diff --git a/AGENTS.md b/AGENTS.md
index 612771f..ff95754 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -10,12 +10,14 @@ Rust CLI (`amendable`) for the Amendable API.
 - Git password is the access token. There is no SSH.
 - Command name is `amendable`. Package name is `amendable-cli`.
 
-Staging is a config override, not a different command set:
+Staging is a config override for Amendable developers, not a different command set:
 
 - `amendable --staging` / `amendable login --staging`
 - `AMENDABLE_API_URL=https://stage.api.amendable.io`
 - `AMENDABLE_APP_URL=https://stage.amendable.io`
 
+Do not document those URL env vars in customer docs (`../amendable-docs`). Hardcode production hosts there.
+
 Config file: `~/.config/amendable/config.toml` (mode `0600`).
 
 Authoritative API behavior lives in `../amendable-web`. Customer docs live in `../amendable-docs`. If the CLI disagrees with the API, fix the CLI. If the docs disagree with the CLI, fix the docs.
diff --git a/README.md b/README.md
index f3fb3ec..389579c 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ amendable repo create hello
 amendable repo clone hello
 ```
 
-Defaults are production (`https://api.amendable.io`). For staging:
+Defaults are production (`https://api.amendable.io`). Change hosts only when developing Amendable against the staging server:
 
 ```bash
 amendable login --staging
@@ -40,7 +40,7 @@ token = "..."
 username = "yourname"
 ```
 
-Override with `AMENDABLE_TOKEN`, `AMENDABLE_API_URL`, `AMENDABLE_APP_URL`, `AMENDABLE_USERNAME`, or `AMENDABLE_CONFIG`.
+Override with `AMENDABLE_TOKEN`, `AMENDABLE_USERNAME`, or `AMENDABLE_CONFIG`.
 
 ## Tests