update

src/tools/registry.jl

@@ -1,12 +1,51 @@
 module toolRegistry
 
-export loadTools, registerTool, getTools, listTools, clearTools
+export loadTools, registerTool, getTools, clearTools
 
 using ..type
 
 # Global registry — populated at runtime by loadTools() or registerTool()
 const _registry = Vector{agentTool}()
 
+# Auto-register the built-in listTools tool
+function __init__()
+    registerTool(_listTool())
+end
+
+"""
+List tool definition — lets the agent query available tools for collision detection
+when creating new tools via writeTool.
+"""
+function _listTool()::agentTool
+    return agentTool(
+        name = "listTools",
+        label = "List Tools",
+        description = "List all available tools with their names, labels, and descriptions. Use this before creating a new tool to check for name collisions.",
+        inputSchema = Dict{String,Any}(
+            "type" => "object",
+            "properties" => Dict{String,Any}(),
+            "required" => Any[]
+        ),
+        execute = (toolCallId, args, signal, onPartialResult) -> begin
+            tools = getTools()
+            if isempty(tools)
+                result_text = "No tools registered."
+            else
+                lines = String["- $(t.name): $(t.label) — $(t.description)" for t in tools]
+                result_text = "Available tools:\n" * join(lines, "\n")
+            end
+            return agentToolResult(
+                [textContent(result_text)],
+                Dict{Any,Any}("count" => length(tools)),
+                nothing, false
+            )
+        end,
+        prepareArguments = nothing,
+        validateRequiredArgs = nothing,
+        parallelToolExecute = false
+    )
+end
+
 """
 Load all tool modules from a directory.
 
@@ -120,16 +159,6 @@ function getTools()::Vector{agentTool}
     return deepcopy(_registry)
 end
 
-"""
-List all registered tool names and labels.
-
-# Returns
-- `Vector{Tuple{String,String}}`: Pairs of (name, label)
-"""
-function listTools()::Vector{Tuple{String,String}}
-    return [(t.name, t.label) for t in _registry]
-end
-
 """
 Clear all registered tools from the global registry.
 """