diff --git a/experiments/iroh-blobs/host/browser-entry.ts b/experiments/iroh-blobs/host/browser-entry.ts
index 535db5b..141c892 100644
--- a/experiments/iroh-blobs/host/browser-entry.ts
+++ b/experiments/iroh-blobs/host/browser-entry.ts
@@ -3,31 +3,34 @@
 // (browser-test.mjs) to await and assert on.
 //
 // Bundled by browser-test.mjs with `deno bundle --platform browser` into
-// dist/browser-entry.js; the page passes the translator-shim URL as the
-// `translator` query parameter and the guest component is fetched
-// relative to this experiment.
+// dist/browser-entry.js; the harness pre-translates the guest with
+// translate.ts (embedder-api A4), so the page fetches the component plus
+// its envelope and no translator ships to the browser.
 
 import { stats } from "./sockets.ts";
 import { bridgeStats } from "./bridge.ts";
 import { webrtcStats } from "./webrtc-bridge.ts";
-import { guestImports, runGuest } from "../../iroh-relay-ws/host/harness.ts";
+import { artifactsFrom, guestImports, runGuest } from "../../iroh-relay-ws/host/harness.ts";
 
 const logEl = document.getElementById("log")!;
 const t0 = performance.now();
 
 try {
-  const params = new URLSearchParams(location.search);
-  const translatorUrl = params.get("translator");
-  if (!translatorUrl) throw new Error("missing ?translator=<url> (see browser-test.mjs)");
   const fetchBytes = async (url: string): Promise<Uint8Array> => {
     const resp = await fetch(url);
     if (!resp.ok) throw new Error(`GET ${url}: ${resp.status}`);
     return new Uint8Array(await resp.arrayBuffer());
   };
-  const [translator, componentBytes] = await Promise.all([
-    fetchBytes(translatorUrl),
+  const fetchText = async (url: string): Promise<string> => {
+    const resp = await fetch(url);
+    if (!resp.ok) throw new Error(`GET ${url}: ${resp.status}`);
+    return resp.text();
+  };
+  const [componentBytes, envelope] = await Promise.all([
     fetchBytes("../guest/target/wasm32-wasip2/release/iroh-blobs-guest.wasm"),
+    fetchText("./dist/iroh-blobs-guest.plan.json"),
   ]);
+  const artifacts = artifactsFrom(envelope, componentBytes);
   console.log(`[driver] loaded in ${(performance.now() - t0).toFixed(1)}ms`);
 
   const env: Record<string, string> = {};
@@ -39,7 +42,7 @@ try {
   if (relay) env.RELAY = relay;
 
   await runGuest(
-    { componentBytes, translator },
+    artifacts,
     guestImports({ args: ["iroh-blobs-guest"], env }),
   );
   const summary =
diff --git a/experiments/iroh-blobs/host/browser-test.mjs b/experiments/iroh-blobs/host/browser-test.mjs
index b750a7e..11f75fc 100644
--- a/experiments/iroh-blobs/host/browser-test.mjs
+++ b/experiments/iroh-blobs/host/browser-test.mjs
@@ -2,9 +2,10 @@
 // live relay→webrtc migration + blob transfer happened. Companion to
 // run.ts (Deno path).
 //
-// - fetches the pinned deltic translator shim (host-deltic/fetch-translator.ts)
-//   and bundles the page driver with `deno bundle --platform browser`,
-// - serves the repository root over HTTP (the guest and translator fetches
+// - pre-translates the guest (translate.ts, embedder-api A4 envelope) and
+//   bundles the page driver with `deno bundle --platform browser` — the
+//   page fetches component + envelope; no translator ships to the browser,
+// - serves the repository root over HTTP (the guest and envelope fetches
 //   resolve there, and COOP/COEP headers buy 5us timers for the guest's
 //   RTT measurements),
 // - reuses a running iroh-relay on 127.0.0.1:3340 or starts one,
@@ -19,13 +20,17 @@ import { readFile } from "node:fs/promises";
 import { spawn } from "node:child_process";
 import { execFile } from "node:child_process";
 import { promisify } from "node:util";
-import { extname, join, normalize, relative } from "node:path";
+import { extname, join, normalize } from "node:path";
 import { fileURLToPath } from "node:url";
 import { chromium } from "playwright";
 
 const HOST_DIR = fileURLToPath(new URL(".", import.meta.url));
 const ROOT = fileURLToPath(new URL("../../..", import.meta.url));
 const PAGE_PATH = "/experiments/iroh-blobs/host/browser.html";
+const GUEST_WASM = join(
+  HOST_DIR,
+  "../guest/target/wasm32-wasip2/release/iroh-blobs-guest.wasm",
+);
 const RELAY_BIN = join(ROOT, ".deps/iroh/target/release/iroh-relay");
 const TIMEOUT_MS = 90_000;
 
@@ -39,20 +44,19 @@ const MIME = {
 
 const run = promisify(execFile);
 
-/** Fetch (cached) the pinned translator shim; return its URL path under ROOT. */
-async function fetchTranslator() {
-  const { stdout } = await run("deno", [
+/** Pre-translate the guest (A4): the page fetches this envelope. */
+async function translateGuest() {
+  await run("deno", [
     "run",
     "--config",
-    join(ROOT, "host-deltic/deno.json"),
+    join(HOST_DIR, "../../iroh-relay-ws/host/deno.json"),
     "--frozen",
     `--allow-read=${ROOT}`,
-    `--allow-write=${join(ROOT, "target/deltic")}`,
-    "--allow-net=github.com,objects.githubusercontent.com,release-assets.githubusercontent.com",
-    join(ROOT, "host-deltic/fetch-translator.ts"),
-  ]);
-  const path = stdout.trim();
-  return `/${relative(ROOT, path).split("\\").join("/")}`;
+    `--allow-write=${join(HOST_DIR, "dist")}`,
+    join(HOST_DIR, "../../iroh-relay-ws/host/translate.ts"),
+    GUEST_WASM,
+    join(HOST_DIR, "dist/iroh-blobs-guest.plan.json"),
+  ], { cwd: HOST_DIR });
 }
 
 async function bundleEntry() {
@@ -133,14 +137,12 @@ async function runPage(browser, url, lines) {
 }
 
 const headed = process.argv.includes("--headed");
-console.log("[harness] fetching translator + bundling the page driver");
-const translatorPath = await fetchTranslator();
+console.log("[harness] translating the guest + bundling the page driver");
+await translateGuest();
 await bundleEntry();
 const relay = await ensureRelay();
 const server = await serveRoot();
-const url = `http://127.0.0.1:${server.address().port}${PAGE_PATH}?translator=${
-  encodeURIComponent(translatorPath)
-}`;
+const url = `http://127.0.0.1:${server.address().port}${PAGE_PATH}`;
 console.log(`[harness] serving ${url}`);
 
 const lines = [];
diff --git a/experiments/iroh-blobs/host/run.ts b/experiments/iroh-blobs/host/run.ts
index 01b038d..44478ae 100644
--- a/experiments/iroh-blobs/host/run.ts
+++ b/experiments/iroh-blobs/host/run.ts
@@ -3,9 +3,10 @@
 // WebRTC). The guest prints its own results; this driver adds a
 // watchdog and the shim/bridge counters.
 //
-// Runs on stock Deno: run.sh fetches the pinned translator shim and
-// exports its path as DELTIC_TRANSLATOR.
+// Runs on stock Deno; the translator is `@deltic/translator`'s packaged
+// asset, loaded through the module graph.
 
+import { defaultTranslator } from "@deltic/translator";
 import { stats } from "./sockets.ts";
 import { bridgeStats } from "./bridge.ts";
 import { webrtcStats } from "./webrtc-bridge.ts";
@@ -28,19 +29,10 @@ const watchdog = setTimeout(() => {
   Deno.exit(1);
 }, WATCHDOG_MS);
 
-const shimPath = Deno.env.get("DELTIC_TRANSLATOR");
-if (!shimPath) {
-  console.error(
-    "[driver] DELTIC_TRANSLATOR is unset — run this through run.sh, which " +
-      "fetches the pinned translator shim (host-deltic/fetch-translator.ts).",
-  );
-  Deno.exit(2);
-}
-
 const t0 = performance.now();
 const artifacts = {
   componentBytes: await Deno.readFile(GUEST_WASM),
-  translator: await Deno.readFile(shimPath),
+  translator: await defaultTranslator(),
 };
 console.log(`[driver] loaded in ${(performance.now() - t0).toFixed(1)}ms`);
 
diff --git a/experiments/iroh-blobs/run.sh b/experiments/iroh-blobs/run.sh
index 58f265d..802897a 100755
--- a/experiments/iroh-blobs/run.sh
+++ b/experiments/iroh-blobs/run.sh
@@ -1,7 +1,8 @@
 #!/usr/bin/env bash
 # Runs the iroh-blobs spike end to end: a stock iroh-relay server (from
 # .deps/iroh, built by the just recipe), then the deltic host on stock
-# Deno driving the wasip2 guest — runtime-linked, no transpile step.
+# Deno driving the wasip2 guest — runtime-linked, no transpile step; the
+# translator ships inside the pinned @deltic/translator package.
 # Reuses an already-running relay on 127.0.0.1:3340; kills only what it
 # started.
 set -euo pipefail
@@ -20,14 +21,4 @@ if ! curl -s -m 2 http://127.0.0.1:3340 >/dev/null 2>&1; then
     done
 fi
 
-# The sha256-pinned translator shim, cached under target/deltic/ (the pin
-# and the cache live with host-deltic; the deltic tag in
-# ../iroh-relay-ws/host/deno.json — the shared config for every
-# experiment — matches it).
-shim=$(deno run --config ../../host-deltic/deno.json --frozen \
-    --allow-read=../.. --allow-write=../../target/deltic \
-    --allow-net=github.com,objects.githubusercontent.com,release-assets.githubusercontent.com \
-    ../../host-deltic/fetch-translator.ts)
-
-DELTIC_TRANSLATOR="$shim" timeout 120 \
-    deno run -A --config ../iroh-relay-ws/host/deno.json --frozen host/run.ts
+timeout 120 deno run -A --config ../iroh-relay-ws/host/deno.json --frozen host/run.ts
diff --git a/experiments/iroh-relay-ws/host/browser-entry.ts b/experiments/iroh-relay-ws/host/browser-entry.ts
index 1f45dbb..874ce4a 100644
--- a/experiments/iroh-relay-ws/host/browser-entry.ts
+++ b/experiments/iroh-relay-ws/host/browser-entry.ts
@@ -3,31 +3,34 @@
 // (browser-test.mjs) to await and assert on.
 //
 // Bundled by browser-test.mjs with `deno bundle --platform browser` into
-// dist/browser-entry.js; the page passes the translator-shim URL as the
-// `translator` query parameter and the guest component is fetched
-// relative to this experiment.
+// dist/browser-entry.js; the harness pre-translates the guest with
+// translate.ts (embedder-api A4), so the page fetches the component plus
+// its envelope and no translator ships to the browser.
 
 import { stats } from "./sockets.ts";
 import { bridgeStats } from "./bridge.ts";
 import { webrtcStats } from "./webrtc-bridge.ts";
-import { guestImports, runGuest } from "./harness.ts";
+import { artifactsFrom, guestImports, runGuest } from "./harness.ts";
 
 const logEl = document.getElementById("log")!;
 const t0 = performance.now();
 
 try {
-  const params = new URLSearchParams(location.search);
-  const translatorUrl = params.get("translator");
-  if (!translatorUrl) throw new Error("missing ?translator=<url> (see browser-test.mjs)");
   const fetchBytes = async (url: string): Promise<Uint8Array> => {
     const resp = await fetch(url);
     if (!resp.ok) throw new Error(`GET ${url}: ${resp.status}`);
     return new Uint8Array(await resp.arrayBuffer());
   };
-  const [translator, componentBytes] = await Promise.all([
-    fetchBytes(translatorUrl),
+  const fetchText = async (url: string): Promise<string> => {
+    const resp = await fetch(url);
+    if (!resp.ok) throw new Error(`GET ${url}: ${resp.status}`);
+    return resp.text();
+  };
+  const [componentBytes, envelope] = await Promise.all([
     fetchBytes("../guest/target/wasm32-wasip2/release/iroh-relay-ws-guest.wasm"),
+    fetchText("./dist/iroh-relay-ws-guest.plan.json"),
   ]);
+  const artifacts = artifactsFrom(envelope, componentBytes);
   console.log(`[driver] loaded in ${(performance.now() - t0).toFixed(1)}ms`);
 
   const env: Record<string, string> = {};
@@ -35,7 +38,7 @@ try {
   if (rustLog) env.RUST_LOG = rustLog;
 
   await runGuest(
-    { componentBytes, translator },
+    artifacts,
     guestImports({ args: ["iroh-relay-ws-guest"], env }),
   );
   const summary =
diff --git a/experiments/iroh-relay-ws/host/browser-test.mjs b/experiments/iroh-relay-ws/host/browser-test.mjs
index d2ee792..fa001fe 100644
--- a/experiments/iroh-relay-ws/host/browser-test.mjs
+++ b/experiments/iroh-relay-ws/host/browser-test.mjs
@@ -1,9 +1,10 @@
 // Playwright harness: runs the spike in a real Chromium and asserts the
 // live relay→webrtc migration happened. Companion to run.ts (Deno path).
 //
-// - fetches the pinned deltic translator shim (host-deltic/fetch-translator.ts)
-//   and bundles the page driver with `deno bundle --platform browser`,
-// - serves the repository root over HTTP (the guest/translator fetches
+// - pre-translates the guest (translate.ts, embedder-api A4 envelope) and
+//   bundles the page driver with `deno bundle --platform browser` — the
+//   page fetches component + envelope; no translator ships to the browser,
+// - serves the repository root over HTTP (the guest/envelope fetches
 //   resolve there, and COOP/COEP headers buy 5us timers for the guest's
 //   RTT measurements),
 // - reuses a running iroh-relay on 127.0.0.1:3340 or starts one,
@@ -18,13 +19,17 @@ import { readFile } from "node:fs/promises";
 import { spawn } from "node:child_process";
 import { execFile } from "node:child_process";
 import { promisify } from "node:util";
-import { extname, join, normalize, relative } from "node:path";
+import { extname, join, normalize } from "node:path";
 import { fileURLToPath } from "node:url";
 import { chromium } from "playwright";
 
 const HOST_DIR = fileURLToPath(new URL(".", import.meta.url));
 const ROOT = fileURLToPath(new URL("../../..", import.meta.url));
 const PAGE_PATH = "/experiments/iroh-relay-ws/host/browser.html";
+const GUEST_WASM = join(
+  HOST_DIR,
+  "../guest/target/wasm32-wasip2/release/iroh-relay-ws-guest.wasm",
+);
 const RELAY_BIN = join(ROOT, ".deps/iroh/target/release/iroh-relay");
 const TIMEOUT_MS = 90_000;
 
@@ -38,20 +43,19 @@ const MIME = {
 
 const run = promisify(execFile);
 
-/** Fetch (cached) the pinned translator shim; return its URL path under ROOT. */
-async function fetchTranslator() {
-  const { stdout } = await run("deno", [
+/** Pre-translate the guest (A4): the page fetches this envelope. */
+async function translateGuest() {
+  await run("deno", [
     "run",
     "--config",
-    join(ROOT, "host-deltic/deno.json"),
+    join(HOST_DIR, "deno.json"),
     "--frozen",
     `--allow-read=${ROOT}`,
-    `--allow-write=${join(ROOT, "target/deltic")}`,
-    "--allow-net=github.com,objects.githubusercontent.com,release-assets.githubusercontent.com",
-    join(ROOT, "host-deltic/fetch-translator.ts"),
-  ]);
-  const path = stdout.trim();
-  return `/${relative(ROOT, path).split("\\").join("/")}`;
+    `--allow-write=${join(HOST_DIR, "dist")}`,
+    join(HOST_DIR, "translate.ts"),
+    GUEST_WASM,
+    join(HOST_DIR, "dist/iroh-relay-ws-guest.plan.json"),
+  ], { cwd: HOST_DIR });
 }
 
 async function bundleEntry() {
@@ -130,14 +134,12 @@ async function runPage(browser, url, lines) {
 }
 
 const headed = process.argv.includes("--headed");
-console.log("[harness] fetching translator + bundling the page driver");
-const translatorPath = await fetchTranslator();
+console.log("[harness] translating the guest + bundling the page driver");
+await translateGuest();
 await bundleEntry();
 const relay = await ensureRelay();
 const server = await serveRoot();
-const url = `http://127.0.0.1:${server.address().port}${PAGE_PATH}?translator=${
-  encodeURIComponent(translatorPath)
-}`;
+const url = `http://127.0.0.1:${server.address().port}${PAGE_PATH}`;
 console.log(`[harness] serving ${url}`);
 
 const lines = [];
diff --git a/experiments/iroh-relay-ws/host/browser.html b/experiments/iroh-relay-ws/host/browser.html
index 44d34e8..30818f1 100644
--- a/experiments/iroh-relay-ws/host/browser.html
+++ b/experiments/iroh-relay-ws/host/browser.html
@@ -1,8 +1,8 @@
 <!doctype html>
 <!-- Browser harness for the iroh-relay-ws spike: the same sockets shim,
      bridges, and deltic runtime as the Deno driver, runtime-linked in the
-     browser (JSPI). Serve from the repository root so the guest and
-     translator fetches resolve; driven by browser-test.mjs, which bundles
+     browser (JSPI). Serve from the repository root so the guest and envelope
+     fetches resolve; driven by browser-test.mjs, which bundles
      dist/browser-entry.js first. -->
 <html>
   <head>
diff --git a/experiments/iroh-relay-ws/host/deno.json b/experiments/iroh-relay-ws/host/deno.json
index a36afa9..16374b7 100644
--- a/experiments/iroh-relay-ws/host/deno.json
+++ b/experiments/iroh-relay-ws/host/deno.json
@@ -1,14 +1,18 @@
 {
-  "//": "MODULE-IDENTITY CONSTRAINT: deltic's wasi-shims and the sibling deltic host modules (.deps/{websocket,webrtc}) import @deltic/runtime/embedder by bare specifier internally; this file maps that specifier ONCE for the whole module graph, so `instanceof WitError` holds across every boundary. This is the ONE deno config for all three experiments (iroh-relay-ws, iroh-blobs, ping-demo): the others pass --config pointing here, so the deltic pin below is written once. The tag matches host-deltic/deno.json and host-deltic/fetch-translator.ts's TAG (the pin gate there checks all of them; see host-deltic/README.md, 'The pin'). @deltic/runtime/plan serves the translate CLI's envelope self-check (ping-demo/build.sh). The npm mappings serve the webrtc module's bare specifiers under Deno; a browser build resolves the RTCPeerConnection global instead. compilerOptions.lib carries dom next to deno.ns so the browser entries (browser-entry.ts, ping-demo's demo.ts/overlay.ts) type-check in the same graph as the Deno drivers (needs polymorph-websocket >= #44's dom-lib fix).",
+  "//": "MODULE-IDENTITY CONSTRAINT: deltic's wasi-shims and the sibling deltic host modules (.deps/{websocket,webrtc}) import @deltic/runtime/embedder by bare specifier internally; this file maps that specifier ONCE for the whole module graph, so `instanceof WitError` holds across every boundary. This is the ONE deno config for all three experiments (iroh-relay-ws, iroh-blobs, ping-demo): the others pass --config pointing here. deltic arrives as exactly-pinned JSR prereleases (0.1.0-pre.g<shorthash> names one upstream commit; @deltic/translator ships the translator wasm for the SAME commit); the version matches host-deltic/deno.json by repo convention (exam-deltic asserts it; see host-deltic/README.md, 'The pin'). minimumDependencyAge keeps Deno's default supply-chain gate for everything else while letting same-day @deltic prereleases resolve. The npm mappings serve the webrtc module's bare specifiers under Deno; a browser build resolves the RTCPeerConnection global instead. compilerOptions.lib carries dom next to deno.ns so the browser entries (browser-entry.ts, ping-demo's demo.ts/overlay.ts) type-check in the same graph as the Deno drivers.",
   "nodeModulesDir": "auto",
+  "minimumDependencyAge": {
+    "age": "P1D",
+    "exclude": ["jsr:@deltic/*"]
+  },
   "compilerOptions": {
     "lib": ["dom", "dom.iterable", "dom.asynciterable", "deno.ns"]
   },
   "imports": {
-    "@deltic/runtime/embedder": "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/mod.ts",
-    "@deltic/runtime/plan": "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/plan/mod.ts",
-    "@deltic/runtime/shim": "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/shim/mod.ts",
-    "@deltic/wasi-shims": "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/mod.ts",
+    "@deltic/runtime/embedder": "jsr:@deltic/runtime@0.1.0-pre.ga67ee83/embedder",
+    "@deltic/runtime/shim": "jsr:@deltic/runtime@0.1.0-pre.ga67ee83/shim",
+    "@deltic/translator": "jsr:@deltic/translator@0.1.0-pre.ga67ee83",
+    "@deltic/wasi-shims": "jsr:@deltic/wasi-shims@0.1.0-pre.ga67ee83",
     "node-datachannel": "npm:node-datachannel@0.32.3",
     "node-datachannel/polyfill": "npm:node-datachannel@0.32.3/polyfill",
     "werift": "npm:werift@0.22.2"
diff --git a/experiments/iroh-relay-ws/host/deno.lock b/experiments/iroh-relay-ws/host/deno.lock
index 0120a0b..7ee9e88 100644
--- a/experiments/iroh-relay-ws/host/deno.lock
+++ b/experiments/iroh-relay-ws/host/deno.lock
@@ -1,10 +1,31 @@
 {
   "version": "5",
   "specifiers": {
+    "jsr:@deltic/runtime@0.1.0-pre.ga67ee83": "0.1.0-pre.ga67ee83",
+    "jsr:@deltic/runtime@~0.1.0-pre.ga67ee83": "0.1.0-pre.ga67ee83",
+    "jsr:@deltic/translator@0.1.0-pre.ga67ee83": "0.1.0-pre.ga67ee83",
+    "jsr:@deltic/wasi-shims@0.1.0-pre.ga67ee83": "0.1.0-pre.ga67ee83",
     "npm:node-datachannel@0.32.3": "0.32.3",
     "npm:playwright@^1.62.1": "1.62.1",
     "npm:werift@0.22.2": "0.22.2"
   },
+  "jsr": {
+    "@deltic/runtime@0.1.0-pre.ga67ee83": {
+      "integrity": "2a2b0949031747a2340dc186299e654ea9f361ae39ac6bd633019940682db4ed"
+    },
+    "@deltic/translator@0.1.0-pre.ga67ee83": {
+      "integrity": "e4f1bb219e56b62262b0c9665e3f6646aa13883b2cfbb9d6306f69d19974d412",
+      "dependencies": [
+        "jsr:@deltic/runtime@~0.1.0-pre.ga67ee83"
+      ]
+    },
+    "@deltic/wasi-shims@0.1.0-pre.ga67ee83": {
+      "integrity": "a5754e65d50873e675695a51279989e22b3771e31f16a84a09feb15905c574a7",
+      "dependencies": [
+        "jsr:@deltic/runtime@~0.1.0-pre.ga67ee83"
+      ]
+    }
+  },
   "npm": {
     "@fidm/asn1@1.0.4": {
       "integrity": "sha512-esd1jyNvRb2HVaQGq2Gg8Z0kbQPXzV9Tq5Z14KNIov6KfFD6PTaRIO8UpcsYiTNzOqJpmyzWgVTrUwFV3UF4TQ=="
@@ -590,69 +611,11 @@
       "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
     }
   },
-  "remote": {
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/async_values.ts": "af1279d4e4db5b756268979aeff5b27c1cf6c0f021213655676ade90472f282b",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/context.ts": "b4b60891ef9d9e72b208636f6ba37f0b9b6962d307af6156ad3b5ad59a626902",
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-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/layout.ts": "8122141b39f4d8189c13d91fc1b37825ceead86988f879f3fa9351bbef96f8f2",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/lift.ts": "e4475a44a5618114f288025601b535bc04b97e9a37b3be21f51d3be092d419c8",
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-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/lower.ts": "916ef7476dc583783770f4c42de7a655350531b3763c81a92249cca96f5e4d80",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/memory.ts": "09728360d6413fb30a5a7bff1ba6abec1ac6474ff150d45f093b8ebe5e65cd51",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/mod.ts": "b79cf9e2bab2e837fee76fa61dc18bff66d941e08597f1b76de93811bd6d6008",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/store.ts": "ab3c1475ddce5aef1c7feb77933c19b48ab8bd54634c22a5397c9e734cfd5183",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/strings.ts": "9589dda3857725792ae15ef6888449b48e973b9eb0f3058ed64e10bf4d39b793",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/trap.ts": "307d8b48806eeba30400b3d7db9370cee70a12298851c1c19053dd8ca0013e1c",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/types.ts": "d0392e8cdf2990a76c8a1f9b85795d3b7c19b8eb006c2b159b671d08c39b9535",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/values.ts": "9e6ddcc4192d05897b2cbea250db3fef0ad9bf6548ba87aff378ee14b7ab7022",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/casing.ts": "1e9083becfc08107c09015ce3db79c304b05c40085a3c899ea1c8ebe25fcd45f",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/errors.ts": "fe1b220c22facf37948d444f97d7c8083da41c8496e6ce23b27c820ca0c2c7d7",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/imports.ts": "98cca003e4a1131c35854c91b458f109d6761a3e8f67c23730f7e9bc28bbad88",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/instantiate.ts": "1c50c17d72bca15738b161b99aa5c406ce87486110b50d09f116aa49a05c215c",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/mod.ts": "3d0be7e5d2fc784725c7ec5ddb1add5120c4f7a2c39be3d4aa3368f27834ed87",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/resources.ts": "d209e5f13545b9c0c095ac4e188b72370d97c9bd394ba7c8793ddd74f436b1ef",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/streams.ts": "f3f3374faf54bc412954692c4df7446d711fe4b6c7712b29e2cea289fcabe5a5",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/values.ts": "ed876f9103f4a4f34e8eb475934091156bee1447f5a029ea300644b8f3ee71eb",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/version.ts": "b1c589988e5fb88dce3a014846c9253399e286f12afb5fd92509c8d6090ad4bb",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/exec/boundary.ts": "3467d40646a21af853cfdf511fa1acdc9a28122c09e09dcfe124af8ce769b3d2",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/exec/executor.ts": "5d0a5b90886a79ca7c774c8ed612d8aead1acf06433406702ce97ddcf2968be1",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/exec/host_streams.ts": "38e4d6a89169616a18a1369dd6220cfbc11f2ec3d4f85ab10b5933eed76b36cb",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/exec/mod.ts": "a46320977ece14342bcb72c9c9e36d65a1cd09d789591d0909d7d1185264010b",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/async_builtins.ts": "526795358da8908d54a483bb47eebc43e0a1ea59e69ece94d0c6890ad0fa8784",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/context.ts": "be93b23d127ff71d5c372781f89d1c3746c5d32a44e67ebbcd91f2b0f0807e93",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/errors.ts": "9d09fc1818b4dc98b238aa69008a9110d9d305b6a8e806604f3bd48fca1eebcb",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/fact_calls.ts": "c28a9e07699045800105b8f8c3eb086f5550f118b1de852de72d25814ee17068",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/mod.ts": "f9c095e561f5fbb51f70693b21f272f66241f2e8ff2e1a83cd4176bcd0104eb9",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/stream_builtins.ts": "bbc1e1ea0e4616026a46d790a68695aa70589a88b08a6275acdb525f0ab531ec",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/transcode.ts": "e3fcaeb7a60b6cbad999d9389d4bce59e305e6f54e035ba791f909e10d1f82c7",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/jspi/bridge.ts": "28cb5681d63408cca14a9e307065f50188b25aa15ebe5be159ed32dc5f96f002",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/jspi/mechanics.ts": "621eb66135f516cdb488ef6388607772175ec1ef005a70f67e86d1c31f84e4db",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/jspi/mod.ts": "672aae180ad752ce07cfd83b006d24058f3aa4952a75d9a1fd256b7f804cd46a",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/jspi/suspending.ts": "8d24327f6452cf47197e01f2b5224d03fe9270968254fcaa4e8a927ea1b19041",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/jspi/types.ts": "102430fa9386026d0429d42a5365dcc2ed557af536138328325e4cd56f8ddce0",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/plan/format.ts": "90e31bbc7137c2f80c0782e1431afb6f81827aab8d38dba1178b8761f1b3ea0a",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/plan/loader.ts": "107db77e724a7f74f161a5fd20e7110a6e6f182c46f18282eba650bc887dc876",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/plan/mod.ts": "4ad969fc0760e52650dbcd299b859e79e91c6366402c2986d75d26939c2e4abc",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/shim/mod.ts": "34af2240dfd0be720def487db2db34eaad6ba9178003f20e2193d03a0632779b",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/shim/translator.ts": "9b8c558179acbf7b467db3437be71837db44cecbcc52f45e913b210b3a059dab",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/task/mod.ts": "42d2a2620eba5651016a16c16f47ec0524be525e56f78dec4956c1767b4d2002",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/task/scheduler.ts": "b6f3ecf8a3b8e51862cc60a51907009ee3cc5ba9f21a6e4dc49d54f595c04e70",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/task/streams.ts": "59e3b9b5ededc2b191b8de0728b105f8459e113e1b869b7e418150aaea869029",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/task/subtask.ts": "750b13a1318f62836bfd149f1b9144de5b017fd7a84adc8e2fb2151e63130fbc",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/task/thread.ts": "9f19995d3b0cdbd491d9a8176151f1ceea1ffdd10af837777b9ed4071b99218f",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/task/waitable.ts": "5e1fc092e3d8f1fb4429d6a91d8886b3e474aa9ac6254e7924fd896c4929e1f9",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/tools/translate/main.ts": "d9c8d1d478378e26d1c3ef82892268447cb715cd01809c66053e9ff8fd1bb3e9",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/cli.ts": "d1617e12dc2569f4ee107f8b92488797daf431d14b8a86a1ab10750a28757394",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/clocks.ts": "1ce4e2beb07231c7e284e3feb9d6a5bb25d16627e1104d8d51a9d016d17fa457",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/filesystem.ts": "6dcead5346d78084c3923410e44875e678f3b58db0c2d59513339b428596ec25",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/io.ts": "797828af58cf820250b5d8f174a451fbe525a33f82353eac4c50ff55610d47af",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/mod.ts": "1748985cf851252e1755aafd9ebb9c7ae96003ec41322d9524a952062d2b8570",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/random.ts": "bdd9b3c87c16588a8b176b9e4fbd4f9900a78a3a3a545a5559c51272e1780647"
-  },
   "workspace": {
     "dependencies": [
+      "jsr:@deltic/runtime@0.1.0-pre.ga67ee83",
+      "jsr:@deltic/translator@0.1.0-pre.ga67ee83",
+      "jsr:@deltic/wasi-shims@0.1.0-pre.ga67ee83",
       "npm:node-datachannel@0.32.3",
       "npm:werift@0.22.2"
     ],
diff --git a/experiments/iroh-relay-ws/host/harness.ts b/experiments/iroh-relay-ws/host/harness.ts
index 4f0adb0..1693f3d 100644
--- a/experiments/iroh-relay-ws/host/harness.ts
+++ b/experiments/iroh-relay-ws/host/harness.ts
@@ -14,6 +14,7 @@
 
 import type { ComponentArtifacts } from "@deltic/runtime/embedder";
 import { artifactsFromEnvelope, instantiate } from "@deltic/runtime/embedder";
+import type { Translator } from "@deltic/runtime/shim";
 import { OutputStream, wasiShims } from "@deltic/wasi-shims";
 import { syntheticNetImports } from "./sockets.ts";
 
@@ -69,13 +70,14 @@ export function guestImports(options: GuestOptions): Record<string, unknown> {
  *
  * `artifacts` is anything `instantiate` accepts (embedder-api A3): the
  * translated `ComponentArtifacts`, or `{ componentBytes, translator }`
- * for in-process translation. jspi mode is selected by wasi-shims' own
- * `suspending()` markers (the A5 kernel); no explicit option is needed.
+ * with `@deltic/translator`'s instance for in-process translation. jspi
+ * mode is selected by wasi-shims' own `suspending()` markers (the A5
+ * kernel); no explicit option is needed.
  */
 export async function runGuest(
   artifacts: ComponentArtifacts | {
     componentBytes: Uint8Array;
-    translator: Uint8Array;
+    translator: Uint8Array | Translator;
   },
   imports: Record<string, unknown>,
 ): Promise<void> {
diff --git a/experiments/iroh-relay-ws/host/run.ts b/experiments/iroh-relay-ws/host/run.ts
index ba7f210..fc57ee1 100644
--- a/experiments/iroh-relay-ws/host/run.ts
+++ b/experiments/iroh-relay-ws/host/run.ts
@@ -2,9 +2,10 @@
 // two-endpoint relay echo + WebRTC migration. The guest prints its own
 // results; this driver adds a watchdog and the shim/bridge counters.
 //
-// Runs on stock Deno: `run.sh` fetches the pinned translator shim and
-// exports its path as DELTIC_TRANSLATOR.
+// Runs on stock Deno; the translator is `@deltic/translator`'s packaged
+// asset, loaded through the module graph.
 
+import { defaultTranslator } from "@deltic/translator";
 import { stats } from "./sockets.ts";
 import { bridgeStats } from "./bridge.ts";
 import { webrtcStats } from "./webrtc-bridge.ts";
@@ -23,19 +24,10 @@ const watchdog = setTimeout(() => {
   Deno.exit(1);
 }, WATCHDOG_MS);
 
-const shimPath = Deno.env.get("DELTIC_TRANSLATOR");
-if (!shimPath) {
-  console.error(
-    "[driver] DELTIC_TRANSLATOR is unset — run this through run.sh, which " +
-      "fetches the pinned translator shim (host-deltic/fetch-translator.ts).",
-  );
-  Deno.exit(2);
-}
-
 const t0 = performance.now();
 const artifacts = {
   componentBytes: await Deno.readFile(GUEST_WASM),
-  translator: await Deno.readFile(shimPath),
+  translator: await defaultTranslator(),
 };
 console.log(`[driver] loaded in ${(performance.now() - t0).toFixed(1)}ms`);
 
diff --git a/experiments/iroh-relay-ws/host/translate.ts b/experiments/iroh-relay-ws/host/translate.ts
new file mode 100644
index 0000000..718ce4e
--- /dev/null
+++ b/experiments/iroh-relay-ws/host/translate.ts
@@ -0,0 +1,27 @@
+// Build-time translation (deltic embedder-api A4): component in, envelope
+// out. The translator is `@deltic/translator`'s packaged asset — the same
+// pinned release as the runtime, so the envelope's plan format matches
+// what the pages' `artifactsFromEnvelope` expects by construction.
+//
+// Used by ping-demo's build.sh and the spikes' browser harnesses (their
+// pages fetch component + envelope; no translator ships to a browser).
+//
+//   deno run --allow-read --allow-write --config <this dir>/deno.json \
+//       translate.ts <component.wasm> <out.plan.json>
+
+import { dirname } from "node:path";
+import { defaultTranslator } from "@deltic/translator";
+
+const [input, output] = Deno.args;
+if (!input || !output) {
+  console.error("usage: translate.ts <component.wasm> <out.plan.json>");
+  Deno.exit(2);
+}
+const translator = await defaultTranslator();
+const envelope = translator.translateRaw(await Deno.readFile(input));
+// The output dir may not exist yet: the browser harnesses write the
+// envelope into gitignored dist/ BEFORE `deno bundle` (the other dist/
+// writer) runs, so on a fresh checkout this is the first creator.
+await Deno.mkdir(dirname(output), { recursive: true });
+await Deno.writeTextFile(output, envelope);
+console.error(`translated ${input} -> ${output} (${envelope.length} bytes)`);
diff --git a/experiments/iroh-relay-ws/run.sh b/experiments/iroh-relay-ws/run.sh
index 37c7b0b..3d215e0 100755
--- a/experiments/iroh-relay-ws/run.sh
+++ b/experiments/iroh-relay-ws/run.sh
@@ -1,9 +1,9 @@
 #!/usr/bin/env bash
 # Runs the iroh-relay-ws spike end to end: a stock iroh-relay server (from
 # .deps/iroh, built by the just recipe), then the deltic host on stock
-# Deno driving the wasip2 guest — runtime-linked, no transpile step.
-# Reuses an already-running relay on 127.0.0.1:3340; kills only what it
-# started.
+# Deno driving the wasip2 guest — runtime-linked, no transpile step; the
+# translator ships inside the pinned @deltic/translator package. Reuses an
+# already-running relay on 127.0.0.1:3340; kills only what it started.
 set -euo pipefail
 cd "$(dirname "$0")"
 
@@ -20,13 +20,4 @@ if ! curl -s -m 2 http://127.0.0.1:3340 >/dev/null 2>&1; then
     done
 fi
 
-# The sha256-pinned translator shim, cached under target/deltic/ (the pin
-# and the cache live with host-deltic; the deltic tag in host/deno.json
-# matches it).
-shim=$(deno run --config ../../host-deltic/deno.json --frozen \
-    --allow-read=../.. --allow-write=../../target/deltic \
-    --allow-net=github.com,objects.githubusercontent.com,release-assets.githubusercontent.com \
-    ../../host-deltic/fetch-translator.ts)
-
-DELTIC_TRANSLATOR="$shim" timeout 120 \
-    deno run -A --config host/deno.json --frozen host/run.ts
+timeout 120 deno run -A --config host/deno.json --frozen host/run.ts
diff --git a/experiments/ping-demo/build.sh b/experiments/ping-demo/build.sh
index b89fb02..c9d8977 100755
--- a/experiments/ping-demo/build.sh
+++ b/experiments/ping-demo/build.sh
@@ -17,24 +17,13 @@ GUEST_WASM=guest/target/wasm32-wasip2/release/ping-demo-guest.wasm
 rm -rf "$SITE"
 mkdir -p "$SITE"
 
-# The sha256-pinned translator shim, cached under target/deltic/ (the pin
-# and the cache live with host-deltic; the deltic tag in
-# ../iroh-relay-ws/host/deno.json matches it). build.sh's cwd is
-# experiments/ping-demo, two levels below repo root — see
-# ../iroh-relay-ws/run.sh for the sibling invocation this mirrors.
-shim=$(deno run --config ../../host-deltic/deno.json --frozen \
-    --allow-read=../.. --allow-write=../../target/deltic \
-    --allow-net=github.com,objects.githubusercontent.com,release-assets.githubusercontent.com \
-    ../../host-deltic/fetch-translator.ts)
-
 # Build-time translation (deltic embedder-api A4): produces the
-# component-plus-plan envelope the page fetches at runtime. The shared
-# experiments config maps the CLI's @deltic/runtime/* imports at the
-# repo's pinned tag; the raw URL below must carry the same tag (the pin
-# gate in host-deltic/fetch-translator.ts checks it).
-deno run --config "$SPIKE_HOST/deno.json" --allow-read --allow-write \
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/tools/translate/main.ts" \
-    "$GUEST_WASM" -o "$SITE/ping-demo.plan.json" --shim "$shim"
+# component-plus-plan envelope the page fetches at runtime. The
+# translator is @deltic/translator's packaged asset at the same pinned
+# release as the runtime the bundle carries, so the envelope's plan
+# format matches by construction.
+deno run --config "$SPIKE_HOST/deno.json" --frozen --allow-read --allow-write \
+    "$SPIKE_HOST/translate.ts" "$GUEST_WASM" "$SITE/ping-demo.plan.json"
 
 cp "$GUEST_WASM" "$SITE/ping-demo.component.wasm"
 
diff --git a/host-deltic/README.md b/host-deltic/README.md
index b1ec100..5b8fd3a 100644
--- a/host-deltic/README.md
+++ b/host-deltic/README.md
@@ -53,29 +53,31 @@ guest's and is latent on every host.
 
 ## The pin
 
-deltic is pinned to ONE release tag repo-wide, cross-checked at run time
-by `fetch-translator.ts`:
+deltic arrives as exactly-pinned JSR prereleases:
+`jsr:@deltic/{runtime,wasi-shims,translator}@0.1.0-pre.g<shorthash>`,
+where the short hash names one upstream commit (the same hash as the
+corresponding GitHub `pre-<shorthash>` release). `@deltic/translator`
+ships the translator wasm for that same commit, so the plan-format
+coupling between runtime and translator is self-consistent inside each
+graph by construction — there is no separate asset pin and no fetch
+step.
 
-- `deno.json` — import-map URLs
-  (`raw.githubusercontent.com/lann/deltic/<tag>/…`) for
-  `@deltic/runtime/{embedder,shim}` and `@deltic/wasi-shims`;
-  `deno.lock` carries integrity hashes, enforced with `--frozen`. The
-  sibling host modules map to their `.deps` checkouts (pinned by
-  `scripts/setup.sh`), and the npm mappings (`node-datachannel`,
-  `werift`) serve the webrtc module's bare specifiers, which resolve
-  against this config as the entry import map.
-- `fetch-translator.ts` — `TAG` + `TRANSLATOR_SHA256` for the
-  `deltic-translator-shim.wasm` release asset (cached under
-  `target/deltic/<tag>/`).
-- `experiments/iroh-relay-ws/host/deno.json` — the upstream-iroh spikes'
-  shared config (one import map for all three experiments), plus the
-  translate-CLI URL in `experiments/ping-demo/build.sh`; both must carry
-  the same tag, and `fetch-translator.ts` refuses to run on drift.
+- `deno.json` — the versions in the import map; `deno.lock` carries
+  integrity, enforced with `--frozen`. The sibling host modules map to
+  their `.deps` checkouts (pinned by `scripts/setup.sh`), and the npm
+  mappings (`node-datachannel`, `werift`) serve the webrtc module's
+  bare specifiers, which resolve against this config as the entry
+  import map. `minimumDependencyAge` exempts `jsr:@deltic/*` from
+  Deno's default 24-hour supply-chain gate so same-day prereleases
+  resolve; everything else keeps the default.
+- `experiments/iroh-relay-ws/host/deno.json` — the upstream-iroh
+  spikes' shared config, same versions by repo convention; the
+  `exam-deltic` recipe asserts the two configs agree before running.
 
-To bump: update the tag in all of the above and the sha256 from the
-release's `SHA256SUMS`, delete both `deno.lock` files, re-run
-`just deltic-setup` and `deno install --allow-scripts=npm:node-datachannel`
-in `experiments/iroh-relay-ws/host/` to regenerate them, and commit the
+To bump: update the versions in both configs, delete both `deno.lock`
+files, re-run `just deltic-setup` and
+`deno install --allow-scripts=npm:node-datachannel` in
+`experiments/iroh-relay-ws/host/` to regenerate them, and commit the
 diff.
 
 ## Module identity
diff --git a/host-deltic/deno.json b/host-deltic/deno.json
index 4fc4295..7ce4d0c 100644
--- a/host-deltic/deno.json
+++ b/host-deltic/deno.json
@@ -1,17 +1,21 @@
 {
-  "//": "MODULE-IDENTITY CONSTRAINT: deltic's wasi-shims and the sibling deltic host modules (.deps/{websocket,webrtc,webcrypto}) import @deltic/runtime/embedder by bare specifier internally; this file maps that specifier ONCE for the whole module graph, so `instanceof WitError` holds across every boundary. The npm mappings serve the webrtc module's bare `node-datachannel`/`werift` specifiers, which resolve against THIS config when run-endpoint.ts is the entry module.",
+  "//": "MODULE-IDENTITY CONSTRAINT: deltic's wasi-shims and the sibling deltic host modules (.deps/{websocket,webrtc,webcrypto}) import @deltic/runtime/embedder by bare specifier internally; this file maps that specifier ONCE for the whole module graph, so `instanceof WitError` holds across every boundary. deltic arrives as exactly-pinned JSR prereleases (0.1.0-pre.g<shorthash> names one upstream commit; @deltic/translator ships the translator wasm for the SAME commit, so the plan-format coupling is self-consistent per graph); deno.lock carries integrity, enforced with --frozen. The version matches experiments/iroh-relay-ws/host/deno.json by repo convention (see README.md, 'The pin'; exam-deltic asserts it). minimumDependencyAge keeps Deno's default supply-chain gate for everything else while letting same-day @deltic prereleases resolve. The npm mappings serve the webrtc module's bare specifiers, which resolve against this config as the entry import map.",
   "nodeModulesDir": "auto",
+  "minimumDependencyAge": {
+    "age": "P1D",
+    "exclude": ["jsr:@deltic/*"]
+  },
   "imports": {
-    "@deltic/runtime/embedder": "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/mod.ts",
-    "@deltic/runtime/shim": "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/shim/mod.ts",
-    "@deltic/wasi-shims": "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/mod.ts",
+    "@deltic/runtime/embedder": "jsr:@deltic/runtime@0.1.0-pre.ga67ee83/embedder",
+    "@deltic/translator": "jsr:@deltic/translator@0.1.0-pre.ga67ee83",
+    "@deltic/wasi-shims": "jsr:@deltic/wasi-shims@0.1.0-pre.ga67ee83",
     "@polymorph/webcrypto-deltic": "../.deps/webcrypto/js/deltic/src/mod.ts",
     "node-datachannel": "npm:node-datachannel@0.32.3",
     "node-datachannel/polyfill": "npm:node-datachannel@0.32.3/polyfill",
     "werift": "npm:werift@0.22.2"
   },
   "tasks": {
-    "check": "deno check src fetch-translator.ts",
+    "check": "deno check src",
     "exam": "deno run -A src/run-endpoint.ts"
   }
 }
diff --git a/host-deltic/deno.lock b/host-deltic/deno.lock
index 9084b43..37c8f41 100644
--- a/host-deltic/deno.lock
+++ b/host-deltic/deno.lock
@@ -1,9 +1,30 @@
 {
   "version": "5",
   "specifiers": {
+    "jsr:@deltic/runtime@0.1.0-pre.ga67ee83": "0.1.0-pre.ga67ee83",
+    "jsr:@deltic/runtime@~0.1.0-pre.ga67ee83": "0.1.0-pre.ga67ee83",
+    "jsr:@deltic/translator@0.1.0-pre.ga67ee83": "0.1.0-pre.ga67ee83",
+    "jsr:@deltic/wasi-shims@0.1.0-pre.ga67ee83": "0.1.0-pre.ga67ee83",
     "npm:node-datachannel@0.32.3": "0.32.3",
     "npm:werift@0.22.2": "0.22.2"
   },
+  "jsr": {
+    "@deltic/runtime@0.1.0-pre.ga67ee83": {
+      "integrity": "2a2b0949031747a2340dc186299e654ea9f361ae39ac6bd633019940682db4ed"
+    },
+    "@deltic/translator@0.1.0-pre.ga67ee83": {
+      "integrity": "e4f1bb219e56b62262b0c9665e3f6646aa13883b2cfbb9d6306f69d19974d412",
+      "dependencies": [
+        "jsr:@deltic/runtime@~0.1.0-pre.ga67ee83"
+      ]
+    },
+    "@deltic/wasi-shims@0.1.0-pre.ga67ee83": {
+      "integrity": "a5754e65d50873e675695a51279989e22b3771e31f16a84a09feb15905c574a7",
+      "dependencies": [
+        "jsr:@deltic/runtime@~0.1.0-pre.ga67ee83"
+      ]
+    }
+  },
   "npm": {
     "@fidm/asn1@1.0.4": {
       "integrity": "sha512-esd1jyNvRb2HVaQGq2Gg8Z0kbQPXzV9Tq5Z14KNIov6KfFD6PTaRIO8UpcsYiTNzOqJpmyzWgVTrUwFV3UF4TQ=="
@@ -618,67 +639,13 @@
     "https://raw.githubusercontent.com/lann/deltic/pre-58b2404/runtime/src/task/streams.ts": "83b522a6393ba06fbdb87881bc6761f3fce9c03b85e9eda03d3befe7d2605a60",
     "https://raw.githubusercontent.com/lann/deltic/pre-58b2404/runtime/src/task/subtask.ts": "750b13a1318f62836bfd149f1b9144de5b017fd7a84adc8e2fb2151e63130fbc",
     "https://raw.githubusercontent.com/lann/deltic/pre-58b2404/runtime/src/task/thread.ts": "81fe38b37a1ec130803b478a24e428b19ee4e1ef8c0bae741395cd8d52751580",
-    "https://raw.githubusercontent.com/lann/deltic/pre-58b2404/runtime/src/task/waitable.ts": "5e1fc092e3d8f1fb4429d6a91d8886b3e474aa9ac6254e7924fd896c4929e1f9",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/async_values.ts": "af1279d4e4db5b756268979aeff5b27c1cf6c0f021213655676ade90472f282b",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/context.ts": "b4b60891ef9d9e72b208636f6ba37f0b9b6962d307af6156ad3b5ad59a626902",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/flatten.ts": "6c980fe38d7adce349d5e028b819eb0ffbb92714f958c1d5daae8da3e7ed3889",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/float.ts": "0483e8c1aa8786eee4c6f6357fee6738555e4310650c474aba6cd811a80d7d36",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/handles.ts": "30510750261499f48a812bb8c349a8f88a3bb7239175e6f1d4e6d10c38571e5d",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/layout.ts": "8122141b39f4d8189c13d91fc1b37825ceead86988f879f3fa9351bbef96f8f2",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/lift.ts": "e4475a44a5618114f288025601b535bc04b97e9a37b3be21f51d3be092d419c8",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/load.ts": "c1d8ddb1b3b3c59afe30710a97ad6dd7ae1ecd59aa1d427a5eaf4552d3b1ea01",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/lower.ts": "916ef7476dc583783770f4c42de7a655350531b3763c81a92249cca96f5e4d80",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/memory.ts": "09728360d6413fb30a5a7bff1ba6abec1ac6474ff150d45f093b8ebe5e65cd51",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/mod.ts": "b79cf9e2bab2e837fee76fa61dc18bff66d941e08597f1b76de93811bd6d6008",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/store.ts": "ab3c1475ddce5aef1c7feb77933c19b48ab8bd54634c22a5397c9e734cfd5183",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/strings.ts": "9589dda3857725792ae15ef6888449b48e973b9eb0f3058ed64e10bf4d39b793",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/trap.ts": "307d8b48806eeba30400b3d7db9370cee70a12298851c1c19053dd8ca0013e1c",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/types.ts": "d0392e8cdf2990a76c8a1f9b85795d3b7c19b8eb006c2b159b671d08c39b9535",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/cabi/values.ts": "9e6ddcc4192d05897b2cbea250db3fef0ad9bf6548ba87aff378ee14b7ab7022",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/casing.ts": "1e9083becfc08107c09015ce3db79c304b05c40085a3c899ea1c8ebe25fcd45f",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/errors.ts": "fe1b220c22facf37948d444f97d7c8083da41c8496e6ce23b27c820ca0c2c7d7",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/imports.ts": "98cca003e4a1131c35854c91b458f109d6761a3e8f67c23730f7e9bc28bbad88",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/instantiate.ts": "1c50c17d72bca15738b161b99aa5c406ce87486110b50d09f116aa49a05c215c",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/mod.ts": "3d0be7e5d2fc784725c7ec5ddb1add5120c4f7a2c39be3d4aa3368f27834ed87",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/resources.ts": "d209e5f13545b9c0c095ac4e188b72370d97c9bd394ba7c8793ddd74f436b1ef",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/streams.ts": "f3f3374faf54bc412954692c4df7446d711fe4b6c7712b29e2cea289fcabe5a5",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/values.ts": "ed876f9103f4a4f34e8eb475934091156bee1447f5a029ea300644b8f3ee71eb",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/embedder/version.ts": "b1c589988e5fb88dce3a014846c9253399e286f12afb5fd92509c8d6090ad4bb",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/exec/boundary.ts": "3467d40646a21af853cfdf511fa1acdc9a28122c09e09dcfe124af8ce769b3d2",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/exec/executor.ts": "5d0a5b90886a79ca7c774c8ed612d8aead1acf06433406702ce97ddcf2968be1",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/exec/host_streams.ts": "38e4d6a89169616a18a1369dd6220cfbc11f2ec3d4f85ab10b5933eed76b36cb",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/exec/mod.ts": "a46320977ece14342bcb72c9c9e36d65a1cd09d789591d0909d7d1185264010b",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/async_builtins.ts": "526795358da8908d54a483bb47eebc43e0a1ea59e69ece94d0c6890ad0fa8784",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/context.ts": "be93b23d127ff71d5c372781f89d1c3746c5d32a44e67ebbcd91f2b0f0807e93",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/errors.ts": "9d09fc1818b4dc98b238aa69008a9110d9d305b6a8e806604f3bd48fca1eebcb",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/fact_calls.ts": "c28a9e07699045800105b8f8c3eb086f5550f118b1de852de72d25814ee17068",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/mod.ts": "f9c095e561f5fbb51f70693b21f272f66241f2e8ff2e1a83cd4176bcd0104eb9",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/stream_builtins.ts": "bbc1e1ea0e4616026a46d790a68695aa70589a88b08a6275acdb525f0ab531ec",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/intrinsics/transcode.ts": "e3fcaeb7a60b6cbad999d9389d4bce59e305e6f54e035ba791f909e10d1f82c7",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/jspi/bridge.ts": "28cb5681d63408cca14a9e307065f50188b25aa15ebe5be159ed32dc5f96f002",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/jspi/mechanics.ts": "621eb66135f516cdb488ef6388607772175ec1ef005a70f67e86d1c31f84e4db",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/jspi/mod.ts": "672aae180ad752ce07cfd83b006d24058f3aa4952a75d9a1fd256b7f804cd46a",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/jspi/suspending.ts": "8d24327f6452cf47197e01f2b5224d03fe9270968254fcaa4e8a927ea1b19041",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/jspi/types.ts": "102430fa9386026d0429d42a5365dcc2ed557af536138328325e4cd56f8ddce0",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/plan/format.ts": "90e31bbc7137c2f80c0782e1431afb6f81827aab8d38dba1178b8761f1b3ea0a",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/plan/loader.ts": "107db77e724a7f74f161a5fd20e7110a6e6f182c46f18282eba650bc887dc876",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/shim/mod.ts": "34af2240dfd0be720def487db2db34eaad6ba9178003f20e2193d03a0632779b",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/shim/translator.ts": "9b8c558179acbf7b467db3437be71837db44cecbcc52f45e913b210b3a059dab",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/task/mod.ts": "42d2a2620eba5651016a16c16f47ec0524be525e56f78dec4956c1767b4d2002",
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-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/task/streams.ts": "59e3b9b5ededc2b191b8de0728b105f8459e113e1b869b7e418150aaea869029",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/task/subtask.ts": "750b13a1318f62836bfd149f1b9144de5b017fd7a84adc8e2fb2151e63130fbc",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/task/thread.ts": "9f19995d3b0cdbd491d9a8176151f1ceea1ffdd10af837777b9ed4071b99218f",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/runtime/src/task/waitable.ts": "5e1fc092e3d8f1fb4429d6a91d8886b3e474aa9ac6254e7924fd896c4929e1f9",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/cli.ts": "d1617e12dc2569f4ee107f8b92488797daf431d14b8a86a1ab10750a28757394",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/clocks.ts": "1ce4e2beb07231c7e284e3feb9d6a5bb25d16627e1104d8d51a9d016d17fa457",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/filesystem.ts": "6dcead5346d78084c3923410e44875e678f3b58db0c2d59513339b428596ec25",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/io.ts": "797828af58cf820250b5d8f174a451fbe525a33f82353eac4c50ff55610d47af",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/mod.ts": "1748985cf851252e1755aafd9ebb9c7ae96003ec41322d9524a952062d2b8570",
-    "https://raw.githubusercontent.com/lann/deltic/pre-a67ee83/wasi-shims/src/random.ts": "bdd9b3c87c16588a8b176b9e4fbd4f9900a78a3a3a545a5559c51272e1780647"
+    "https://raw.githubusercontent.com/lann/deltic/pre-58b2404/runtime/src/task/waitable.ts": "5e1fc092e3d8f1fb4429d6a91d8886b3e474aa9ac6254e7924fd896c4929e1f9"
   },
   "workspace": {
     "dependencies": [
+      "jsr:@deltic/runtime@0.1.0-pre.ga67ee83",
+      "jsr:@deltic/translator@0.1.0-pre.ga67ee83",
+      "jsr:@deltic/wasi-shims@0.1.0-pre.ga67ee83",
       "npm:node-datachannel@0.32.3",
       "npm:werift@0.22.2"
     ],
diff --git a/host-deltic/fetch-translator.ts b/host-deltic/fetch-translator.ts
deleted file mode 100644
index db4d241..0000000
--- a/host-deltic/fetch-translator.ts
+++ /dev/null
@@ -1,101 +0,0 @@
-// Fetch (and cache) the deltic translator-shim wasm for the pinned release.
-//
-// deltic is a runtime linker: components are translated by a wasm build of
-// its translator, shipped as a release asset so consumers need no extra
-// Rust build. This script downloads that asset once into target/deltic/,
-// verifies it against the pinned sha256, and prints the cached path on
-// stdout (the `exam-deltic` recipe captures it and exports it as
-// `DELTIC_TRANSLATOR`).
-//
-// THE PIN lives here (TAG + TRANSLATOR_SHA256) and in the sibling
-// deno.json's import-map URLs. `assertPinConsistency` checks the latter
-// against TAG and fails loud on drift.
-//
-// Bumping: update TAG here and in deno.json, update TRANSLATOR_SHA256 from
-// the release's SHA256SUMS, delete deno.lock, and re-run
-// `deno install --allow-scripts=npm:node-datachannel` in this directory to
-// regenerate it (commit the diff).
-
-const TAG = "pre-a67ee83";
-const TRANSLATOR_SHA256 =
-  "2a2c9bbd3dfc009f301bdce9101116b237593bd8e17a06f412b000e2d4d4c220";
-const ASSET = "deltic-translator-shim.wasm";
-
-const HERE = new URL(".", import.meta.url);
-const REPO_ROOT = new URL("../", HERE);
-const CACHE_DIR = new URL(`target/deltic/${TAG}/`, REPO_ROOT);
-const CACHED = new URL(ASSET, CACHE_DIR);
-const RELEASE_URL =
-  `https://github.com/lann/deltic/releases/download/${TAG}/${ASSET}`;
-
-async function sha256Hex(bytes: Uint8Array): Promise<string> {
-  const digest = await crypto.subtle.digest(
-    "SHA-256",
-    bytes as BufferSource,
-  );
-  return Array.from(new Uint8Array(digest))
-    .map((b) => b.toString(16).padStart(2, "0"))
-    .join("");
-}
-
-/** The one-pin-everywhere gate: every raw.githubusercontent deltic URL in
- * the sibling import map — and in the experiments' shared config and the
- * ping demo's build-time translate step, which ride the same release —
- * must reference TAG. */
-async function assertPinConsistency(): Promise<void> {
-  const pinned = [
-    new URL("deno.json", HERE),
-    new URL("../experiments/iroh-relay-ws/host/deno.json", HERE),
-    new URL("../experiments/ping-demo/build.sh", HERE),
-  ];
-  for (const fileUrl of pinned) {
-    const text = await Deno.readTextFile(fileUrl);
-    const urls = text.match(
-      /https:\/\/raw\.githubusercontent\.com\/lann\/deltic[^"\s]+/g,
-    ) ?? [];
-    if (fileUrl.pathname.endsWith("deno.json") && urls.length === 0) {
-      throw new Error(`${fileUrl.pathname}: no pinned deltic URLs found`);
-    }
-    for (const url of urls) {
-      if (!url.includes(`/lann/deltic/${TAG}/`)) {
-        throw new Error(
-          `pin drift: ${fileUrl.pathname} pins ${url}\n` +
-            `but fetch-translator.ts pins ${TAG}`,
-        );
-      }
-    }
-  }
-}
-
-async function main() {
-  await assertPinConsistency();
-
-  try {
-    const cached = await Deno.readFile(CACHED);
-    if (await sha256Hex(cached) === TRANSLATOR_SHA256) {
-      console.log(CACHED.pathname);
-      return;
-    }
-    console.error(`cached ${ASSET} has a stale digest; re-fetching`);
-  } catch {
-    // not cached yet
-  }
-
-  console.error(`fetching ${RELEASE_URL} …`);
-  const resp = await fetch(RELEASE_URL);
-  if (!resp.ok) {
-    throw new Error(`GET ${RELEASE_URL}: ${resp.status} ${resp.statusText}`);
-  }
-  const bytes = new Uint8Array(await resp.arrayBuffer());
-  const got = await sha256Hex(bytes);
-  if (got !== TRANSLATOR_SHA256) {
-    throw new Error(
-      `sha256 mismatch for ${ASSET}@${TAG}:\n  want ${TRANSLATOR_SHA256}\n  got  ${got}`,
-    );
-  }
-  await Deno.mkdir(CACHE_DIR, { recursive: true });
-  await Deno.writeFile(CACHED, bytes);
-  console.log(CACHED.pathname);
-}
-
-await main();
diff --git a/host-deltic/src/harness.ts b/host-deltic/src/harness.ts
index 9c34d27..236e9e7 100644
--- a/host-deltic/src/harness.ts
+++ b/host-deltic/src/harness.ts
@@ -12,7 +12,7 @@
 // graph, so there is exactly one `WitError`/`Stream` module instance and
 // `instanceof` holds across every boundary.
 
-import { Translator } from "@deltic/runtime/shim";
+import { defaultTranslator } from "@deltic/translator";
 import type { ComponentArtifacts } from "@deltic/runtime/embedder";
 import { instantiate, WitError } from "@deltic/runtime/embedder";
 import { wasiShims } from "@deltic/wasi-shims";
@@ -62,20 +62,13 @@ async function exists(path: string): Promise<boolean> {
  * across every `instantiate` in the run: two endpoint *instances* are two
  * separate component instances over the same immutable artifacts.
  *
- * The translator shim arrives through `DELTIC_TRANSLATOR`; the
- * `exam-deltic` justfile recipe fetches the sha256-pinned release asset
- * with `fetch-translator.ts` and exports the path.
+ * The translator is `@deltic/translator`'s packaged asset — the same
+ * pinned release as the runtime, loaded through the module graph
+ * (permission-free on Deno), so there is no fetch step and no
+ * plan-format skew to guard against.
  */
 export async function loadArtifacts(): Promise<ComponentArtifacts> {
   if (cachedArtifacts) return cachedArtifacts;
-  const shim = Deno.env.get("DELTIC_TRANSLATOR");
-  if (!shim) {
-    throw new Error(
-      "DELTIC_TRANSLATOR is unset — fetch the pinned translator shim with " +
-        "host-deltic/fetch-translator.ts and export its path (the " +
-        "`just exam-deltic` recipe does both).",
-    );
-  }
   if (!await exists(ENDPOINT_WASM)) {
     throw new Error(
       `endpoint component not found at ${ENDPOINT_WASM} — build it with ` +
@@ -83,7 +76,7 @@ export async function loadArtifacts(): Promise<ComponentArtifacts> {
     );
   }
   const bytes = await Deno.readFile(ENDPOINT_WASM);
-  const translator = await Translator.create(await Deno.readFile(shim));
+  const translator = await defaultTranslator();
   const { plan, adapters } = translator.translate(bytes);
   cachedArtifacts = { plan, componentBytes: bytes, adapters };
   return cachedArtifacts;
diff --git a/justfile b/justfile
index 558b7ef..707c28e 100644
--- a/justfile
+++ b/justfile
@@ -69,11 +69,19 @@ deltic-setup:
 exam-deltic: build-components relay-build deltic-setup
     #!/usr/bin/env bash
     set -euo pipefail
-    shim=$(deno run --config host-deltic/deno.json --frozen \
-        --allow-read=. --allow-write=target/deltic \
-        --allow-net=github.com,objects.githubusercontent.com,release-assets.githubusercontent.com \
-        host-deltic/fetch-translator.ts)
-    DELTIC_TRANSLATOR="$shim" timeout 600 deno run -A --config host-deltic/deno.json --frozen \
+    # One deltic version repo-wide (host-deltic/README.md "The pin"): the
+    # exam is the natural fail-loud point, replacing the retired
+    # fetch-translator gate. Every jsr:@deltic/* pin in both configs must
+    # name the SAME prerelease — a translator/runtime split is exactly the
+    # plan-format skew (or double-runtime WitError identity break) the
+    # packaged translator exists to rule out.
+    v=$(grep -ho 'jsr:@deltic/[a-z-]*@[^/"]*' host-deltic/deno.json \
+        experiments/iroh-relay-ws/host/deno.json | sed 's/.*@//' | sort -u)
+    if [ "$(printf '%s\n' "$v" | wc -l)" != 1 ]; then
+        echo "deltic pin drift across deno.jsons: $v" >&2
+        exit 1
+    fi
+    timeout 600 deno run -A --config host-deltic/deno.json --frozen \
         host-deltic/src/run-endpoint.ts
 
 # The measured-claims gate: per-wire latency/throughput medians,