diff --git a/app/MindWork AI Studio/Plugins/configuration/plugin.lua b/app/MindWork AI Studio/Plugins/configuration/plugin.lua
index c7f3d6a0..57137075 100644
--- a/app/MindWork AI Studio/Plugins/configuration/plugin.lua	
+++ b/app/MindWork AI Studio/Plugins/configuration/plugin.lua	
@@ -736,18 +736,27 @@ CONFIG["SETTINGS"] = {}
 
 -- Disable individual tools by their stable tool ID. The default is an empty set.
 -- Unknown IDs are safely ignored and can be deployed before a future tool is installed.
+-- semantic_search lets the model search the data sources of a chat itself. Nobody selects it:
+-- it offers itself whenever a chat has data sources to search. Disabling it makes AI Studio
+-- search the data sources with every message instead, the way it does for models without
+-- tool usage.
 -- CONFIG["SETTINGS"]["DataTools.DisabledToolIds"] = { "web_search" }
 
 -- Configure the minimum provider confidence level required for individual tools.
--- Tool IDs include: web_search, read_web_page, search_confluence
+-- Tool IDs include: web_search, read_web_page, search_confluence, semantic_search
 -- Allowed values are: NONE, UNTRUSTED, VERY_LOW, LOW, MODERATE, MEDIUM, HIGH
--- Defaults: web_search = VERY_LOW, read_web_page = VERY_LOW, search_confluence = HIGH
+-- Defaults: web_search = VERY_LOW, read_web_page = VERY_LOW, search_confluence = HIGH,
+-- semantic_search = NONE
 -- search_confluence always searches with a HIGH-confidence provider only, whatever value is
 -- set here.
+-- semantic_search offers a provider only the data sources whose own confidence level it meets,
+-- so it needs no minimum of its own. A provider below a minimum set here has the data sources
+-- searched with every message instead.
 -- CONFIG["SETTINGS"]["DataTools.MinimumProviderConfidenceByToolId"] = {
 --     ["web_search"] = "VERY_LOW",
 --     ["read_web_page"] = "VERY_LOW",
---     ["search_confluence"] = "HIGH"
+--     ["search_confluence"] = "HIGH",
+--     ["semantic_search"] = "NONE"
 -- }
 
 -- Configure the settings of individual tools. Keys are "<tool ID>.<field name>", values are
@@ -1073,7 +1082,8 @@ CONFIG["CHAT_TEMPLATES"] = {}
 --     -- organization switched off. A tool has to meet the confidence requirements of the
 --     -- provider in use, so it may stay unavailable even though this template names it.
 --     -- Tool IDs include: web_search, read_web_page, search_confluence
---     -- Selecting search_confluence also selects read_web_page.
+--     -- Selecting search_confluence also selects read_web_page. semantic_search cannot be
+--     -- selected here: it offers itself whenever the chat has data sources to search.
 --     ["ToolIds"] = {
 --         "read_web_page",
 --     },
diff --git a/app/MindWork AI Studio/Program.cs b/app/MindWork AI Studio/Program.cs
index 21524b0e..f64086be 100644
--- a/app/MindWork AI Studio/Program.cs	
+++ b/app/MindWork AI Studio/Program.cs	
@@ -14,6 +14,7 @@ using AIStudio.Tools.Security;
 using AIStudio.Tools.Services;
 using AIStudio.Tools.ToolCallingSystem.Harness;
 using AIStudio.Tools.ToolCallingSystem.ToolCallingImplementations;
+using AIStudio.Tools.ToolCallingSystem.ToolCallingImplementations.SemanticSearch;
 using AIStudio.Tools.ToolCallingSystem.ToolCallingImplementations.WebSearch;
 using AIStudio.Tools.ToolCallingSystem.ToolCallingImplementations.WebSearch.SearXNG;
 using AIStudio.Tools.ToolCallingSystem.ToolCallingImplementations.WebSearch.Staan;
@@ -180,6 +181,7 @@ internal sealed class Program
         builder.Services.AddSingleton<IWebSearchBackend, StaanSearchBackend>();
         builder.Services.AddSingleton<IWebSearchBackend, TavilySearchBackend>();
         builder.Services.AddSingleton<IToolImplementation, WebSearchTool>();
+        builder.Services.AddSingleton<IToolImplementation, SemanticSearchTool>();
         builder.Services.AddSingleton<IToolDefinitionSource, CodeToolDefinitionSource>();
         builder.Services.AddSingleton<ToolRegistry>();
         builder.Services.AddSingleton<ToolExecutor>();