diff --git a/bench_util/benches/op_baseline.rs b/bench_util/benches/op_baseline.rs
index 89fb3d2f3a..4b3bc0203c 100644
--- a/bench_util/benches/op_baseline.rs
+++ b/bench_util/benches/op_baseline.rs
@@ -9,7 +9,14 @@ use deno_bench_util::bencher::Bencher;
 use deno_core::op;
 use deno_core::Extension;
 
-deno_core::extension!(bench_setup, ops = [op_pi_json, op_pi_async, op_nop]);
+deno_core::extension!(
+  bench_setup,
+  ops = [
+    // op_pi_json,
+    op_pi_async,
+    op_nop
+  ]
+);
 
 fn setup() -> Vec<Extension> {
   vec![bench_setup::init_ops()]
@@ -18,10 +25,12 @@ fn setup() -> Vec<Extension> {
 #[op]
 fn op_nop() {}
 
-#[op]
-fn op_pi_json() -> i64 {
-  314159
-}
+// TODO(bartlomieju): reenable, currently this op generates a fast function,
+// which is wrong, because i64 is not a compatible type for fast call.
+// #[op]
+// fn op_pi_json() -> i64 {
+//   314159
+// }
 
 // this is a function since async closures aren't stable
 #[op]
@@ -29,9 +38,9 @@ async fn op_pi_async() -> i64 {
   314159
 }
 
-fn bench_op_pi_json(b: &mut Bencher) {
-  bench_js_sync(b, r#"Deno.core.ops.op_pi_json();"#, setup);
-}
+// fn bench_op_pi_json(b: &mut Bencher) {
+//   bench_js_sync(b, r#"Deno.core.ops.op_pi_json();"#, setup);
+// }
 
 fn bench_op_nop(b: &mut Bencher) {
   bench_js_sync(b, r#"Deno.core.ops.op_nop();"#, setup);
@@ -41,6 +50,11 @@ fn bench_op_async(b: &mut Bencher) {
   bench_js_async(b, r#"Deno.core.opAsync("op_pi_async");"#, setup);
 }
 
-benchmark_group!(benches, bench_op_pi_json, bench_op_nop, bench_op_async,);
+benchmark_group!(
+  benches,
+  // bench_op_pi_json,
+  bench_op_nop,
+  bench_op_async,
+);
 
 bench_or_profile!(benches);
diff --git a/cli/build.rs b/cli/build.rs
index c2269aca3d..173c8b85d4 100644
--- a/cli/build.rs
+++ b/cli/build.rs
@@ -5,7 +5,6 @@ use std::path::PathBuf;
 
 use deno_core::snapshot_util::*;
 use deno_core::Extension;
-use deno_core::ExtensionBuilder;
 use deno_core::ExtensionFileSource;
 use deno_core::ExtensionFileSourceCode;
 use deno_runtime::deno_cache::SqliteBackedCache;
@@ -318,7 +317,7 @@ deno_core::extension!(
     dir "js",
     "40_testing.js"
   ],
-  customizer = |ext: &mut ExtensionBuilder| {
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
     ext.esm(vec![ExtensionFileSource {
       specifier: "ext:cli/runtime/js/99_main.js",
       code: ExtensionFileSourceCode::LoadedFromFsDuringSnapshot(
diff --git a/cli/lsp/tsc.rs b/cli/lsp/tsc.rs
index 91eb6e24b5..c8d8103b9d 100644
--- a/cli/lsp/tsc.rs
+++ b/cli/lsp/tsc.rs
@@ -2843,6 +2843,9 @@ deno_core::extension!(deno_tsc,
       options.performance,
     ));
   },
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 /// Instruct a language server runtime to start the language server and provide
diff --git a/cli/ops/bench.rs b/cli/ops/bench.rs
index 6fa9edee88..86498cd7cd 100644
--- a/cli/ops/bench.rs
+++ b/cli/ops/bench.rs
@@ -38,6 +38,9 @@ deno_core::extension!(deno_bench,
     state.put(options.sender);
     state.put(options.filter);
   },
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 #[derive(Clone)]
diff --git a/cli/ops/mod.rs b/cli/ops/mod.rs
index c12409514d..4d5595e098 100644
--- a/cli/ops/mod.rs
+++ b/cli/ops/mod.rs
@@ -21,6 +21,9 @@ deno_core::extension!(deno_cli,
   state = |state, options| {
     state.put(options.ps);
   },
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 #[op]
diff --git a/cli/ops/testing.rs b/cli/ops/testing.rs
index 0849f1c7a0..8b5c95feae 100644
--- a/cli/ops/testing.rs
+++ b/cli/ops/testing.rs
@@ -44,6 +44,9 @@ deno_core::extension!(deno_test,
     state.put(options.fail_fast_tracker);
     state.put(options.filter);
   },
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 #[derive(Clone)]
diff --git a/cli/tsc/mod.rs b/cli/tsc/mod.rs
index 45589780ff..48ab131fee 100644
--- a/cli/tsc/mod.rs
+++ b/cli/tsc/mod.rs
@@ -114,7 +114,13 @@ pub fn get_types_declaration_file_text(unstable: bool) -> String {
 }
 
 fn get_asset_texts_from_new_runtime() -> Result<Vec<AssetText>, AnyError> {
-  deno_core::extension!(deno_cli_tsc, ops_fn = deno_ops,);
+  deno_core::extension!(
+    deno_cli_tsc,
+    ops_fn = deno_ops,
+    customizer = |ext: &mut deno_core::ExtensionBuilder| {
+      ext.force_op_registration();
+    },
+  );
 
   // the assets are stored within the typescript isolate, so take them out of there
   let mut runtime = JsRuntime::new(RuntimeOptions {
@@ -846,6 +852,9 @@ pub fn exec(request: Request) -> Result<Response, AnyError> {
           .unwrap(),
       ));
     },
+    customizer = |ext: &mut deno_core::ExtensionBuilder| {
+      ext.force_op_registration();
+    },
   );
 
   let startup_source = "globalThis.startup({ legacyFlag: false })";
diff --git a/core/bindings.rs b/core/bindings.rs
index 7970f9aaba..52db40f0da 100644
--- a/core/bindings.rs
+++ b/core/bindings.rs
@@ -19,24 +19,22 @@ use crate::snapshot_util::SnapshotOptions;
 use crate::JsRealm;
 use crate::JsRuntime;
 
-pub(crate) fn external_references(
-  ops: &[OpCtx],
-  snapshot_options: SnapshotOptions,
-) -> v8::ExternalReferences {
-  let mut references = vec![
-    v8::ExternalReference {
-      function: call_console.map_fn_to(),
-    },
-    v8::ExternalReference {
-      function: import_meta_resolve.map_fn_to(),
-    },
-    v8::ExternalReference {
-      function: catch_dynamic_import_promise_error.map_fn_to(),
-    },
-    v8::ExternalReference {
-      function: empty_fn.map_fn_to(),
-    },
-  ];
+pub(crate) fn external_references(ops: &[OpCtx]) -> v8::ExternalReferences {
+  // Overallocate a bit, it's better than having to resize the vector.
+  let mut references = Vec::with_capacity(4 + ops.len() * 4);
+
+  references.push(v8::ExternalReference {
+    function: call_console.map_fn_to(),
+  });
+  references.push(v8::ExternalReference {
+    function: import_meta_resolve.map_fn_to(),
+  });
+  references.push(v8::ExternalReference {
+    function: catch_dynamic_import_promise_error.map_fn_to(),
+  });
+  references.push(v8::ExternalReference {
+    function: empty_fn.map_fn_to(),
+  });
 
   for ctx in ops {
     let ctx_ptr = ctx as *const OpCtx as _;
@@ -44,12 +42,13 @@ pub(crate) fn external_references(
     references.push(v8::ExternalReference {
       function: ctx.decl.v8_fn_ptr,
     });
-    if !snapshot_options.will_snapshot() {
-      if let Some(fast_fn) = &ctx.decl.fast_fn {
-        references.push(v8::ExternalReference {
-          pointer: fast_fn.function() as _,
-        });
-      }
+    if let Some(fast_fn) = &ctx.decl.fast_fn {
+      references.push(v8::ExternalReference {
+        pointer: fast_fn.function() as _,
+      });
+      references.push(v8::ExternalReference {
+        pointer: ctx.fast_fn_c_info.unwrap().as_ptr() as _,
+      });
     }
   }
 
@@ -114,9 +113,9 @@ pub(crate) fn initialize_context<'s>(
     v8::String::new_external_onebyte_static(scope, b"core").unwrap();
   let ops_str = v8::String::new_external_onebyte_static(scope, b"ops").unwrap();
 
-  // Snapshot already registered `Deno.core.ops` but
-  // extensions may provide ops that aren't part of the snapshot.
-  if snapshot_options.loaded() {
+  let ops_obj = if snapshot_options.loaded() {
+    // Snapshot already registered `Deno.core.ops` but
+    // extensions may provide ops that aren't part of the snapshot.
     // Grab the Deno.core.ops object & init it
     let deno_obj: v8::Local<v8::Object> = global
       .get(scope, deno_str.into())
@@ -133,34 +132,58 @@ pub(crate) fn initialize_context<'s>(
       .expect("Deno.core.ops to exist")
       .try_into()
       .unwrap();
-    for ctx in op_ctxs {
-      add_op_to_deno_core_ops(scope, ops_obj, ctx, snapshot_options);
+    ops_obj
+  } else {
+    // globalThis.Deno = { core: { } };
+    let deno_obj = v8::Object::new(scope);
+    global.set(scope, deno_str.into(), deno_obj.into());
+
+    let core_obj = v8::Object::new(scope);
+    deno_obj.set(scope, core_str.into(), core_obj.into());
+
+    // Bind functions to Deno.core.*
+    set_func(scope, core_obj, "callConsole", call_console);
+
+    // Bind v8 console object to Deno.core.console
+    let extra_binding_obj = context.get_extras_binding_object(scope);
+    let console_str =
+      v8::String::new_external_onebyte_static(scope, b"console").unwrap();
+    let console_obj = extra_binding_obj.get(scope, console_str.into()).unwrap();
+    core_obj.set(scope, console_str.into(), console_obj);
+
+    // Bind functions to Deno.core.ops.*
+    let ops_obj = v8::Object::new(scope);
+    core_obj.set(scope, ops_str.into(), ops_obj.into());
+    ops_obj
+  };
+
+  if matches!(snapshot_options, SnapshotOptions::Load) {
+    // Only register ops that have `force_registration` flag set to true,
+    // the remaining ones should already be in the snapshot.
+    for op_ctx in op_ctxs
+      .iter()
+      .filter(|op_ctx| op_ctx.decl.force_registration)
+    {
+      add_op_to_deno_core_ops(scope, ops_obj, op_ctx);
+    }
+  } else if matches!(snapshot_options, SnapshotOptions::CreateFromExisting) {
+    // Register all ops, probing for which ones are already registered.
+    for op_ctx in op_ctxs {
+      let key = v8::String::new_external_onebyte_static(
+        scope,
+        op_ctx.decl.name.as_bytes(),
+      )
+      .unwrap();
+      if ops_obj.get(scope, key.into()).is_some() {
+        continue;
+      }
+      add_op_to_deno_core_ops(scope, ops_obj, op_ctx);
+    }
+  } else {
+    // In other cases register all ops unconditionally.
+    for op_ctx in op_ctxs {
+      add_op_to_deno_core_ops(scope, ops_obj, op_ctx);
     }
-    return context;
-  }
-
-  // global.Deno = { core: { } };
-  let deno_obj = v8::Object::new(scope);
-  global.set(scope, deno_str.into(), deno_obj.into());
-
-  let core_obj = v8::Object::new(scope);
-  deno_obj.set(scope, core_str.into(), core_obj.into());
-
-  // Bind functions to Deno.core.*
-  set_func(scope, core_obj, "callConsole", call_console);
-
-  // Bind v8 console object to Deno.core.console
-  let extra_binding_obj = context.get_extras_binding_object(scope);
-  let console_str =
-    v8::String::new_external_onebyte_static(scope, b"console").unwrap();
-  let console_obj = extra_binding_obj.get(scope, console_str.into()).unwrap();
-  core_obj.set(scope, console_str.into(), console_obj);
-
-  // Bind functions to Deno.core.ops.*
-  let ops_obj = v8::Object::new(scope);
-  core_obj.set(scope, ops_str.into(), ops_obj.into());
-  for ctx in op_ctxs {
-    add_op_to_deno_core_ops(scope, ops_obj, ctx, snapshot_options);
   }
 
   context
@@ -183,7 +206,6 @@ fn add_op_to_deno_core_ops(
   scope: &mut v8::HandleScope<'_>,
   obj: v8::Local<v8::Object>,
   op_ctx: &OpCtx,
-  snapshot_options: SnapshotOptions,
 ) {
   let op_ctx_ptr = op_ctx as *const OpCtx as *const c_void;
   let key =
@@ -193,24 +215,14 @@ fn add_op_to_deno_core_ops(
   let builder = v8::FunctionTemplate::builder_raw(op_ctx.decl.v8_fn_ptr)
     .data(external.into());
 
-  // TODO(bartlomieju): this should be cleaned up once we update Fast Calls API
-  // If this is a fast op, we don't want it to be in the snapshot.
-  // Only initialize once snapshot is loaded.
-  let maybe_fast_fn =
-    if op_ctx.decl.fast_fn.is_some() && snapshot_options.loaded() {
-      &op_ctx.decl.fast_fn
-    } else {
-      &None
-    };
-
-  let templ = if let Some(fast_function) = maybe_fast_fn {
-    // Don't initialize fast ops when snapshotting, the external references count mismatch.
-    if !snapshot_options.will_snapshot() {
-      // TODO(@littledivy): Support fast api overloads in ops.
-      builder.build_fast(scope, &**fast_function, None, None, None)
-    } else {
-      builder.build(scope)
-    }
+  let templ = if let Some(fast_function) = &op_ctx.decl.fast_fn {
+    builder.build_fast(
+      scope,
+      &**fast_function,
+      Some(op_ctx.fast_fn_c_info.unwrap().as_ptr()),
+      None,
+      None,
+    )
   } else {
     builder.build(scope)
   };
diff --git a/core/extensions.rs b/core/extensions.rs
index 728ebd5128..2a578429b9 100644
--- a/core/extensions.rs
+++ b/core/extensions.rs
@@ -53,6 +53,7 @@ pub struct OpDecl {
   pub is_unstable: bool,
   pub is_v8: bool,
   pub fast_fn: Option<Box<dyn FastFunction>>,
+  pub force_registration: bool,
 }
 
 impl OpDecl {
@@ -240,6 +241,7 @@ macro_rules! extension {
 
       #[inline(always)]
       #[allow(unused_variables)]
+      #[allow(clippy::redundant_closure_call)]
       fn with_customizer(ext: &mut $crate::ExtensionBuilder) {
         $( ($customizer_fn)(ext); )?
       }
@@ -325,6 +327,7 @@ pub struct Extension {
   enabled: bool,
   name: &'static str,
   deps: Option<&'static [&'static str]>,
+  force_op_registration: bool,
 }
 
 // Note: this used to be a trait, but we "downgraded" it to a single concrete type
@@ -394,6 +397,7 @@ impl Extension {
     let mut ops = self.ops.take()?;
     for op in ops.iter_mut() {
       op.enabled = self.enabled && op.enabled;
+      op.force_registration = self.force_op_registration;
     }
     Some(ops)
   }
@@ -447,6 +451,7 @@ pub struct ExtensionBuilder {
   event_loop_middleware: Option<Box<OpEventLoopFn>>,
   name: &'static str,
   deps: &'static [&'static str],
+  force_op_registration: bool,
 }
 
 impl ExtensionBuilder {
@@ -494,6 +499,15 @@ impl ExtensionBuilder {
     self
   }
 
+  /// Mark that ops from this extension should be added to `Deno.core.ops`
+  /// unconditionally. This is useful is some ops are not available
+  /// during snapshotting, as ops are not registered by default when a
+  /// `JsRuntime` is created with an existing snapshot.
+  pub fn force_op_registration(&mut self) -> &mut Self {
+    self.force_op_registration = true;
+    self
+  }
+
   /// Consume the [`ExtensionBuilder`] and return an [`Extension`].
   pub fn take(self) -> Extension {
     let js_files = Some(self.js);
@@ -511,6 +525,7 @@ impl ExtensionBuilder {
       initialized: false,
       enabled: true,
       name: self.name,
+      force_op_registration: self.force_op_registration,
       deps,
     }
   }
@@ -532,6 +547,7 @@ impl ExtensionBuilder {
       enabled: true,
       name: self.name,
       deps,
+      force_op_registration: self.force_op_registration,
     }
   }
 }
diff --git a/core/ops.rs b/core/ops.rs
index ca465c821e..3a276082f9 100644
--- a/core/ops.rs
+++ b/core/ops.rs
@@ -19,10 +19,13 @@ use std::cell::RefCell;
 use std::ops::Deref;
 use std::ops::DerefMut;
 use std::pin::Pin;
+use std::ptr::NonNull;
 use std::rc::Rc;
 use std::rc::Weak;
 use std::task::Context;
 use std::task::Poll;
+use v8::fast_api::CFunctionInfo;
+use v8::fast_api::CTypeInfo;
 
 /// Wrapper around a Future, which causes that Future to be polled immediately.
 ///
@@ -155,11 +158,45 @@ pub struct OpCtx {
   pub id: OpId,
   pub state: Rc<RefCell<OpState>>,
   pub decl: Rc<OpDecl>,
+  pub fast_fn_c_info: Option<NonNull<v8::fast_api::CFunctionInfo>>,
   pub runtime_state: Weak<RefCell<JsRuntimeState>>,
   // Index of the current realm into `JsRuntimeState::known_realms`.
   pub realm_idx: RealmIdx,
 }
 
+impl OpCtx {
+  pub fn new(
+    id: OpId,
+    realm_idx: RealmIdx,
+    decl: Rc<OpDecl>,
+    state: Rc<RefCell<OpState>>,
+    runtime_state: Weak<RefCell<JsRuntimeState>>,
+  ) -> Self {
+    let mut fast_fn_c_info = None;
+
+    if let Some(fast_fn) = &decl.fast_fn {
+      let args = CTypeInfo::new_from_slice(fast_fn.args());
+      let ret = CTypeInfo::new(fast_fn.return_type());
+
+      // SAFETY: all arguments are coming from the trait and they have
+      // static lifetime
+      let c_fn = unsafe {
+        CFunctionInfo::new(args.as_ptr(), fast_fn.args().len(), ret.as_ptr())
+      };
+      fast_fn_c_info = Some(c_fn);
+    }
+
+    OpCtx {
+      id,
+      state,
+      runtime_state,
+      decl,
+      realm_idx,
+      fast_fn_c_info,
+    }
+  }
+}
+
 /// Maintains the resources and ops inside a JS runtime.
 pub struct OpState {
   pub resource_table: ResourceTable,
diff --git a/core/runtime.rs b/core/runtime.rs
index a08e651349..f1aa63f23c 100644
--- a/core/runtime.rs
+++ b/core/runtime.rs
@@ -319,6 +319,7 @@ impl JsRuntime {
     DENO_INIT.call_once(move || v8_init(v8_platform, options.will_snapshot));
 
     // Add builtins extension
+    // TODO(bartlomieju): remove this in favor of `SnapshotOptions`.
     let has_startup_snapshot = options.startup_snapshot.is_some();
     if !has_startup_snapshot {
       options
@@ -375,12 +376,8 @@ impl JsRuntime {
     let op_ctxs = ops
       .into_iter()
       .enumerate()
-      .map(|(id, decl)| OpCtx {
-        id,
-        state: op_state.clone(),
-        runtime_state: weak.clone(),
-        decl: Rc::new(decl),
-        realm_idx: 0,
+      .map(|(id, decl)| {
+        OpCtx::new(id, 0, Rc::new(decl), op_state.clone(), weak.clone())
       })
       .collect::<Vec<_>>()
       .into_boxed_slice();
@@ -389,7 +386,7 @@ impl JsRuntime {
       options.startup_snapshot.is_some(),
       options.will_snapshot,
     );
-    let refs = bindings::external_references(&op_ctxs, snapshot_options);
+    let refs = bindings::external_references(&op_ctxs);
     // V8 takes ownership of external_references.
     let refs: &'static v8::ExternalReferences = Box::leak(Box::new(refs));
     let global_context;
@@ -398,7 +395,7 @@ impl JsRuntime {
     let (mut isolate, snapshot_options) = if snapshot_options.will_snapshot() {
       let snapshot_creator =
         snapshot_util::create_snapshot_creator(refs, options.startup_snapshot);
-
+      eprintln!("create snapshot {:#?}", snapshot_options);
       let mut isolate = JsRuntime::setup_isolate(snapshot_creator);
       {
         let scope = &mut v8::HandleScope::new(&mut isolate);
@@ -460,6 +457,7 @@ impl JsRuntime {
       isolate_ptr.write(isolate);
       isolate_ptr.read()
     };
+
     global_context.open(&mut isolate).set_slot(
       &mut isolate,
       Rc::new(RefCell::new(ContextState {
@@ -620,12 +618,14 @@ impl JsRuntime {
         .borrow()
         .op_ctxs
         .iter()
-        .map(|op_ctx| OpCtx {
-          id: op_ctx.id,
-          state: op_ctx.state.clone(),
-          decl: op_ctx.decl.clone(),
-          runtime_state: op_ctx.runtime_state.clone(),
-          realm_idx,
+        .map(|op_ctx| {
+          OpCtx::new(
+            op_ctx.id,
+            realm_idx,
+            op_ctx.decl.clone(),
+            op_ctx.state.clone(),
+            op_ctx.runtime_state.clone(),
+          )
         })
         .collect();
 
@@ -927,18 +927,6 @@ impl JsRuntime {
   ///
   /// `Error` can usually be downcast to `JsError`.
   pub fn snapshot(mut self) -> v8::StartupData {
-    // Nuke Deno.core.ops.* to avoid ExternalReference snapshotting issues
-    // TODO(@AaronO): make ops stable across snapshots
-    {
-      let scope = &mut self.handle_scope();
-      let o = Self::eval::<v8::Object>(scope, "Deno.core.ops").unwrap();
-      let names = o.get_own_property_names(scope, Default::default()).unwrap();
-      for i in 0..names.length() {
-        let key = names.get_index(scope, i).unwrap();
-        o.delete(scope, key);
-      }
-    }
-
     self.state.borrow_mut().inspector.take();
 
     // Serialize the module map and store its data in the snapshot.
@@ -3556,10 +3544,18 @@ pub mod tests {
       }
     }
 
+    #[op]
+    fn op_test() -> Result<String, Error> {
+      Ok(String::from("test"))
+    }
+
     let loader = Rc::new(ModsLoader::default());
     let mut runtime = JsRuntime::new(RuntimeOptions {
       module_loader: Some(loader.clone()),
       will_snapshot: true,
+      extensions: vec![Extension::builder("text_ext")
+        .ops(vec![op_test::decl()])
+        .build()],
       ..Default::default()
     });
 
@@ -3594,6 +3590,9 @@ pub mod tests {
       module_loader: Some(loader.clone()),
       will_snapshot: true,
       startup_snapshot: Some(Snapshot::JustCreated(snapshot)),
+      extensions: vec![Extension::builder("text_ext")
+        .ops(vec![op_test::decl()])
+        .build()],
       ..Default::default()
     });
 
@@ -3609,6 +3608,9 @@ pub mod tests {
     let mut runtime3 = JsRuntime::new(RuntimeOptions {
       module_loader: Some(loader),
       startup_snapshot: Some(Snapshot::JustCreated(snapshot2)),
+      extensions: vec![Extension::builder("text_ext")
+        .ops(vec![op_test::decl()])
+        .build()],
       ..Default::default()
     });
 
@@ -3616,7 +3618,7 @@ pub mod tests {
 
     let source_code = r#"(async () => {
       const mod = await import("file:///400.js");
-      return mod.f400();
+      return mod.f400() + " " + Deno.core.ops.op_test();
     })();"#
       .to_string();
     let val = runtime3.execute_script(".", &source_code).unwrap();
@@ -3625,7 +3627,7 @@ pub mod tests {
       let scope = &mut runtime3.handle_scope();
       let value = v8::Local::new(scope, val);
       let str_ = value.to_string(scope).unwrap().to_rust_string_lossy(scope);
-      assert_eq!(str_, "hello world");
+      assert_eq!(str_, "hello world test");
     }
   }
 
@@ -4600,7 +4602,13 @@ Deno.core.opAsync("op_async_serialize_object_with_numbers_as_keys", {
       Ok(String::from("Test"))
     }
 
-    deno_core::extension!(test_ext, ops = [op_test]);
+    deno_core::extension!(
+      test_ext,
+      ops = [op_test],
+      customizer = |ext: &mut deno_core::ExtensionBuilder| {
+        ext.force_op_registration();
+      },
+    );
     let mut runtime = JsRuntime::new(RuntimeOptions {
       startup_snapshot: Some(Snapshot::Boxed(snapshot)),
       extensions: vec![test_ext::init_ops()],
diff --git a/core/snapshot_util.rs b/core/snapshot_util.rs
index 74bd7d8a33..20019f5cc7 100644
--- a/core/snapshot_util.rs
+++ b/core/snapshot_util.rs
@@ -121,7 +121,7 @@ fn data_error_to_panic(err: v8::DataError) -> ! {
   }
 }
 
-#[derive(Copy, Clone, PartialEq, Eq)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
 pub(crate) enum SnapshotOptions {
   Load,
   CreateFromExisting,
diff --git a/ext/node/polyfills/internal/readline/utils.mjs b/ext/node/polyfills/internal/readline/utils.mjs
index 6224f112b3..0727950dfc 100644
--- a/ext/node/polyfills/internal/readline/utils.mjs
+++ b/ext/node/polyfills/internal/readline/utils.mjs
@@ -38,10 +38,10 @@ export function CSI(strings, ...args) {
 }
 
 CSI.kEscape = kEscape;
-CSI.kClearToLineBeginning = CSI`1K`;
-CSI.kClearToLineEnd = CSI`0K`;
-CSI.kClearLine = CSI`2K`;
-CSI.kClearScreenDown = CSI`0J`;
+CSI.kClearToLineBeginning = `${kEscape}[1K`;
+CSI.kClearToLineEnd = `${kEscape}[0K`;
+CSI.kClearLine = `${kEscape}[2K`;
+CSI.kClearScreenDown = `${kEscape}[0J`;
 
 // TODO(BridgeAR): Treat combined characters as single character, i.e,
 // 'a\u0301' and '\u0301a' (both have the same visual output).
diff --git a/ops/lib.rs b/ops/lib.rs
index f7c69ec8a4..d5f24c0d06 100644
--- a/ops/lib.rs
+++ b/ops/lib.rs
@@ -145,6 +145,7 @@ impl Op {
               is_async: #is_async,
               is_unstable: #is_unstable,
               is_v8: #is_v8,
+              force_registration: false,
             }
           }
 
@@ -201,6 +202,7 @@ impl Op {
             is_async: #is_async,
             is_unstable: #is_unstable,
             is_v8: #is_v8,
+            force_registration: false,
           }
         }
 
diff --git a/ops/optimizer_tests/async_nop.out b/ops/optimizer_tests/async_nop.out
index d1e9534063..abb195bd5e 100644
--- a/ops/optimizer_tests/async_nop.out
+++ b/ops/optimizer_tests/async_nop.out
@@ -26,6 +26,7 @@ impl op_void_async {
             is_async: true,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/async_result.out b/ops/optimizer_tests/async_result.out
index 1d45b11f17..785031cab9 100644
--- a/ops/optimizer_tests/async_result.out
+++ b/ops/optimizer_tests/async_result.out
@@ -26,6 +26,7 @@ impl op_async_result {
             is_async: true,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/callback_options.out b/ops/optimizer_tests/callback_options.out
index 3a18be60f7..201ec90ced 100644
--- a/ops/optimizer_tests/callback_options.out
+++ b/ops/optimizer_tests/callback_options.out
@@ -26,6 +26,7 @@ impl op_fallback {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/cow_str.out b/ops/optimizer_tests/cow_str.out
index e676057630..b25c0dcb86 100644
--- a/ops/optimizer_tests/cow_str.out
+++ b/ops/optimizer_tests/cow_str.out
@@ -26,6 +26,7 @@ impl op_cow_str {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/f64_slice.out b/ops/optimizer_tests/f64_slice.out
index dd982b1937..46108e4e8e 100644
--- a/ops/optimizer_tests/f64_slice.out
+++ b/ops/optimizer_tests/f64_slice.out
@@ -26,6 +26,7 @@ impl op_f64_buf {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/incompatible_1.out b/ops/optimizer_tests/incompatible_1.out
index cedfb1a8f9..4bd26ecccd 100644
--- a/ops/optimizer_tests/incompatible_1.out
+++ b/ops/optimizer_tests/incompatible_1.out
@@ -22,6 +22,7 @@ impl op_sync_serialize_object_with_numbers_as_keys {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/issue16934.out b/ops/optimizer_tests/issue16934.out
index 2b8df30d29..5b0b208f32 100644
--- a/ops/optimizer_tests/issue16934.out
+++ b/ops/optimizer_tests/issue16934.out
@@ -22,6 +22,7 @@ impl send_stdin {
             is_async: true,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/issue16934_fast.out b/ops/optimizer_tests/issue16934_fast.out
index cf1e416800..704329e4aa 100644
--- a/ops/optimizer_tests/issue16934_fast.out
+++ b/ops/optimizer_tests/issue16934_fast.out
@@ -22,6 +22,7 @@ impl send_stdin {
             is_async: true,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/op_blob_revoke_object_url.out b/ops/optimizer_tests/op_blob_revoke_object_url.out
index 8c5a569a50..83d3e1d04f 100644
--- a/ops/optimizer_tests/op_blob_revoke_object_url.out
+++ b/ops/optimizer_tests/op_blob_revoke_object_url.out
@@ -22,6 +22,7 @@ impl op_blob_revoke_object_url {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/op_ffi_ptr_value.out b/ops/optimizer_tests/op_ffi_ptr_value.out
index df38b72278..4a2cae2171 100644
--- a/ops/optimizer_tests/op_ffi_ptr_value.out
+++ b/ops/optimizer_tests/op_ffi_ptr_value.out
@@ -26,6 +26,7 @@ impl op_ffi_ptr_value {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/op_print.out b/ops/optimizer_tests/op_print.out
index f22553c767..38602b3c10 100644
--- a/ops/optimizer_tests/op_print.out
+++ b/ops/optimizer_tests/op_print.out
@@ -22,6 +22,7 @@ impl op_print {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/op_state.out b/ops/optimizer_tests/op_state.out
index 619a097482..f3fdb14a0f 100644
--- a/ops/optimizer_tests/op_state.out
+++ b/ops/optimizer_tests/op_state.out
@@ -26,6 +26,7 @@ impl op_set_exit_code {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/op_state_basic1.out b/ops/optimizer_tests/op_state_basic1.out
index b2926753ea..0895b7e7d1 100644
--- a/ops/optimizer_tests/op_state_basic1.out
+++ b/ops/optimizer_tests/op_state_basic1.out
@@ -26,6 +26,7 @@ impl foo {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/op_state_generics.out b/ops/optimizer_tests/op_state_generics.out
index 88eeefe148..e92e12616e 100644
--- a/ops/optimizer_tests/op_state_generics.out
+++ b/ops/optimizer_tests/op_state_generics.out
@@ -32,6 +32,7 @@ impl op_foo {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/op_state_result.out b/ops/optimizer_tests/op_state_result.out
index fb0fdb25f4..2c5c042d7a 100644
--- a/ops/optimizer_tests/op_state_result.out
+++ b/ops/optimizer_tests/op_state_result.out
@@ -26,6 +26,7 @@ impl foo {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/op_state_warning.out b/ops/optimizer_tests/op_state_warning.out
index 5a4b481c4f..ef8a8e0afc 100644
--- a/ops/optimizer_tests/op_state_warning.out
+++ b/ops/optimizer_tests/op_state_warning.out
@@ -26,6 +26,7 @@ impl op_listen {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/op_state_with_transforms.out b/ops/optimizer_tests/op_state_with_transforms.out
index 07e1fefb93..9532016f48 100644
--- a/ops/optimizer_tests/op_state_with_transforms.out
+++ b/ops/optimizer_tests/op_state_with_transforms.out
@@ -32,6 +32,7 @@ impl op_now {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/opstate_with_arity.out b/ops/optimizer_tests/opstate_with_arity.out
index ab4e905d5b..e4c6097610 100644
--- a/ops/optimizer_tests/opstate_with_arity.out
+++ b/ops/optimizer_tests/opstate_with_arity.out
@@ -26,6 +26,7 @@ impl op_add_4 {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/option_arg.out b/ops/optimizer_tests/option_arg.out
index 14dca54877..3790ef4fa6 100644
--- a/ops/optimizer_tests/option_arg.out
+++ b/ops/optimizer_tests/option_arg.out
@@ -22,6 +22,7 @@ impl op_try_close {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/owned_string.out b/ops/optimizer_tests/owned_string.out
index 62fb45ed7a..023a900718 100644
--- a/ops/optimizer_tests/owned_string.out
+++ b/ops/optimizer_tests/owned_string.out
@@ -26,6 +26,7 @@ impl op_string_length {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/param_mut_binding_warning.out b/ops/optimizer_tests/param_mut_binding_warning.out
index 3a93a738f7..1655ece761 100644
--- a/ops/optimizer_tests/param_mut_binding_warning.out
+++ b/ops/optimizer_tests/param_mut_binding_warning.out
@@ -22,6 +22,7 @@ impl op_read_sync {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/raw_ptr.out b/ops/optimizer_tests/raw_ptr.out
index 12f93f99d5..7ca92878fa 100644
--- a/ops/optimizer_tests/raw_ptr.out
+++ b/ops/optimizer_tests/raw_ptr.out
@@ -32,6 +32,7 @@ impl op_ffi_ptr_of {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/serde_v8_value.out b/ops/optimizer_tests/serde_v8_value.out
index 6ee56d4606..d8086c7f9a 100644
--- a/ops/optimizer_tests/serde_v8_value.out
+++ b/ops/optimizer_tests/serde_v8_value.out
@@ -26,6 +26,7 @@ impl op_is_proxy {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/strings.out b/ops/optimizer_tests/strings.out
index 623ff1bbb0..9712e46877 100644
--- a/ops/optimizer_tests/strings.out
+++ b/ops/optimizer_tests/strings.out
@@ -26,6 +26,7 @@ impl op_string_length {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/strings_result.out b/ops/optimizer_tests/strings_result.out
index fd847d9ca8..6ef5963a69 100644
--- a/ops/optimizer_tests/strings_result.out
+++ b/ops/optimizer_tests/strings_result.out
@@ -22,6 +22,7 @@ impl op_string_length {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/u64_result.out b/ops/optimizer_tests/u64_result.out
index efe6c9d23f..6744e65acb 100644
--- a/ops/optimizer_tests/u64_result.out
+++ b/ops/optimizer_tests/u64_result.out
@@ -22,6 +22,7 @@ impl op_bench_now {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/uint8array.out b/ops/optimizer_tests/uint8array.out
index 49926c747b..a26e25e4f3 100644
--- a/ops/optimizer_tests/uint8array.out
+++ b/ops/optimizer_tests/uint8array.out
@@ -26,6 +26,7 @@ impl op_import_spki_x25519 {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/unit_result.out b/ops/optimizer_tests/unit_result.out
index 0a66f4fe61..ab9f158df4 100644
--- a/ops/optimizer_tests/unit_result.out
+++ b/ops/optimizer_tests/unit_result.out
@@ -26,6 +26,7 @@ impl op_unit_result {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/unit_result2.out b/ops/optimizer_tests/unit_result2.out
index 045f022faf..4a03270d87 100644
--- a/ops/optimizer_tests/unit_result2.out
+++ b/ops/optimizer_tests/unit_result2.out
@@ -26,6 +26,7 @@ impl op_set_nodelay {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/unit_ret.out b/ops/optimizer_tests/unit_ret.out
index a3a0d5ea92..942d907e95 100644
--- a/ops/optimizer_tests/unit_ret.out
+++ b/ops/optimizer_tests/unit_ret.out
@@ -26,6 +26,7 @@ impl op_unit {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/ops/optimizer_tests/wasm_op.out b/ops/optimizer_tests/wasm_op.out
index 8359262929..acc00b3b17 100644
--- a/ops/optimizer_tests/wasm_op.out
+++ b/ops/optimizer_tests/wasm_op.out
@@ -26,6 +26,7 @@ impl op_wasm {
             is_async: false,
             is_unstable: false,
             is_v8: false,
+            force_registration: false,
         }
     }
     #[inline]
diff --git a/runtime/ops/fs_events.rs b/runtime/ops/fs_events.rs
index 05cc22152f..27e76b3d34 100644
--- a/runtime/ops/fs_events.rs
+++ b/runtime/ops/fs_events.rs
@@ -30,7 +30,10 @@ use tokio::sync::mpsc;
 
 deno_core::extension!(
   deno_fs_events,
-  ops = [op_fs_events_open, op_fs_events_poll]
+  ops = [op_fs_events_open, op_fs_events_poll],
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 struct FsEventsResource {
diff --git a/runtime/ops/http.rs b/runtime/ops/http.rs
index b9899b4e3f..3a316d8003 100644
--- a/runtime/ops/http.rs
+++ b/runtime/ops/http.rs
@@ -30,6 +30,9 @@ use tokio::net::UnixStream;
 deno_core::extension!(
   deno_http_runtime,
   ops = [op_http_start, op_http_upgrade, op_flash_upgrade_http],
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 #[op]
diff --git a/runtime/ops/os/mod.rs b/runtime/ops/os/mod.rs
index b346293954..70a1263018 100644
--- a/runtime/ops/os/mod.rs
+++ b/runtime/ops/os/mod.rs
@@ -48,23 +48,23 @@ deno_core::extension!(
   state = |state, options| {
     state.put::<ExitCode>(options.exit_code);
   },
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  }
 );
 
 deno_core::extension!(
   deno_os_worker,
   ops_fn = deno_ops,
   middleware = |op| match op.name {
-    "op_exit" => noop_op::decl(),
-    "op_set_exit_code" => noop_op::decl(),
+    "op_exit" | "op_set_exit_code" => op.disable(),
     _ => op,
   },
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  }
 );
 
-#[op]
-fn noop_op() -> Result<(), AnyError> {
-  Ok(())
-}
-
 #[op]
 fn op_exec_path(state: &mut OpState) -> Result<String, AnyError> {
   let current_exe = env::current_exe().unwrap();
diff --git a/runtime/ops/permissions.rs b/runtime/ops/permissions.rs
index c08d11e4af..6f7b98a304 100644
--- a/runtime/ops/permissions.rs
+++ b/runtime/ops/permissions.rs
@@ -17,7 +17,10 @@ deno_core::extension!(
     op_query_permission,
     op_revoke_permission,
     op_request_permission,
-  ]
+  ],
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 #[derive(Deserialize)]
diff --git a/runtime/ops/process.rs b/runtime/ops/process.rs
index a15b63f808..cf8740255d 100644
--- a/runtime/ops/process.rs
+++ b/runtime/ops/process.rs
@@ -107,7 +107,10 @@ deno_core::extension!(
     deprecated::op_run,
     deprecated::op_run_status,
     deprecated::op_kill,
-  ]
+  ],
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 struct ChildResource(tokio::process::Child);
diff --git a/runtime/ops/runtime.rs b/runtime/ops/runtime.rs
index a77e888c82..8802f9cd6c 100644
--- a/runtime/ops/runtime.rs
+++ b/runtime/ops/runtime.rs
@@ -12,7 +12,10 @@ deno_core::extension!(
   options = { main_module: ModuleSpecifier },
   state = |state, options| {
     state.put::<ModuleSpecifier>(options.main_module);
-  }
+  },
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 #[op]
diff --git a/runtime/ops/signal.rs b/runtime/ops/signal.rs
index 9cc261d854..93e1cfef28 100644
--- a/runtime/ops/signal.rs
+++ b/runtime/ops/signal.rs
@@ -31,7 +31,10 @@ use tokio::signal::windows::CtrlC;
 
 deno_core::extension!(
   deno_signal,
-  ops = [op_signal_bind, op_signal_unbind, op_signal_poll]
+  ops = [op_signal_bind, op_signal_unbind, op_signal_poll],
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 #[cfg(unix)]
diff --git a/runtime/ops/tty.rs b/runtime/ops/tty.rs
index 60144e408a..3146f22e22 100644
--- a/runtime/ops/tty.rs
+++ b/runtime/ops/tty.rs
@@ -34,7 +34,10 @@ fn get_windows_handle(
 
 deno_core::extension!(
   deno_tty,
-  ops = [op_stdin_set_raw, op_isatty, op_console_size]
+  ops = [op_stdin_set_raw, op_isatty, op_console_size],
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 // ref: <https://learn.microsoft.com/en-us/windows/console/setconsolemode>
diff --git a/runtime/ops/web_worker.rs b/runtime/ops/web_worker.rs
index 45137913e4..7952a03f26 100644
--- a/runtime/ops/web_worker.rs
+++ b/runtime/ops/web_worker.rs
@@ -24,7 +24,10 @@ deno_core::extension!(
     op_worker_close,
     op_worker_get_type,
     op_worker_sync_fetch,
-  ]
+  ],
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 #[op]
diff --git a/runtime/ops/worker_host.rs b/runtime/ops/worker_host.rs
index 26c99efab0..d5285ec890 100644
--- a/runtime/ops/worker_host.rs
+++ b/runtime/ops/worker_host.rs
@@ -118,7 +118,10 @@ deno_core::extension!(
     let format_js_error_fn_holder =
       FormatJsErrorFnHolder(options.format_js_error_fn);
     state.put::<FormatJsErrorFnHolder>(format_js_error_fn_holder);
-  }
+  },
+  customizer = |ext: &mut deno_core::ExtensionBuilder| {
+    ext.force_op_registration();
+  },
 );
 
 #[derive(Deserialize)]