fix: smarter CodeMode parse — skip execute, show children with extracted args

Проблемы исправлены:
- execute с детьми больше не показывается дубликатом
- Args извлекаются из кода балансирующим парсером скобок
- Показываются только дочерние инструменты с их аргументами из кода
- execute без детей работает как раньше

index.ts

@@ -137,18 +137,77 @@ async function runPlugin(ctx: any, options: any, dataDir: string) {
     // e.g. tools.duckduckgo.search({ query: "..." })
     // =============================================================================
 
-    function parseCodeModeTools(code: string): string[] {
+    interface ChildToolInfo {
-      const tools: string[] = []
+      name: string
-      // Match tools.<word>.<word>( — nested tool calls in CodeMode
+      args: string
+    }
+
+    function parseCodeModeTools(code: string): ChildToolInfo[] {
+      const results: ChildToolInfo[] = []
+      const seen = new Set<string>()
       const regex = /tools\.(\w+)\.(\w+)\s*\(/g
       let match
+
       while ((match = regex.exec(code)) !== null) {
         const toolName = `${match[1]}_${match[2]}`
-        if (!tools.includes(toolName)) {
+        if (seen.has(toolName)) continue
-          tools.push(toolName)
+        seen.add(toolName)
+
+        // Extract the full argument block starting from the (
+        const openParenPos = match.index + match[0].indexOf("(")
+        const args = extractArgumentBlock(code, openParenPos)
+        results.push({ name: toolName, args })
+      }
+
+      return results
+    }
+
+    /**
+     * Extract argument block from code starting at the opening parenthesis.
+     * Handles nested parentheses, brackets, and braces.
+     * e.g. for tools.duckduckgo.fetch_content({ url: url, max_length: 5000 })
+     * returns "{ url: url, max_length: 5000 }"
+     */
+    function extractArgumentBlock(code: string, openParenPos: number): string {
+      let depth = 0
+      let start = openParenPos
+      let end = openParenPos
+
+      // Find the opening character: (, {, [, or "
+      while (start < code.length) {
+        const ch = code[start]
+        if (ch === "(" || ch === "{" || ch === "[" || ch === '"') break
+        start++
+      }
+
+      if (start >= code.length) return "(variable)"
+
+      const openCh = code[start]
+      const closeCh = openCh === "(" ? ")" : openCh === "{" ? "}" : openCh === "[" ? "]" : '"'
+
+      for (let i = start; i < code.length; i++) {
+        const ch = code[i]
+        if (ch === openCh) depth++
+        else if (ch === closeCh) {
+          depth--
+          if (depth === 0) {
+            end = i + 1
+            break
           }
         }
-      return tools
+        // Skip string literals to avoid counting quotes inside strings
+        if (ch === '"' || ch === "'") {
+          let j = i + 1
+          while (j < code.length && code[j] !== ch) {
+            if (code[j] === "\\") j++
+            j++
+          }
+          i = j
+        }
+      }
+
+      const result = code.slice(start, end).trim()
+      return result || "(variable)"
     }
 
     // =============================================================================
@@ -235,9 +294,15 @@ async function runPlugin(ctx: any, options: any, dataDir: string) {
               const code = parsedArgs?.code || ""
               if (code) {
                 const childTools = parseCodeModeTools(code)
-                for (const name of childTools) {
+                for (const child of childTools) {
-                  if (!step.tools.find(t => t.name === name)) {
+                  if (!step.tools.find(t => t.name === child.name)) {
-                    step.tools.push({ toolID: `${toolID}/${name}`, name, args: "", result: "", failed: false })
+                    step.tools.push({
+                      toolID: `${toolID}/${child.name}`,
+                      name: child.name,
+                      args: child.args,
+                      result: "",
+                      failed: false,
+                    })
                   }
                 }
               }
@@ -366,19 +431,19 @@ async function runPlugin(ctx: any, options: any, dataDir: string) {
 
       // Tool calls
       if (step.tools.length > 0) {
-        for (const tool of step.tools) {
+        // Check if any tool is an execute with child tool calls
-          // Check if this is an execute tool with child tool calls
+        const executeTool = step.tools.find(
-          // Child tools have toolID like "parentID/toolName"
+          (t) => t.name === "execute" && t.toolID.includes("/"),
-          const isExecuteWithChildren = tool.name === "execute" && tool.toolID.includes("/")
+        )
-          const childTools = isExecuteWithChildren ? step.tools.filter(t => t.toolID.startsWith(tool.toolID + "/")) : []
+        const childTools = executeTool
+          ? step.tools.filter((t) => t.toolID.startsWith(executeTool.toolID + "/"))
+          : []
 
-          if (isExecuteWithChildren && childTools.length > 0) {
+        if (childTools.length > 0) {
-            // Expand execute → individual spoilers for each child tool
+          // Execute has child tool calls — show only the children, skip execute
           for (const child of childTools) {
-              // Extract args from the code for this child tool
-              const childArgs = extractChildToolArgs(tool.args, child.name)
             parts.push(`<details>\n<summary>🔧 ${child.name}</summary>\n\n`)
-              parts.push(`<b>Args:</b>\n\`\`\`\n${childArgs}\n\`\`\`\n\n`)
+            parts.push(`<b>Args:</b>\n\`\`\`\n${child.args}\n\`\`\`\n\n`)
             if (child.failed) {
               parts.push(`<b>Failed:</b> ${child.result}\n\n`)
             } else if (child.result) {
@@ -387,7 +452,8 @@ async function runPlugin(ctx: any, options: any, dataDir: string) {
             parts.push(`</details>`)
           }
         } else {
-            // Normal tool (or execute without children)
+          // No child tool calls — show tools normally (including execute as-is)
+          for (const tool of step.tools) {
             parts.push(`<details>\n<summary>🔧 ${tool.name}</summary>\n\n`)
             parts.push(`<b>Args:</b>\n\`\`\`\n${tool.args}\n\`\`\`\n\n`)
             if (tool.failed) {
@@ -409,28 +475,6 @@ async function runPlugin(ctx: any, options: any, dataDir: string) {
       return parts.join("\n")
     }
 
-    // Extract args for a child tool from the execute code
-    function extractChildToolArgs(code: string, toolName: string): string {
-      try {
-        const args = JSON.parse(code)
-        const codeStr = args?.code || ""
-        // Match tools.<server>.<toolName>(...) and extract the arguments
-        const regex = new RegExp(`tools\\.\\w+\\.${escapeRegex(toolName.replace("_", "."))}\\s*\\(([^)]*)\\)`, "g")
-        const matches: string[] = []
-        let match
-        while ((match = regex.exec(codeStr)) !== null) {
-          matches.push(match[1].trim())
-        }
-        return matches.join("\n") || "(parsed from code)"
-      } catch {
-        return "(parsed from code)"
-      }
-    }
-
-    function escapeRegex(str: string): string {
-      return str.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")
-    }
-
     // =============================================================================
     // Send message to Matrix (reuses existing sendReply/sendNotice)
     // =============================================================================