diff --git a/.gitignore b/.gitignore
index ead5d14..a9e1453 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,3 +21,5 @@ opensrc/
 # aria snapshots
 playwriter/src/aria-snapshots/
 playwriter/src/snapshots/
+playwriter/src/__snapshots__/ax-debug/
+gmail-oauth/
diff --git a/AGENTS.md b/AGENTS.md
index 76afa13..4e26d3b 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -610,3 +610,26 @@ const jsonSchema = toJSONSchema(mySchema, {
 ```
 
 github.md
+
+<!-- opensrc:start -->
+
+## Source Code Reference
+
+Source code for dependencies is available in `opensrc/` for deeper understanding of implementation details.
+
+See `opensrc/sources.json` for the list of available packages and their versions.
+
+Use this source code when you need to understand how a package works internally, not just its types/interface.
+
+### Fetching Additional Source Code
+
+To fetch source code for a package or repository you need to understand, run:
+
+```bash
+npx opensrc <package>           # npm package (e.g., npx opensrc zod)
+npx opensrc pypi:<package>      # Python package (e.g., npx opensrc pypi:requests)
+npx opensrc crates:<package>    # Rust crate (e.g., npx opensrc crates:serde)
+npx opensrc <owner>/<repo>      # GitHub repo (e.g., npx opensrc vercel/ai)
+```
+
+<!-- opensrc:end -->
\ No newline at end of file