Add /handoff command for session context recovery

.claude/commands/handoff.md

@@ -0,0 +1,42 @@
+---
+allowed-tools: Write, Read
+description: Create a handoff summary of current task and progress
+---
+
+Create a concise handoff document summarizing the current conversation for error recovery or session continuation.
+
+## Output Format
+
+Write to `~/.claude-handoffs/handoff.md` with this structure:
+
+```markdown
+# Handoff Summary
+**Created:** [current date/time]
+**Project:** [current working directory]
+
+## User's Goal
+[What the user wanted to accomplish - the original request/task]
+
+## Current Status
+[Where we are in the task - completed, in progress, blocked]
+
+## What Was Done
+[Key actions taken, files modified, commands run]
+
+## What Remains
+[Any incomplete items or next steps]
+
+## Key Context
+[Important details needed to continue - file paths, decisions made, etc.]
+```
+
+## Instructions
+
+1. Analyze the conversation history
+2. Extract the user's original goal/request
+3. Summarize progress and current state
+4. Note any important context needed to continue
+5. Write the handoff file
+6. Confirm to the user with the file path
+
+Keep it concise - focus on what someone needs to continue the work, not a full transcript.