diff --git a/.gitignore b/.gitignore
index 00673e8..e8041b7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,10 +9,13 @@ cache.json
 *.swp
 *.swo
 
-# Node (if build tooling is added later)
+# Node
 node_modules/
 dist/
 *.log
 
+# Build artifacts (source maps)
+main.js.map
+
 # Agent state
 .agent/
diff --git a/esbuild.config.mjs b/esbuild.config.mjs
index a41f12f..da556d7 100644
--- a/esbuild.config.mjs
+++ b/esbuild.config.mjs
@@ -18,7 +18,7 @@ const context = await esbuild.context({
   format: 'cjs',
   target: 'es2022',
   external,
-  sourcemap: production ? false : 'inline',
+  sourcemap: production ? 'linked' : 'inline',
   treeShaking: true,
   minify: production,
   outfile: 'main.js',