diff --git a/agents/_template_robot/config.yaml b/agents/_template_robot/config.yaml
index ded4a43..b38ef3d 100644
--- a/agents/_template_robot/config.yaml
+++ b/agents/_template_robot/config.yaml
@@ -44,7 +44,8 @@ matrix:
     admin: []
 
   filters:
-    command_prefix: "!"
+    command_prefix: "!"         # usar "" para permitir comandos sin prefijo !
+    # command_prefix: ""        # sin prefijo: todo mensaje es un posible comando
     mention_respond: false      # robots no responden a menciones (no hay LLM)
     dm_respond: false           # robots no responden a DMs (no hay LLM)
     ignore_bots: true
diff --git a/agents/handler.go b/agents/handler.go
index c1f83da..6e83dd3 100644
--- a/agents/handler.go
+++ b/agents/handler.go
@@ -74,8 +74,11 @@ func (a *Agent) handleEvent(ctx context.Context, msgCtx decision.MessageContext,
 		} else {
 			// Unknown command — never falls through to rules or LLM
 			a.logger.Info("command_unknown", "command", msgCtx.Command)
-			_ = a.sendReply(ctx, roomID, msgCtx.EventID, msgCtx.ThreadID,
-				fmt.Sprintf("Comando desconocido: `!%s`. Usa `!help` para ver comandos disponibles.", msgCtx.Command))
+			unknownMsg := fmt.Sprintf("Comando desconocido: `!%s`. Usa `!help` para ver comandos disponibles.", msgCtx.Command)
+			if a.cfg.Matrix.Filters.CommandPrefix == "" {
+				unknownMsg = fmt.Sprintf("Comando desconocido: `%s`. Usa `help` para ver comandos disponibles.", msgCtx.Command)
+			}
+			_ = a.sendReply(ctx, roomID, msgCtx.EventID, msgCtx.ThreadID, unknownMsg)
 			return
 		}
 	}
diff --git a/agents/robot.go b/agents/robot.go
index b2de743..bcf8dcf 100644
--- a/agents/robot.go
+++ b/agents/robot.go
@@ -206,8 +206,11 @@ func (r *Robot) handleEvent(ctx context.Context, msgCtx decision.MessageContext,
 
 	// Unknown command
 	r.logger.Info("command_unknown", "command", msgCtx.Command)
-	_ = r.sendReply(ctx, roomID, msgCtx.EventID, msgCtx.ThreadID,
-		fmt.Sprintf("Comando desconocido: `!%s`. Usa `!help` para ver comandos disponibles.", msgCtx.Command))
+	unknownMsg := fmt.Sprintf("Comando desconocido: `!%s`. Usa `!help` para ver comandos disponibles.", msgCtx.Command)
+	if r.cfg.Matrix.Filters.CommandPrefix == "" {
+		unknownMsg = fmt.Sprintf("Comando desconocido: `%s`. Usa `help` para ver comandos disponibles.", msgCtx.Command)
+	}
+	_ = r.sendReply(ctx, roomID, msgCtx.EventID, msgCtx.ThreadID, unknownMsg)
 }
 
 // sendReply sends a markdown reply that respects thread context.
@@ -224,13 +227,15 @@ func (r *Robot) cmdHelp(_ context.Context, _ decision.MessageContext) string {
 	var b strings.Builder
 	b.WriteString("**Comandos disponibles:**\n\n")
 
+	prefix := r.cfg.Matrix.Filters.CommandPrefix // "!" or ""
+
 	// Built-in commands appropriate for robots
 	robotBuiltins := []command.Spec{
-		{Name: "help", Aliases: []string{"h"}, Description: "Lista comandos disponibles", Usage: "!help"},
-		{Name: "ping", Description: "Alive check", Usage: "!ping"},
-		{Name: "status", Description: "Info del robot: uptime", Usage: "!status"},
-		{Name: "info", Description: "Nombre, version y descripcion", Usage: "!info"},
-		{Name: "version", Aliases: []string{"v"}, Description: "Version del robot", Usage: "!version"},
+		{Name: "help", Aliases: []string{"h"}, Description: "Lista comandos disponibles", Usage: prefix + "help"},
+		{Name: "ping", Description: "Alive check", Usage: prefix + "ping"},
+		{Name: "status", Description: "Info del robot: uptime", Usage: prefix + "status"},
+		{Name: "info", Description: "Nombre, version y descripcion", Usage: prefix + "info"},
+		{Name: "version", Aliases: []string{"v"}, Description: "Version del robot", Usage: prefix + "version"},
 	}
 	for _, spec := range robotBuiltins {
 		writeSpec(&b, spec)
diff --git a/internal/config/schema.go b/internal/config/schema.go
index 8a0838a..a8f4b77 100644
--- a/internal/config/schema.go
+++ b/internal/config/schema.go
@@ -263,6 +263,10 @@ type RoomsCfg struct {
 }
 
 type FiltersCfg struct {
+	// CommandPrefix is the prefix required for commands (e.g. "!" means "!help").
+	// Set to "" (empty) to allow commands without prefix — useful for robots where
+	// every message is a potential command. When empty, "!help" still works for
+	// backward compatibility (the leading "!" is stripped automatically).
 	CommandPrefix        string   `yaml:"command_prefix"`
 	MentionRespond       bool     `yaml:"mention_respond"`
 	DMRespond            bool     `yaml:"dm_respond"`
diff --git a/pkg/message/parse.go b/pkg/message/parse.go
index 918eaa2..460310a 100644
--- a/pkg/message/parse.go
+++ b/pkg/message/parse.go
@@ -38,12 +38,33 @@ func Parse(body, senderID, roomID string, powerLevel int, isDM bool, opts ParseO
 		}
 	}
 
-	// Parse command
-	if opts.CommandPrefix != "" && strings.HasPrefix(body, opts.CommandPrefix) {
-		parts := strings.Fields(strings.TrimPrefix(body, opts.CommandPrefix))
+	// Parse command.
+	// When CommandPrefix is non-empty (e.g. "!"), only messages starting with that
+	// prefix are treated as commands.
+	// When CommandPrefix is empty, every message is a potential command: the first
+	// token is the command name. If it starts with "!", the "!" is stripped for
+	// backward compatibility (so both "help" and "!help" work the same).
+	switch {
+	case opts.CommandPrefix != "":
+		// Standard mode: require prefix
+		if strings.HasPrefix(body, opts.CommandPrefix) {
+			parts := strings.Fields(strings.TrimPrefix(body, opts.CommandPrefix))
+			if len(parts) > 0 {
+				ctx.Command = strings.ToLower(parts[0])
+				ctx.Args = parts[1:]
+			}
+		}
+	case opts.CommandPrefix == "":
+		// No-prefix mode: treat first token as command
+		parts := strings.Fields(body)
 		if len(parts) > 0 {
-			ctx.Command = strings.ToLower(parts[0])
-			ctx.Args = parts[1:]
+			cmd := parts[0]
+			// Strip leading "!" for backward compatibility
+			cmd = strings.TrimPrefix(cmd, "!")
+			if cmd != "" {
+				ctx.Command = strings.ToLower(cmd)
+				ctx.Args = parts[1:]
+			}
 		}
 	}