diff --git a/src/core/repo_graph.rs b/src/core/repo_graph.rs
index 15b9584..22c025e 100644
--- a/src/core/repo_graph.rs
+++ b/src/core/repo_graph.rs
@@ -1,19 +1,19 @@
 use std::fs;
 use std::path::Path;
-use toml::Value as TomlValue;
 
 mod builder;
 mod generic;
 mod go;
 mod helpers;
 mod impact;
+mod manifest;
 mod node;
 mod python;
 mod rust;
 mod types;
 
 use builder::RepoGraphBuilder;
-use helpers::{display_path, normalize_path};
+use helpers::display_path;
 
 pub use impact::analyze_impact;
 pub use types::*;
@@ -66,18 +66,3 @@ fn detect_ignored_paths(root: &Path, builder: &mut RepoGraphBuilder) {
         }
     }
 }
-
-fn manifest_warning_category(message: &str) -> DetectionCategory {
-    if message.starts_with("Failed to read") {
-        DetectionCategory::UnreadableManifest
-    } else {
-        DetectionCategory::MalformedManifest
-    }
-}
-
-fn read_toml(path: &Path) -> Result<TomlValue, String> {
-    fs::read_to_string(path)
-        .map_err(|error| format!("Failed to read {}: {error}", normalize_path(path)))?
-        .parse::<TomlValue>()
-        .map_err(|error| format!("Failed to parse {}: {error}", normalize_path(path)))
-}
diff --git a/src/core/repo_graph/manifest.rs b/src/core/repo_graph/manifest.rs
new file mode 100644
index 0000000..1f53e02
--- /dev/null
+++ b/src/core/repo_graph/manifest.rs
@@ -0,0 +1,22 @@
+use std::fs;
+use std::path::Path;
+
+use toml::Value as TomlValue;
+
+use super::helpers::normalize_path;
+use super::types::DetectionCategory;
+
+pub(super) fn manifest_warning_category(message: &str) -> DetectionCategory {
+    if message.starts_with("Failed to read") {
+        DetectionCategory::UnreadableManifest
+    } else {
+        DetectionCategory::MalformedManifest
+    }
+}
+
+pub(super) fn read_toml(path: &Path) -> Result<TomlValue, String> {
+    fs::read_to_string(path)
+        .map_err(|error| format!("Failed to read {}: {error}", normalize_path(path)))?
+        .parse::<TomlValue>()
+        .map_err(|error| format!("Failed to parse {}: {error}", normalize_path(path)))
+}
diff --git a/src/core/repo_graph/node.rs b/src/core/repo_graph/node.rs
index 7c8c918..587aa42 100644
--- a/src/core/repo_graph/node.rs
+++ b/src/core/repo_graph/node.rs
@@ -3,8 +3,9 @@ use std::fs;
 use std::path::Path;
 
 use super::helpers::normalize_path;
+use super::manifest::manifest_warning_category;
 use super::types::*;
-use super::{manifest_warning_category, RepoGraphBuilder};
+use super::RepoGraphBuilder;
 
 pub(super) fn detect_node(root: &Path, builder: &mut RepoGraphBuilder) {
     let package_json = root.join("package.json");
diff --git a/src/core/repo_graph/python.rs b/src/core/repo_graph/python.rs
index 20b723c..892d863 100644
--- a/src/core/repo_graph/python.rs
+++ b/src/core/repo_graph/python.rs
@@ -2,8 +2,9 @@ use std::fs;
 use std::path::Path;
 use toml::Value as TomlValue;
 
+use super::manifest::{manifest_warning_category, read_toml};
 use super::types::*;
-use super::{manifest_warning_category, read_toml, RepoGraphBuilder};
+use super::RepoGraphBuilder;
 
 pub(super) fn detect_python(root: &Path, builder: &mut RepoGraphBuilder) {
     let mut python_project_detected = false;
diff --git a/src/core/repo_graph/rust.rs b/src/core/repo_graph/rust.rs
index 97e23f0..50e5dee 100644
--- a/src/core/repo_graph/rust.rs
+++ b/src/core/repo_graph/rust.rs
@@ -3,8 +3,9 @@ use std::path::{Path, PathBuf};
 use toml::Value as TomlValue;
 
 use super::helpers::{normalize_path, stable_id};
+use super::manifest::{manifest_warning_category, read_toml};
 use super::types::*;
-use super::{manifest_warning_category, read_toml, RepoGraphBuilder};
+use super::RepoGraphBuilder;
 
 struct CargoWorkspaceMember {
     relative_manifest: PathBuf,