Add MCP regenerate_form_code(path) to regenerate modified swing-based forms in Netbeans

CHANGELOG.md

@@ -1,3 +1,5 @@
+- Fixed file changes opening a diff tab for review while Claude Code is in auto, accept-edits or bypass-permissions mode, when the plugin did not recognize the mode shown in Claude's status line
+- Added the `regenerate_form_code` MCP tool: after Claude edits a Swing form (`.form`), it can regenerate the form's code in the IDE, including new event handler methods, instead of editing the generated code by hand
 # 1.3.45 (2026-10-28)
 - Fixed edit-mode detection and switching while background agents or shells are listed under the status line
 # 1.3.42 (2026-10-22)

CLAUDE.md

@@ -176,7 +176,7 @@ The plugin follows an MVC structure for session management:
 | `ui/common/` | Shared input components: `AtCompletionPopup` — @-triggered path popup; `AtPathHighlighter` — blue token highlight; `FileDropHandler` — DnD + Ctrl+V → @path insertion; `ShortcutMatcher` — key→shortcut match with KEY_TYPED suppression; `TextComponentDecorator` — wires all the above; `DecoratedTextArea/TextField`, `TextContextMenu`, `RangeHighlightable` |
 | `settings/` | `ClaudeCodePreferences` — NbPreferences wrapper (keys: `contextMenuSessionMode` default CONTINUE_LAST, `sessionListLimit` default 30); `ClaudeCodeOptionsPanelController` / `ClaudeCodeOptionsPanel` — Tools→Options (General + Profiles tabs); `ClaudeProfile`, `ClaudeProfileStore` — named profiles with isolated `CLAUDE_CONFIG_DIR`, auth, proxy, extra env vars; `ClaudeProjectProperties` — per-project profile assignment |
 | `actions/` | `ClaudeCodeAction` — toolbar button; `OpenWithClaudeAction` — project node context menu; `PromptFavoriteAction` — dynamically registered action per favorite for Keymap API |
-| `io.github.nbplugins.claudecodegui.mcp` | `MCPSseServer` — Jetty `/sse` `/messages` `/hook` `/openai-proxy/*`; `NetBeansMCPHandler` — MCP dispatcher + PreToolUse hook; `tools/` — `OpenDiff`, `PermissionPromptTool`, `DiffTabTracker`, `GetDiagnostics`, `GetOpenEditors`, `GetCurrentSelection`, `OpenFile` |
+| `io.github.nbplugins.claudecodegui.mcp` | `MCPSseServer` — Jetty `/sse` `/messages` `/hook` `/openai-proxy/*`; `NetBeansMCPHandler` — MCP dispatcher + PreToolUse hook; `tools/` — `OpenDiff`, `PermissionPromptTool`, `DiffTabTracker`, `GetDiagnostics`, `GetOpenEditors`, `GetCurrentSelection`, `OpenFile`, `RegenerateFormCode` (drives the non-API form module via reflection to regenerate a `.form`'s guarded code) |
 | `io.github.nbplugins.claudecodegui.openaiproxy` | `OpenAIProxyConfig` — per-session config snapshot; `OpenAIProxyServlet` — translates Anthropic → OpenAI requests and responses; `AnthropicToOpenAITranslator` — stateless translation logic including streaming SSE state machine |
 | `org.openbeans.claude.netbeans` | **Legacy package — do not add new code here and avoid modifying existing code.** Contains: `ClaudeCodeStatusService`, `ClaudeCodeStatusLineElement`, `EditorUtils`, `NbUtils`; `tools/` — `AsyncHandler`, `AsyncResponse`, `GetWorkspaceFolders`, `CheckDocumentDirty`, `SaveDocument`, `CloseTab`, `CloseAllDiffTabs` |
 

docs/user-manual.md

@@ -782,6 +782,10 @@ The plugin exposes a set of IDE tools to Claude via an MCP (Model Context Protoc
 | `permission_prompt` | Shows proposed file changes in the diff panel and waits for your approval |
 | `show_markdown` | Renders markdown text directly in a Markdown Preview tab; accepts the markdown content plus optional title and file path |
 | `show_markdown_file` | Opens a live-updating Markdown Preview tab for an existing `.md` file on disk; the tab automatically refreshes when the file changes |
+| `regenerate_form_code` | Regenerates the GUI Builder code (`initComponents()` and the variables declaration) of a Swing form's `.java` file from its edited `.form` file, exactly as the NetBeans GUI Builder does, and saves the form (NetBeans re-saves the `.form` in its own formatting). Claude calls it after changing a `.form` file. An open designer is reloaded from it. Refused if the form has unsaved changes in the IDE |
+
+> [!NOTE]
+> **`regenerate_form_code` limitations:** the tool relies on internals of the NetBeans form module (which has no public API), so it may stop working after an IDE update; it then fails with an "Unsupported NetBeans form editor version" error without changing any file. It requires the Swing GUI Builder to be enabled. Because it writes the `.java` and `.form` files, Claude Code asks for your permission before each call.
 
 ### Prompts that work well with IDE tools