diff --git a/cli/tools/repl/cdp.rs b/cli/cdp.rs
similarity index 86%
rename from cli/tools/repl/cdp.rs
rename to cli/cdp.rs
index f90a1875e3..cb9933a033 100644
--- a/cli/tools/repl/cdp.rs
+++ b/cli/cdp.rs
@@ -424,3 +424,81 @@ pub type UnserializableValue = String;
 
 /// <https://chromedevtools.github.io/devtools-protocol/tot/Runtime/#type-UniqueDebuggerId>
 pub type UniqueDebuggerId = String;
+
+/// <https://chromedevtools.github.io/devtools-protocol/tot/Debugger/#method-setScriptSource>
+#[derive(Debug, Deserialize)]
+pub struct SetScriptSourceResponse {
+  pub status: Status,
+}
+
+#[derive(Debug, Deserialize)]
+pub enum Status {
+  Ok,
+  CompileError,
+  BlockedByActiveGenerator,
+  BlockedByActiveFunction,
+  BlockedByTopLevelEsModuleChange,
+}
+
+/// <https://chromedevtools.github.io/devtools-protocol/tot/Debugger/#event-scriptParsed>
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ScriptParsed {
+  pub script_id: String,
+  pub url: String,
+}
+
+/// <https://chromedevtools.github.io/devtools-protocol/tot/Profiler/#type-CoverageRange>
+#[derive(Debug, Eq, PartialEq, Serialize, Deserialize, Clone)]
+#[serde(rename_all = "camelCase")]
+pub struct CoverageRange {
+  /// Start character index.
+  #[serde(rename = "startOffset")]
+  pub start_char_offset: usize,
+  /// End character index.
+  #[serde(rename = "endOffset")]
+  pub end_char_offset: usize,
+  pub count: i64,
+}
+
+/// <https://chromedevtools.github.io/devtools-protocol/tot/Profiler/#type-FunctionCoverage>
+#[derive(Debug, Eq, PartialEq, Serialize, Deserialize, Clone)]
+#[serde(rename_all = "camelCase")]
+pub struct FunctionCoverage {
+  pub function_name: String,
+  pub ranges: Vec<CoverageRange>,
+  pub is_block_coverage: bool,
+}
+
+/// <https://chromedevtools.github.io/devtools-protocol/tot/Profiler/#type-ScriptCoverage>
+#[derive(Debug, Eq, PartialEq, Serialize, Deserialize, Clone)]
+#[serde(rename_all = "camelCase")]
+pub struct ScriptCoverage {
+  pub script_id: String,
+  pub url: String,
+  pub functions: Vec<FunctionCoverage>,
+}
+
+/// <https://chromedevtools.github.io/devtools-protocol/tot/Profiler/#method-startPreciseCoverage>
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct StartPreciseCoverageArgs {
+  pub call_count: bool,
+  pub detailed: bool,
+  pub allow_triggered_updates: bool,
+}
+
+/// <https://chromedevtools.github.io/devtools-protocol/tot/Profiler/#method-startPreciseCoverage>
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct StartPreciseCoverageResponse {
+  pub timestamp: f64,
+}
+
+/// <https://chromedevtools.github.io/devtools-protocol/tot/Profiler/#method-takePreciseCoverage>
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct TakePreciseCoverageResponse {
+  pub result: Vec<ScriptCoverage>,
+  pub timestamp: f64,
+}
diff --git a/cli/main.rs b/cli/main.rs
index 18b0fe8277..6c5a78e617 100644
--- a/cli/main.rs
+++ b/cli/main.rs
@@ -3,6 +3,7 @@
 mod args;
 mod auth_tokens;
 mod cache;
+mod cdp;
 mod deno_std;
 mod emit;
 mod errors;
diff --git a/cli/tools/coverage/json_types.rs b/cli/tools/coverage/json_types.rs
deleted file mode 100644
index d5c6591f72..0000000000
--- a/cli/tools/coverage/json_types.rs
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-
-use serde::Deserialize;
-use serde::Serialize;
-
-#[derive(Debug, Eq, PartialEq, Serialize, Deserialize, Clone)]
-#[serde(rename_all = "camelCase")]
-pub struct CoverageRange {
-  /// Start character index.
-  #[serde(rename = "startOffset")]
-  pub start_char_offset: usize,
-  /// End character index.
-  #[serde(rename = "endOffset")]
-  pub end_char_offset: usize,
-  pub count: i64,
-}
-
-#[derive(Debug, Eq, PartialEq, Serialize, Deserialize, Clone)]
-#[serde(rename_all = "camelCase")]
-pub struct FunctionCoverage {
-  pub function_name: String,
-  pub ranges: Vec<CoverageRange>,
-  pub is_block_coverage: bool,
-}
-
-#[derive(Debug, Eq, PartialEq, Serialize, Deserialize, Clone)]
-#[serde(rename_all = "camelCase")]
-pub struct ScriptCoverage {
-  pub script_id: String,
-  pub url: String,
-  pub functions: Vec<FunctionCoverage>,
-}
-
-#[derive(Debug, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct StartPreciseCoverageParameters {
-  pub call_count: bool,
-  pub detailed: bool,
-  pub allow_triggered_updates: bool,
-}
-
-#[derive(Debug, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct StartPreciseCoverageReturnObject {
-  pub timestamp: f64,
-}
-
-#[derive(Debug, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct TakePreciseCoverageReturnObject {
-  pub result: Vec<ScriptCoverage>,
-  pub timestamp: f64,
-}
-
-// TODO(bartlomieju): remove me
-#[derive(Eq, PartialEq, Clone, Debug, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct ProcessCoverage {
-  pub result: Vec<ScriptCoverage>,
-}
diff --git a/cli/tools/coverage/merge.rs b/cli/tools/coverage/merge.rs
index c7f9b15244..a15f4b552a 100644
--- a/cli/tools/coverage/merge.rs
+++ b/cli/tools/coverage/merge.rs
@@ -3,24 +3,26 @@
 // Forked from https://github.com/demurgos/v8-coverage/tree/d0ca18da8740198681e0bc68971b0a6cdb11db3e/rust
 // Copyright 2021 Charles Samborski. All rights reserved. MIT license.
 
-use super::json_types::CoverageRange;
-use super::json_types::FunctionCoverage;
-use super::json_types::ProcessCoverage;
-use super::json_types::ScriptCoverage;
 use super::range_tree::RangeTree;
 use super::range_tree::RangeTreeArena;
+use crate::cdp;
 use std::collections::BTreeMap;
 use std::collections::BTreeSet;
 use std::collections::HashMap;
 use std::iter::Peekable;
 
+#[derive(Eq, PartialEq, Clone, Debug)]
+pub struct ProcessCoverage {
+  pub result: Vec<cdp::ScriptCoverage>,
+}
+
 pub fn merge_processes(
   mut processes: Vec<ProcessCoverage>,
 ) -> Option<ProcessCoverage> {
   if processes.len() <= 1 {
     return processes.pop();
   }
-  let mut url_to_scripts: BTreeMap<String, Vec<ScriptCoverage>> =
+  let mut url_to_scripts: BTreeMap<String, Vec<cdp::ScriptCoverage>> =
     BTreeMap::new();
   for process_cov in processes {
     for script_cov in process_cov.result {
@@ -31,12 +33,13 @@ pub fn merge_processes(
     }
   }
 
-  let result: Vec<ScriptCoverage> = url_to_scripts
+  let result: Vec<cdp::ScriptCoverage> = url_to_scripts
     .into_iter()
     .enumerate()
     .map(|(script_id, (_, scripts))| (script_id, scripts))
     .map(|(script_id, scripts)| {
-      let mut merged: ScriptCoverage = merge_scripts(scripts.to_vec()).unwrap();
+      let mut merged: cdp::ScriptCoverage =
+        merge_scripts(scripts.to_vec()).unwrap();
       merged.script_id = script_id.to_string();
       merged
     })
@@ -46,21 +49,21 @@ pub fn merge_processes(
 }
 
 pub fn merge_scripts(
-  mut scripts: Vec<ScriptCoverage>,
-) -> Option<ScriptCoverage> {
+  mut scripts: Vec<cdp::ScriptCoverage>,
+) -> Option<cdp::ScriptCoverage> {
   if scripts.len() <= 1 {
     return scripts.pop();
   }
   let (script_id, url) = {
-    let first: &ScriptCoverage = &scripts[0];
+    let first: &cdp::ScriptCoverage = &scripts[0];
     (first.script_id.clone(), first.url.clone())
   };
-  let mut range_to_funcs: BTreeMap<CharRange, Vec<FunctionCoverage>> =
+  let mut range_to_funcs: BTreeMap<CharRange, Vec<cdp::FunctionCoverage>> =
     BTreeMap::new();
   for script_cov in scripts {
     for func_cov in script_cov.functions {
       let root_range = {
-        let root_range_cov: &CoverageRange = &func_cov.ranges[0];
+        let root_range_cov: &cdp::CoverageRange = &func_cov.ranges[0];
         CharRange {
           start: root_range_cov.start_char_offset,
           end: root_range_cov.end_char_offset,
@@ -70,12 +73,12 @@ pub fn merge_scripts(
     }
   }
 
-  let functions: Vec<FunctionCoverage> = range_to_funcs
+  let functions: Vec<cdp::FunctionCoverage> = range_to_funcs
     .into_values()
     .map(|funcs| merge_functions(funcs).unwrap())
     .collect();
 
-  Some(ScriptCoverage {
+  Some(cdp::ScriptCoverage {
     script_id,
     url,
     functions,
@@ -105,8 +108,8 @@ impl PartialOrd for CharRange {
 }
 
 pub fn merge_functions(
-  mut funcs: Vec<FunctionCoverage>,
-) -> Option<FunctionCoverage> {
+  mut funcs: Vec<cdp::FunctionCoverage>,
+) -> Option<cdp::FunctionCoverage> {
   if funcs.len() <= 1 {
     return funcs.pop();
   }
@@ -124,7 +127,7 @@ pub fn merge_functions(
   let ranges = merged.to_ranges();
   let is_block_coverage: bool = !(ranges.len() == 1 && ranges[0].count == 0);
 
-  Some(FunctionCoverage {
+  Some(cdp::FunctionCoverage {
     function_name,
     ranges,
     is_block_coverage,
@@ -439,13 +442,13 @@ mod tests {
   fn two_flat_trees() {
     let inputs: Vec<ProcessCoverage> = vec![
       ProcessCoverage {
-        result: vec![ScriptCoverage {
+        result: vec![cdp::ScriptCoverage {
           script_id: String::from("0"),
           url: String::from("/lib.js"),
-          functions: vec![FunctionCoverage {
+          functions: vec![cdp::FunctionCoverage {
             function_name: String::from("lib"),
             is_block_coverage: true,
-            ranges: vec![CoverageRange {
+            ranges: vec![cdp::CoverageRange {
               start_char_offset: 0,
               end_char_offset: 9,
               count: 1,
@@ -454,13 +457,13 @@ mod tests {
         }],
       },
       ProcessCoverage {
-        result: vec![ScriptCoverage {
+        result: vec![cdp::ScriptCoverage {
           script_id: String::from("0"),
           url: String::from("/lib.js"),
-          functions: vec![FunctionCoverage {
+          functions: vec![cdp::FunctionCoverage {
             function_name: String::from("lib"),
             is_block_coverage: true,
-            ranges: vec![CoverageRange {
+            ranges: vec![cdp::CoverageRange {
               start_char_offset: 0,
               end_char_offset: 9,
               count: 2,
@@ -470,13 +473,13 @@ mod tests {
       },
     ];
     let expected: Option<ProcessCoverage> = Some(ProcessCoverage {
-      result: vec![ScriptCoverage {
+      result: vec![cdp::ScriptCoverage {
         script_id: String::from("0"),
         url: String::from("/lib.js"),
-        functions: vec![FunctionCoverage {
+        functions: vec![cdp::FunctionCoverage {
           function_name: String::from("lib"),
           is_block_coverage: true,
-          ranges: vec![CoverageRange {
+          ranges: vec![cdp::CoverageRange {
             start_char_offset: 0,
             end_char_offset: 9,
             count: 3,
@@ -492,19 +495,19 @@ mod tests {
   fn two_trees_with_matching_children() {
     let inputs: Vec<ProcessCoverage> = vec![
       ProcessCoverage {
-        result: vec![ScriptCoverage {
+        result: vec![cdp::ScriptCoverage {
           script_id: String::from("0"),
           url: String::from("/lib.js"),
-          functions: vec![FunctionCoverage {
+          functions: vec![cdp::FunctionCoverage {
             function_name: String::from("lib"),
             is_block_coverage: true,
             ranges: vec![
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 0,
                 end_char_offset: 9,
                 count: 10,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 3,
                 end_char_offset: 6,
                 count: 1,
@@ -514,19 +517,19 @@ mod tests {
         }],
       },
       ProcessCoverage {
-        result: vec![ScriptCoverage {
+        result: vec![cdp::ScriptCoverage {
           script_id: String::from("0"),
           url: String::from("/lib.js"),
-          functions: vec![FunctionCoverage {
+          functions: vec![cdp::FunctionCoverage {
             function_name: String::from("lib"),
             is_block_coverage: true,
             ranges: vec![
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 0,
                 end_char_offset: 9,
                 count: 20,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 3,
                 end_char_offset: 6,
                 count: 2,
@@ -537,19 +540,19 @@ mod tests {
       },
     ];
     let expected: Option<ProcessCoverage> = Some(ProcessCoverage {
-      result: vec![ScriptCoverage {
+      result: vec![cdp::ScriptCoverage {
         script_id: String::from("0"),
         url: String::from("/lib.js"),
-        functions: vec![FunctionCoverage {
+        functions: vec![cdp::FunctionCoverage {
           function_name: String::from("lib"),
           is_block_coverage: true,
           ranges: vec![
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 0,
               end_char_offset: 9,
               count: 30,
             },
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 3,
               end_char_offset: 6,
               count: 3,
@@ -566,19 +569,19 @@ mod tests {
   fn two_trees_with_partially_overlapping_children() {
     let inputs: Vec<ProcessCoverage> = vec![
       ProcessCoverage {
-        result: vec![ScriptCoverage {
+        result: vec![cdp::ScriptCoverage {
           script_id: String::from("0"),
           url: String::from("/lib.js"),
-          functions: vec![FunctionCoverage {
+          functions: vec![cdp::FunctionCoverage {
             function_name: String::from("lib"),
             is_block_coverage: true,
             ranges: vec![
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 0,
                 end_char_offset: 9,
                 count: 10,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 2,
                 end_char_offset: 5,
                 count: 1,
@@ -588,19 +591,19 @@ mod tests {
         }],
       },
       ProcessCoverage {
-        result: vec![ScriptCoverage {
+        result: vec![cdp::ScriptCoverage {
           script_id: String::from("0"),
           url: String::from("/lib.js"),
-          functions: vec![FunctionCoverage {
+          functions: vec![cdp::FunctionCoverage {
             function_name: String::from("lib"),
             is_block_coverage: true,
             ranges: vec![
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 0,
                 end_char_offset: 9,
                 count: 20,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 4,
                 end_char_offset: 7,
                 count: 2,
@@ -611,29 +614,29 @@ mod tests {
       },
     ];
     let expected: Option<ProcessCoverage> = Some(ProcessCoverage {
-      result: vec![ScriptCoverage {
+      result: vec![cdp::ScriptCoverage {
         script_id: String::from("0"),
         url: String::from("/lib.js"),
-        functions: vec![FunctionCoverage {
+        functions: vec![cdp::FunctionCoverage {
           function_name: String::from("lib"),
           is_block_coverage: true,
           ranges: vec![
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 0,
               end_char_offset: 9,
               count: 30,
             },
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 2,
               end_char_offset: 5,
               count: 21,
             },
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 4,
               end_char_offset: 5,
               count: 3,
             },
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 5,
               end_char_offset: 7,
               count: 12,
@@ -650,29 +653,29 @@ mod tests {
   fn two_trees_with_with_complementary_children_summing_to_the_same_count() {
     let inputs: Vec<ProcessCoverage> = vec![
       ProcessCoverage {
-        result: vec![ScriptCoverage {
+        result: vec![cdp::ScriptCoverage {
           script_id: String::from("0"),
           url: String::from("/lib.js"),
-          functions: vec![FunctionCoverage {
+          functions: vec![cdp::FunctionCoverage {
             function_name: String::from("lib"),
             is_block_coverage: true,
             ranges: vec![
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 0,
                 end_char_offset: 9,
                 count: 1,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 1,
                 end_char_offset: 8,
                 count: 6,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 1,
                 end_char_offset: 5,
                 count: 5,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 5,
                 end_char_offset: 8,
                 count: 7,
@@ -682,29 +685,29 @@ mod tests {
         }],
       },
       ProcessCoverage {
-        result: vec![ScriptCoverage {
+        result: vec![cdp::ScriptCoverage {
           script_id: String::from("0"),
           url: String::from("/lib.js"),
-          functions: vec![FunctionCoverage {
+          functions: vec![cdp::FunctionCoverage {
             function_name: String::from("lib"),
             is_block_coverage: true,
             ranges: vec![
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 0,
                 end_char_offset: 9,
                 count: 4,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 1,
                 end_char_offset: 8,
                 count: 8,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 1,
                 end_char_offset: 5,
                 count: 9,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 5,
                 end_char_offset: 8,
                 count: 7,
@@ -715,19 +718,19 @@ mod tests {
       },
     ];
     let expected: Option<ProcessCoverage> = Some(ProcessCoverage {
-      result: vec![ScriptCoverage {
+      result: vec![cdp::ScriptCoverage {
         script_id: String::from("0"),
         url: String::from("/lib.js"),
-        functions: vec![FunctionCoverage {
+        functions: vec![cdp::FunctionCoverage {
           function_name: String::from("lib"),
           is_block_coverage: true,
           ranges: vec![
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 0,
               end_char_offset: 9,
               count: 5,
             },
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 1,
               end_char_offset: 8,
               count: 14,
@@ -744,19 +747,19 @@ mod tests {
   fn merges_a_similar_sliding_chain_a_bc() {
     let inputs: Vec<ProcessCoverage> = vec![
       ProcessCoverage {
-        result: vec![ScriptCoverage {
+        result: vec![cdp::ScriptCoverage {
           script_id: String::from("0"),
           url: String::from("/lib.js"),
-          functions: vec![FunctionCoverage {
+          functions: vec![cdp::FunctionCoverage {
             function_name: String::from("lib"),
             is_block_coverage: true,
             ranges: vec![
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 0,
                 end_char_offset: 7,
                 count: 10,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 0,
                 end_char_offset: 4,
                 count: 1,
@@ -766,24 +769,24 @@ mod tests {
         }],
       },
       ProcessCoverage {
-        result: vec![ScriptCoverage {
+        result: vec![cdp::ScriptCoverage {
           script_id: String::from("0"),
           url: String::from("/lib.js"),
-          functions: vec![FunctionCoverage {
+          functions: vec![cdp::FunctionCoverage {
             function_name: String::from("lib"),
             is_block_coverage: true,
             ranges: vec![
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 0,
                 end_char_offset: 7,
                 count: 20,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 1,
                 end_char_offset: 6,
                 count: 11,
               },
-              CoverageRange {
+              cdp::CoverageRange {
                 start_char_offset: 2,
                 end_char_offset: 5,
                 count: 2,
@@ -794,29 +797,29 @@ mod tests {
       },
     ];
     let expected: Option<ProcessCoverage> = Some(ProcessCoverage {
-      result: vec![ScriptCoverage {
+      result: vec![cdp::ScriptCoverage {
         script_id: String::from("0"),
         url: String::from("/lib.js"),
-        functions: vec![FunctionCoverage {
+        functions: vec![cdp::FunctionCoverage {
           function_name: String::from("lib"),
           is_block_coverage: true,
           ranges: vec![
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 0,
               end_char_offset: 7,
               count: 30,
             },
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 0,
               end_char_offset: 6,
               count: 21,
             },
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 1,
               end_char_offset: 5,
               count: 12,
             },
-            CoverageRange {
+            cdp::CoverageRange {
               start_char_offset: 2,
               end_char_offset: 4,
               count: 3,
diff --git a/cli/tools/coverage/mod.rs b/cli/tools/coverage/mod.rs
index 67566d811a..cd4afe360a 100644
--- a/cli/tools/coverage/mod.rs
+++ b/cli/tools/coverage/mod.rs
@@ -3,6 +3,7 @@
 use crate::args::CoverageFlags;
 use crate::args::FileFlags;
 use crate::args::Flags;
+use crate::cdp;
 use crate::colors;
 use crate::factory::CliFactory;
 use crate::npm::CliNpmResolver;
@@ -34,11 +35,9 @@ use std::path::PathBuf;
 use text_lines::TextLines;
 use uuid::Uuid;
 
-mod json_types;
 mod merge;
 mod range_tree;
-
-use json_types::*;
+use merge::ProcessCoverage;
 
 pub struct CoverageCollector {
   pub dir: PathBuf,
@@ -84,8 +83,8 @@ impl CoverageCollector {
 
   async fn start_precise_coverage(
     &mut self,
-    parameters: StartPreciseCoverageParameters,
-  ) -> Result<StartPreciseCoverageReturnObject, AnyError> {
+    parameters: cdp::StartPreciseCoverageArgs,
+  ) -> Result<cdp::StartPreciseCoverageResponse, AnyError> {
     let return_value = self
       .session
       .post_message("Profiler.startPreciseCoverage", Some(parameters))
@@ -98,7 +97,7 @@ impl CoverageCollector {
 
   async fn take_precise_coverage(
     &mut self,
-  ) -> Result<TakePreciseCoverageReturnObject, AnyError> {
+  ) -> Result<cdp::TakePreciseCoverageResponse, AnyError> {
     let return_value = self
       .session
       .post_message::<()>("Profiler.takePreciseCoverage", None)
@@ -113,7 +112,7 @@ impl CoverageCollector {
     self.enable_debugger().await?;
     self.enable_profiler().await?;
     self
-      .start_precise_coverage(StartPreciseCoverageParameters {
+      .start_precise_coverage(cdp::StartPreciseCoverageArgs {
         call_count: true,
         detailed: true,
         allow_triggered_updates: false,
@@ -180,7 +179,7 @@ struct CoverageReport {
 }
 
 fn generate_coverage_report(
-  script_coverage: &ScriptCoverage,
+  script_coverage: &cdp::ScriptCoverage,
   script_source: String,
   maybe_source_map: &Option<Vec<u8>>,
   output: &Option<PathBuf>,
@@ -570,8 +569,8 @@ impl CoverageReporter for PrettyCoverageReporter {
 
 fn collect_coverages(
   files: FileFlags,
-) -> Result<Vec<ScriptCoverage>, AnyError> {
-  let mut coverages: Vec<ScriptCoverage> = Vec::new();
+) -> Result<Vec<cdp::ScriptCoverage>, AnyError> {
+  let mut coverages: Vec<cdp::ScriptCoverage> = Vec::new();
   let file_paths = FileCollector::new(|file_path| {
     file_path
       .extension()
@@ -590,7 +589,7 @@ fn collect_coverages(
 
   for file_path in file_paths {
     let json = fs::read_to_string(file_path.as_path())?;
-    let new_coverage: ScriptCoverage = serde_json::from_str(&json)?;
+    let new_coverage: cdp::ScriptCoverage = serde_json::from_str(&json)?;
     coverages.push(new_coverage);
   }
 
@@ -600,11 +599,11 @@ fn collect_coverages(
 }
 
 fn filter_coverages(
-  coverages: Vec<ScriptCoverage>,
+  coverages: Vec<cdp::ScriptCoverage>,
   include: Vec<String>,
   exclude: Vec<String>,
   npm_resolver: &dyn CliNpmResolver,
-) -> Vec<ScriptCoverage> {
+) -> Vec<cdp::ScriptCoverage> {
   let include: Vec<Regex> =
     include.iter().map(|e| Regex::new(e).unwrap()).collect();
 
@@ -629,7 +628,7 @@ fn filter_coverages(
 
       (include.is_empty() || is_included) && !is_excluded && !is_internal
     })
-    .collect::<Vec<ScriptCoverage>>()
+    .collect::<Vec<cdp::ScriptCoverage>>()
 }
 
 pub async fn cover_files(
diff --git a/cli/tools/coverage/range_tree.rs b/cli/tools/coverage/range_tree.rs
index c3bba79429..c873b2f8e0 100644
--- a/cli/tools/coverage/range_tree.rs
+++ b/cli/tools/coverage/range_tree.rs
@@ -3,7 +3,7 @@
 // Forked from https://github.com/demurgos/v8-coverage/tree/d0ca18da8740198681e0bc68971b0a6cdb11db3e/rust
 // Copyright 2021 Charles Samborski. All rights reserved. MIT license.
 
-use super::json_types::CoverageRange;
+use crate::cdp;
 use std::iter::Peekable;
 use typed_arena::Arena;
 
@@ -126,12 +126,12 @@ impl<'rt> RangeTree<'rt> {
     tree
   }
 
-  pub fn to_ranges(&self) -> Vec<CoverageRange> {
-    let mut ranges: Vec<CoverageRange> = Vec::new();
+  pub fn to_ranges(&self) -> Vec<cdp::CoverageRange> {
+    let mut ranges: Vec<cdp::CoverageRange> = Vec::new();
     let mut stack: Vec<(&RangeTree, i64)> = vec![(self, 0)];
     while let Some((cur, parent_count)) = stack.pop() {
       let count: i64 = parent_count + cur.delta;
-      ranges.push(CoverageRange {
+      ranges.push(cdp::CoverageRange {
         start_char_offset: cur.start,
         end_char_offset: cur.end,
         count,
@@ -145,7 +145,7 @@ impl<'rt> RangeTree<'rt> {
 
   pub fn from_sorted_ranges<'a>(
     rta: &'a RangeTreeArena<'a>,
-    ranges: &[CoverageRange],
+    ranges: &[cdp::CoverageRange],
   ) -> Option<&'a mut RangeTree<'a>> {
     Self::from_sorted_ranges_inner(
       rta,
@@ -157,7 +157,7 @@ impl<'rt> RangeTree<'rt> {
 
   fn from_sorted_ranges_inner<'a, 'b, 'c: 'b>(
     rta: &'a RangeTreeArena<'a>,
-    ranges: &'b mut Peekable<impl Iterator<Item = &'c CoverageRange>>,
+    ranges: &'b mut Peekable<impl Iterator<Item = &'c cdp::CoverageRange>>,
     parent_end: usize,
     parent_count: i64,
   ) -> Option<&'a mut RangeTree<'a>> {
@@ -190,7 +190,7 @@ mod tests {
   #[test]
   fn from_sorted_ranges_empty() {
     let rta = RangeTreeArena::new();
-    let inputs: Vec<CoverageRange> = vec![CoverageRange {
+    let inputs: Vec<cdp::CoverageRange> = vec![cdp::CoverageRange {
       start_char_offset: 0,
       end_char_offset: 9,
       count: 1,
diff --git a/cli/tools/jupyter/server.rs b/cli/tools/jupyter/server.rs
index 6175a33e9f..7a44fab64e 100644
--- a/cli/tools/jupyter/server.rs
+++ b/cli/tools/jupyter/server.rs
@@ -8,8 +8,8 @@ use std::collections::HashMap;
 use std::rc::Rc;
 use std::sync::Arc;
 
+use crate::cdp;
 use crate::tools::repl;
-use crate::tools::repl::cdp;
 use deno_core::error::AnyError;
 use deno_core::futures;
 use deno_core::serde_json;
@@ -382,7 +382,7 @@ impl JupyterServer {
       }
     };
 
-    let repl::cdp::EvaluateResponse {
+    let cdp::EvaluateResponse {
       result,
       exception_details,
     } = evaluate_response.value;
diff --git a/cli/tools/repl/editor.rs b/cli/tools/repl/editor.rs
index 52fad4759d..0bf2da7c8f 100644
--- a/cli/tools/repl/editor.rs
+++ b/cli/tools/repl/editor.rs
@@ -1,5 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
+use crate::cdp;
 use crate::colors;
 use deno_ast::swc::parser::error::SyntaxError;
 use deno_ast::swc::parser::token::BinOpToken;
@@ -37,7 +38,6 @@ use std::sync::atomic::AtomicBool;
 use std::sync::atomic::Ordering::Relaxed;
 use std::sync::Arc;
 
-use super::cdp;
 use super::channel::RustylineSyncMessageSender;
 use super::session::REPL_INTERNALS_NAME;
 
diff --git a/cli/tools/repl/mod.rs b/cli/tools/repl/mod.rs
index c25dc00c6c..3700911d62 100644
--- a/cli/tools/repl/mod.rs
+++ b/cli/tools/repl/mod.rs
@@ -14,7 +14,6 @@ use deno_runtime::permissions::PermissionsContainer;
 use rustyline::error::ReadlineError;
 use tokio::sync::mpsc::unbounded_channel;
 
-pub(crate) mod cdp;
 mod channel;
 mod editor;
 mod session;
diff --git a/cli/tools/repl/session.rs b/cli/tools/repl/session.rs
index df9a63772c..b46f73d5ac 100644
--- a/cli/tools/repl/session.rs
+++ b/cli/tools/repl/session.rs
@@ -5,6 +5,7 @@ use std::rc::Rc;
 use std::sync::Arc;
 
 use crate::args::CliOptions;
+use crate::cdp;
 use crate::colors;
 use crate::lsp::ReplLanguageServer;
 use crate::npm::CliNpmResolver;
@@ -48,8 +49,6 @@ use once_cell::sync::Lazy;
 use regex::Match;
 use regex::Regex;
 
-use super::cdp;
-
 fn comment_source_to_position_range(
   comment_start: SourcePos,
   m: &Match,
diff --git a/cli/tools/run/hmr/mod.rs b/cli/tools/run/hmr.rs
similarity index 84%
rename from cli/tools/run/hmr/mod.rs
rename to cli/tools/run/hmr.rs
index 1a57723070..fb6651fed9 100644
--- a/cli/tools/run/hmr/mod.rs
+++ b/cli/tools/run/hmr.rs
@@ -1,5 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
+use crate::cdp;
 use crate::emit::Emitter;
 use crate::util::file_watcher::WatcherCommunicator;
 use crate::util::file_watcher::WatcherRestartMode;
@@ -7,21 +8,45 @@ use deno_core::error::generic_error;
 use deno_core::error::AnyError;
 use deno_core::futures::StreamExt;
 use deno_core::serde_json::json;
+use deno_core::serde_json::Value;
 use deno_core::serde_json::{self};
 use deno_core::url::Url;
 use deno_core::LocalInspectorSession;
 use deno_runtime::colors;
+use serde::Deserialize;
 use std::collections::HashMap;
 use std::path::PathBuf;
 use std::sync::Arc;
 use tokio::select;
 
-mod json_types;
+// TODO(bartlomieju): the same thing is used in the REPL. Deduplicate.
+#[derive(Debug, Deserialize)]
+pub struct RpcNotification {
+  pub method: String,
+  pub params: Value,
+}
 
-use json_types::RpcNotification;
-use json_types::ScriptParsed;
-use json_types::SetScriptSourceReturnObject;
-use json_types::Status;
+fn explain(status: &cdp::Status) -> &'static str {
+  match status {
+    cdp::Status::Ok => "OK",
+    cdp::Status::CompileError => "compile error",
+    cdp::Status::BlockedByActiveGenerator => "blocked by active generator",
+    cdp::Status::BlockedByActiveFunction => "blocked by active function",
+    cdp::Status::BlockedByTopLevelEsModuleChange => {
+      "blocked by top-level ES module change"
+    }
+  }
+}
+
+fn should_retry(status: &cdp::Status) -> bool {
+  match status {
+    cdp::Status::Ok => false,
+    cdp::Status::CompileError => false,
+    cdp::Status::BlockedByActiveGenerator => true,
+    cdp::Status::BlockedByActiveFunction => true,
+    cdp::Status::BlockedByTopLevelEsModuleChange => false,
+  }
+}
 
 /// This structure is responsible for providing Hot Module Replacement
 /// functionality.
@@ -102,7 +127,7 @@ impl HmrRunner {
     &mut self,
     script_id: &str,
     source: &str,
-  ) -> Result<SetScriptSourceReturnObject, AnyError> {
+  ) -> Result<cdp::SetScriptSourceResponse, AnyError> {
     let result = self
       .session
       .post_message(
@@ -115,7 +140,7 @@ impl HmrRunner {
       )
       .await?;
 
-    Ok(serde_json::from_value::<SetScriptSourceReturnObject>(
+    Ok(serde_json::from_value::<cdp::SetScriptSourceResponse>(
       result,
     )?)
   }
@@ -162,7 +187,7 @@ impl HmrRunner {
             let description = exception.get("description").and_then(|d| d.as_str()).unwrap_or("undefined");
             break Err(generic_error(format!("{text} {description}")));
           } else if notification.method == "Debugger.scriptParsed" {
-            let params = serde_json::from_value::<ScriptParsed>(notification.params)?;
+            let params = serde_json::from_value::<cdp::ScriptParsed>(notification.params)?;
             if params.url.starts_with("file://") {
               let file_url = Url::parse(&params.url).unwrap();
               let file_path = file_url.to_file_path().unwrap();
@@ -217,14 +242,14 @@ impl HmrRunner {
             loop {
               let result = self.set_script_source(&id, source_code.as_str()).await?;
 
-              if matches!(result.status, Status::Ok) {
+              if matches!(result.status, cdp::Status::Ok) {
                 self.dispatch_hmr_event(module_url.as_str()).await?;
                 self.watcher_communicator.print(format!("Replaced changed module {}", module_url.as_str()));
                 break;
               }
 
-              self.watcher_communicator.print(format!("Failed to reload module {}: {}.", module_url, colors::gray(result.status.explain())));
-              if result.status.should_retry() && tries <= 2 {
+              self.watcher_communicator.print(format!("Failed to reload module {}: {}.", module_url, colors::gray(explain(&result.status))));
+              if should_retry(&result.status) && tries <= 2 {
                 tries += 1;
                 tokio::time::sleep(std::time::Duration::from_millis(100)).await;
                 continue;
diff --git a/cli/tools/run/hmr/json_types.rs b/cli/tools/run/hmr/json_types.rs
deleted file mode 100644
index 3ac80344b6..0000000000
--- a/cli/tools/run/hmr/json_types.rs
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-
-// TODO(bartlomieju): this code should be factored out to `cli/cdp.rs` along
-// with code in `cli/tools/repl/` and `cli/tools/coverage/`. These are all
-// Chrome Devtools Protocol message types.
-
-use deno_core::serde_json::Value;
-use serde::Deserialize;
-
-#[derive(Debug, Deserialize)]
-pub struct RpcNotification {
-  pub method: String,
-  pub params: Value,
-}
-
-#[derive(Debug, Deserialize)]
-pub struct SetScriptSourceReturnObject {
-  pub status: Status,
-}
-
-#[derive(Debug, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct ScriptParsed {
-  pub script_id: String,
-  pub url: String,
-}
-
-#[derive(Debug, Deserialize)]
-pub enum Status {
-  Ok,
-  CompileError,
-  BlockedByActiveGenerator,
-  BlockedByActiveFunction,
-  BlockedByTopLevelEsModuleChange,
-}
-
-impl Status {
-  pub(crate) fn explain(&self) -> &'static str {
-    match self {
-      Status::Ok => "OK",
-      Status::CompileError => "compile error",
-      Status::BlockedByActiveGenerator => "blocked by active generator",
-      Status::BlockedByActiveFunction => "blocked by active function",
-      Status::BlockedByTopLevelEsModuleChange => {
-        "blocked by top-level ES module change"
-      }
-    }
-  }
-
-  pub(crate) fn should_retry(&self) -> bool {
-    match self {
-      Status::Ok => false,
-      Status::CompileError => false,
-      Status::BlockedByActiveGenerator => true,
-      Status::BlockedByActiveFunction => true,
-      Status::BlockedByTopLevelEsModuleChange => false,
-    }
-  }
-}