diff --git a/packages/coding-agent/README.md b/packages/coding-agent/README.md
index 2d31256b..cf748917 100644
--- a/packages/coding-agent/README.md
+++ b/packages/coding-agent/README.md
@@ -105,24 +105,18 @@ Pi uses the [Kitty keyboard protocol](https://sw.kovidgoyal.net/kitty/keyboard-p
 
 ### Authentication
 
-**Subscriptions:** Use `/login` in interactive mode to authenticate with your existing plan:
+**Subscriptions:** Use `/login` to authenticate with Claude Pro/Max, ChatGPT Plus/Pro, GitHub Copilot, or Google Gemini (free).
 
-- Claude Pro/Max (Anthropic)
-- ChatGPT Plus/Pro (OpenAI Codex)
-- GitHub Copilot
-- Google Gemini CLI (free)
-- Google Antigravity (free)
-
-**API keys:** Set via environment variable or `~/.pi/agent/auth.json`:
+**API keys:** Set via environment variable:
 
 ```bash
 export ANTHROPIC_API_KEY=sk-ant-...
 pi
 ```
 
-Supported: `ANTHROPIC_API_KEY`, `OPENAI_API_KEY`, `AZURE_OPENAI_API_KEY`, `GEMINI_API_KEY`, `MISTRAL_API_KEY`, `GROQ_API_KEY`, `CEREBRAS_API_KEY`, `XAI_API_KEY`, `OPENROUTER_API_KEY`, `AI_GATEWAY_API_KEY`, `ZAI_API_KEY`, `MINIMAX_API_KEY`, `OPENCODE_API_KEY`, `AWS_PROFILE`.
+Supported: `ANTHROPIC_API_KEY`, `OPENAI_API_KEY`, `GEMINI_API_KEY`, `MISTRAL_API_KEY`, `GROQ_API_KEY`, `CEREBRAS_API_KEY`, `XAI_API_KEY`, `OPENROUTER_API_KEY`, `AWS_PROFILE`, and [more](docs/authentication.md).
 
-See [docs/authentication.md](docs/authentication.md) for details.
+See [docs/authentication.md](docs/authentication.md) for auth file format, Azure, Bedrock, and Vertex setup.
 
 ### Quick Start