diff --git a/package-lock.json b/package-lock.json
index 29f141c7a..bb4dcbd04 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,6 +10,7 @@
       "license": "MIT",
       "dependencies": {
         "@iarna/toml": "2.2.5",
+        "@opencode-ai/plugin": "1.18.34",
         "ajv": "8.20.0",
         "js-yaml": "4.3.2",
         "sql.js": "1.14.2"
@@ -24,7 +25,6 @@
       },
       "devDependencies": {
         "@eslint/js": "9.39.2",
-        "@opencode-ai/plugin": "1.18.34",
         "@types/node": "26.6.4",
         "c8": "11.0.0",
         "eslint": "10.11.0",
@@ -40,7 +40,6 @@
       "version": "3.0.8",
       "resolved": "https://registry.npmjs.org/@ai-sdk/provider/-/provider-3.0.8.tgz",
       "integrity": "sha512-oGMAgGoQdBXbZqNG0Ze56CHjDZ1IDYOwGYxYjO5KLSlz5HiNQ9udIXsPZ61VWaHGZ5XW/jyjmr6t2xz2jGVwbQ==",
-      "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
         "json-schema": "^0.4.0"
@@ -344,7 +343,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -358,7 +356,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -372,7 +369,6 @@
       "cpu": [
         "arm"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -386,7 +382,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -400,7 +395,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -414,7 +408,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -425,7 +418,6 @@
       "version": "1.18.34",
       "resolved": "https://registry.npmjs.org/@opencode-ai/plugin/-/plugin-1.18.34.tgz",
       "integrity": "sha512-bC1EBL/QJ6LpC7liKZXr5JA+oa9qDAwTzpEgPxPsx1pbIUdhKOqg3/yoPEQgoa4YdO3hsgCWNFmbDE/DeOl/Ug==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@ai-sdk/provider": "3.0.8",
@@ -454,7 +446,6 @@
       "version": "1.18.34",
       "resolved": "https://registry.npmjs.org/@opencode-ai/sdk/-/sdk-1.18.34.tgz",
       "integrity": "sha512-R9QWUpcngtdQ6FCixz7NC6n1WsSho6CEuRUzYHz/CzZcp3miSklDzXkm0oDwXVCnuEu+ANoeM0f6RDp51kOMzQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "cross-spawn": "7.0.6"
@@ -464,7 +455,6 @@
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@standard-schema/spec/-/spec-1.1.0.tgz",
       "integrity": "sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/@types/debug": {
@@ -826,7 +816,6 @@
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
       "integrity": "sha512-uV2QOWP2nWzsy2aMp8aRibhi9dlzF5Hgh5SHaB9OiTGEyDTiJJyx0uy51QXdyWbtAHNua4XJzUKca3OzKUd3vA==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "path-key": "^3.1.0",
@@ -900,7 +889,6 @@
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.1.2.tgz",
       "integrity": "sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==",
-      "dev": true,
       "license": "Apache-2.0",
       "optional": true,
       "engines": {
@@ -925,7 +913,6 @@
       "version": "4.0.0-beta.83",
       "resolved": "https://registry.npmjs.org/effect/-/effect-4.0.0-beta.83.tgz",
       "integrity": "sha512-0wsak8RtgGAr9UWSbVDgJHZcUqMSvicHcvaZv1MbMM7MCGgW4Rn/137J1MHQbwYPcwYGxT/IqehFd+UbYuj78w==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@standard-schema/spec": "^1.1.0",
@@ -1165,7 +1152,6 @@
       "version": "4.9.0",
       "resolved": "https://registry.npmjs.org/fast-check/-/fast-check-4.9.0.tgz",
       "integrity": "sha512-7ms6T7SybUev/PQITciI0yLM2pOSFy5zpG8Ty7tQofcVaQUvrMXp6CBwqF6fThLCLOrfBtuHAtwq6Yu4XPCllg==",
-      "dev": true,
       "funding": [
         {
           "type": "individual",
@@ -1252,7 +1238,6 @@
       "version": "0.1.6",
       "resolved": "https://registry.npmjs.org/find-my-way-ts/-/find-my-way-ts-0.1.6.tgz",
       "integrity": "sha512-a85L9ZoXtNAey3Y6Z+eBWW658kO/MwR7zIafkIUPUMf3isZG0NCs2pjW2wtjxAKuJPxMAsHUIP4ZPGv0o5gyTA==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/find-up": {
@@ -1436,7 +1421,6 @@
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/ini/-/ini-7.0.0.tgz",
       "integrity": "sha512-ifK0CgjALofS5bkrcTy4RaQ9Vx2Knf/eLeIO+NaswQEpH1UblrtTSCIvN71qQDMq0PeQ/SSPojvEJp9vvvfr+w==",
-      "dev": true,
       "license": "ISC",
       "engines": {
         "node": "^22.22.2 || ^24.15.0 || >=26.0.0"
@@ -1527,7 +1511,6 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
       "integrity": "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==",
-      "dev": true,
       "license": "ISC"
     },
     "node_modules/istanbul-lib-coverage": {
@@ -1595,7 +1578,6 @@
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.4.0.tgz",
       "integrity": "sha512-es94M3nTIfsEPisRafak+HDLfHXnKBhV3vU5eqPcS3flIWqcxJWgXHXiey3YrpaNsanY5ei1VoYEbOzijuq9BA==",
-      "dev": true,
       "license": "(AFL-2.1 OR BSD-3-Clause)"
     },
     "node_modules/json-schema-traverse": {
@@ -1669,7 +1651,6 @@
       "version": "1.30.0",
       "resolved": "https://registry.npmjs.org/kubernetes-types/-/kubernetes-types-1.30.0.tgz",
       "integrity": "sha512-Dew1okvhM/SQcIa2rcgujNndZwU8VnSapDgdxlYoB84ZlpAD43U6KLAFqYo17ykSFGHNPrg0qry0bP+GJd9v7Q==",
-      "dev": true,
       "license": "Apache-2.0"
     },
     "node_modules/levn": {
@@ -2426,7 +2407,6 @@
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/msgpackr/-/msgpackr-2.1.0.tgz",
       "integrity": "sha512-p/pBCVO63CsvvpkomUnNNag6+n38rULuDA6HHe70o2gtC8ODI52foF/4ko2qQcp6OiErJXTmrZeXmsGGHsIQNQ==",
-      "dev": true,
       "license": "MIT",
       "optionalDependencies": {
         "msgpackr-extract": "^3.0.4"
@@ -2436,7 +2416,6 @@
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/msgpackr-extract/-/msgpackr-extract-3.0.4.tgz",
       "integrity": "sha512-4kmO/MdyUIkLIvTPr8VHLil4AtoKIoniWPIEk5+CDy0xnWC84azhSFmuJ7PxZdsYtiP5kEeQsORAVIeMgxT+Hw==",
-      "dev": true,
       "hasInstallScript": true,
       "license": "MIT",
       "optional": true,
@@ -2459,7 +2438,6 @@
       "version": "0.2.8",
       "resolved": "https://registry.npmjs.org/multipasta/-/multipasta-0.2.8.tgz",
       "integrity": "sha512-ZPWuMKyv0cSO29f7hozp+k6+crZbQijV8ipMvxNxRf2SwtYGTX1ZX89Kd20VV4H9Znonx+EQn+iy1wGQsJ+b+Q==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/natural-compare": {
@@ -2473,7 +2451,6 @@
       "version": "5.2.2",
       "resolved": "https://registry.npmjs.org/node-gyp-build-optional-packages/-/node-gyp-build-optional-packages-5.2.2.tgz",
       "integrity": "sha512-s+w+rBWnpTMwSFbaE0UXsRlg7hU4FjekKU4eyAih5T8nJuNZT1nNsskXpxmeqSK9UzkBl6UgRlnKc8hz8IEqOw==",
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "dependencies": {
@@ -2569,7 +2546,6 @@
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/path-key/-/path-key-3.1.1.tgz",
       "integrity": "sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -2638,7 +2614,6 @@
       "version": "8.4.2",
       "resolved": "https://registry.npmjs.org/pure-rand/-/pure-rand-8.4.2.tgz",
       "integrity": "sha512-vvuOGgcuPJAirlHvuQw1TrOiw7ptaIXXmIbNuiNOY6lNGJJH49PQ1Kj4nd783nPdQhQdicgOjVI2yI/9BD6/Ng==",
-      "dev": true,
       "funding": [
         {
           "type": "individual",
@@ -2723,7 +2698,6 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
       "integrity": "sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "shebang-regex": "^3.0.0"
@@ -2736,7 +2710,6 @@
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz",
       "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -2869,7 +2842,6 @@
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/toml/-/toml-4.3.0.tgz",
       "integrity": "sha512-lVb8X9BsPVuH0M4BKeS91tXAmJvCjQ5UIyAbQFaxkKGyUFK2RPkhwaFSQH8vbpl1d23eu/IBH+dwVMHWaq9A5A==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=20"
@@ -2930,7 +2902,6 @@
       "version": "14.0.2",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-14.0.2.tgz",
       "integrity": "sha512-xZe/16rV4aa+HGSOCiY2YeLT1OybRLrrkL/Rqaq7p7GMVXjFh+6wN4oMYgjFmnSnhY8t6Xpdl2l9qmnHYuMHwQ==",
-      "dev": true,
       "funding": [
         "https://github.com/sponsors/broofa",
         "https://github.com/sponsors/ctavan"
@@ -2959,7 +2930,6 @@
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
       "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
-      "dev": true,
       "license": "ISC",
       "dependencies": {
         "isexe": "^2.0.0"
@@ -2995,7 +2965,6 @@
       "version": "2.9.0",
       "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.9.0.tgz",
       "integrity": "sha512-2AvhNX3mb8zd6Zy7INTtSpl1F15HW6Wnqj0srWlkKLcpYl/gMIMJiyuGq2KeI2YFxUPjdlB+3Lc10seMLtL4cA==",
-      "dev": true,
       "license": "ISC",
       "bin": {
         "yaml": "bin.mjs"
@@ -3091,7 +3060,6 @@
       "version": "4.1.8",
       "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.8.tgz",
       "integrity": "sha512-5R1P+WwQqmmMIEACyzSvo4JXHY5WiAFHRMg+zBZKgKS+Q1viRa0C1hmUKtHltoIFKtIdki3pRxkmpP74jnNYHQ==",
-      "dev": true,
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
diff --git a/package.json b/package.json
index f30693419..10f5641f3 100644
--- a/package.json
+++ b/package.json
@@ -543,6 +543,7 @@
   },
   "dependencies": {
     "@iarna/toml": "2.2.5",
+    "@opencode-ai/plugin": "1.18.34",
     "ajv": "8.20.0",
     "js-yaml": "4.3.2",
     "sql.js": "1.14.2"
@@ -560,7 +561,6 @@
   },
   "devDependencies": {
     "@eslint/js": "9.39.2",
-    "@opencode-ai/plugin": "1.18.34",
     "@types/node": "26.6.4",
     "c8": "11.0.0",
     "eslint": "10.11.0",
diff --git a/tests/scripts/build-opencode.test.js b/tests/scripts/build-opencode.test.js
index 66359d4cc..36c924c1c 100644
--- a/tests/scripts/build-opencode.test.js
+++ b/tests/scripts/build-opencode.test.js
@@ -4,6 +4,7 @@
 
 const assert = require("assert")
 const fs = require("fs")
+const { builtinModules } = require("module")
 const os = require("os")
 const path = require("path")
 const { spawnSync } = require("child_process")
@@ -116,6 +117,36 @@ function main() {
       assert.strictEqual(result.status, 0, result.stderr)
       assert.ok(fs.existsSync(distEntry), ".opencode/dist/index.js should exist after build")
     }],
+    ["built OpenCode bundle only imports packages declared as runtime dependencies", () => {
+      // OpenCode installs npm plugins without devDependencies, so any package
+      // the compiled bundle imports at runtime must ship as a dependency.
+      const runtimeDeps = new Set([
+        ...Object.keys(packageJson.dependencies || {}),
+        ...Object.keys(packageJson.peerDependencies || {}),
+      ])
+      const distDir = path.dirname(distEntry)
+      const imported = new Set()
+      const walk = (dir) => {
+        for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
+          const entryPath = path.join(dir, entry.name)
+          if (entry.isDirectory()) {
+            walk(entryPath)
+          } else if (entry.name.endsWith(".js")) {
+            const source = fs.readFileSync(entryPath, "utf8")
+            for (const match of source.matchAll(/(?:\bfrom|\bimport)\s*\(?\s*["']([^"'.][^"']*)["']/g)) {
+              const specifier = match[1]
+              if (specifier.startsWith("node:") || builtinModules.includes(specifier)) continue
+              const parts = specifier.split("/")
+              imported.add(specifier.startsWith("@") ? parts.slice(0, 2).join("/") : parts[0])
+            }
+          }
+        }
+      }
+      walk(distDir)
+      assert.ok(imported.size > 0, "expected the OpenCode bundle to import at least one package")
+      const undeclared = [...imported].filter((name) => !runtimeDeps.has(name)).sort()
+      assert.deepStrictEqual(undeclared, [], `undeclared runtime imports: ${undeclared.join(", ")}`)
+    }],
     ["package.json declares a resolvable OpenCode plugin entry", () => {
       assert.strictEqual(packageJson.main, ".opencode/dist/index.js")
       assert.ok(packageJson.exports, "package.json must declare an exports map")