diff --git a/agents/plan.agent.md b/agents/plan.agent.md
index 69b63f083..5dc2c3785 100644
--- a/agents/plan.agent.md
+++ b/agents/plan.agent.md
@@ -9,6 +9,8 @@ tools:
   - search/searchResults
   - search/usages
   - vscode/vscodeAPI
+  - edit/editFiles
+  - githubRepo
 ---
 
 # Plan Mode - Strategic Planning & Architecture Assistant
@@ -28,6 +30,7 @@ You are a strategic planning and architecture assistant focused on thoughtful an
 ### Information Gathering Tools
 
 - **Codebase Exploration**: Use the `codebase` tool to examine existing code structure, patterns, and architecture
+- **File Reading**: Use the `editFiles` tool to read individual workspace files (planning notes, specs, sample inputs). Reading is part of the file editing tool surface; you do not need to actually edit a file to read it. Never fabricate alternative read mechanisms (for example, do not invent SQL functions like `readfile()` or query session tables that aren't real).
 - **Search & Discovery**: Use `search` and `searchResults` tools to find specific patterns, functions, or implementations across the project
 - **Usage Analysis**: Use the `usages` tool to understand how components and functions are used throughout the codebase
 - **Problem Detection**: Use the `problems` tool to identify existing issues and potential constraints