different-ai/openwork · error · EnterpriseMcpCatalogError

MCP_CATALOG_CURSOR_LOOP

MCP_CATALOG_CURSOR_LOOP

Error message

MCP_CATALOG_CURSOR_LOOP

What it means

Error "MCP_CATALOG_CURSOR_LOOP" thrown in different-ai/openwork.

Source

Thrown at packages/enterprise-mcp-client/src/resource-catalog.ts:66

      if (items.length >= ENTERPRISE_MCP_RESOURCE_ITEM_LIMIT) {
        throw new EnterpriseMcpCatalogError("MCP_CATALOG_ITEM_LIMIT")
      }
      const identifier = item.uri ?? item.uriTemplate ?? ""
      if (identifiers.has(identifier)) throw new EnterpriseMcpCatalogError("MCP_CATALOG_DUPLICATE_RESOURCE")
      const bytes = assertDescriptor(item)
      if (catalogBytes + bytes > ENTERPRISE_MCP_RESOURCE_CATALOG_LIMIT_BYTES) {
        throw new EnterpriseMcpCatalogError("MCP_CATALOG_BYTE_LIMIT")
      }
      catalogBytes += bytes
      identifiers.add(identifier)
      items.push(item)
    }

    if (!result.nextCursor) return items
    if (Buffer.byteLength(result.nextCursor, "utf8") > ENTERPRISE_MCP_RESOURCE_URI_LIMIT_BYTES) {
      throw new EnterpriseMcpCatalogError("MCP_CATALOG_CURSOR_SIZE_LIMIT")
    }
    if (cursors.has(result.nextCursor)) throw new EnterpriseMcpCatalogError("MCP_CATALOG_CURSOR_LOOP")
    cursors.add(result.nextCursor)
    cursor = result.nextCursor
  }

  throw new EnterpriseMcpCatalogError("MCP_CATALOG_PAGE_LIMIT")
}

export function collectEnterpriseMcpResources(input: {
  listPage: (cursor: string | undefined, options: RequestOptions) => Promise<ResourcePage>
  requestOptions: RequestOptions
}) {
  return collectPages({
    requestOptions: input.requestOptions,
    listPage: async (cursor, options) => {
      const result = await input.listPage(cursor, options)
      return { items: result.resources, nextCursor: result.nextCursor }
    },
  })

View on GitHub (pinned to 2b7df46e8a)

When it happens

Trigger: Thrown at packages/enterprise-mcp-client/src/resource-catalog.ts:66 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of different-ai/openwork@2b7df46e8a (2026-09-01). Data as JSON: /api/errors/b3d6b5753d49f1e8. Report an issue: GitHub.