diff --git a/aesel/package.json b/aesel/package.json
index 261adfc699..ac9630ba46 100644
--- a/aesel/package.json
+++ b/aesel/package.json
@@ -1,6 +1,6 @@
 {
   "name": "aesel",
-  "version": "0.8.5",
+  "version": "0.8.6",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/aesel/phone/shim/absent.mjs b/aesel/phone/shim/absent.mjs
index 49ca7cfa0b..74f2f25e9a 100644
--- a/aesel/phone/shim/absent.mjs
+++ b/aesel/phone/shim/absent.mjs
@@ -22,3 +22,18 @@ export const networkInterfaces = () => ({});
 export const platform = () => "webview";
 
 export default { spawn, execFile, execFileSync, createServer, homedir, tmpdir, platform };
+
+// Workspace tools and the MCP client (pro sessions only; the phone never runs
+// them) import these at module scope.
+export const readFile = async () => absent("readFile")();
+export const writeFile = async () => absent("writeFile")();
+export const mkdir = async () => absent("mkdir")();
+export const rename = async () => absent("rename")();
+export const rm = async () => absent("rm")();
+export const stat = async () => absent("stat")();
+export const readdir = async () => absent("readdir")();
+export const copyFile = async () => absent("copyFile")();
+export const access = async () => absent("access")();
+export const unlink = async () => absent("unlink")();
+export const open = async () => absent("open")();
+export const appendFile = async () => absent("appendFile")();
diff --git a/aesel/web/build.mjs b/aesel/web/build.mjs
index 8a5c986c09..760e9118e2 100644
--- a/aesel/web/build.mjs
+++ b/aesel/web/build.mjs
@@ -6,7 +6,7 @@ import { fileURLToPath } from 'node:url';
 const root=resolve(dirname(fileURLToPath(import.meta.url)),'../..');
 const out=resolve(root,process.argv[2] || 'system/public/aesel/try');
 await mkdir(out,{recursive:true});
-const shims={'node:events':'events','node:fs':'fs','node:path':'path','node:url':'url','node:crypto':'crypto','node:os':'absent','node:http':'absent','node:child_process':'absent','node:readline':'absent'};
+const shims={'node:fs/promises':'absent','node:events':'events','node:fs':'fs','node:path':'path','node:url':'url','node:crypto':'crypto','node:os':'absent','node:http':'absent','node:child_process':'absent','node:readline':'absent'};
 const guides={};
 for(const name of ['pieces.md','screen.md','hand.md','kidlisp.md','api.json']) guides[`/easel/context/${name}`]=await readFile(resolve(root,'aesel/context',name),'utf8');
 const result=await build({
@@ -19,7 +19,8 @@ const result=await build({
       const name=shims[args.path];if(!name) throw new Error(`Unmapped browser dependency: ${args.path}`);
       return {path:resolve(root,`aesel/phone/shim/${name}.mjs`)};
     });
-    b.onResolve({filter:/^\/easel\//},args=>({path:resolve(root,args.path.slice(1))}));
+    // /easel/ is the phone's URL prefix; the tree on disk is aesel/.
+    b.onResolve({filter:/^\/easel\//},args=>({path:resolve(root,'aesel',args.path.slice('/easel/'.length))}));
     b.onResolve({filter:/^\.\/(revisions|preview-frame|jev-advisor)\.mjs$/},args=>({path:resolve(root,'aesel/phone/shim',args.path)}));
   }}],
 });