diff --git a/README.md b/README.md
index 6179a4b..c014fa6 100644
--- a/README.md
+++ b/README.md
@@ -17,64 +17,9 @@ npm run play -- --act     # Run in Docker (simulates GitHub Actions)
 
 ## Testing with play.ts
 
-The `play.ts` script provides two ways to test the action:
-
-### Local Mode (Default)
 ```bash
-npm run play                        # Uses fixtures/play.txt
-npm run play fixtures/complex.txt   # Custom prompt file
+pnpm play                        # Uses fixtures/play.txt
 ```
 - Clones the scratch repository to `.temp`
 - Runs Claude Code directly on your machine
 - Fast iteration for development
-
-### Docker Mode (--act flag)
-```bash
-npm run play -- --act                        # Uses fixtures/play.txt
-npm run play fixtures/simple.txt -- --act    # Custom prompt file
-```
-- Builds fresh bundles with esbuild
-- Creates minimal distribution without node_modules
-- Runs in Docker container via `act`
-- Simulates GitHub Actions environment
-
-### Prompt Files
-
-Supports `.txt`, `.json`, and `.ts` files:
-```bash
-npm run play prompt.txt           # Plain text prompt
-npm run play config.json          # JSON configuration
-npm run play dynamic.ts           # TypeScript with default export
-```
-
-## Building
-
-```bash
-pnpm build        # Production build (bundles & removes node_modules)
-pnpm build:dev    # Development build (keeps node_modules)
-pnpm dev          # Watch mode
-```
-
-The action is bundled into `entry.cjs` with all dependencies included, eliminating runtime dependency on node_modules.
-
-## Environment Variables
-
-Create `.env` in `/action`:
-
-```bash
-ANTHROPIC_API_KEY=sk-ant-api03-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  # Claude API key
-```
-
-## Architecture
-
-- **entry.cjs**: Bundled action entry point (self-contained)
-- **agents/**: Agent implementations (Claude, etc.)
-- **utils/**: Utilities for subprocess, act, and formatting
-- **fixtures/**: Test prompt files
-
-## Why No node_modules?
-
-pnpm uses symlinks that cause "invalid symlink" errors when `act` copies the action to Docker. Our solution:
-1. Bundle everything into `entry.cjs` 
-2. Remove node_modules after building
-3. Create minimal `.act-dist` for Docker testing
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