#command-set 4 articles

• A CDN-hosted extension bundle may only import modules its App Catalog manifest declaresgotchas / spfxReplacing an extension's stable-named bundle on the CDN without a new .sppkg works only while its define([...]) lists modules already in the installed manifest's scriptResources — one new value import and the extension…
• A command set's commands are fixed in its manifestgotchas / spfxtitle, iconImageUrl, visible and disabled change at runtime, new commands need a new .sppkg; ship one entry that opens your own menu, or reserve hidden slots (and keep their titles honest)
• CDN pruning deleted the extension bundle the deployed .sppkg still referencedgotchas / spfxWith includeClientSideAssets: false the catalog pins hashed names for customizers and command sets too; a "keep N newest" prune evicts the referenced hash and the extension 404s for days — protect extension bundles by…
• List and library pages run a stale extension bundle from Cache Storage for daysgotchas / spfxStable (unhashed) bundle URL = list and library pages can run a days-old copy from the Lists app's own Cache Storage (Lists-odsp-web-prod_*), whatever Cache-Control says; keep the stable file a tiny loader and load…