add_tiles_to_split

Add missing categories to an existing split in hierarchical tile-based research organization. This action requires re-verification of MECE validation after tile insertion.

Instructions

Add additional tiles to an existing split (when you realize a category was missed). This invalidates the MECE validation and requires re-verification.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`parentId`	Yes	ID of the parent tile
`newTiles`	Yes	New tiles to add to the split

Implementation Reference

src/research-tree.ts:210-228 (handler)

Core implementation of the add_tiles_to_split tool: adds new child tiles to a parent tile's split, creates the tiles via createTile, and invalidates the parent's MECE status.

addTilesToSplit(
  parentId: string,
  newTiles: Array<{ title: string; description: string; isLeaf?: boolean }>
): Tile[] {
  const parent = this.tiles.get(parentId);
  if (!parent) {
    throw new Error(`Parent tile ${parentId} not found`);
  }

  const createdTiles = newTiles.map((tile) =>
    this.createTile(tile.title, tile.description, parentId, tile.isLeaf || false)
  );

  // Invalidate MECE status since we're adding to the split
  parent.isMECE = undefined;
  parent.updatedAt = new Date();

  return createdTiles;
}

src/index.ts:439-452 (handler)

MCP server handler for add_tiles_to_split tool call: extracts arguments and delegates to ResearchTreeManager.addTilesToSplit, formats result as MCP content response.

case "add_tiles_to_split": {
  const result = treeManager.addTilesToSplit(
    args.parentId as string,
    args.newTiles as any[]
  );
  return {
    content: [
      {
        type: "text",
        text: JSON.stringify(result, null, 2),
      },
    ],
  };
}

src/index.ts:87-113 (registration)

Tool registration in TOOLS array: defines name, description, and inputSchema for add_tiles_to_split, used by ListToolsRequestHandler.

{
  name: "add_tiles_to_split",
  description: "Add additional tiles to an existing split (when you realize a category was missed). This invalidates the MECE validation and requires re-verification.",
  inputSchema: {
    type: "object",
    properties: {
      parentId: {
        type: "string",
        description: "ID of the parent tile",
      },
      newTiles: {
        type: "array",
        items: {
          type: "object",
          properties: {
            title: { type: "string" },
            description: { type: "string" },
            isLeaf: { type: "boolean" },
          },
          required: ["title", "description"],
        },
        description: "New tiles to add to the split",
      },
    },
    required: ["parentId", "newTiles"],
  },
},

src/index.ts:90-112 (schema)

Input schema for validating add_tiles_to_split tool arguments: requires parentId and array of newTiles with title and description.

inputSchema: {
  type: "object",
  properties: {
    parentId: {
      type: "string",
      description: "ID of the parent tile",
    },
    newTiles: {
      type: "array",
      items: {
        type: "object",
        properties: {
          title: { type: "string" },
          description: { type: "string" },
          isLeaf: { type: "boolean" },
        },
        required: ["title", "description"],
      },
      description: "New tiles to add to the split",
    },
  },
  required: ["parentId", "newTiles"],
},

Tiling Trees MCP Server