diff --git a/CLAUDE.md b/CLAUDE.md
index 523806cff..bb3fbbf85 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -22,6 +22,8 @@ npm run validate-redirects        # Validate .gitbook.yaml redirects
 
 **Always run `npm run format` before committing.** CI auto-commits formatting fixes on non-main branches, but formatting locally avoids noise.
 
+**Use semantic naming for commits, branches, and PRs.** Prefix commit messages with a type (`feat:`, `fix:`, `docs:`, `chore:`, `ci:`, `refactor:`, `test:`). Use the same style for branch names (e.g., `docs/update-sandbox-credentials`) and PR titles.
+
 Optional external tools used during `npm run generate` for code sample formatting: `ruff` (Python), `shfmt` (shell), `gofmt` (Go), `stree` from `syntax_tree` gem (Ruby).
 
 ## Architecture
diff --git a/docs/guides/developer-tools/sandbox-and-sample-data/ecobee-sample-data.md b/docs/guides/developer-tools/sandbox-and-sample-data/ecobee-sample-data.md
index 60e9ef49e..5b35c409e 100644
--- a/docs/guides/developer-tools/sandbox-and-sample-data/ecobee-sample-data.md
+++ b/docs/guides/developer-tools/sandbox-and-sample-data/ecobee-sample-data.md
@@ -2,6 +2,6 @@
 
 Use the following set of credentials to add virtual [ecobee thermostats](https://docs.seam.co/latest/device-and-system-integration-guides/ecobee-thermostats) to your Seam [sandbox workspace](../../core-concepts/workspaces/#sandbox-workspaces):
 
-| Email Address                                                   | Password |
-| --------------------------------------------------------------- | -------- |
-| jane@example.com or any email address in the example.com domain | 1234     |
+| Email Address    | Password |
+| ---------------- | -------- |
+| jane@example.com | 1234     |
diff --git a/docs/guides/developer-tools/sandbox-and-sample-data/ttlock-sample-data.md b/docs/guides/developer-tools/sandbox-and-sample-data/ttlock-sample-data.md
index 3dbd638d8..ac18ecc18 100644
--- a/docs/guides/developer-tools/sandbox-and-sample-data/ttlock-sample-data.md
+++ b/docs/guides/developer-tools/sandbox-and-sample-data/ttlock-sample-data.md
@@ -2,6 +2,6 @@
 
 Use the following set of credentials to add virtual [TTLock locks](https://docs.seam.co/latest/device-and-system-integration-guides/ttlock-locks) to your Seam [sandbox workspace](../../core-concepts/workspaces/#sandbox-workspaces):
 
-| Email Address                                                   | Password |
-| --------------------------------------------------------------- | -------- |
-| jane@example.com or any email address in the example.com domain | 1234     |
+| Email Address    | Password |
+| ---------------- | -------- |
+| jane@example.com | 1234     |