diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5f33f40..fe2b637 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -47,6 +47,16 @@ jobs:
           shared-key: conformance
           cache-all-crates: true
           save-if: ${{ github.ref == 'refs/heads/main' }}
+      - name: Install the component-test tools at the pinned revision
+        # Owns the rev derivation, the rev-keyed tools cache, the
+        # install, and the pins gate; the justfile's _ct-tools
+        # recognizes the stamped install and does not repeat it.
+        uses: polymorph-components/polymorph-test/actions/setup@76c094576076284c1a7d0ea1b7bb724e9e7384a5
+        with:
+          tools: component-test-cli
+          js-locks: |
+            conformance/driver-ct/jco/pnpm-lock.yaml
+            js/componentize/wpt/parity/pnpm-lock.yaml
       - uses: pnpm/action-setup@v4
         with:
           version: 10.34.5
@@ -116,21 +126,11 @@ jobs:
       # the same aggregate; this re-runs it through component-test's
       # composite action for the job summary and finding annotations,
       # with the prebuilt CLI so aggregation semantics cannot skew from
-      # the pin. `uses:` cannot interpolate, so the ref is a literal
-      # rev; the guard keeps it on the Cargo.lock pin.
-      - name: Check the aggregate action ref matches the pin
-        if: always()
-        run: |
-          rev=$(grep -m1 -A2 '^name = "component-test-sdk"' Cargo.lock | grep -oE '[0-9a-f]{40}' | head -1)
-          test -n "$rev"
-          if grep -E 'polymorph-test/actions/aggregate@[0-9a-f]{40}' .github/workflows/ci.yml | grep -qv "@$rev"; then
-            echo "aggregate action ref skew: not at the Cargo.lock rev $rev" >&2
-            exit 1
-          fi
-
+      # the pin. The action's cargo-lock input polices the `uses:` ref
+      # against the pin.
       - name: Publish the conformance matrix
         if: always() && hashFiles('conformance/driver-ct/results/*.jsonl') != ''
-        uses: polymorph-components/polymorph-test/actions/aggregate@824d100349dc7804c9bf1723d9b1ba0ed40fa940
+        uses: polymorph-components/polymorph-test/actions/aggregate@76c094576076284c1a7d0ea1b7bb724e9e7384a5
         with:
           lock: conformance/guest-ct/tests.lock
           manifest: conformance/driver-ct/targets.toml
@@ -141,6 +141,7 @@ jobs:
             jco-browser=conformance/driver-ct/results/jco-browser.jsonl
           summary-title: Conformance matrix
           cli: target/ct-tools/bin/component-test
+          cargo-lock: Cargo.lock
 
       - name: Upload conformance matrix
         if: always()
diff --git a/Cargo.lock b/Cargo.lock
index 7b3d19d..3f5db0d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -180,7 +180,7 @@ dependencies = [
 [[package]]
 name = "component-test-core"
 version = "0.1.0"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=824d100349dc7804c9bf1723d9b1ba0ed40fa940#824d100349dc7804c9bf1723d9b1ba0ed40fa940"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=76c094576076284c1a7d0ea1b7bb724e9e7384a5#76c094576076284c1a7d0ea1b7bb724e9e7384a5"
 dependencies = [
  "arcstr",
  "serde",
@@ -189,7 +189,7 @@ dependencies = [
 [[package]]
 name = "component-test-formats"
 version = "0.1.0"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=824d100349dc7804c9bf1723d9b1ba0ed40fa940#824d100349dc7804c9bf1723d9b1ba0ed40fa940"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=76c094576076284c1a7d0ea1b7bb724e9e7384a5#76c094576076284c1a7d0ea1b7bb724e9e7384a5"
 dependencies = [
  "anyhow",
  "component-test-core",
@@ -204,7 +204,7 @@ dependencies = [
 [[package]]
 name = "component-test-results"
 version = "0.1.0"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=824d100349dc7804c9bf1723d9b1ba0ed40fa940#824d100349dc7804c9bf1723d9b1ba0ed40fa940"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=76c094576076284c1a7d0ea1b7bb724e9e7384a5#76c094576076284c1a7d0ea1b7bb724e9e7384a5"
 dependencies = [
  "anyhow",
  "component-test-core",
@@ -215,7 +215,7 @@ dependencies = [
 [[package]]
 name = "component-test-runner"
 version = "0.1.0"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=824d100349dc7804c9bf1723d9b1ba0ed40fa940#824d100349dc7804c9bf1723d9b1ba0ed40fa940"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=76c094576076284c1a7d0ea1b7bb724e9e7384a5#76c094576076284c1a7d0ea1b7bb724e9e7384a5"
 dependencies = [
  "anyhow",
  "component-test-core",
@@ -231,7 +231,7 @@ dependencies = [
 [[package]]
 name = "component-test-sdk"
 version = "0.1.0"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=824d100349dc7804c9bf1723d9b1ba0ed40fa940#824d100349dc7804c9bf1723d9b1ba0ed40fa940"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=76c094576076284c1a7d0ea1b7bb724e9e7384a5#76c094576076284c1a7d0ea1b7bb724e9e7384a5"
 dependencies = [
  "component-test-core",
  "component-test-sdk-macro",
@@ -243,7 +243,7 @@ dependencies = [
 [[package]]
 name = "component-test-sdk-macro"
 version = "0.1.0"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=824d100349dc7804c9bf1723d9b1ba0ed40fa940#824d100349dc7804c9bf1723d9b1ba0ed40fa940"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=76c094576076284c1a7d0ea1b7bb724e9e7384a5#76c094576076284c1a7d0ea1b7bb724e9e7384a5"
 dependencies = [
  "component-test-core",
  "proc-macro2",
@@ -1814,7 +1814,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32497e9a4c7b38532efcdebeef879707aa9f794296a4f0244f6f69e9bc8574bd"
 dependencies = [
  "fastrand",
- "getrandom 0.3.4",
+ "getrandom 0.4.3",
  "once_cell",
  "rustix",
  "windows-sys 0.61.2",
diff --git a/Cargo.toml b/Cargo.toml
index 6073d99..276bbdb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,8 +30,8 @@ default-members = [
 # `cargo update component-test-sdk component-test-runner` and
 # `pnpm --dir conformance/driver-ct/jco install`; the _ct-tools pins
 # gate and the CI ref guard fail on skew.
-component-test-sdk = { git = "https://github.com/polymorph-components/polymorph-test", rev = "824d100349dc7804c9bf1723d9b1ba0ed40fa940" }
-component-test-runner = { git = "https://github.com/polymorph-components/polymorph-test", rev = "824d100349dc7804c9bf1723d9b1ba0ed40fa940" }
+component-test-sdk = { git = "https://github.com/polymorph-components/polymorph-test", rev = "76c094576076284c1a7d0ea1b7bb724e9e7384a5" }
+component-test-runner = { git = "https://github.com/polymorph-components/polymorph-test", rev = "76c094576076284c1a7d0ea1b7bb724e9e7384a5" }
 anyhow = "1"
 bytes = "1"
 futures = "0.3"
diff --git a/conformance/driver-ct/jco/harness.mjs b/conformance/driver-ct/jco/harness.mjs
index 7412c6e..c4363e6 100644
--- a/conformance/driver-ct/jco/harness.mjs
+++ b/conformance/driver-ct/jco/harness.mjs
@@ -20,6 +20,10 @@
 
 import { envelope, inventoryLookup, runCases } from "@polymorph/component-test-js/harness";
 import { Context } from "@polymorph/component-test-js/context";
+import {
+  bindImports as bindCoreImports,
+  envInterface,
+} from "@polymorph/component-test-js/imports";
 
 // The single-attempt wall bound per case, matching the wasmtime leg's
 // --case-timeout: a wedged case is reported (limit-exceeded provenance),
@@ -30,45 +34,19 @@ import { Context } from "@polymorph/component-test-js/context";
 const CASE_TIMEOUT_MS = 60_000;
 
 /**
- * The suite's import object, both key spellings (the generated code
- * mixes versioned and unversioned): the SUT host, the test-context
- * provider (upstream's), the config environment, and the wasi shims.
+ * The suite's import object over the upstream builder: the SUT host,
+ * the test-context provider, the config environment, and the wasi
+ * shims.
  */
 export function bindImports({ connections, env, cli, clocks, io }) {
-  const imports = {};
-  const bind = (name, impl) => {
-    imports[name] = impl;
-    const versioned = name.startsWith("wasi:") ? `${name}@0.2.0` : `${name}@0.1.0`;
-    imports[versioned] = impl;
-  };
-  bind("polymorph:websocket/connections", connections);
-  bind("polymorph:test/test-context", { Context });
-  bind("wasi:cli/environment", envInterface(env));
-  bind("wasi:cli/exit", cli.exit);
-  bind("wasi:cli/stdin", cli.stdin);
-  bind("wasi:cli/stdout", cli.stdout);
-  bind("wasi:cli/stderr", cli.stderr);
-  bind("wasi:cli/terminal-input", cli.terminalInput);
-  bind("wasi:cli/terminal-output", cli.terminalOutput);
-  bind("wasi:cli/terminal-stdin", cli.terminalStdin);
-  bind("wasi:cli/terminal-stdout", cli.terminalStdout);
-  bind("wasi:cli/terminal-stderr", cli.terminalStderr);
-  bind("wasi:clocks/monotonic-clock", clocks.monotonicClock);
-  bind("wasi:clocks/wall-clock", clocks.wallClock);
-  bind("wasi:io/error", io.error);
-  bind("wasi:io/poll", io.poll);
-  bind("wasi:io/streams", io.streams);
-  return imports;
+  return bindCoreImports({
+    wasi: { cli, clocks, io },
+    env,
+    sut: { "polymorph:websocket/connections": connections },
+  });
 }
 
-/** One environment interface for both legs (explicit > shim-internal). */
-export function envInterface(vars) {
-  return {
-    getEnvironment: () => vars,
-    getArguments: () => [],
-    initialCwd: () => undefined,
-  };
-}
+export { envInterface };
 
 /**
  * Run the whole suite through the upstream case loop. `newInstance()`
diff --git a/conformance/driver-ct/jco/package.json b/conformance/driver-ct/jco/package.json
index dc35718..9c19e05 100644
--- a/conformance/driver-ct/jco/package.json
+++ b/conformance/driver-ct/jco/package.json
@@ -6,14 +6,14 @@
   "description": "jco legs (Node + headless browser) for the component-test conformance suite: transpile the suite, bind the browser-first host and the test-context shim, emit component-test results JSONL.",
   "packageManager": "pnpm@10.34.5",
   "scripts": {
-    "transpile": "node ../../../scripts/jco-transpile.mjs transpile ../../../target/wasm32-wasip2/release/conformance_guest_ct.wasm --name conformance-guest-ct -I async -o generated",
+    "transpile": "component-test-jco-transpile transpile ../../../target/wasm32-wasip2/release/conformance_guest_ct.wasm --name conformance-guest-ct -I async -o generated",
     "run:node": "node --experimental-wasm-jspi run-node.mjs",
     "run:browser": "node run-browser.mjs"
   },
   "devDependencies": {
     "@bytecodealliance/jco-transpile": "https://github.com/lann/jco/releases/download/jco-transpile-0.6.2-fa6990d/bytecodealliance-jco-transpile-0.6.2.tgz",
     "@bytecodealliance/preview2-shim": "^0.17.2",
-    "@polymorph/component-test-js": "github:polymorph-components/polymorph-test#824d100349dc7804c9bf1723d9b1ba0ed40fa940",
+    "@polymorph/component-test-js": "github:polymorph-components/polymorph-test#76c094576076284c1a7d0ea1b7bb724e9e7384a5",
     "playwright-core": "^1.61.1"
   },
   "engines": {
diff --git a/conformance/driver-ct/jco/pnpm-lock.yaml b/conformance/driver-ct/jco/pnpm-lock.yaml
index e1d5ea1..f748f28 100644
--- a/conformance/driver-ct/jco/pnpm-lock.yaml
+++ b/conformance/driver-ct/jco/pnpm-lock.yaml
@@ -15,8 +15,8 @@ importers:
         specifier: ^0.17.2
         version: 0.17.9
       '@polymorph/component-test-js':
-        specifier: github:polymorph-components/polymorph-test#824d100349dc7804c9bf1723d9b1ba0ed40fa940
-        version: https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/824d100349dc7804c9bf1723d9b1ba0ed40fa940
+        specifier: github:polymorph-components/polymorph-test#76c094576076284c1a7d0ea1b7bb724e9e7384a5
+        version: https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/76c094576076284c1a7d0ea1b7bb724e9e7384a5
       playwright-core:
         specifier: ^1.61.1
         version: 1.62.1
@@ -182,9 +182,10 @@ packages:
     cpu: [x64]
     os: [win32]
 
-  '@polymorph/component-test-js@https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/824d100349dc7804c9bf1723d9b1ba0ed40fa940':
-    resolution: {gitHosted: true, integrity: sha512-KD9z6BjwVHAt5uxWfLeBqMNWALREu1NluYXJz1ucRhkab+OplvHvg1Flh+5Afo8U4EWUtqXE5JzKm2wWPL06tA==, tarball: https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/824d100349dc7804c9bf1723d9b1ba0ed40fa940}
+  '@polymorph/component-test-js@https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/76c094576076284c1a7d0ea1b7bb724e9e7384a5':
+    resolution: {gitHosted: true, integrity: sha512-e1ojI6hXZB3RQBrQdxob0BNg0+S3sVAKAOykKs9iqfy3qXVWFsQa+nXJ+px1bXXGB7TBSauJygWin9ANtNZAHw==, tarball: https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/76c094576076284c1a7d0ea1b7bb724e9e7384a5}
     version: 0.2.0
+    hasBin: true
 
   '@tybys/wasm-util@0.10.3':
     resolution: {integrity: sha512-F3fo1MYrRJYL3zER0OUOmkutjr1Vp23m7OsSgp7nq4SP6OqX6C/56XFIPAl5bt3zaBRjmW7SGz3u/6LwFpYcOg==}
@@ -311,7 +312,7 @@ snapshots:
   '@oxc-minify/binding-win32-x64-msvc@0.136.0':
     optional: true
 
-  '@polymorph/component-test-js@https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/824d100349dc7804c9bf1723d9b1ba0ed40fa940': {}
+  '@polymorph/component-test-js@https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/76c094576076284c1a7d0ea1b7bb724e9e7384a5': {}
 
   '@tybys/wasm-util@0.10.3':
     dependencies:
diff --git a/conformance/driver-ct/jco/run-browser.mjs b/conformance/driver-ct/jco/run-browser.mjs
index 4f82638..2b549c3 100644
--- a/conformance/driver-ct/jco/run-browser.mjs
+++ b/conformance/driver-ct/jco/run-browser.mjs
@@ -40,6 +40,7 @@ const IMPORT_MAP = JSON.stringify({
   imports: {
     "@polymorph/component-test-js/harness": "/ct/harness.mjs",
     "@polymorph/component-test-js/context": "/ct/context.js",
+    "@polymorph/component-test-js/imports": "/ct/imports.mjs",
   },
 });
 
diff --git a/conformance/driver-ct/justfile b/conformance/driver-ct/justfile
index e1492e5..f9b13d3 100644
--- a/conformance/driver-ct/justfile
+++ b/conformance/driver-ct/justfile
@@ -39,14 +39,18 @@ build-driver:
 _ct-tools:
     #!/usr/bin/env bash
     set -euo pipefail
-    block="$(grep -m1 -A2 '^name = "component-test-sdk"' '{{root}}/Cargo.lock')"
-    rev="$(grep -oE '[0-9a-f]{40}' <<< "$block" | head -1)"
-    url="$(grep -oE 'git\+[^?"]+' <<< "$block" | head -1 | cut -c5-)"
-    { [ -n "$rev" ] && [ -n "$url" ]; } || { echo "no component-test git source in Cargo.lock" >&2; exit 1; }
-    cargo install --locked --git "$url" --rev "$rev" \
-        component-test-cli --root '{{root}}/target/ct-tools'
-    '{{ct_cli}}' pins --cargo-lock '{{root}}/Cargo.lock' \
-        --js-lock jco/pnpm-lock.yaml --expect "$rev" > /dev/null
+    cd '{{root}}'
+    src=$(grep -m1 -A2 '^name = "component-test-sdk"' Cargo.lock | grep '^source = "git+')
+    url=$(printf '%s' "$src" | sed -E 's/^source = "git\+([^?]+)\?.*/\1/')
+    rev=$(printf '%s' "$src" | grep -oE '[0-9a-f]{40}' | head -n1)
+    if [ ! -x target/ct-tools/bin/component-test ] || [ "$(cat target/ct-tools/.rev 2>/dev/null)" != "$rev" ]; then
+        cargo install --locked --root target/ct-tools --git "$url" --rev "$rev" component-test-cli
+        printf '%s' "$rev" > target/ct-tools/.rev
+    fi
+    target/ct-tools/bin/component-test pins --cargo-lock Cargo.lock \
+        --js-lock conformance/driver-ct/jco/pnpm-lock.yaml \
+        --js-lock js/componentize/wpt/parity/pnpm-lock.yaml \
+        --expect "$rev" > /dev/null
 
 build-echod:
     cargo build --manifest-path {{root}}/Cargo.toml -p conformance-echod
diff --git a/js/componentize/wpt/parity/package.json b/js/componentize/wpt/parity/package.json
index bb3398a..e86cb79 100644
--- a/js/componentize/wpt/parity/package.json
+++ b/js/componentize/wpt/parity/package.json
@@ -6,9 +6,9 @@
   "description": "WPT parity gate: the vendored WebSocket suites run directly against the platform's WebSocket (baseline) and through the componentized shim transpiled by jco against websocket-jco (round trip); compare.mjs holds the round trip to the baseline's pass set.",
   "packageManager": "pnpm@10.34.5",
   "scripts": {
-    "transpile": "node ../../../../scripts/jco-transpile.mjs transpile ../build/parity-runner.component.wasm --name parity-runner --async-mode jspi --map 'polymorph:websocket/*@0.1.0=../../../../jco/websocket.js#*' --map 'wpt:parity/reporter@0.1.0=../../reporter.js#reporter' -o generated",
-    "transpile:web": "node ../../../../scripts/jco-transpile.mjs transpile ../build/parity-runner.component.wasm --name parity-runner --async-mode jspi --map 'polymorph:websocket/*@0.1.0=../../../../jco/websocket.js#*' --map 'wpt:parity/reporter@0.1.0=../../reporter.js#reporter' --map 'wasi:cli/*=../node_modules/@bytecodealliance/preview2-shim/dist/browser/cli.js#*' --map 'wasi:clocks/*=../node_modules/@bytecodealliance/preview2-shim/dist/browser/clocks.js#*' --map 'wasi:filesystem/*=../node_modules/@bytecodealliance/preview2-shim/dist/browser/filesystem.js#*' --map 'wasi:io/*=../node_modules/@bytecodealliance/preview2-shim/dist/browser/io.js#*' --map 'wasi:random/*=../node_modules/@bytecodealliance/preview2-shim/dist/browser/random.js#*' --map 'wasi:sockets/*=../sockets-stub.mjs#*' -o generated-web",
-    "transpile:smoke": "node ../../../../scripts/jco-transpile.mjs transpile ../build/smoke.component.wasm --name smoke --async-mode jspi --map 'polymorph:websocket/*@0.1.0=../../../../jco/websocket.js#*' --map 'wpt:parity/reporter@0.1.0=../../reporter.js#reporter' -o generated-smoke",
+    "transpile": "component-test-jco-transpile transpile ../build/parity-runner.component.wasm --name parity-runner --async-mode jspi --map 'polymorph:websocket/*@0.1.0=../../../../jco/websocket.js#*' --map 'wpt:parity/reporter@0.1.0=../../reporter.js#reporter' -o generated",
+    "transpile:web": "component-test-jco-transpile transpile ../build/parity-runner.component.wasm --name parity-runner --async-mode jspi --map 'polymorph:websocket/*@0.1.0=../../../../jco/websocket.js#*' --map 'wpt:parity/reporter@0.1.0=../../reporter.js#reporter' --map 'wasi:cli/*=../node_modules/@bytecodealliance/preview2-shim/dist/browser/cli.js#*' --map 'wasi:clocks/*=../node_modules/@bytecodealliance/preview2-shim/dist/browser/clocks.js#*' --map 'wasi:filesystem/*=../node_modules/@bytecodealliance/preview2-shim/dist/browser/filesystem.js#*' --map 'wasi:io/*=../node_modules/@bytecodealliance/preview2-shim/dist/browser/io.js#*' --map 'wasi:random/*=../node_modules/@bytecodealliance/preview2-shim/dist/browser/random.js#*' --map 'wasi:sockets/*=../sockets-stub.mjs#*' -o generated-web",
+    "transpile:smoke": "component-test-jco-transpile transpile ../build/smoke.component.wasm --name smoke --async-mode jspi --map 'polymorph:websocket/*@0.1.0=../../../../jco/websocket.js#*' --map 'wpt:parity/reporter@0.1.0=../../reporter.js#reporter' -o generated-smoke",
     "baseline": "node baseline.mjs",
     "roundtrip": "node --experimental-wasm-jspi roundtrip.mjs",
     "compare": "node compare.mjs"
@@ -19,6 +19,7 @@
   "devDependencies": {
     "@bytecodealliance/jco-transpile": "https://github.com/lann/jco/releases/download/jco-transpile-0.6.2-fa6990d/bytecodealliance-jco-transpile-0.6.2.tgz",
     "@bytecodealliance/preview2-shim": "^0.19.0",
+    "@polymorph/component-test-js": "github:polymorph-components/polymorph-test#76c094576076284c1a7d0ea1b7bb724e9e7384a5",
     "playwright-core": "^1.61.1"
   }
 }
diff --git a/js/componentize/wpt/parity/pnpm-lock.yaml b/js/componentize/wpt/parity/pnpm-lock.yaml
index 28cfb4a..aab3f37 100644
--- a/js/componentize/wpt/parity/pnpm-lock.yaml
+++ b/js/componentize/wpt/parity/pnpm-lock.yaml
@@ -14,6 +14,9 @@ importers:
       '@bytecodealliance/preview2-shim':
         specifier: ^0.19.0
         version: 0.19.0
+      '@polymorph/component-test-js':
+        specifier: github:polymorph-components/polymorph-test#76c094576076284c1a7d0ea1b7bb724e9e7384a5
+        version: https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/76c094576076284c1a7d0ea1b7bb724e9e7384a5
       playwright-core:
         specifier: ^1.61.1
         version: 1.62.1
@@ -176,6 +179,11 @@ packages:
     cpu: [x64]
     os: [win32]
 
+  '@polymorph/component-test-js@https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/76c094576076284c1a7d0ea1b7bb724e9e7384a5':
+    resolution: {gitHosted: true, integrity: sha512-e1ojI6hXZB3RQBrQdxob0BNg0+S3sVAKAOykKs9iqfy3qXVWFsQa+nXJ+px1bXXGB7TBSauJygWin9ANtNZAHw==, tarball: https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/76c094576076284c1a7d0ea1b7bb724e9e7384a5}
+    version: 0.2.0
+    hasBin: true
+
   '@tybys/wasm-util@0.10.3':
     resolution: {integrity: sha512-F3fo1MYrRJYL3zER0OUOmkutjr1Vp23m7OsSgp7nq4SP6OqX6C/56XFIPAl5bt3zaBRjmW7SGz3u/6LwFpYcOg==}
 
@@ -299,6 +307,8 @@ snapshots:
   '@oxc-minify/binding-win32-x64-msvc@0.136.0':
     optional: true
 
+  '@polymorph/component-test-js@https://codeload.github.com/polymorph-components/polymorph-test/tar.gz/76c094576076284c1a7d0ea1b7bb724e9e7384a5': {}
+
   '@tybys/wasm-util@0.10.3':
     dependencies:
       tslib: 2.8.1
diff --git a/justfile b/justfile
index 50fc0bf..bfb0e88 100644
--- a/justfile
+++ b/justfile
@@ -60,7 +60,6 @@ check-js:
     node --check conformance/driver-ct/jco/run-browser.mjs
     node --check conformance/server/echod.mjs
     node --check scripts/chrome.mjs
-    node --check scripts/jco-transpile.mjs
     node --check examples/jco-demo/run.mjs
     @echo "js: ok"
 
diff --git a/scripts/jco-transpile.mjs b/scripts/jco-transpile.mjs
deleted file mode 100644
index 5253417..0000000
--- a/scripts/jco-transpile.mjs
+++ /dev/null
@@ -1,78 +0,0 @@
-#!/usr/bin/env node
-// Thin CLI over @bytecodealliance/jco-transpile, covering the two jco
-// commands this repository uses: `transpile` (component to ES module) and
-// `types` (host-side type definitions for a WIT world). jco-transpile is
-// the transpilation half of jco, published without the componentization
-// toolchain (componentize-js, weval) that the full jco CLI drags in and
-// nothing here runs.
-//
-// The library is resolved from the invoking package's node_modules — each
-// package tree pins its own toolchain version — so this script must be run
-// with the package directory as the working directory, which is how every
-// package.json script invokes it.
-//
-// The option spellings match the jco CLI's, and the library applies the
-// same defaults the CLI did (name derivation, the wasi-shim map entries,
-// output-path prefixing), so the generated trees are bit-identical to
-// `jco transpile` / `jco types` output for these invocations.
-
-import { createRequire } from "node:module";
-import { join } from "node:path";
-import { pathToFileURL } from "node:url";
-import { parseArgs } from "node:util";
-
-const require = createRequire(join(process.cwd(), "package.json"));
-const { transpile, generateHostTypes, writeFiles } = await import(
-  pathToFileURL(require.resolve("@bytecodealliance/jco-transpile")).href
-);
-
-const [command, path, ...rest] = process.argv.slice(2);
-const { values } = parseArgs({
-  args: rest,
-  options: {
-    name: { type: "string" },
-    "async-mode": { type: "string" },
-    instantiation: { type: "string", short: "I" },
-    map: { type: "string", multiple: true },
-    "world-name": { type: "string" },
-    "out-dir": { type: "string", short: "o" },
-    // `types` only: WIT `@unstable` gates to enable, like `jco types
-    // --feature` (repeatable).
-    feature: { type: "string", multiple: true },
-  },
-});
-
-switch (command) {
-  case "transpile": {
-    const map = Object.fromEntries(
-      (values.map ?? []).map((entry) => {
-        const eq = entry.indexOf("=");
-        if (eq === -1) {
-          throw new Error(`--map entry has no '=': ${entry}`);
-        }
-        return [entry.slice(0, eq), entry.slice(eq + 1)];
-      }),
-    );
-    const { files } = await transpile(path, {
-      name: values.name,
-      asyncMode: values["async-mode"],
-      instantiation: values.instantiation,
-      map,
-      outDir: values["out-dir"],
-    });
-    await writeFiles(files);
-    break;
-  }
-  case "types": {
-    const files = await generateHostTypes(path, {
-      worldName: values["world-name"],
-      asyncMode: values["async-mode"],
-      outDir: values["out-dir"],
-      features: values.feature,
-    });
-    await writeFiles(files);
-    break;
-  }
-  default:
-    throw new Error(`unknown command: ${command} (expected transpile or types)`);
-}