docs: add module-level documentation and improve doc comments

1 files changed, 6 insertions, 0 deletions

diff --git a/mingling_pathf/src/error.rs b/mingling_pathf/src/error.rs
index 513ec23..70a8f6e 100644
--- a/mingling_pathf/src/error.rs
+++ b/mingling_pathf/src/error.rs
@@ -1,3 +1,9 @@
+//! Errors that can occur during the pathfinding process for Rust module resolution.
+//!
+//! This module defines all possible failure modes when traversing the module graph
+//! of a Rust project, including I/O failures, missing modules, invalid path
+//! attributes, missing entry points, and syntax parsing errors.
+
 use std::fmt;
 use std::path::PathBuf;