's reads and verbs.\nFile with `addTopic`, title and optional initial body in one call, then work\non the Topic directly: the body is its living document, the thread its\nappend-only deliberation. Sign every authored-content mutation with\n`agentName`; Fabric records the human principal behind the key, and the name\nsays which agent acted under it. Reference-only `mention` and `unmention`\ncalls carry no content signature.",
    "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."
      },
      "backfillNames": {
        "$ref": "#/$defs/BackfillNamesEvent",
        "asCell": [
          "stream"
        ],
        "description": "Name every unnamed member in filing order. Idempotent. A member filed\npast `addTopic` also needs a one-time link-bind of `namesTable` onto it\nbefore its row and its universe entry show the name, the same operator\nstep `mentionable` states for itself."
      },
      "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 board's mention universe, under the name the topic pattern's editor\nautocompletes over — what `addTopic` wires into each child. One derived\ndocument of copies, each holding its topic as an unread reference and\ncarrying what that topic publishes as its name: the number where a topic\npublishes one, and the empty string where it publishes none, which is\nevery topic while `SHOW_TOPIC_NUMBERS` in `./topic.tsx` is off. Copying\nrather than listing the topics themselves is what bounds the read: a\nreader of the universe expands no topic, and a `#42` query finds a member\n— wherever a name is published to find one by — without expanding one; see\n`MentionableRow` in `../collection-naming/mentionable.ts`.",
        "items": {
          "$ref": "#/$defs/MentionableRow"
        },
        "tags": [
          "42"
        ],
        "type": "array"
      },
      "names": {
        "$ref": "#/$defs/NamesMap",
        "default": {},
        "description": "The namespace itself: each name to the topic it names. A slug pointing\nhere is what makes a member addressable as `<collection>/<name>`.\nPublished under the default its input carries."
      },
      "namesTable": {
        "default": [],
        "description": "The names table, one row per named member, which every topic the board\ncreates reads its own name from. Published so a topic composed outside\n`addTopic` can be wired to the same table.",
        "items": {
          "$ref": "#/$defs/NamesTableRow"
        },
        "type": "array"
      },
      "naming": {
        "$ref": "#/$defs/NamingDeclaration",
        "description": "What the board declares about its names, for a consumer deciding whether\na name may be held rather than an identity."
      },
      "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",
      "names",
      "namesTable",
      "naming",
      "topicCount",
      "crossrefs",
      "index",
      "addTopic",
      "backfillNames",
      "submitTopic",
      "$NAME",
      "$UI"
    ],
    "tags": [
      "topic"
    ],
    "type": "object"
  }
}