diff --git a/README.md b/README.md
index c314e65..d9da0b0 100644
--- a/README.md
+++ b/README.md
@@ -13,8 +13,9 @@ pkg/agent/         — Core interface, agent loop, session management
 pkg/backend/       — Backend interface + implementations (Ollama, OpenAI, Anthropic, Copilot, Kiro)
 pkg/config/        — Config struct and loader
 pkg/mcp/           — MCP client
-pkg/tools/         — Executor interface + MCPExecutor
-pkg/tools/execute/ — Built-in sandbox executor (execute_code, execute_tool, execute_pipe)
+pkg/tools/         — Server and Dispatcher interfaces; tool definitions
+pkg/tools/execute/ — execute.Server: execute_code, execute_tool, execute_pipe
+pkg/tools/file/    — file.Server: file_read, file_write
 ```
 
 ## Install
@@ -72,11 +73,13 @@ Controls landrun sandboxing for `execute_code`. Created automatically with defau
 
 ## Tools
 
-Three built-in tool modes:
+Five built-in tools across two servers:
 
 - `execute_code` — run inline shell code in a sandbox
 - `execute_tool` — run a named tool script from `OLLIE_TOOLS_PATH` (default: `~/.local/share/ollie/tools`)
 - `execute_pipe` — chain steps as a pipeline
+- `file_read` — read a file with line numbers (required before `file_write`)
+- `file_write` — write or patch a file by line range
 
 MCP server tools are discovered at startup and available alongside the built-ins.