docs: add code-review-graph and VS MCP Server to tools list

README.md

@@ -1,6 +1,6 @@
 # Claude Code Facts
 
-> Last updated: 2026-04-01
+> Last updated: 2026-04-28
 
 A collection of interesting and useful facts, tips, tools, and guides for working with Claude and Claude Code.
 

claude-code-tools.md

@@ -19,6 +19,31 @@ Up-to-date documentation and code examples for any library, available directly i
 
 - **Note:** API key can be created for free after signing in at [context7.com](https://context7.com/)
 
+### code-review-graph
+
+Builds a Tree-sitter–based structural graph of the codebase (callers, callees, imports, tests, blast radius) and exposes it as an MCP server. Lets Claude scope reviews to the minimal affected set instead of scanning whole projects — the project README reports ~8x fewer tokens on code reviews and up to ~49x on daily tasks.
+
+- **Repository:** <https://github.com/tirth8205/code-review-graph>
+- **Setup:**
+
+  ```bash
+  pip install code-review-graph
+  code-review-graph install   # auto-configures Claude Code / Cursor / Windsurf
+  ```
+
+  Then restart the editor and build the graph for the current repo via the `build_or_update_graph_tool`.
+
+- **Languages:** 23+ including Python, TypeScript/JavaScript, Go, Rust, Java, plus Jupyter notebooks.
+- **Key tools:** `detect_changes`, `get_review_context`, `get_impact_radius`, `get_affected_flows`, `query_graph`, `semantic_search_nodes`, `get_architecture_overview`.
+
+### VS MCP Server (Visual Studio)
+
+Visual Studio 2022/2026 extension that exposes the IDE itself over MCP — solutions/projects, document I/O, editor navigation, build status, debugging (breakpoints, stepping, variable inspection), error list, and window control. Useful when working on .NET/C++ solutions where Claude Code needs to drive the actual Visual Studio session rather than just edit files on disk.
+
+- **Marketplace:** <https://marketplace.visualstudio.com/items?itemName=CodingWithCalvin.VS-MCPServer>
+- **Setup:** Install from **Extensions → Manage Extensions** in Visual Studio (search "MCP Server"), or download the `.vsix`. Start via **Tools → MCP Server → Start Server** (defaults to `http://localhost:5050`).
+- **Note:** This is a *Visual Studio* extension, not VS Code — despite the `marketplace.visualstudio.com` URL, which hosts both.
+
 ## Skills (Slash Commands)
 
 Skills are a different extension mechanism from MCPs. They are prompt-based extensions invoked via `/skill-name` commands directly within Claude Code — no external server required.