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{\n  type CallToolResult,\n  type JsonObject,\n  type JsonRpcMessage,\n  type JsonRpcRequest,\n  type JsonRpcId,\n  type RegisteredTool,\n  type ServerCapabilities,\n  type ServerInfo,\n  type ToolDefinition,\n  type ToolHandler,\n  JSONRPC_INTERNAL_ERROR,\n  JSONRPC_INVALID_PARAMS,\n  JSONRPC_METHOD_NOT_FOUND,\n  MCP_PROTOCOL_VERSION,\n} from \"./types\";\nimport { ToolRegistry } from \"./tool-host\";\n\nexport type McpServerOptions = {\n  info: ServerInfo;\n  /** Defaults to { tools: { listChanged: true } } */\n  capabilities?: ServerCapabilities;\n  /** Free-text instructions surfaced to clients during initialize. */\n  instructions?: string;\n  /**\n   * The protocol revisions this server speaks, NEWEST FIRST.\n   *\n   * `initialize` echoes the client's requested revision when it is in this\n   * list, and answers the first entry otherwise — the spec's rule, which leaves\n   * the client to decide whether it can live with the answer.\n   *\n   * Defaults to `[MCP_PROTOCOL_VERSION]`: one revision, answered whatever the\n   * client asks, which is exactly what this server did before the option\n   * existed. Only list a revision the tools you register are correct under.\n   */\n  protocolVersions?: readonly string[];\n};\n\nexport type Transport = {\n  /** Called by the server when it has a message to deliver to the client. */\n  send: (message: JsonRpcMessage) => void;\n  /** Called by the server when it's torn down so the transport can clean up. */\n  close?: () => void;\n};\n\n/**\n * MicroMcpServer — protocol-level MCP server, transport-agnostic.\n *\n * Use it like:\n *\n *   const server = new MicroMcpServer({ info: { name: \"session\", version: \"0.1\" } });\n *   server.registerTool({ name: \"...\", inputSchema: { type: \"object\" } }, async (args) => ({...}));\n *   const transport = new InProcessTransport();\n *   server.attach(transport);\n *   transport.deliver({ ... }); // client → server frames\n *\n * The same server can serve multiple transports (e.g. an in-process agent\n * AND a relayed external client) by attaching each one.\n */\nexport class MicroMcpServer extends ToolRegistry {\n  private transports = new Set<Transport>();\n  /**\n   * Transports owed a `tools/list_changed` at the end of this tick. Empty when\n   * none is scheduled. See {@link scheduleListChangedNotification}.\n   */\n  private listChangedOwed = new Set<Transport>();\n\n  readonly info: ServerInfo;\n  readonly capabilities: ServerCapabilities;\n  readonly instructions?: string;\n  readonly protocolVersions: readonly string[];\n\n  constructor(options: McpServerOptions) {\n    super();\n    this.info = options.info;\n    this.capabilities = options.capabilities ?? { tools: { listChanged: true } };\n    this.instructions = options.instructions;\n    if (options.protocolVersions && options.protocolVersions.length === 0) {\n      // No answer exists for a client's initialize. Fail here, next to the\n      // mistake, rather than in a handshake nobody is watching.\n      throw new Error(\"MicroMcpServer: protocolVersions is empty — a server must speak at least one protocol revision.\");\n    }\n    this.protocolVersions = options.protocolVersions ? [...options.protocolVersions] : [MCP_PROTOCOL_VERSION];\n  }\n\n  attach(transport: Transport): () => void {\n    this.transports.add(transport);\n    return () => this.detach(transport);\n  }\n\n  detach(transport: Transport): void {\n    if (this.transports.delete(transport)) {\n      transport.close?.();\n    }\n  }\n\n  unregisterTool(name: string): void {\n    if (this.tools.delete(name)) {\n      this.scheduleListChangedNotification();\n    }\n  }\n\n  protected onToolsChanged(): void {\n    this.scheduleListChangedNotification();\n  }\n\n  /**\n   * Receive a JSON-RPC frame from a client (called by the transport).\n   * The transport is responsible for sending the response back.\n   */\n  async receive(transport: Transport, message: JsonRpcMessage): Promise<void> {\n    if (!(\"method\" in message)) return; // It's a response, not a request — ignore.\n\n    const isNotification = !(\"id\" in message);\n    if (isNotification) {\n      // Notifications are fire-and-forget. We ignore unknown methods.\n      return;\n    }\n\n    const request = message as JsonRpcRequest;\n    try {\n      const result = await this.handle(request, transport);\n      transport.send({ jsonrpc: \"2.0\", id: request.id, result });\n    } catch (err) {\n      transport.send({\n        jsonrpc: \"2.0\",\n        id: request.id,\n        error: this.toRpcError(err),\n      });\n    }\n  }\n\n  private async handle(request: JsonRpcRequest, transport: Transport): Promise<any> {\n    const { method, params } = request;\n    switch (method) {\n      case \"initialize\":\n        return {\n          protocolVersion: this.negotiate(params?.protocolVersion),\n          capabilities: this.capabilities,\n          serverInfo: this.info,\n          ...(this.instructions ? { instructions: this.instructions } : {}),\n        };\n\n      case \"tools/list\":\n        return { tools: this.listTools() };\n\n      case \"tools/call\": {\n        const name = params?.name;\n        const args = (params?.arguments ?? {}) as JsonObject;\n        if (typeof name !== \"string\") {\n          throw rpcError(JSONRPC_INVALID_PARAMS, \"tools/call requires `name`\");\n        }\n        const tool = this.tools.get(name);\n        if (!tool) {\n          throw rpcError(JSONRPC_METHOD_NOT_FOUND, this.missingToolMessage(name));\n        }\n        const result = await tool.handler(args, { transport });\n        return result satisfies CallToolResult;\n      }\n\n      case \"ping\":\n        return {};\n\n      default:\n        throw rpcError(JSONRPC_METHOD_NOT_FOUND, `Unsupported method: ${method}`);\n    }\n  }\n\n  /** The revision to answer `initialize` with: the one asked for if spoken, else the newest. */\n  private negotiate(requested: unknown): string {\n    return typeof requested === \"string\" && this.protocolVersions.includes(requested)\n      ? requested\n      : this.protocolVersions[0];\n  }\n\n  /**\n   * Tell the transports that SAW the old tool list that it changed.\n   *\n   * Changes in one tick coalesce into one notification. The recipients are the\n   * transports attached at the moment of a change, not at the moment the\n   * notification goes out: a transport attached afterwards never had the old\n   * list, so \"your list is stale\" is noise to it — and on stdio, where a host\n   * builds the server and attaches stdin/stdout in the same tick, it was the\n   * first frame a client received, before it had even sent `initialize`.\n   */\n  private scheduleListChangedNotification(): void {\n    if (this.transports.size === 0) return;\n    const scheduled = this.listChangedOwed.size > 0;\n    for (const t of this.transports) this.listChangedOwed.add(t);\n    if (scheduled) return;\n    queueMicrotask(() => {\n      const owed = this.listChangedOwed;\n      this.listChangedOwed = new Set();\n      for (const t of owed) {\n        // Detached since the change: it is not listening any more.\n        if (this.transports.has(t)) t.send({ jsonrpc: \"2.0\", method: \"notifications/tools/list_changed\" });\n      }\n    });\n  }\n\n  /** Send an application notification to every client, or one attached transport. */\n  notify(message: JsonRpcMessage, transport?: Transport): void {\n    if (transport) transport.send(message);\n    else this.broadcast(message);\n  }\n\n  private broadcast(message: JsonRpcMessage): void {\n    for (const t of this.transports) t.send(message);\n  }\n\n  private toRpcError(err: unknown): { code: number; message: string; data?: any } {\n    if (err && typeof err === \"object\" && \"code\" in err && \"message\" in err) {\n      return err as any;\n    }\n    return {\n      code: JSONRPC_INTERNAL_ERROR,\n      message: err instanceof Error ? err.message : String(err),\n    };\n  }\n}\n\nexport function rpcError(code: number, message: string, data?: any) {\n  return { code, message, ...(data !== undefined ? { data } : {}) };\n}\n\n/**\n * Helper to build a CallToolResult from a string or structured value.\n */\nexport function textResult(text: string, structured?: any): CallToolResult {\n  return {\n    content: [{ type: \"text\", text }],\n    ...(structured !== undefined ? { structuredContent: structured } : {}),\n  };\n}\n\nexport function errorResult(text: string): CallToolResult {\n  return { content: [{ type: \"text\", text }], isError: true };\n}\n\n// Internal helper so the JsonRpcId import isn't dropped by tsup\ntype _KeepIdImport = JsonRpcId;\n","import type { CallToolResult } from \"../mcp/types\";\nimport { emitActivity } from \"./registry\";\nimport type { AgentTarget } from \"./types\";\n\nexport type ActivityAgent = { id: string; name?: string; color?: string };\n\nexport type ActivityResolverContext<TArgs = Record<string, unknown>> = {\n  /** Tool name as registered. */\n  toolName: string;\n  /** Arguments the tool was called with. */\n  args: TArgs;\n  /** The CallToolResult the underlying handler produced. */\n  result: CallToolResult;\n};\n\n/**\n * Resolves an `AgentTarget` for an executed tool. Bridges declare one of\n * these per registration so the wrapper knows which surface / element /\n * screen the activity belongs to.\n *\n * The resolver runs AFTER the tool handler so it can inspect the result\n * (e.g. read a newly-created item id from `structuredContent`).\n */\nexport type ActivityTargetResolver<TArgs = Record<string, unknown>> = (\n  ctx: ActivityResolverContext<TArgs>,\n) => AgentTarget | null;\n\nexport type ToolHandler<TArgs = Record<string, unknown>> = (\n  args: TArgs,\n) => Promise<CallToolResult> | CallToolResult;\n\n/**\n * wrapToolWithActivity — decorate a bridge tool handler so every successful\n * call emits an `AgentActivityEvent`. Returns a new handler with the same shape.\n *\n * Usage in a bridge:\n *\n *   server.registerTool(\n *     definition,\n *     wrapToolWithActivity(\n *       handler,\n *       { agent, kind: \"whiteboard\", resolveTarget: ({ args }) => ({\n *           kind: \"whiteboard\", elementId: args.id as string,\n *         }) },\n *     ),\n *   );\n */\nexport function wrapToolWithActivity<TArgs = Record<string, unknown>>(\n  handler: ToolHandler<TArgs>,\n  options: {\n    toolName: string;\n    agent: ActivityAgent;\n    /** Optional fancy-screens screen id this bridge is scoped to. */\n    screenId?: string;\n    /** Default target kind if the resolver returns one without `kind`. */\n    kind: AgentTarget[\"kind\"];\n    /** Per-call resolver. Return `null` to skip emitting (e.g. for read-only tools). */\n    resolveTarget?: ActivityTargetResolver<TArgs>;\n    /** Optional ttl override. */\n    ttlMs?: number;\n    /**\n     * Build the `meta` broadcast to all relay peers. Defaults to the tool's full\n     * `structuredContent`. Override to REDACT sensitive fields before fan-out —\n     * e.g. the terminal bridge strips raw command/keystroke bytes so a command\n     * line (or its secrets) is never broadcast verbatim to every peer.\n     */\n    buildMeta?: (result: CallToolResult) => Record<string, unknown> | undefined;\n  },\n): ToolHandler<TArgs> {\n  return async (args) => {\n    const result = await handler(args);\n    if (result.isError) return result;\n\n    let target: AgentTarget | null;\n    if (options.resolveTarget) {\n      target = options.resolveTarget({ toolName: options.toolName, args, result });\n    } else {\n      target = { kind: options.kind, screenId: options.screenId };\n    }\n    if (!target) return result;\n\n    emitActivity({\n      agentId: options.agent.id,\n      agentName: options.agent.name,\n      agentColor: options.agent.color,\n      target: { ...target, kind: target.kind ?? options.kind, screenId: target.screenId ?? options.screenId },\n      action: options.toolName,\n      timestamp: Date.now(),\n      meta: options.buildMeta ? options.buildMeta(result) : extractMeta(result),\n      ttlMs: options.ttlMs,\n    });\n    return result;\n  };\n}\n\nfunction extractMeta(result: CallToolResult): Record<string, unknown> | undefined {\n  const sc = result.structuredContent;\n  if (sc && typeof sc === \"object\" && !Array.isArray(sc)) {\n    return sc as Record<string, unknown>;\n  }\n  return undefined;\n}\n","import { textResult, errorResult } from \"../mcp/server\";\nimport type { ToolHost } from \"../mcp/tool-host\";\nimport { readHistory, redoOne, undoOne } from \"./undo-stack\";\n\nexport type UndoToolsOptions = {\n  /** Default agent id when the caller doesn't pass one. */\n  defaultAgentId?: string;\n};\n\n/**\n * Idempotent tracker so multiple bridges on the same server only register\n * agent_undo / agent_redo / agent_history once.\n */\nconst installedHosts = new WeakSet<ToolHost>();\n\n/**\n * The one owner every copy of the undo tools registers under. They are SHARED\n * on purpose — every bridge ensures them, and a host may also call\n * `registerUndoTools` itself — so all of those are the same registrant, and a\n * second registration replaces the first instead of being refused as a\n * collision. Anything else claiming `agent_undo` is still refused.\n */\nconst UNDO_TOOLS_OWNER = \"agent-undo\";\n\n/**\n * ensureUndoToolsRegistered — bridges call this on construction. Safe to\n * call repeatedly with the same server; subsequent calls are no-ops.\n */\nexport function ensureUndoToolsRegistered(host: ToolHost, options: UndoToolsOptions = {}): void {\n  if (installedHosts.has(host)) return;\n  installedHosts.add(host);\n  registerUndoTools(host, options);\n}\n\n/**\n * registerUndoTools — add agent_undo / agent_redo / agent_history to the\n * server. Returns a disposer that unregisters all three.\n */\nexport function registerUndoTools(host: ToolHost, options: UndoToolsOptions = {}): () => void {\n  const defaultAgent = options.defaultAgentId ?? \"agent\";\n  const disposers: Array<() => void> = [];\n  const agentOf = (args: any): string =>\n    typeof args?.agentId === \"string\" ? args.agentId : defaultAgent;\n\n  disposers.push(\n    host.registerTool(\n      {\n        name: \"agent_undo\",\n        description: \"Undo the most recent action on the agent's stack. Optional agentId targets a specific agent.\",\n        inputSchema: {\n          type: \"object\",\n          properties: { agentId: { type: \"string\" } },\n          additionalProperties: false,\n        },\n      },\n      async (args) => {\n        const entry = await undoOne(agentOf(args));\n        if (!entry) return errorResult(\"Nothing to undo.\");\n        return textResult(`Undid: ${entry.label}`, { entry: serialize(entry) });\n      },\n      { owner: UNDO_TOOLS_OWNER },\n    ),\n  );\n\n  disposers.push(\n    host.registerTool(\n      {\n        name: \"agent_redo\",\n        description: \"Redo the most recently undone action.\",\n        inputSchema: {\n          type: \"object\",\n          properties: { agentId: { type: \"string\" } },\n          additionalProperties: false,\n        },\n      },\n      async (args) => {\n        const entry = await redoOne(agentOf(args));\n        if (!entry) return errorResult(\"Nothing to redo.\");\n        return textResult(`Redid: ${entry.label}`, { entry: serialize(entry) });\n      },\n      { owner: UNDO_TOOLS_OWNER },\n    ),\n  );\n\n  disposers.push(\n    host.registerTool(\n      {\n        name: \"agent_history\",\n        description: \"List the agent's undo stack (oldest first). Useful for understanding what's reversible.\",\n        inputSchema: {\n          type: \"object\",\n          properties: { agentId: { type: \"string\" } },\n          additionalProperties: false,\n        },\n      },\n      async (args) => {\n        const history = readHistory(agentOf(args)).map(serialize);\n        const text = history.map((e) => `${new Date(e.timestamp).toISOString()} ${e.bridgeId} ${e.action}: ${e.label}`).join(\"\\n\");\n        return textResult(text || \"(empty)\", history);\n      },\n      { owner: UNDO_TOOLS_OWNER },\n    ),\n  );\n\n  return () => disposers.forEach((d) => d());\n}\n\nfunction serialize(entry: import(\"./undo-stack\").UndoEntry) {\n  return {\n    timestamp: entry.timestamp,\n    bridgeId: entry.bridgeId,\n    action: entry.action,\n    label: entry.label,\n  };\n}\n","import { textResult, errorResult } from \"../mcp/server\";\nimport type { ToolHost } from \"../mcp/tool-host\";\nimport type { JsonObject } from \"../mcp/types\";\nimport type { Bridge } from \"./types\";\nimport { wrapToolWithActivity } from \"../presence/wrap-tool-with-activity\";\nimport { ensureUndoToolsRegistered } from \"../undo/undo-tools\";\nimport { pushUndoEntry } from \"../undo/undo-stack\";\nimport type { AgentTarget } from \"../presence/types\";\n\n/**\n * Loose grid types — the public state shape of `@particle-academy/fancy-grid`,\n * mirrored here rather than imported.\n *\n * Same reason the scene bridge mirrors fancy-3d's descriptor: a bridge must not\n * drag its surface package into every consumer's tree. fancy-grid keeps\n * TanStack Table and Virtual as PEERS specifically so nothing bundles them, and\n * an `import type` here would still make fancy-grid a build-time dependency of\n * agent-integrations. The state is four small JSON shapes; the coupling is not\n * worth it.\n */\nexport type GridSort = { id: string; desc: boolean };\nexport type GridFilter = { id: string; value: string };\nexport type GridPagination = { pageIndex: number; pageSize: number };\n\nexport type GridState = {\n  sorting?: GridSort[];\n  filters?: GridFilter[];\n  /** Keyed by row id — see the grid's `getRowId`. */\n  rowSelection?: Record<string, boolean>;\n  pagination?: GridPagination;\n};\n\nexport type GridBridgeAdapter = {\n  id: string;\n  title?: string;\n  screenId?: string;\n  /** Controlled state — the same object the grid's `onStateChange` emits. */\n  getState: () => GridState;\n  setState: (next: GridState) => void;\n  /**\n   * Column ids an agent may address. Supplied so a tool can REJECT an unknown\n   * column instead of writing a sort nothing applies — a silently ignored sort\n   * looks identical to a grid that simply is not sorted.\n   */\n  getColumnIds?: () => string[];\n  /** Row ids currently on screen, for `grid_select_rows` validation. */\n  getRowIds?: () => string[];\n  /**\n   * Write one cell. Absent when the grid is read-only, in which case\n   * `grid_edit_cell` is not registered at all rather than failing at call time\n   * — an agent should discover the capability from the tool list.\n   */\n  editCell?: (rowId: string, columnId: string, value: unknown) => void | Promise<void>;\n};\n\nexport type GridBridgeOptions = {\n  adapter: GridBridgeAdapter;\n  agent?: { id: string; name?: string; color?: string };\n  /**\n   * Gate writes behind a human confirmation. `grid_edit_cell` is the only\n   * mutation that changes DATA rather than view state, so it is the one that\n   * matters here — sorting a grid is not a trust-but-verify action.\n   */\n  pendingMode?: boolean;\n  onPending?: (staged: { id: string; label: string; apply: () => void | Promise<void> }) => void;\n};\n\nconst DEFAULT_AGENT = { id: \"agent\", name: \"Agent\", color: \"#a855f7\" };\n\n/**\n * registerGridBridge — MCP access to a `fancy-grid` surface.\n *\n * `grid_sort`, `grid_filter`, `grid_select_rows` and `grid_edit_cell`, plus a\n * read tool. View state (sort / filter / selection / page) goes through one\n * `setState` channel because that is how the grid is controlled — a bridge that\n * mutated pieces separately would drift from what the component actually\n * accepts.\n */\nexport function registerGridBridge(host: ToolHost, options: GridBridgeOptions): Bridge {\n  const { adapter } = options;\n  const agent = { ...DEFAULT_AGENT, ...(options.agent ?? {}) };\n  const disposers: Array<() => void> = [];\n  // The bridge id is also its registrant identity on the host: the same bridge\n  // may re-register (a remount), a different one claiming a name is refused.\n  const bridgeId = `grid:${adapter.id}`;\n\n  ensureUndoToolsRegistered(host, { defaultAgentId: agent.id });\n\n  const target = (part?: string): AgentTarget => ({\n    kind: \"grid\",\n    screenId: adapter.screenId,\n    elementId: part ? `${adapter.id}:${part}` : adapter.id,\n    label: part ? `${adapter.title ?? adapter.id} → ${part}` : (adapter.title ?? adapter.id),\n  });\n\n  const reg = (\n    name: string,\n    description: string,\n    properties: Record<string, unknown>,\n    required: string[],\n    handler: (args: JsonObject) => Promise<ReturnType<typeof textResult>> | ReturnType<typeof textResult>,\n    isMutation: boolean,\n    partFromArgs?: (args: JsonObject) => string | undefined,\n  ) => {\n    const wrapped = async (args: JsonObject) => {\n      try {\n        return await handler(args);\n      } catch (e) {\n        return errorResult(e instanceof Error ? e.message : String(e));\n      }\n    };\n    const final = isMutation\n      ? wrapToolWithActivity(wrapped, {\n          toolName: name,\n          agent,\n          kind: \"grid\",\n          screenId: adapter.screenId,\n          resolveTarget: ({ args }) => target(partFromArgs?.(args)),\n        })\n      : wrapped;\n\n    disposers.push(\n      host.registerTool(\n        {\n          name,\n          description,\n          inputSchema: { type: \"object\", properties: properties as never, required, additionalProperties: false },\n        },\n        final as never,\n        { owner: bridgeId },\n      ),\n    );\n  };\n\n  /** Reject an unknown column rather than writing state nothing applies. */\n  const assertColumn = (id: string): void => {\n    const known = adapter.getColumnIds?.();\n    if (known && !known.includes(id)) {\n      throw new Error(`Unknown column \"${id}\". Available: ${known.join(\", \")}`);\n    }\n  };\n\n  const commit = (next: GridState, action: string, label: string, previous: GridState): void => {\n    adapter.setState(next);\n    pushUndoEntry(agent.id, {\n      timestamp: Date.now(),\n      bridgeId: `grid:${adapter.id}`,\n      action,\n      label,\n      undo: () => adapter.setState(previous),\n      redo: () => adapter.setState(next),\n    });\n  };\n\n  // ───────────── Read ─────────────\n\n  reg(\n    \"grid_get\",\n    \"Read the grid's view state — sorting, filters, selected row ids, pagination — plus the addressable column and row ids.\",\n    {},\n    [],\n    () => {\n      const state = adapter.getState();\n      return textResult(\n        JSON.stringify(\n          {\n            id: adapter.id,\n            title: adapter.title,\n            sorting: state.sorting ?? [],\n            filters: state.filters ?? [],\n            selectedRowIds: Object.entries(state.rowSelection ?? {})\n              .filter(([, on]) => on)\n              .map(([id]) => id),\n            pagination: state.pagination,\n            columnIds: adapter.getColumnIds?.() ?? null,\n            rowIds: adapter.getRowIds?.() ?? null,\n            editable: Boolean(adapter.editCell),\n          },\n          null,\n          2,\n        ),\n      );\n    },\n    false,\n  );\n\n  // ───────────── View state ─────────────\n\n  reg(\n    \"grid_sort\",\n    \"Sort the grid. Pass an empty array to clear sorting. Multiple entries sort by each in order.\",\n    {\n      sorting: {\n        type: \"array\",\n        description: 'e.g. [{ \"id\": \"createdAt\", \"desc\": true }]',\n        items: {\n          type: \"object\",\n          properties: { id: { type: \"string\" }, desc: { type: \"boolean\" } },\n          required: [\"id\"],\n          additionalProperties: false,\n        },\n      },\n    },\n    [\"sorting\"],\n    (args) => {\n      const raw = Array.isArray(args.sorting) ? (args.sorting as GridSort[]) : [];\n      const sorting = raw.map((s) => {\n        assertColumn(String(s.id));\n        return { id: String(s.id), desc: Boolean(s.desc) };\n      });\n\n      const previous = adapter.getState();\n      commit({ ...previous, sorting }, \"grid_sort\", `Sorted by ${sorting.map((s) => s.id).join(\", \") || \"nothing\"}`, previous);\n      return textResult(`Sorted by ${sorting.map((s) => `${s.id}${s.desc ? \" desc\" : \"\"}`).join(\", \") || \"nothing\"}.`);\n    },\n    true,\n    (args) => (Array.isArray(args.sorting) && args.sorting[0] ? String((args.sorting[0] as GridSort).id) : undefined),\n  );\n\n  reg(\n    \"grid_filter\",\n    \"Filter the grid. Pass an empty array to clear all filters.\",\n    {\n      filters: {\n        type: \"array\",\n        description: 'e.g. [{ \"id\": \"status\", \"value\": \"open\" }]',\n        items: {\n          type: \"object\",\n          properties: { id: { type: \"string\" }, value: { type: \"string\" } },\n          required: [\"id\", \"value\"],\n          additionalProperties: false,\n        },\n      },\n    },\n    [\"filters\"],\n    (args) => {\n      const raw = Array.isArray(args.filters) ? (args.filters as GridFilter[]) : [];\n      const filters = raw.map((f) => {\n        assertColumn(String(f.id));\n        return { id: String(f.id), value: String(f.value) };\n      });\n\n      const previous = adapter.getState();\n      commit({ ...previous, filters }, \"grid_filter\", `Filtered ${filters.map((f) => f.id).join(\", \") || \"cleared\"}`, previous);\n      return textResult(`Filtering on ${filters.map((f) => `${f.id}=${f.value}`).join(\", \") || \"nothing\"}.`);\n    },\n    true,\n    (args) => (Array.isArray(args.filters) && args.filters[0] ? String((args.filters[0] as GridFilter).id) : undefined),\n  );\n\n  reg(\n    \"grid_select_rows\",\n    \"Replace the grid's row selection with the given row ids. Pass an empty array to clear.\",\n    { rowIds: { type: \"array\", items: { type: \"string\" }, description: \"Row ids, per the grid's getRowId.\" } },\n    [\"rowIds\"],\n    (args) => {\n      const ids = Array.isArray(args.rowIds) ? args.rowIds.map(String) : [];\n      const known = adapter.getRowIds?.();\n      if (known) {\n        const missing = ids.filter((id) => !known.includes(id));\n        if (missing.length) {\n          // Selecting a row that is not loaded looks like it worked and shows\n          // nothing — worth an error rather than a silent no-op.\n          throw new Error(`Row id(s) not on this page: ${missing.join(\", \")}`);\n        }\n      }\n\n      const previous = adapter.getState();\n      const rowSelection: Record<string, boolean> = {};\n      for (const id of ids) rowSelection[id] = true;\n\n      commit({ ...previous, rowSelection }, \"grid_select_rows\", `Selected ${ids.length} row${ids.length === 1 ? \"\" : \"s\"}`, previous);\n      return textResult(`Selected ${ids.length} row${ids.length === 1 ? \"\" : \"s\"}.`);\n    },\n    true,\n  );\n\n  // ───────────── Data ─────────────\n\n  if (adapter.editCell) {\n    reg(\n      \"grid_edit_cell\",\n      \"Write one cell. This changes DATA, not just the view.\",\n      {\n        rowId: { type: \"string\" },\n        columnId: { type: \"string\" },\n        value: { description: \"New value. Any JSON scalar or object the column accepts.\" },\n      },\n      [\"rowId\", \"columnId\"],\n      async (args) => {\n        const rowId = String(args.rowId);\n        const columnId = String(args.columnId);\n        assertColumn(columnId);\n\n        const apply = async () => {\n          await adapter.editCell?.(rowId, columnId, args.value);\n        };\n\n        if (options.pendingMode) {\n          // Trust-but-verify: the only tool here that changes stored data\n          // stages instead of writing. Sorting a grid is not a destructive act;\n          // editing a cell is.\n          const id = `grid-edit-${Date.now().toString(36)}`;\n          options.onPending?.({ id, label: `set ${columnId} on row ${rowId}`, apply });\n          return textResult(`Staged: set ${columnId} on row ${rowId}. Awaiting confirmation.`);\n        }\n\n        await apply();\n        return textResult(`Set ${columnId} on row ${rowId}.`);\n      },\n      true,\n      (args) => `${String(args.rowId)}:${String(args.columnId)}`,\n    );\n  }\n\n  return {\n    id: bridgeId,\n    title: adapter.title ?? adapter.id,\n    dispose: () => {\n      for (const d of disposers) d();\n      disposers.length = 0;\n    },\n  };\n}\n"]}