MAESTRO: Add Context Management documentation to README.md

- Add comprehensive "Context Management" section with merge and transfer docs
- Add keyboard shortcuts (Cmd+Shift+M for merge, Cmd+Shift+A for send to agent)
- Include step-by-step instructions, tips, and use cases
- Document context grooming feature for cross-agent transfers

README.md

@@ -201,6 +201,8 @@ All these screenshots were captured in the them "Pedurple". For screenshots of o
 | New Agent | `Cmd+N` | `Ctrl+N` |
 | Kill Agent | `Cmd+Shift+Backspace` | `Ctrl+Shift+Backspace` |
 | Move Agent to Group | `Cmd+Shift+M` | `Ctrl+Shift+M` |
+| Merge Sessions | `Cmd+Shift+M` | `Ctrl+Shift+M` |
+| Send to Agent | `Cmd+Shift+A` | `Ctrl+Shift+A` |
 | Previous Agent | `Cmd+[` | `Ctrl+[` |
 | Next Agent | `Cmd+]` | `Ctrl+]` |
 | Jump to Agent (1-9, 0=10th) | `Opt+Cmd+NUMBER` | `Alt+Ctrl+NUMBER` |
@@ -618,6 +620,66 @@ But let's be real—getting to Level 11 is going to take some serious hacking. Y
 
 The achievement panel shows your current rank, progress to the next level, and total accumulated time. Each rank includes flavor text and information about a legendary conductor who exemplifies that level of mastery.
 
+## Context Management
+
+Context management lets you combine or transfer conversation history between sessions and agents, enabling powerful workflows where you can:
+
+- **Merge sessions** — Combine context from multiple conversations into one
+- **Transfer to other agents** — Send your context to a different AI agent (e.g., Claude Code → Codex)
+
+### Merging Sessions
+
+Combine context from multiple sessions or tabs into one:
+
+1. **Right-click** a tab → **"Merge With..."**, or
+2. Press `Cmd+Shift+M` (Mac) / `Ctrl+Shift+M` (Windows/Linux)
+3. Search for or select the target session/tab
+4. Review the merge preview showing estimated token count
+5. Click **"Merge Contexts"**
+
+The merged context creates a new tab in the target session with conversation history from both sources. Use this to consolidate related conversations or bring context from an older session into a current one.
+
+**What gets merged:**
+- Full conversation history (user messages and AI responses)
+- Token estimates are shown before merge to help you stay within context limits
+
+**Tips:**
+- You can merge tabs within the same session or across different sessions
+- Large merges (100k+ tokens) will show a warning but still proceed
+- Self-merge (same tab to itself) is prevented
+
+### Sending to Another Agent
+
+Transfer your context to a different AI agent:
+
+1. **Right-click** a tab → **"Send to Agent..."**, or
+2. Press `Cmd+Shift+A` (Mac) / `Ctrl+Shift+A` (Windows/Linux)
+3. Select the target agent (only available/installed agents are shown)
+4. Optionally enable **context grooming** to optimize the context for the target agent
+5. A new session opens with the transferred context
+
+**Context Grooming:**
+When transferring between different agent types, the context can be automatically "groomed" to:
+- Remove agent-specific artifacts and formatting
+- Condense verbose output while preserving key information
+- Optimize for the target agent's capabilities
+
+Grooming is enabled by default but can be skipped for faster transfers.
+
+**Use Cases:**
+- Start a task in Claude Code, then hand off to Codex for a different perspective
+- Transfer a debugging session to an agent with different tool access
+- Move context to an agent pointing at a different project directory
+
+### Keyboard Shortcuts
+
+| Action | macOS | Windows/Linux |
+|--------|-------|---------------|
+| Merge Sessions | `Cmd+Shift+M` | `Ctrl+Shift+M` |
+| Send to Agent | `Cmd+Shift+A` | `Ctrl+Shift+A` |
+
+These shortcuts are also available in the Command Palette (`Cmd+K` / `Ctrl+K`) as "Merge with another session" and "Send to another agent".
+
 ## Command Line Interface
 
 Maestro includes a CLI tool (`maestro-cli`) for managing agents and running playbooks from the command line, cron jobs, or CI/CD pipelines. The CLI requires Node.js (which you already have if you're using Claude Code).