diff --git a/Cargo.lock b/Cargo.lock
index 620e88817d..b93f5c779a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6154,8 +6154,8 @@ version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5e2ee588991b9e7e6c8338edf3333fbe4da35dc72092643958ebb43f0ab2c49c"
 dependencies = [
- "proc-macro2 1.0.82",
- "quote 1.0.36",
+ "proc-macro2",
+ "quote",
  "syn 1.0.109",
 ]
 
@@ -6165,8 +6165,8 @@ version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e6fb8df20c9bcaa8ad6ab513f7b40104840c8867d5751126e4df3b08388d0cc7"
 dependencies = [
- "proc-macro2 1.0.82",
- "quote 1.0.36",
+ "proc-macro2",
+ "quote",
  "syn 1.0.109",
 ]
 
diff --git a/benches/data_loader_bench.rs b/benches/data_loader_bench.rs
index 71a92c233e..a63548319f 100644
--- a/benches/data_loader_bench.rs
+++ b/benches/data_loader_bench.rs
@@ -9,8 +9,11 @@ use async_graphql_value::ConstValue;
 use criterion::Criterion;
 use hyper::body::Bytes;
 use reqwest::Request;
-use tailcall::{Batch, DataLoaderRequest, EnvIO, FileIO, HttpDataLoader, HttpIO, Response, TargetRuntime, WorkerIO};
-use tailcall::javascript::{Command, Event};
+use tailcall::core::javascript::{Command, Event};
+use tailcall::{
+    Batch, DataLoaderRequest, EnvIO, FileIO, HttpDataLoader, HttpIO, Response, TargetRuntime,
+    WorkerIO,
+};
 
 #[derive(Clone)]
 struct MockHttpClient {
diff --git a/benches/impl_path_string_for_evaluation_context.rs b/benches/impl_path_string_for_evaluation_context.rs
index cb51cbdcd9..3e819782fe 100644
--- a/benches/impl_path_string_for_evaluation_context.rs
+++ b/benches/impl_path_string_for_evaluation_context.rs
@@ -16,10 +16,10 @@ use indexmap::IndexMap;
 use once_cell::sync::Lazy;
 use reqwest::{Client, Request};
 use reqwest_middleware::{ClientBuilder, ClientWithMiddleware};
-use tailcall::javascript::{Command, Event};
+use tailcall::core::javascript::{Command, Event};
 use tailcall::{
-    WorkerIO, EnvIO, EvaluationContext, FileIO, HttpIO, InMemoryCache, PathString, RequestContext,
-    ResolverContextLike, Response, Server, TargetRuntime, Upstream,
+    EnvIO, EvaluationContext, FileIO, HttpIO, InMemoryCache, PathString, RequestContext,
+    ResolverContextLike, Response, Server, TargetRuntime, Upstream, WorkerIO,
 };
 pub struct JsRuntime {}
 
diff --git a/src/cli/runtime/mod.rs b/src/cli/runtime/mod.rs
index 8e5ecc5ff6..09eec2109d 100644
--- a/src/cli/runtime/mod.rs
+++ b/src/cli/runtime/mod.rs
@@ -7,9 +7,9 @@ use std::sync::Arc;
 
 use crate::core::blueprint::Blueprint;
 use crate::core::cache::InMemoryCache;
-use crate::javascript::{Command, Event};
+use crate::core::javascript::{Command, Event};
 use crate::core::runtime::TargetRuntime;
-use crate::core::{blueprint, EnvIO, FileIO, HttpIO, WorkerIO};
+use crate::core::{blueprint, javascript, EnvIO, FileIO, HttpIO, WorkerIO};
 
 // Provides access to env in native rust environment
 fn init_env() -> Arc<dyn EnvIO> {
@@ -24,7 +24,7 @@ fn init_file() -> Arc<dyn FileIO> {
 fn init_hook_http(http: Arc<impl HttpIO>, script: Option<blueprint::Script>) -> Arc<dyn HttpIO> {
     #[cfg(feature = "js")]
     if let Some(script) = script {
-        return crate::javascript::init_http(http, script);
+        return javascript::init_http(http, script);
     }
 
     #[cfg(not(feature = "js"))]
@@ -35,13 +35,13 @@ fn init_hook_http(http: Arc<impl HttpIO>, script: Option<blueprint::Script>) ->
 }
 
 fn init_http_worker_io(script: Option<blueprint::Script>) -> Arc<dyn WorkerIO<Event, Command>> {
-    crate::javascript::init_rt(script)
+    javascript::init_rt(script)
 }
 
 fn init_resolver_worker_io(
     script: Option<blueprint::Script>,
 ) -> Arc<dyn WorkerIO<Option<async_graphql::Value>, async_graphql::Value>> {
-    crate::javascript::init_rt(script)
+    javascript::init_rt(script)
 }
 
 // Provides access to http in native rust environment
diff --git a/src/core/blueprint/operators/js.rs b/src/core/blueprint/operators/js.rs
index f155bf8d0d..624c6dad4d 100644
--- a/src/core/blueprint/operators/js.rs
+++ b/src/core/blueprint/operators/js.rs
@@ -1,9 +1,10 @@
-use crate::blueprint::*;
-use crate::config;
-use crate::config::Field;
-use crate::lambda::Expression;
-use crate::try_fold::TryFold;
-use crate::valid::{Valid, Validator};
+use crate::core::blueprint::FieldDefinition;
+use crate::core::config;
+use crate::core::config::Field;
+use crate::core::lambda::IO;
+use crate::core::try_fold::TryFold;
+use crate::core::valid::Valid;
+use crate::{ConfigModule, Expression, ValidationError, Validator};
 
 pub struct CompileJs<'a> {
     pub name: &'a str,
@@ -36,9 +37,9 @@ fn js_enabled(inputs: CompileJs) -> Valid<Expression, String> {
                     ctx.eval::<(), &str>(script)?;
                     Ok::<_, anyhow::Error>(())
                 })
-                .map_err(|e| crate::valid::ValidationError::new(e.to_string())),
+                .map_err(|e| ValidationError::new(e.to_string())),
             )
-            .map(|_| Expression::IO(crate::lambda::IO::Js { name: name.to_string() }))
+            .map(|_| Expression::IO(IO::Js { name: name.to_string() }))
         },
     )
 }
diff --git a/src/javascript/enable_js/js_request.rs b/src/core/javascript/enable_js/js_request.rs
similarity index 99%
rename from src/javascript/enable_js/js_request.rs
rename to src/core/javascript/enable_js/js_request.rs
index 537ab5598c..3d4bc7434c 100644
--- a/src/javascript/enable_js/js_request.rs
+++ b/src/core/javascript/enable_js/js_request.rs
@@ -9,7 +9,7 @@ use rquickjs::{FromJs, IntoJs};
 use serde::{Deserialize, Serialize};
 
 use crate::core::is_default;
-use crate::javascript::JsRequest;
+use crate::core::javascript::JsRequest;
 
 impl JsRequest {
     fn uri(&self) -> Uri {
diff --git a/src/javascript/enable_js/js_response.rs b/src/core/javascript/enable_js/js_response.rs
similarity index 99%
rename from src/javascript/enable_js/js_response.rs
rename to src/core/javascript/enable_js/js_response.rs
index b712d58f77..810791d844 100644
--- a/src/javascript/enable_js/js_response.rs
+++ b/src/core/javascript/enable_js/js_response.rs
@@ -5,7 +5,7 @@ use rquickjs::{FromJs, IntoJs};
 
 use super::create_header_map;
 use crate::core::http::Response;
-use crate::javascript::JsResponse;
+use crate::core::javascript::JsResponse;
 
 impl JsResponse {
     pub fn status(&self) -> u16 {
diff --git a/src/javascript/enable_js/mod.rs b/src/core/javascript/enable_js/mod.rs
similarity index 100%
rename from src/javascript/enable_js/mod.rs
rename to src/core/javascript/enable_js/mod.rs
diff --git a/src/javascript/enable_js/request_filter.rs b/src/core/javascript/enable_js/request_filter.rs
similarity index 97%
rename from src/javascript/enable_js/request_filter.rs
rename to src/core/javascript/enable_js/request_filter.rs
index 9f7a0c06fd..d983eb9bbc 100644
--- a/src/javascript/enable_js/request_filter.rs
+++ b/src/core/javascript/enable_js/request_filter.rs
@@ -3,8 +3,8 @@ use std::sync::Arc;
 use hyper::body::Bytes;
 use rquickjs::FromJs;
 
-use super::{JsRequest, JsResponse};
 use crate::core::http::Response;
+use crate::core::javascript::{Command, Event, JsRequest, JsResponse};
 use crate::core::{HttpIO, WorkerIO};
 
 impl<'js> FromJs<'js> for Command {
@@ -93,9 +93,8 @@ mod tests {
     use hyper::body::Bytes;
     use rquickjs::{Context, FromJs, IntoJs, Object, Runtime, String as JsString};
 
-    use crate::cli::javascript::request_filter::Command;
-    use crate::cli::javascript::{JsRequest, JsResponse};
     use crate::core::http::Response;
+    use crate::core::javascript::{Command, JsRequest, JsResponse};
 
     #[test]
     fn test_command_from_invalid_object() {
diff --git a/src/javascript/enable_js/runtime.rs b/src/core/javascript/enable_js/runtime.rs
similarity index 99%
rename from src/javascript/enable_js/runtime.rs
rename to src/core/javascript/enable_js/runtime.rs
index c8731f886f..9e052f51e2 100644
--- a/src/javascript/enable_js/runtime.rs
+++ b/src/core/javascript/enable_js/runtime.rs
@@ -5,7 +5,7 @@ use std::thread;
 use async_graphql_value::ConstValue;
 use rquickjs::{Context, Ctx, FromJs, Function, IntoJs, Value};
 
-use crate::javascript::{Command, Event, JsRequest};
+use crate::core::javascript::{Command, Event, JsRequest};
 use crate::core::{blueprint, WorkerIO};
 
 struct LocalRuntime(Context);
diff --git a/src/javascript/mod.rs b/src/core/javascript/mod.rs
similarity index 83%
rename from src/javascript/mod.rs
rename to src/core/javascript/mod.rs
index 324500270a..8b327735d8 100644
--- a/src/javascript/mod.rs
+++ b/src/core/javascript/mod.rs
@@ -27,10 +27,9 @@ pub enum Command {
     Response(JsResponse),
 }
 
-use crate::blueprint::Script;
-use crate::http::Response;
+use crate::{Response, Script};
 
-pub fn init_rt(script: Option<crate::blueprint::Script>) -> Arc<Runtime> {
+pub fn init_rt(script: Option<Script>) -> Arc<Runtime> {
     if let Some(script) = script {
         Arc::new(Runtime::new(script))
     } else {
diff --git a/src/javascript/runtime_no_js.rs b/src/core/javascript/runtime_no_js.rs
similarity index 100%
rename from src/javascript/runtime_no_js.rs
rename to src/core/javascript/runtime_no_js.rs
diff --git a/src/javascript/shim/console.js b/src/core/javascript/shim/console.js
similarity index 100%
rename from src/javascript/shim/console.js
rename to src/core/javascript/shim/console.js
diff --git a/src/core/mod.rs b/src/core/mod.rs
index 4f69617bde..a135e37d6d 100644
--- a/src/core/mod.rs
+++ b/src/core/mod.rs
@@ -18,6 +18,7 @@ pub mod grpc;
 pub mod has_headers;
 pub mod helpers;
 pub mod http;
+pub mod javascript;
 pub mod json;
 pub mod lambda;
 pub mod merge_right;
diff --git a/src/core/runtime.rs b/src/core/runtime.rs
index 76eabfed75..1c7eb707bb 100644
--- a/src/core/runtime.rs
+++ b/src/core/runtime.rs
@@ -2,7 +2,7 @@ use std::sync::Arc;
 
 use async_graphql_value::ConstValue;
 
-use crate::javascript::{Command, Event};
+use crate::core::javascript::{Command, Event};
 use crate::core::schema_extension::SchemaExtension;
 use crate::core::{Cache, EnvIO, FileIO, HttpIO, WorkerIO};
 
@@ -58,8 +58,9 @@ pub mod test {
     use crate::core::blueprint::Upstream;
     use crate::core::cache::InMemoryCache;
     use crate::core::http::Response;
+    use crate::core::javascript::{Command, Event};
     use crate::core::runtime::TargetRuntime;
-    use crate::core::{blueprint, EnvIO, FileIO, HttpIO};
+    use crate::core::{blueprint, javascript, EnvIO, FileIO, HttpIO};
     use crate::WorkerIO;
 
     #[derive(Clone)]
diff --git a/src/lib.rs b/src/lib.rs
index 41eae53292..b39a59d4fc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,4 @@
-mod core;
+pub mod core;
 
 #[cfg(feature = "cli")]
 pub mod cli;
diff --git a/tailcall-aws-lambda/src/worker_io.rs b/tailcall-aws-lambda/src/worker_io.rs
index f3af02710d..2fb3a239a8 100644
--- a/tailcall-aws-lambda/src/worker_io.rs
+++ b/tailcall-aws-lambda/src/worker_io.rs
@@ -1,5 +1,5 @@
 use async_graphql_value::ConstValue;
-use tailcall::javascript::{Command, Event};
+use tailcall::core::javascript::{Command, Event};
 use tailcall::WorkerIO;
 
 pub struct JsRuntime {}
diff --git a/tailcall-cloudflare/src/worker_io.rs b/tailcall-cloudflare/src/worker_io.rs
index f3af02710d..2fb3a239a8 100644
--- a/tailcall-cloudflare/src/worker_io.rs
+++ b/tailcall-cloudflare/src/worker_io.rs
@@ -1,5 +1,5 @@
 use async_graphql_value::ConstValue;
-use tailcall::javascript::{Command, Event};
+use tailcall::core::javascript::{Command, Event};
 use tailcall::WorkerIO;
 
 pub struct JsRuntime {}
diff --git a/tests/core/parse.rs b/tests/core/parse.rs
index e1c05cca1e..495ad4c2f7 100644
--- a/tests/core/parse.rs
+++ b/tests/core/parse.rs
@@ -10,6 +10,7 @@ use std::sync::Arc;
 use anyhow::anyhow;
 use markdown::mdast::Node;
 use markdown::ParseOptions;
+use tailcall::core::javascript;
 use tailcall::{AppContext, Blueprint, ConfigModule, EnvIO, InMemoryCache, Source, TargetRuntime};
 
 use super::file::File;
diff --git a/tests/core/runtime.rs b/tests/core/runtime.rs
index a632f15d0e..d13af373a0 100644
--- a/tests/core/runtime.rs
+++ b/tests/core/runtime.rs
@@ -6,6 +6,7 @@ use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::Arc;
 
 use derive_setters::Setters;
+use tailcall::core::javascript;
 use tailcall::{InMemoryCache, Script, Source, TargetRuntime};
 
 use super::env::Env;
diff --git a/tests/core/worker_io.rs b/tests/core/worker_io.rs
index f3af02710d..2fb3a239a8 100644
--- a/tests/core/worker_io.rs
+++ b/tests/core/worker_io.rs
@@ -1,5 +1,5 @@
 use async_graphql_value::ConstValue;
-use tailcall::javascript::{Command, Event};
+use tailcall::core::javascript::{Command, Event};
 use tailcall::WorkerIO;
 
 pub struct JsRuntime {}
diff --git a/tests/server_spec.rs b/tests/server_spec.rs
index 1c8fbb4b2c..748e8b36a8 100644
--- a/tests/server_spec.rs
+++ b/tests/server_spec.rs
@@ -13,6 +13,8 @@ pub mod test {
     use hyper::body::Bytes;
     use reqwest::Client;
     use reqwest_middleware::{ClientBuilder, ClientWithMiddleware};
+    use tailcall::core::javascript;
+    use tailcall::core::javascript::{Command, Event};
     use tailcall::{InMemoryCache, Response, Script, TargetRuntime, WorkerIO};
     use tokio::io::{AsyncReadExt, AsyncWriteExt};