> ## Documentation Index > Fetch the complete documentation index at: https://wundergraphinc-docs-fix-3303-emit-event-rename.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Compositions > Comprehensive records detailing every instance of a subgraph publication. Cosmo Docs compositions list with green Composes status icons The highlights of the compositions page are as follows: * Track the inputs and the errors of every composition. * Track every version of your composed schema. * View the changes in the federated graph after each composition. * Understand what version is currently available to the router. Composed schema with no changes and trigger from suvj@wundergraph.com in Cosmo Docs
Cosmo Docs composition error caused by missing schema field