https://github.com/DrSergei created https://github.com/llvm/llvm-project/pull/174343
VS Code 1.95 added [support](https://code.visualstudio.com/updates/v1_95#_tools-for-language-models) for language model tools. It is a simple analogue of MCP server. LLDB already has MCP server implementation, but it needs some manual actions to start, so I prefer to add a simpler way. There are some discussion topics: 1) We should bump the minimal VS Code version that might affect some users. 2) I just copied the tool (execute lldb command) from the original MCP server, but we can provide more DAP-like API (e.g. get all threads, get all variables, ...). WDYT? >From ff54dfb120e058ebde12845a03db07e4e2e5521e Mon Sep 17 00:00:00 2001 From: Druzhkov Sergei <[email protected]> Date: Sun, 28 Dec 2025 21:23:18 +0300 Subject: [PATCH] [lldb-dap] Add language model tool --- lldb/tools/lldb-dap/package-lock.json | 15 +++++++------ lldb/tools/lldb-dap/package.json | 26 +++++++++++++++++++--- lldb/tools/lldb-dap/src-ts/command-tool.ts | 26 ++++++++++++++++++++++ lldb/tools/lldb-dap/src-ts/extension.ts | 2 ++ 4 files changed, 59 insertions(+), 10 deletions(-) create mode 100644 lldb/tools/lldb-dap/src-ts/command-tool.ts diff --git a/lldb/tools/lldb-dap/package-lock.json b/lldb/tools/lldb-dap/package-lock.json index 826f29f70106c..aa895496380eb 100644 --- a/lldb/tools/lldb-dap/package-lock.json +++ b/lldb/tools/lldb-dap/package-lock.json @@ -1,12 +1,12 @@ { "name": "lldb-dap", - "version": "0.2.16", + "version": "0.4.1", "lockfileVersion": 3, "requires": true, "packages": { "": { "name": "lldb-dap", - "version": "0.2.16", + "version": "0.4.1", "license": "Apache 2.0 License with LLVM exceptions", "dependencies": { "chokidar": "^4.0.3" @@ -14,7 +14,7 @@ "devDependencies": { "@types/node": "^18.19.41", "@types/tabulator-tables": "^6.2.10", - "@types/vscode": "1.75.0", + "@types/vscode": "1.95.0", "@types/vscode-webview": "^1.57.5", "@vscode/debugprotocol": "^1.68.0", "@vscode/vsce": "^3.2.2", @@ -25,7 +25,7 @@ "typescript": "^5.7.3" }, "engines": { - "vscode": "^1.75.0" + "vscode": "^1.95.0" } }, "node_modules/@azure/abort-controller": { @@ -856,9 +856,9 @@ "license": "MIT" }, "node_modules/@types/vscode": { - "version": "1.75.0", - "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.75.0.tgz";, - "integrity": "sha512-SAr0PoOhJS6FUq5LjNr8C/StBKALZwDVm3+U4pjF/3iYkt3GioJOPV/oB1Sf1l7lROe4TgrMyL5N1yaEgTWycw==", + "version": "1.95.0", + "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.95.0.tgz";, + "integrity": "sha512-0LBD8TEiNbet3NvWsmn59zLzOFu/txSlGxnv5yAFHCrhG9WvAnR3IvfHzMOs2aeWqgvNjq9pO99IUw8d3n+unw==", "dev": true, "license": "MIT" }, @@ -2656,6 +2656,7 @@ "integrity": "sha512-e9MewbtFo+Fevyuxn/4rrcDAaq0IYxPGLvObpQjiZBMAzB9IGmzlnG9RZy3FFas+eBMu2vA0CszMeduow5dIuQ==", "dev": true, "license": "MIT", + "peer": true, "bin": { "prettier": "bin/prettier.cjs" }, diff --git a/lldb/tools/lldb-dap/package.json b/lldb/tools/lldb-dap/package.json index 9d058fb4fd957..23bebce5315b6 100644 --- a/lldb/tools/lldb-dap/package.json +++ b/lldb/tools/lldb-dap/package.json @@ -22,7 +22,7 @@ "LLDB" ], "engines": { - "vscode": "^1.75.0" + "vscode": "^1.95.0" }, "categories": [ "Debuggers" @@ -33,7 +33,7 @@ "devDependencies": { "@types/node": "^18.19.41", "@types/tabulator-tables": "^6.2.10", - "@types/vscode": "1.75.0", + "@types/vscode": "1.95.0", "@types/vscode-webview": "^1.57.5", "@vscode/debugprotocol": "^1.68.0", "@vscode/vsce": "^3.2.2", @@ -946,6 +946,26 @@ "icon": "$(symbol-module)" } ] - } + }, + "languageModelTools": [ + { + "name": "lldb_dap_command", + "displayName": "Run an lldb command.", + "modelDescription": "Run an lldb command.", + "canBeReferencedInPrompt": true, + "toolReferenceName": "lldb_dap_command", + "inputSchema": { + "type": "object", + "properties": { + "command": { + "type": "string", + "description": "The command and its arguments as a string." + } + }, + "required": [ "command" ] + }, + "when": "debugType == 'lldb-dap'" + } + ] } } diff --git a/lldb/tools/lldb-dap/src-ts/command-tool.ts b/lldb/tools/lldb-dap/src-ts/command-tool.ts new file mode 100644 index 0000000000000..5ecfd8699f636 --- /dev/null +++ b/lldb/tools/lldb-dap/src-ts/command-tool.ts @@ -0,0 +1,26 @@ +import * as vscode from "vscode"; + +export interface CommandArgs { + command: string; +} + +export class CommandTool implements vscode.LanguageModelTool<CommandArgs> { + async invoke( + options: vscode.LanguageModelToolInvocationOptions<CommandArgs>, + token: vscode.CancellationToken, + ): Promise<vscode.LanguageModelToolResult> { + const session = vscode.debug.activeDebugSession; + if (session === undefined) { + return new vscode.LanguageModelToolResult([ + new vscode.LanguageModelTextPart("Error: no debug session is active"), + ]); + } + const response = await session.customRequest("evaluate", { + expression: options.input.command, + context: "repl", + }); + return new vscode.LanguageModelToolResult([ + new vscode.LanguageModelTextPart(response.result), + ]); + } +} diff --git a/lldb/tools/lldb-dap/src-ts/extension.ts b/lldb/tools/lldb-dap/src-ts/extension.ts index 7119cba972fa4..e8f26db2bb038 100644 --- a/lldb/tools/lldb-dap/src-ts/extension.ts +++ b/lldb/tools/lldb-dap/src-ts/extension.ts @@ -1,6 +1,7 @@ import * as path from "path"; import * as vscode from "vscode"; +import { CommandTool } from "./command-tool"; import { LLDBDapDescriptorFactory } from "./debug-adapter-factory"; import { DisposableContext } from "./disposable-context"; import { LaunchUriHandler } from "./uri-launch-handler"; @@ -52,6 +53,7 @@ export class LLDBDapExtension extends DisposableContext { new ModulesDataProvider(sessionTracker), ), vscode.window.registerUriHandler(new LaunchUriHandler()), + vscode.lm.registerTool("lldb_dap_command", new CommandTool()), ); this.pushSubscription(vscode.commands.registerCommand( _______________________________________________ lldb-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
