feat(opencode): Add output channel logging and minimal variant

package.json

@@ -2,7 +2,7 @@
     "name": "ai-commit-ext",
     "displayName": "AI Commit Ext",
     "description": "Generate commit messages using OpenCode AI",
-    "version": "1.0.0",
+    "version": "1.0.1",
     "publisher": "local",
     "engines": {
         "vscode": "^1.110.0"

src/extension.ts

@@ -41,7 +41,11 @@ async function handleGenerateCommitMessage(): Promise<void> {
     const showNotification = config.get<boolean>("showNotification", true);
 
     try {
-        const opencodeAvailable = await isOpenCodeAvailable();
+        const [opencodeAvailable, gitExtension] = await Promise.all([
+            isOpenCodeAvailable(),
+            vscode.extensions.getExtension<GitExtension>("vscode.git"),
+        ]);
+
         if (!opencodeAvailable) {
             if (showNotification) {
                 vscode.window.showErrorMessage(
@@ -51,8 +55,6 @@ async function handleGenerateCommitMessage(): Promise<void> {
             return;
         }
 
-        const gitExtension =
-            vscode.extensions.getExtension<GitExtension>("vscode.git");
         if (!gitExtension) {
             if (showNotification) {
                 vscode.window.showErrorMessage("Git extension not found");
@@ -114,3 +116,5 @@ async function handleGenerateCommitMessage(): Promise<void> {
 }
 
 export function deactivate(): void {}
+
+export const output = vscode.window.createOutputChannel("ai-commit-ext");

src/opencodeService.ts

@@ -1,11 +1,14 @@
 import { exec, spawn, ExecException } from "child_process";
 import * as vscode from "vscode";
 import { getGitDiff, getRepositoryRoot } from "./gitService";
+import { output } from "./extension";
 
 export interface GenerateOptions {
     model?: string;
 }
 
+let opencodeAvailableCache: boolean | null = null;
+
 const DEFAULT_PROMPT = `You are a helpful assistant that generates git commit messages.
 Generate a concise Conventional Commit message (max 72 characters for the subject line).
 Format: <type>(<scope>): <description>
@@ -15,9 +18,13 @@ Types: feat, fix, refactor, docs, style, test, chore, perf, ci, build, revert
 Only output the commit message, nothing else.`;
 
 export async function isOpenCodeAvailable(): Promise<boolean> {
+    if (opencodeAvailableCache !== null) {
+        return opencodeAvailableCache;
+    }
     return new Promise((resolve) => {
         exec("which opencode", (error: ExecException | null) => {
-            resolve(!error);
+            opencodeAvailableCache = !error;
+            resolve(opencodeAvailableCache);
         });
     });
 }
@@ -32,8 +39,10 @@ export async function generateCommitMessage(
         );
     }
 
-    const diff = await getGitDiff();
-    const repoRoot = await getRepositoryRoot();
+    const [diff, repoRoot] = await Promise.all([
+        getGitDiff(),
+        getRepositoryRoot(),
+    ]);
 
     const config = vscode.workspace.getConfiguration("aiCommitExt");
     const model = options.model || config.get<string>("model", "");
@@ -45,8 +54,17 @@ ${diff}
 
 Generate a concise Conventional Commit message for these changes:`;
 
+    const log = `[${Date.now()}]\r\n${prompt}`;
+    output.appendLine(log);
+
     return new Promise((resolve, reject) => {
-        const args: string[] = ["run", "--format", "default"];
+        const args: string[] = [
+            "run",
+            "--format",
+            "default",
+            "--variant",
+            "minimal",
+        ];
 
         if (model) {
             args.push("--model", model);