diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index c2038f5c..089d7d3f 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -16,7 +16,12 @@
 #
 spring.application.name=solr-mcp
 spring.profiles.active=${PROFILES:stdio}
-spring.ai.mcp.server.instructions=This server provides tools to interact with Apache Solr using Model Context Protocol (MCP) over STDIO and/or HTTP. 
+spring.ai.mcp.server.instructions=This server provides tools to search, index, and manage Apache Solr collections. \
+Discover before acting: use list-collections and get-schema to see what exists before searching or indexing. \
+Surface boundaries: there are no tools to delete documents or collections, drop or alter existing fields, \
+or debug relevance scoring (debugQuery); vector/KNN search is not exposed; search facets are simple field \
+facets only (no range, pivot, or JSON facets). Schema modification is additive only via add-fields and \
+add-field-types; changing an existing field's type requires reindexing and is not supported by this server.
 spring.ai.mcp.server.name=${spring.application.name}
 spring.ai.mcp.server.version=1.0.0
 # Solr configuration