diff --git a/package.json b/package.json
index 4d83d87..3880916 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,10 @@
   "description": "Test execution, baseline management, and threshold evaluation for quality gates.",
   "type": "module",
   "module": "index.ts",
+  "sideEffects": false,
+  "engines": {
+    "bun": ">=1.0.0"
+  },
   "bin": {
     "opencode-auto-qcgates": "./src/cli.ts"
   },
@@ -25,7 +29,8 @@
   ],
   "scripts": {
     "check": "tsc --noEmit",
-    "test": "bun test"
+    "test": "bun test",
+    "prepublishOnly": "bun run check && bun test"
   },
   "keywords": ["opencode", "testing", "baselining", "quality-gates"],
   "license": "MIT",
diff --git a/plugin.ts b/plugin.ts
index 4490857..00a3615 100644
--- a/plugin.ts
+++ b/plugin.ts
@@ -1,50 +1,118 @@
-import type { Plugin } from "@opencode-ai/plugin";
-import { install, getGlobalConfigPath, getLocalConfigPath, getPackageVersion, type Scope } from "./src/installer.ts";
+import type { Plugin, Config } from "@opencode-ai/plugin";
+import { install, getGlobalConfigPath, getPackageVersion, ScopeResolver, isLocalInstalled, readLocalConfig, mergeConfigWithOverrides } from "./src/installer.ts";
 import { join } from "node:path";
 
 const SKILL_NAMES = ["test-baselining", "regression-checking"] as const;
 
+function setExploreSkillPermissions(input: Config): void {
+  input.agent ??= {};
+  input.agent.explore ??= {};
+  input.agent.explore.permission ??= {};
+  const perm = input.agent.explore.permission as Record<string, unknown>;
+  perm.skill ??= {};
+  const skillPerm = perm.skill as Record<string, string>;
+  skillPerm["test-baselining"] = "allow";
+  skillPerm["regression-checking"] = "allow";
+}
+
 const plugin: Plugin = async ({ directory }) => ({
-  config: async () => {
+  config: async (input: Config) => {
     const version = await getPackageVersion();
     const globalConfigPath = getGlobalConfigPath();
     const globalVersionMarker = join(globalConfigPath, "skills", "test-baselining", ".version");
 
-    const isGlobalInstall = directory === globalConfigPath ||
-      directory.startsWith(globalConfigPath + "/") ||
-      directory.startsWith(globalConfigPath + "\\");
-
-    let scope: Scope;
+    const scope = ScopeResolver.resolve(directory, globalConfigPath);
 
-    if (isGlobalInstall) {
-      scope = "global";
-    } else {
+    if (scope === "global") {
+      const marker = globalVersionMarker;
       try {
-        const globalVersion = (await Bun.file(globalVersionMarker).text()).trim();
-        if (globalVersion === version) {
+        const installedVersion = (await Bun.file(marker).text()).trim();
+        if (installedVersion === version) {
+          setExploreSkillPermissions(input);
           return;
         }
       } catch {
-        // Global not installed, proceed with local
+        // Not installed, proceed
+      }
+
+      const result = await install("global", directory);
+      console.log(`\nInstalled opencode-auto-qcgates globally:`);
+      if (result.skillPaths.length > 0) {
+        console.log(`  Skills: ${result.skillPaths.join(", ")}`);
       }
-      scope = "local";
+      if (result.commandPaths.length > 0) {
+        console.log(`  Commands: ${result.commandPaths.join(", ")}`);
+      }
+      setExploreSkillPermissions(input);
+      return;
     }
 
-    const marker = scope === "global"
-      ? globalVersionMarker
-      : join(directory, ".opencode", "skills", "test-baselining", ".version");
+    const localMarker = join(directory, ".opencode", "skills", "test-baselining", ".version");
+    const localInstalled = await isLocalInstalled(directory);
+
+    if (localInstalled) {
+      try {
+        const installedVersion = (await Bun.file(localMarker).text()).trim();
+        if (installedVersion === version) {
+          const localConfig = await readLocalConfig(directory);
+          if (localConfig) {
+            mergeConfigWithOverrides(input as Record<string, unknown>, localConfig);
+          }
+          setExploreSkillPermissions(input);
+          return;
+        }
+      } catch {
+        // Proceed with install
+      }
+
+      const result = await install("local", directory);
+      console.log(`\nInstalled opencode-auto-qcgates locally:`);
+      if (result.skillPaths.length > 0) {
+        console.log(`  Skills: ${result.skillPaths.join(", ")}`);
+      }
+      if (result.commandPaths.length > 0) {
+        console.log(`  Commands: ${result.commandPaths.join(", ")}`);
+      }
+      if (result.migrated) {
+        console.log(`  Migrated: opencode.json → .opencode/opencode.json`);
+      }
+
+      const newLocalConfig = await readLocalConfig(directory);
+      if (newLocalConfig) {
+        mergeConfigWithOverrides(input as Record<string, unknown>, newLocalConfig);
+      }
+      setExploreSkillPermissions(input);
+      return;
+    }
 
     try {
-      const installedVersion = (await Bun.file(marker).text()).trim();
-      if (installedVersion === version) {
+      const globalVersion = (await Bun.file(globalVersionMarker).text()).trim();
+      if (globalVersion === version) {
+        const result = await install("local", directory);
+        console.log(`\nInstalled opencode-auto-qcgates locally (overriding global):`);
+        if (result.skillPaths.length > 0) {
+          console.log(`  Skills: ${result.skillPaths.join(", ")}`);
+        }
+        if (result.commandPaths.length > 0) {
+          console.log(`  Commands: ${result.commandPaths.join(", ")}`);
+        }
+        if (result.migrated) {
+          console.log(`  Migrated: opencode.json → .opencode/opencode.json`);
+        }
+
+        const localConfig = await readLocalConfig(directory);
+        if (localConfig) {
+          mergeConfigWithOverrides(input as Record<string, unknown>, localConfig);
+        }
+        setExploreSkillPermissions(input);
         return;
       }
     } catch {
-      // Not installed, proceed
+      // Global not installed, proceed with local install
     }
 
-    const result = await install(scope, directory);
-    console.log(`\nInstalled opencode-auto-qcgates ${scope === "global" ? "globally" : "locally"}:`);
+    const result = await install("local", directory);
+    console.log(`\nInstalled opencode-auto-qcgates locally:`);
     if (result.skillPaths.length > 0) {
       console.log(`  Skills: ${result.skillPaths.join(", ")}`);
     }
@@ -54,6 +122,12 @@ const plugin: Plugin = async ({ directory }) => ({
     if (result.migrated) {
       console.log(`  Migrated: opencode.json → .opencode/opencode.json`);
     }
+
+    const finalLocalConfig = await readLocalConfig(directory);
+    if (finalLocalConfig) {
+      mergeConfigWithOverrides(input as Record<string, unknown>, finalLocalConfig);
+    }
+    setExploreSkillPermissions(input);
   },
 });
 
diff --git a/src/installer.ts b/src/installer.ts
index f24fb31..abe4f13 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -4,6 +4,18 @@ import { join } from "node:path";
 
 export type Scope = "local" | "global";
 
+export class ScopeResolver {
+  static resolve(directory: string, globalConfigPath: string): Scope {
+    const isExact = directory === globalConfigPath;
+    const isUnderForward = directory.startsWith(globalConfigPath + "/");
+    const isUnderBack = directory.startsWith(globalConfigPath + "\\");
+    if (isExact || isUnderForward || isUnderBack) {
+      return "global";
+    }
+    return "local";
+  }
+}
+
 export interface InstallOptions {
   addPluginConfig?: boolean;
 }
@@ -373,4 +385,32 @@ export async function status(projectDir: string = process.cwd()): Promise<Status
     local: localStatus,
     global: globalStatus,
   };
+}
+
+export async function isLocalInstalled(projectDir: string): Promise<boolean> {
+  const localConfigPath = getLocalConfigPath(projectDir);
+  const localMarker = join(localConfigPath, "skills", "test-baselining", ".version");
+  try {
+    await Bun.file(localMarker).text();
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+export async function readLocalConfig(projectDir: string): Promise<Record<string, unknown> | null> {
+  const localConfigPath = join(getLocalConfigPath(projectDir), "opencode.json");
+  return readJsonConfig(localConfigPath);
+}
+
+export function mergeConfigWithOverrides(
+  input: Record<string, unknown>,
+  localConfig: Record<string, unknown>
+): void {
+  for (const [key, value] of Object.entries(localConfig)) {
+    if (key === "plugin" || key === "agent") {
+      continue;
+    }
+    input[key] = value;
+  }
 }
\ No newline at end of file
diff --git a/tests/plugin.test.ts b/tests/plugin.test.ts
index 1c8a600..7b2ca52 100644
--- a/tests/plugin.test.ts
+++ b/tests/plugin.test.ts
@@ -6,6 +6,7 @@ import plugin from "../plugin.ts";
 const TEST_DIR = join(import.meta.dirname, ".test-temp");
 
 beforeAll(async () => {
+  await rm(TEST_DIR, { recursive: true }).catch(() => {});
   await mkdir(TEST_DIR, { recursive: true });
 });
 
@@ -24,8 +25,8 @@ describe("TestBaseliningPlugin", () => {
   test("installs skills and commands to target directory", async () => {
     // @ts-ignore - PluginInput requires full context, we only need directory
     const result = await plugin({ directory: TEST_DIR });
-    // @ts-ignore - config returns async function
-    await (result.config as (() => Promise<void>) | undefined)?.();
+    // @ts-ignore - config returns async function that takes Config argument
+    await (result.config as ((input: unknown) => Promise<void>) | undefined)?.({});
 
     const skillPath = join(TEST_DIR, ".opencode", "skills", "test-baselining", "SKILL.md");
     const commandPath = join(TEST_DIR, ".opencode", "commands", "test-baseline.md");