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nachawatinachawati
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feat(vscode): browser-local llm chat with self-hosted model files
1 parent 7bc7719 commit e5ae5e8

13 files changed

Lines changed: 809 additions & 27 deletions

‎.prettierignore‎

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@@ -2,3 +2,4 @@ dist
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build
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.react-router
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packages/ide/vscode-web/
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packages/ide/models/

‎packages/ide/.gitignore‎

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@@ -1,3 +1,4 @@
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vscode-web/
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dist/
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node_modules/
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models/

‎packages/ide/src/build-static.ts‎

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@@ -279,7 +279,7 @@ writeFileSync(
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{ key: "Access-Control-Allow-Private-Network", value: "true" },
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{ key: "Cross-Origin-Resource-Policy", value: "cross-origin" },
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{ key: "Cross-Origin-Opener-Policy", value: "same-origin" },
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{ key: "Cross-Origin-Embedder-Policy", value: "require-corp" },
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{ key: "Cross-Origin-Embedder-Policy", value: "credentialless" },
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],
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},
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],

‎packages/ide/src/server.ts‎

Lines changed: 15 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -155,10 +155,10 @@ app.use((req, res, next) => {
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if (coi === "1") {
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res.setHeader("Cross-Origin-Opener-Policy", "same-origin");
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} else if (coi === "2") {
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res.setHeader("Cross-Origin-Embedder-Policy", "require-corp");
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res.setHeader("Cross-Origin-Embedder-Policy", "credentialless");
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} else if (coi === "3" || coi === "") {
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res.setHeader("Cross-Origin-Opener-Policy", "same-origin");
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res.setHeader("Cross-Origin-Embedder-Policy", "require-corp");
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res.setHeader("Cross-Origin-Embedder-Policy", "credentialless");
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}
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next();
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});
@@ -174,6 +174,19 @@ app.use("/static/devextensions", express.static(MODELSCRIPT_EXT_DIR, { dotfiles:
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// GitHub FS extension
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app.use("/static/extensions/github-fs", express.static(GITHUB_FS_EXT_DIR, { dotfiles: "allow" }));
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// WebLLM model files (self-hosted to avoid COEP issues with external CDNs)
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// WebLLM constructs URLs as ${model}/resolve/main/${file} (HuggingFace pattern).
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// Strip /resolve/main/ so local files resolve correctly.
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const MODELS_DIR = resolve(__dirname, "..", "models");
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app.use(
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"/api/models",
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(req, _res, next) => {
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req.url = req.url.replace(/\/resolve\/main\//g, "/");
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next();
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},
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express.static(MODELS_DIR),
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);
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// Favicon
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const morselFavicon = resolve(__dirname, "..", "..", "morsel", "public", "favicon.ico");
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app.get("/favicon.ico", (req, res) => {

‎packages/vscode/package.json‎

Lines changed: 13 additions & 18 deletions
Original file line numberDiff line numberDiff line change
@@ -38,15 +38,6 @@
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"watch": "webpack --watch"
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},
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"contributes": {
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"chatParticipants": [
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{
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"id": "modelscript.chat",
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"fullName": "ModelScript AI",
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"name": "modelscript",
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"description": "Modelica language assistant — ask about models, MSL components, simulation, and diagnostics",
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"isSticky": true
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}
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],
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"commands": [
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{
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"command": "modelscript.openDiagram",
@@ -76,6 +67,11 @@
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"command": "modelscript.autoLayout",
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"title": "ModelScript: Auto Layout",
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"icon": "$(wand)"
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},
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{
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"command": "modelscript.openChat",
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"title": "ModelScript: Open AI Chat",
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"icon": "$(comment-discussion)"
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}
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],
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"configuration": [
@@ -116,6 +112,13 @@
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"path": "./syntaxes/modelica.tmLanguage.json"
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}
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],
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"keybindings": [
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{
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"command": "modelscript.openChat",
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"key": "ctrl+alt+i",
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"mac": "cmd+alt+i"
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}
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],
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"languageModelTools": [
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{
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"name": "modelscript_flatten",
@@ -356,13 +359,5 @@
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"galleryBanner": {
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"color": "#0d1b2a",
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"theme": "dark"
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},
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"enabledApiProposals": [
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"chatParticipantAdditions",
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"chatParticipantPrivate",
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"chatProvider",
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"defaultChatParticipant",
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"languageModelSystem",
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"contribLanguageModelToolSets"
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]
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}
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}

‎packages/vscode/src/browserClientMain.ts‎

Lines changed: 20 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -2,7 +2,7 @@ import * as vscode from "vscode";
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import { Uri, commands, workspace } from "vscode";
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import { LanguageClientOptions } from "vscode-languageclient";
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import { LanguageClient } from "vscode-languageclient/browser";
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import { registerChatParticipant } from "./chatParticipant";
5+
import { ChatPanel } from "./chatPanel";
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import { DiagramEditorProvider } from "./diagramEditorProvider";
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import { LibraryTreeProvider } from "./libraryTreeProvider";
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import { registerLLMProvider } from "./llmProvider";
@@ -146,10 +146,25 @@ export async function activate(context: vscode.ExtensionContext) {
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await client.start();
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console.log("ModelScript language server is ready");
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149-
// Register AI integration components
150-
registerLLMProvider(context);
151-
registerChatParticipant(context);
152-
registerMCPTools(context, client);
149+
// Register AI integration components (proposed APIs — may not be available in web builds)
150+
try {
151+
registerLLMProvider(context);
152+
} catch {
153+
/* proposed API not available */
154+
}
155+
// Note: registerChatParticipant requires a chatParticipants manifest entry — use the custom ChatPanel instead
156+
try {
157+
registerMCPTools(context, client);
158+
} catch {
159+
/* proposed API not available */
160+
}
161+
162+
// Custom chat panel (works without VS Code Chat API / Copilot)
163+
context.subscriptions.push(
164+
vscode.commands.registerCommand("modelscript.openChat", () => {
165+
if (client) ChatPanel.createOrShow(context.extensionUri, client);
166+
}),
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);
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154169
// Output channel for script execution
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const outputChannel = vscode.window.createOutputChannel("ModelScript Output");

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