diff --git a/.opencode/index.ts b/.opencode/index.ts
index fa6cadc58..8ee800f80 100644
--- a/.opencode/index.ts
+++ b/.opencode/index.ts
@@ -37,4 +37,4 @@
 // Export the main plugin
 // opencode's legacy plugin loader iterates every module export and throws if
 // any is not a plugin function, so only the plugin function may be exported.
-export { default } from "./plugins/index.js"
+export { default } from "./plugins/index.ts"
diff --git a/.opencode/package-lock.json b/.opencode/package-lock.json
index f6c140bdd..ecaf9172f 100644
--- a/.opencode/package-lock.json
+++ b/.opencode/package-lock.json
@@ -11,7 +11,7 @@
       "devDependencies": {
         "@opencode-ai/plugin": "^1.4.3",
         "@types/node": "^20.0.0",
-        "typescript": "^5.3.0"
+        "typescript": "^5.7.0"
       },
       "engines": {
         "node": ">=18.0.0"
diff --git a/.opencode/package.json b/.opencode/package.json
index 94e8e3f04..35fd57da2 100644
--- a/.opencode/package.json
+++ b/.opencode/package.json
@@ -62,7 +62,7 @@
   "devDependencies": {
     "@opencode-ai/plugin": "^1.4.3",
     "@types/node": "^20.0.0",
-    "typescript": "^5.3.0"
+    "typescript": "^5.7.0"
   },
   "engines": {
     "node": ">=18.0.0"
diff --git a/.opencode/plugins/ecc-hooks.ts b/.opencode/plugins/ecc-hooks.ts
index 22b1132f0..69b59727e 100644
--- a/.opencode/plugins/ecc-hooks.ts
+++ b/.opencode/plugins/ecc-hooks.ts
@@ -16,8 +16,8 @@
 import type { PluginInput } from "@opencode-ai/plugin"
 import * as fs from "fs"
 import * as path from "path"
-import changedFilesTool from "../tools/changed-files.js"
-import dependencyAnalyzerTool from "../tools/dependency-analyzer.js"
+import changedFilesTool from "../tools/changed-files.ts"
+import dependencyAnalyzerTool from "../tools/dependency-analyzer.ts"
 
 /**
  * Type definitions for better type safety
@@ -111,9 +111,9 @@ export const ECCHooksPlugin: ECCHooksPluginFn = async ({
   // This plugin is OpenCode's startup entry point, so a static import
   // failure here previously crashed the whole plugin -- and with it, the
   // entire OpenCode session -- before any hooks could load (see #2530).
-  let changedFilesStore: typeof import("./lib/changed-files-store.js") | undefined
+  let changedFilesStore: typeof import("./lib/changed-files-store.ts") | undefined
   try {
-    const store = await import("./lib/changed-files-store.js")
+    const store = await import("./lib/changed-files-store.ts")
     store.initStore(worktreePath)
     changedFilesStore = store
   } catch {
diff --git a/.opencode/plugins/index.ts b/.opencode/plugins/index.ts
index c1e17a159..3a98f0ba6 100644
--- a/.opencode/plugins/index.ts
+++ b/.opencode/plugins/index.ts
@@ -6,7 +6,7 @@
  * while taking advantage of OpenCode's more sophisticated 20+ event types.
  */
 
-export { ECCHooksPlugin, default } from "./ecc-hooks.js"
+export { ECCHooksPlugin, default } from "./ecc-hooks.ts"
 
 // Re-export for named imports
-export * from "./ecc-hooks.js"
+export * from "./ecc-hooks.ts"
diff --git a/.opencode/tools/changed-files.ts b/.opencode/tools/changed-files.ts
index 1150ca756..3ae000e1b 100644
--- a/.opencode/tools/changed-files.ts
+++ b/.opencode/tools/changed-files.ts
@@ -1,5 +1,5 @@
 import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
-import type { ChangeType, TreeNode } from "../plugins/lib/changed-files-store.js"
+import type { ChangeType, TreeNode } from "../plugins/lib/changed-files-store.ts"
 
 const INDICATORS: Record<ChangeType, string> = {
   added: "+",
@@ -27,12 +27,12 @@ function renderTree(nodes: TreeNode[], indent: string): string {
 // file, so a static import failure here previously took down the entire
 // tools module -- and with it, the whole OpenCode session -- on the very
 // first tool-loading pass (see #2530).
-type ChangedFilesStore = typeof import("../plugins/lib/changed-files-store.js")
+type ChangedFilesStore = typeof import("../plugins/lib/changed-files-store.ts")
 let changedFilesStorePromise: Promise<ChangedFilesStore> | undefined
 
 async function loadChangedFilesStore(): Promise<ChangedFilesStore> {
   if (!changedFilesStorePromise) {
-    changedFilesStorePromise = import("../plugins/lib/changed-files-store.js").catch(() => {
+    changedFilesStorePromise = import("../plugins/lib/changed-files-store.ts").catch(() => {
       changedFilesStorePromise = undefined
       throw new Error(
         "changed-files tool: could not load the changed-files store. " +
diff --git a/.opencode/tools/index.ts b/.opencode/tools/index.ts
index 9bd999479..5332381e8 100644
--- a/.opencode/tools/index.ts
+++ b/.opencode/tools/index.ts
@@ -4,12 +4,12 @@
  * These tools extend OpenCode with additional capabilities.
  */
 
-// Re-export all tools
-export { default as runTests } from "./run-tests.js"
-export { default as checkCoverage } from "./check-coverage.js"
-export { default as securityAudit } from "./security-audit.js"
-export { default as formatCode } from "./format-code.js"
-export { default as lintCheck } from "./lint-check.js"
-export { default as gitSummary } from "./git-summary.js"
-export { default as changedFiles } from "./changed-files.js"
-export { default as dependencyAnalyzer } from "./dependency-analyzer.js"
+// OpenCode loads these sources in place; tsc rewrites .ts imports for dist.
+export { default as runTests } from "./run-tests.ts"
+export { default as checkCoverage } from "./check-coverage.ts"
+export { default as securityAudit } from "./security-audit.ts"
+export { default as formatCode } from "./format-code.ts"
+export { default as lintCheck } from "./lint-check.ts"
+export { default as gitSummary } from "./git-summary.ts"
+export { default as changedFiles } from "./changed-files.ts"
+export { default as dependencyAnalyzer } from "./dependency-analyzer.ts"
diff --git a/.opencode/tsconfig.json b/.opencode/tsconfig.json
index c6b43257b..89fdf6546 100644
--- a/.opencode/tsconfig.json
+++ b/.opencode/tsconfig.json
@@ -3,6 +3,7 @@
     "target": "ES2022",
     "module": "NodeNext",
     "moduleResolution": "NodeNext",
+    "rewriteRelativeImportExtensions": true,
     "lib": ["ES2022"],
     "outDir": "./dist",
     "rootDir": ".",
diff --git a/scripts/lib/install-lifecycle.js b/scripts/lib/install-lifecycle.js
index ec9cb1d80..309a41fd0 100644
--- a/scripts/lib/install-lifecycle.js
+++ b/scripts/lib/install-lifecycle.js
@@ -32,7 +32,7 @@ const {
   updateSettingsAtomic,
   validateManagedHooks,
 } = require('./install/claude-settings');
-const { adaptAntigravityAgent } = require('./install/antigravity-agent');
+const { transformInstallContent } = require('./install/content-transform');
 const { buildInstallIndex, rewriteRelativeLinks } = require('./install/link-rewrite');
 const { getInstallTargetAdapter, listInstallTargetAdapters } = require('./install-targets/registry');
 const { resolveInvocationEnvironment } = require('./invocation-environment');
@@ -223,18 +223,8 @@ function buildLinkIndexForOperations(operations, trustedRoot) {
   return buildInstallIndex(mappings);
 }
 
-function transformCopyFileContent(operation, content) {
-  if (!operation.contentTransform) {
-    return content;
-  }
-  if (operation.contentTransform === 'antigravity-agent-frontmatter') {
-    return adaptAntigravityAgent(content, operation.sourceRelativePath);
-  }
-  throw new Error(`Unknown install content transform: ${operation.contentTransform}`);
-}
-
 function getExpectedCopyFileContent(operation, content, linkIndex) {
-  const transformed = transformCopyFileContent(operation, content);
+  const transformed = transformInstallContent(operation, content);
   if (!linkIndex || !operation.sourceRelativePath || !isMarkdownPath(operation.destinationPath)) {
     return transformed;
   }
diff --git a/scripts/lib/install-targets/opencode-home.js b/scripts/lib/install-targets/opencode-home.js
index d25fdf7da..6c687f438 100644
--- a/scripts/lib/install-targets/opencode-home.js
+++ b/scripts/lib/install-targets/opencode-home.js
@@ -5,6 +5,8 @@ const path = require('path');
 const {
   buildValidationIssue,
   createInstallTargetAdapter,
+  createManagedOperation,
+  isForeignPlatformPath,
 } = require('./helpers');
 const { resolveOpencodeConfigRoot } = require('../opencode-paths');
 
@@ -88,5 +90,27 @@ module.exports = createInstallTargetAdapter({
   resolveRoot: resolveOpencodeConfigRoot,
   installStatePathSegments: ['ecc-install-state.json'],
   nativeRootRelativePath: '.opencode',
+  planOperations(input, adapter) {
+    const modules = Array.isArray(input.modules)
+      ? input.modules
+      : (input.module ? [input.module] : []);
+    return modules.flatMap(module => (Array.isArray(module.paths) ? module.paths : [])
+      .filter(sourcePath => !isForeignPlatformPath(sourcePath, adapter.target))
+      .flatMap(sourcePath => {
+        const operation = adapter.createScaffoldOperation(module.id, sourcePath, input);
+        if (operation.sourceRelativePath !== '.opencode') {
+          return [operation];
+        }
+        // Keep the repository template's sibling skills path for direct use,
+        // but point home installs at the skills copied inside the config root.
+        return [operation, createManagedOperation({
+          moduleId: module.id,
+          sourceRelativePath: '.opencode/opencode.json',
+          destinationPath: path.join(operation.destinationPath, 'opencode.json'),
+          strategy: operation.strategy,
+          contentTransform: 'opencode-home-skills-path',
+        })];
+      }));
+  },
   validate: defaultValidateOpencodeHome,
 });
diff --git a/scripts/lib/install/apply.js b/scripts/lib/install/apply.js
index fbab1293b..e751aaf66 100644
--- a/scripts/lib/install/apply.js
+++ b/scripts/lib/install/apply.js
@@ -35,22 +35,12 @@ const {
 } = require('./ownership-guard');
 const { cleanupLegacyOpencodeInstall } = require('./opencode-legacy-migration');
 const { buildInstallIndex, rewriteRelativeLinks } = require('./link-rewrite');
-const { adaptAntigravityAgent } = require('./antigravity-agent');
+const { transformInstallContent } = require('./content-transform');
 
 function isMarkdownPath(filePath) {
   return /\.(md|mdx|markdown)$/i.test(String(filePath || ''));
 }
 
-function transformInstallContent(operation, content) {
-  if (!operation.contentTransform) {
-    return content;
-  }
-  if (operation.contentTransform === 'antigravity-agent-frontmatter') {
-    return adaptAntigravityAgent(content, operation.sourceRelativePath);
-  }
-  throw new Error(`Unknown install content transform: ${operation.contentTransform}`);
-}
-
 // Map every copy-file operation to { sourceRel, destRel } so relative links in
 // namespaced markdown can be rewritten to the file's actual installed location
 // (issue #2340). Returns null when the plan lacks the data needed to do so.
diff --git a/scripts/lib/install/content-transform.js b/scripts/lib/install/content-transform.js
new file mode 100644
index 000000000..fc56be765
--- /dev/null
+++ b/scripts/lib/install/content-transform.js
@@ -0,0 +1,29 @@
+'use strict';
+
+const { adaptAntigravityAgent } = require('./antigravity-agent');
+
+function transformInstallContent(operation, content) {
+  if (!operation.contentTransform) {
+    return content;
+  }
+  if (operation.contentTransform === 'antigravity-agent-frontmatter') {
+    return adaptAntigravityAgent(content, operation.sourceRelativePath);
+  }
+  if (operation.contentTransform === 'opencode-home-skills-path') {
+    const config = JSON.parse(content);
+    if (!Array.isArray(config?.skills?.paths) || !config.skills.paths.includes('../skills')) {
+      return content;
+    }
+    const installedConfig = {
+      ...config,
+      skills: {
+        ...config.skills,
+        paths: config.skills.paths.map(skillPath => skillPath === '../skills' ? './skills' : skillPath),
+      },
+    };
+    return `${JSON.stringify(installedConfig, null, 2)}\n`;
+  }
+  throw new Error(`Unknown install content transform: ${operation.contentTransform}`);
+}
+
+module.exports = { transformInstallContent };
diff --git a/tests/fixtures/opencode-ts-loader.mjs b/tests/fixtures/opencode-ts-loader.mjs
new file mode 100644
index 000000000..6199b4880
--- /dev/null
+++ b/tests/fixtures/opencode-ts-loader.mjs
@@ -0,0 +1,18 @@
+import { readFile } from "node:fs/promises"
+import ts from "typescript"
+
+// Emulate OpenCode's in-place TypeScript loading without remapping missing
+// .js specifiers to .ts files. Such remapping would hide issue #3112.
+export async function load(url, context, nextLoad) {
+  if (!url.endsWith(".ts")) return nextLoad(url, context)
+
+  const source = await readFile(new URL(url), "utf8")
+  const result = ts.transpileModule(source, {
+    compilerOptions: {
+      target: ts.ScriptTarget.ES2022,
+      module: ts.ModuleKind.ESNext,
+      verbatimModuleSyntax: true,
+    },
+  })
+  return { format: "module", source: result.outputText, shortCircuit: true }
+}
diff --git a/tests/lib/install-executor.test.js b/tests/lib/install-executor.test.js
index 6f64b540c..940d5f030 100644
--- a/tests/lib/install-executor.test.js
+++ b/tests/lib/install-executor.test.js
@@ -21,6 +21,7 @@ const {
 } = require('../../scripts/lib/install-executor');
 const { applyInstallPlan: applyInstallPlanDirect } = require('../../scripts/lib/install/apply');
 const { withHookConsent } = require('../../scripts/lib/install/hook-consent');
+const { repairInstalledStates, uninstallInstalledStates } = require('../../scripts/lib/install-lifecycle');
 
 const REPO_ROOT = path.resolve(__dirname, '..', '..');
 
@@ -709,6 +710,82 @@ function runTests() {
     }
   })) passed++; else failed++;
 
+  if (test('OpenCode home installs resolve bundled skills inside the config root', () => {
+    const tempDir = createTempDir('install-executor-opencode-skills-');
+    try {
+      const sourceRoot = path.join(tempDir, 'source');
+      writeManifestSourceFixture(sourceRoot);
+      const modulesPath = path.join(sourceRoot, 'manifests', 'install-modules.json');
+      const manifest = JSON.parse(fs.readFileSync(modulesPath, 'utf8'));
+      writeJson(sourceRoot, 'manifests/install-modules.json', {
+        ...manifest,
+        modules: manifest.modules.map(module => ({
+          ...module,
+          paths: ['.opencode', '.cursor', 'skills/demo'],
+          targets: ['opencode'],
+        })),
+      });
+      writeFile(sourceRoot, '.opencode/dist/index.js', 'export default () => ({});\n');
+      writeFile(sourceRoot, '.opencode/dist/plugins/index.js', 'export {};\n');
+      writeFile(sourceRoot, '.opencode/dist/tools/index.js', 'export {};\n');
+      writeFile(sourceRoot, '.cursor/foreign.txt', 'must not install\n');
+      const sourceConfig = JSON.parse(fs.readFileSync(path.join(REPO_ROOT, '.opencode', 'opencode.json'), 'utf8'));
+      const configs = [
+        {
+          ...sourceConfig,
+          skills: { ...sourceConfig.skills, paths: ['../skills', '/custom/skills', '../other-skills'] },
+        },
+        { ...sourceConfig, skills: { paths: ['/custom/skills'] } },
+        { plugin: ['./plugins'] },
+      ];
+
+      for (const [index, config] of configs.entries()) {
+        const configSourcePath = path.join(sourceRoot, '.opencode', 'opencode.json');
+        writeJson(sourceRoot, '.opencode/opencode.json', config);
+        const originalContent = fs.readFileSync(configSourcePath, 'utf8');
+        const plan = createManifestInstallPlan({
+          sourceRoot,
+          projectRoot: path.join(tempDir, 'project'),
+          homeDir: path.join(tempDir, `home-${index}`),
+          target: 'opencode',
+          moduleIds: ['fixture-core'],
+        });
+        const configPath = path.join(plan.targetRoot, 'opencode.json');
+        assert.strictEqual(plan.operations.filter(operation => operation.destinationPath === configPath).length, 1);
+        applyInstallPlan(plan);
+        const installed = JSON.parse(fs.readFileSync(configPath, 'utf8'));
+        const expected = index === 0
+          ? { ...config, skills: { ...config.skills, paths: ['./skills', '/custom/skills', '../other-skills'] } }
+          : config;
+        assert.deepStrictEqual(installed, expected);
+        assert.strictEqual(fs.readFileSync(configSourcePath, 'utf8'), originalContent, 'repository template must stay unchanged');
+        assert.ok(fs.existsSync(path.join(plan.targetRoot, 'skills', 'demo', 'SKILL.md')));
+        assert.ok(!fs.existsSync(path.join(plan.targetRoot, '.cursor')));
+        if (index === 0) {
+          const lifecycleOptions = {
+            repoRoot: sourceRoot,
+            projectRoot: path.join(tempDir, 'project'),
+            homeDir: path.join(tempDir, `home-${index}`),
+            targets: ['opencode'],
+          };
+          fs.unlinkSync(configPath);
+          const repaired = repairInstalledStates(lifecycleOptions);
+          assert.strictEqual(repaired.results[0].status, 'repaired', repaired.results[0].error);
+          assert.deepStrictEqual(JSON.parse(fs.readFileSync(configPath, 'utf8')), expected);
+          const state = JSON.parse(fs.readFileSync(plan.installStatePath, 'utf8'));
+          const recordedConfig = state.operations.find(operation => operation.destinationPath === configPath);
+          assert.strictEqual(recordedConfig.contentSha256, crypto.createHash('sha256')
+            .update(fs.readFileSync(configPath)).digest('hex'));
+          const uninstalled = uninstallInstalledStates(lifecycleOptions);
+          assert.strictEqual(uninstalled.results[0].status, 'uninstalled', uninstalled.results[0].error);
+          assert.ok(!fs.existsSync(configPath));
+        }
+      }
+    } finally {
+      cleanup(tempDir);
+    }
+  })) passed++; else failed++;
+
   if (test('dedupeCopyFileOperations keeps the last writer per destination (issue #2414)', () => {
     // Mirrors the OpenCode command scenario: a generic commands/<name>.md source
     // (preserve-relative-path) and an override .opencode/commands/<name>.md source
diff --git a/tests/scripts/build-opencode.test.js b/tests/scripts/build-opencode.test.js
index 469165883..086103587 100644
--- a/tests/scripts/build-opencode.test.js
+++ b/tests/scripts/build-opencode.test.js
@@ -6,7 +6,57 @@ const assert = require("assert")
 const fs = require("fs")
 const path = require("path")
 const { spawnSync } = require("child_process")
+const { pathToFileURL } = require("url")
 const { getNpmPackEntry } = require("../lib/npm-pack-output")
+const { createManifestInstallPlan, applyInstallPlan } = require("../../scripts/lib/install-executor")
+const { withHookConsent } = require("../../scripts/lib/install/hook-consent")
+
+function checkRuntime(runtimeRoot, extension, loader) {
+  const check = `
+    const assert = require("node:assert/strict")
+    const path = require("node:path")
+    const { pathToFileURL } = require("node:url")
+    const [root, extension] = process.argv.slice(1)
+    const load = (name) => import(pathToFileURL(path.join(root, name + extension)).href)
+
+    async function main() {
+      const tools = await load("tools/index")
+      assert.deepEqual(Object.keys(tools).sort(), [
+        "changedFiles", "checkCoverage", "dependencyAnalyzer", "formatCode",
+        "gitSummary", "lintCheck", "runTests", "securityAudit",
+      ])
+      for (const tool of Object.values(tools)) {
+        assert.equal(typeof tool.description, "string")
+        assert.equal(typeof tool.execute, "function")
+      }
+
+      const plugins = await load("plugins/index")
+      const entry = await load("index")
+      assert.deepEqual(Object.keys(entry), ["default"])
+      assert.equal(entry.default, plugins.default)
+      const logs = []
+      const plugin = await entry.default({
+        client: { app: { log: (event) => logs.push(event.body) } },
+        $: () => { throw new Error("Unexpected shell execution") },
+        directory: process.cwd(),
+        worktree: process.cwd(),
+      })
+      assert.equal(typeof plugin["session.created"], "function")
+      await plugin["file.edited"]({ path: path.join(process.cwd(), "example.txt") })
+      const changed = JSON.parse(await tools.changedFiles.execute({ format: "json" }, {}))
+      assert.equal(changed.changed, true)
+      assert.deepEqual(changed.files, [{ path: "example.txt", changeType: "modified" }])
+      assert.ok(!logs.some((log) => log.message.includes("tracking disabled")))
+    }
+    main().catch((error) => { console.error(error); process.exit(1) })
+  `
+  const args = loader ? ["--loader", pathToFileURL(loader).href] : []
+  const result = spawnSync(process.execPath, [...args, "-e", check, runtimeRoot, extension], {
+    cwd: path.join(__dirname, "..", ".."),
+    encoding: "utf8",
+  })
+  assert.strictEqual(result.status, 0, result.error?.message || result.stderr || result.stdout)
+}
 
 function runTest(name, fn) {
   try {
@@ -116,6 +166,40 @@ function main() {
       })
       assert.strictEqual(result.status, 0, result.stderr)
     }],
+    ["compiled barrels load and share the lazy changed-files store", () => {
+      checkRuntime(path.dirname(distEntry), ".js")
+    }],
+    ["full home install loads TypeScript barrels and the lazy changed-files store", () => {
+      // Keep the fixture beneath the repo so the installed tools can resolve
+      // the real SDK dependency without installing packages in the user's home.
+      const fixture = fs.mkdtempSync(path.join(repoRoot, "tests", ".opencode-home-"))
+      try {
+        const homeDir = path.join(fixture, "home")
+        const projectRoot = path.join(fixture, "project")
+        fs.mkdirSync(homeDir)
+        fs.mkdirSync(projectRoot)
+        const plan = withHookConsent(createManifestInstallPlan({
+          sourceRoot: repoRoot,
+          homeDir,
+          projectRoot,
+          env: {},
+          target: "opencode",
+          profileId: "full",
+        }), "enabled")
+        applyInstallPlan(plan)
+        const config = JSON.parse(fs.readFileSync(path.join(plan.targetRoot, "opencode.json"), "utf8"))
+        assert.deepStrictEqual(config.skills.paths, ["./skills"])
+        assert.ok(fs.existsSync(path.join(plan.targetRoot, config.skills.paths[0], "tdd-workflow", "SKILL.md")))
+        assert.ok(!fs.existsSync(path.join(plan.targetRoot, "tools", "run-tests.js")))
+        checkRuntime(
+          plan.targetRoot,
+          ".ts",
+          path.join(repoRoot, "tests", "fixtures", "opencode-ts-loader.mjs"),
+        )
+      } finally {
+        fs.rmSync(fixture, { recursive: true, force: true })
+      }
+    }],
     ["npm pack includes the compiled OpenCode dist payload", () => {
       const result = spawnSync("npm", ["pack", "--dry-run", "--json"], {
         cwd: repoRoot,