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@@ -3,6 +3,8 @@
 .vscode-test/**
 .gitignore
 .git/**
+.env
+.env.*
 
 # Source files (use built files in dist/ instead)
 src/extension/**/*.ts
@@ -37,8 +39,6 @@ specs/**
 
 # Build tools
 node_modules/**
-# Include nano-spawn for cross-platform process spawning (Issue #79)
-!node_modules/nano-spawn/**
 *.vsix
 
 # Documentation
 
@@ -17,6 +17,8 @@ Auto-generated from all feature plans. Last updated: 2025-11-01
 - Workflow JSON files in `.vscode/workflows/` directory, Claude Code MCP configuration (user/project/enterprise scopes) (001-mcp-node)
 - TypeScript 5.3.0 (VSCode Extension Host), TypeScript/React 18.2 (Webview UI) + VSCode Extension API 1.80.0+, React 18.2, React Flow (visual canvas), Zustand (state management), existing MCP SDK client services (001-mcp-natural-language-mode)
 - Workflow JSON files in `.vscode/workflows/` directory (extends existing McpNodeData structure) (001-mcp-natural-language-mode)
+- TypeScript 5.3 (VSCode Extension Host), React 18.2 (Webview UI), @slack/web-api 7.x, Node.js http (OAuth callback server), VSCode Secret Storage (001-slack-workflow-sharing)
+- Workflow JSON files in `.vscode/workflows/` directory, Slack message attachments (workflow storage), VSCode Secret Storage (OAuth tokens) (001-slack-workflow-sharing)
 
 - TypeScript 5.x (VSCode Extension Host), React 18.x (Webview UI) (001-cc-wf-studio)
 
@@ -196,7 +198,6 @@ TypeScript 5.x (VSCode Extension Host), React 18.x (Webview UI): Follow standard
 ## Recent Changes
 - 001-mcp-natural-language-mode: Added TypeScript 5.3.0 (VSCode Extension Host), TypeScript/React 18.2 (Webview UI) + VSCode Extension API 1.80.0+, React 18.2, React Flow (visual canvas), Zustand (state management), existing MCP SDK client services
 - 001-mcp-node: Added TypeScript 5.3.0 (VSCode Extension Host), TypeScript/React 18.2 (Webview UI) + VSCode Extension API 1.80.0+, React 18.2, React Flow (visual canvas), Zustand (state management), child_process (Claude Code CLI execution)
-- 001-ai-workflow-refinement: Added TypeScript 5.3 (VSCode Extension Host), React 18.2 (Webview UI)
 
 
 <!-- MANUAL ADDITIONS START -->
 
@@ -96,6 +96,8 @@ All operations run locally within VSCode. **Note:** MCP Tool nodes may require n
 
 🔌 **MCP Tool Nodes** - Integrate Model Context Protocol (MCP) tools with automatic server discovery, tool browsing, dynamic parameter forms, and real-time validation
 
+💬 **Slack Workflow Sharing (β)** - Share workflows directly to Slack channels with rich preview cards and one-click import links for seamless team collaboration
+
 ## AI-Assisted Workflow Refinement
 
 ### Overview