fix(discovery): load project .opencode config files

packages/coding-agent/src/discovery/opencode.ts

@@ -77,9 +77,11 @@ async function loadJsonConfig(
 
 /**
  * OpenCode config sources in ascending effective precedence (lowest first):
- * user `opencode.json` → user `opencode.jsonc` → project `opencode.json` →
- * project `opencode.jsonc`. This matches how OpenCode merges configs — project
- * overrides user, and within a scope `opencode.jsonc` overrides `opencode.json`.
+ * user `opencode.json` → user `opencode.jsonc` → project-root
+ * `opencode.json` → project-root `opencode.jsonc` → project `.opencode/opencode.json`
+ * → project `.opencode/opencode.jsonc`. This matches how OpenCode merges configs:
+ * project overrides user, `.opencode` overrides project-root config, and within
+ * a directory `opencode.jsonc` overrides `opencode.json`.
  *
  * Both consumers apply this order low-to-high: settings deep-merge in item
  * order (last wins) and `loadMCPServers` deep-merges each server across layers
@@ -94,6 +96,10 @@ function getConfigSources(ctx: LoadContext): OpenCodeConfigSource[] {
 	for (const filename of CONFIG_FILENAMES) {
 		sources.push({ path: path.join(ctx.cwd, filename), level: "project" });
 	}
+	for (const filename of CONFIG_FILENAMES) {
+		const configPath = getProjectPath(ctx, "opencode", filename);
+		if (configPath) sources.push({ path: configPath, level: "project" });
+	}
 	return sources;
 }
 
@@ -419,7 +425,7 @@ registerProvider(contextFileCapability.id, {
 registerProvider(mcpCapability.id, {
 	id: PROVIDER_ID,
 	displayName: DISPLAY_NAME,
-	description: "Load MCP servers from opencode.json mcp key",
+	description: "Load MCP servers from OpenCode config files",
 	priority: PRIORITY,
 	load: loadMCPServers,
 });
@@ -451,7 +457,7 @@ registerProvider(slashCommandCapability.id, {
 registerProvider(settingsCapability.id, {
 	id: PROVIDER_ID,
 	displayName: DISPLAY_NAME,
-	description: "Load settings from opencode.json",
+	description: "Load settings from OpenCode config files",
 	priority: PRIORITY,
 	load: loadSettings,
 });

packages/coding-agent/test/discovery/opencode.test.ts

@@ -88,6 +88,42 @@ describe("OpenCode MCP discovery", () => {
 		);
 	});
 
+	test("loads project .opencode config after project-root config", async () => {
+		const projectDir = path.join(tempDir, "project");
+		const projectConfigDir = path.join(projectDir, ".opencode");
+		await fs.mkdir(projectConfigDir, { recursive: true });
+
+		await fs.writeFile(
+			path.join(projectDir, "opencode.json"),
+			JSON.stringify({
+				model: "root-model",
+				mcp: { shared: { type: "local", command: ["root-server"] } },
+			}),
+		);
+		await fs.writeFile(
+			path.join(projectConfigDir, "opencode.jsonc"),
+			`{
+				// Project .opencode config has higher precedence.
+				"model": "dotdir-model",
+				"mcp": { "shared": { "command": ["dotdir-server"] } }
+			}`,
+		);
+
+		const [servers, discoveredSettings] = await Promise.all([
+			loadOpenCodeMcpConfig(projectDir),
+			loadOpenCodeSettings(projectDir),
+		]);
+
+		expect(servers.filter(server => server.name === "shared")).toEqual([
+			expect.objectContaining({ command: "dotdir-server", transport: "stdio" }),
+		]);
+		expect(discoveredSettings.at(-1)).toMatchObject({
+			path: path.join(projectConfigDir, "opencode.jsonc"),
+			level: "project",
+			data: expect.objectContaining({ model: "dotdir-model" }),
+		});
+	});
+
 	test("resolves same-named MCP servers by OpenCode precedence", async () => {
 		const projectDir = path.join(tempDir, "project");
 		const userConfigDir = path.join(tempDir, ".config", "opencode");