feat(files): implement file storage functionality with save, load, and list operations

internal/mcpserver/server.go

@@ -11,19 +11,20 @@ import (
 )
 
 type ToolSet struct {
-	Capture   *tools.CaptureTool
-	Search    *tools.SearchTool
-	List      *tools.ListTool
-	Stats     *tools.StatsTool
-	Get       *tools.GetTool
-	Update    *tools.UpdateTool
-	Delete    *tools.DeleteTool
-	Archive   *tools.ArchiveTool
-	Projects  *tools.ProjectsTool
-	Context   *tools.ContextTool
-	Recall    *tools.RecallTool
-	Summarize *tools.SummarizeTool
-	Links     *tools.LinksTool
+	Capture     *tools.CaptureTool
+	Search      *tools.SearchTool
+	List        *tools.ListTool
+	Stats       *tools.StatsTool
+	Get         *tools.GetTool
+	Update      *tools.UpdateTool
+	Delete      *tools.DeleteTool
+	Archive     *tools.ArchiveTool
+	Projects    *tools.ProjectsTool
+	Context     *tools.ContextTool
+	Recall      *tools.RecallTool
+	Summarize   *tools.SummarizeTool
+	Links       *tools.LinksTool
+	Files       *tools.FilesTool
 	Backfill    *tools.BackfillTool
 	Reparse     *tools.ReparseMetadataTool
 	Household   *tools.HouseholdTool
@@ -124,6 +125,21 @@ func New(cfg config.MCPConfig, toolSet ToolSet) http.Handler {
 		Description: "Retrieve explicit links and semantic neighbors for a thought.",
 	}, toolSet.Links.Related)
 
+	addTool(server, &mcp.Tool{
+		Name:        "save_file",
+		Description: "Store a base64-encoded file such as an image, document, or audio clip, optionally linking it to a thought.",
+	}, toolSet.Files.Save)
+
+	addTool(server, &mcp.Tool{
+		Name:        "load_file",
+		Description: "Load a previously stored file by id and return its metadata and base64 content.",
+	}, toolSet.Files.Load)
+
+	addTool(server, &mcp.Tool{
+		Name:        "list_files",
+		Description: "List stored files, optionally filtered by thought, project, or kind.",
+	}, toolSet.Files.List)
+
 	addTool(server, &mcp.Tool{
 		Name:        "backfill_embeddings",
 		Description: "Generate missing embeddings for stored thoughts using the active embedding model.",