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+# Command Testing Strategies
+
+Comprehensive strategies for testing slash commands before deployment and distribution.
+
+## Overview
+
+Testing commands ensures they work correctly, handle edge cases, and provide good user experience. A systematic testing approach catches issues early and builds confidence in command reliability.
+
+## Testing Levels
+
+### Level 1: Syntax and Structure Validation
+
+**What to test:**
+- YAML frontmatter syntax
+- Markdown format
+- File location and naming
+
+**How to test:**
+
+```bash
+# Validate YAML frontmatter
+head -n 20 .claude/commands/my-command.md | grep -A 10 "^---"
+
+# Check for closing frontmatter marker
+head -n 20 .claude/commands/my-command.md | grep -c "^---" # Should be 2
+
+# Verify file has .md extension
+ls .claude/commands/*.md
+
+# Check file is in correct location
+test -f .claude/commands/my-command.md && echo "Found" || echo "Missing"
+```
+
+**Automated validation script:**
+
+```bash
+#!/bin/bash
+# validate-command.sh
+
+COMMAND_FILE="$1"
+
+if [ ! -f "$COMMAND_FILE" ]; then
+  echo "ERROR: File not found: $COMMAND_FILE"
+  exit 1
+fi
+
+# Check .md extension
+if [[ ! "$COMMAND_FILE" =~ \.md$ ]]; then
+  echo "ERROR: File must have .md extension"
+  exit 1
+fi
+
+# Validate YAML frontmatter if present
+if head -n 1 "$COMMAND_FILE" | grep -q "^---"; then
+  # Count frontmatter markers
+  MARKERS=$(head -n 50 "$COMMAND_FILE" | grep -c "^---")
+  if [ "$MARKERS" -ne 2 ]; then
+    echo "ERROR: Invalid YAML frontmatter (need exactly 2 '---' markers)"
+    exit 1
+  fi
+  echo "✓ YAML frontmatter syntax valid"
+fi
+
+# Check for empty file
+if [ ! -s "$COMMAND_FILE" ]; then
+  echo "ERROR: File is empty"
+  exit 1
+fi
+
+echo "✓ Command file structure valid"
+```
+
+### Level 2: Frontmatter Field Validation
+
+**What to test:**
+- Field types correct
+- Values in valid ranges
+- Required fields present (if any)
+
+**Validation script:**
+
+```bash
+#!/bin/bash
+# validate-frontmatter.sh
+
+COMMAND_FILE="$1"
+
+# Extract YAML frontmatter
+FRONTMATTER=$(sed -n '/^---$/,/^---$/p' "$COMMAND_FILE" | sed '1d;$d')
+
+if [ -z "$FRONTMATTER" ]; then
+  echo "No frontmatter to validate"
+  exit 0
+fi
+
+# Check 'model' field if present
+if echo "$FRONTMATTER" | grep -q "^model:"; then
+  MODEL=$(echo "$FRONTMATTER" | grep "^model:" | cut -d: -f2 | tr -d ' ')
+  if ! echo "sonnet opus haiku" | grep -qw "$MODEL"; then
+    echo "ERROR: Invalid model '$MODEL' (must be sonnet, opus, or haiku)"
+    exit 1
+  fi
+  echo "✓ Model field valid: $MODEL"
+fi
+
+# Check 'allowed-tools' field format
+if echo "$FRONTMATTER" | grep -q "^allowed-tools:"; then
+  echo "✓ allowed-tools field present"
+  # Could add more sophisticated validation here
+fi
+
+# Check 'description' length
+if echo "$FRONTMATTER" | grep -q "^description:"; then
+  DESC=$(echo "$FRONTMATTER" | grep "^description:" | cut -d: -f2-)
+  LENGTH=${#DESC}
+  if [ "$LENGTH" -gt 80 ]; then
+    echo "WARNING: Description length $LENGTH (recommend < 60 chars)"
+  else
+    echo "✓ Description length acceptable: $LENGTH chars"
+  fi
+fi
+
+echo "✓ Frontmatter fields valid"
+```
+
+### Level 3: Manual Command Invocation
+
+**What to test:**
+- Command appears in `/help`
+- Command executes without errors
+- Output is as expected
+
+**Test procedure:**
+
+```bash
+# 1. Start Claude Code
+claude --debug
+
+# 2. Check command appears in help
+> /help
+# Look for your command in the list
+
+# 3. Invoke command without arguments
+> /my-command
+# Check for reasonable error or behavior
+
+# 4. Invoke with valid arguments
+> /my-command arg1 arg2
+# Verify expected behavior
+
+# 5. Check debug logs
+tail -f ~/.claude/debug-logs/latest
+# Look for errors or warnings
+```
+
+### Level 4: Argument Testing
+
+**What to test:**
+- Positional arguments work ($1, $2, etc.)
+- $ARGUMENTS captures all arguments
+- Missing arguments handled gracefully
+- Invalid arguments detected
+
+**Test matrix:**
+
+| Test Case | Command | Expected Result |
+|-----------|---------|-----------------|
+| No args | `/cmd` | Graceful handling or useful message |
+| One arg | `/cmd arg1` | $1 substituted correctly |
+| Two args | `/cmd arg1 arg2` | $1 and $2 substituted |
+| Extra args | `/cmd a b c d` | All captured or extras ignored appropriately |
+| Special chars | `/cmd "arg with spaces"` | Quotes handled correctly |
+| Empty arg | `/cmd ""` | Empty string handled |
+
+**Test script:**
+
+```bash
+#!/bin/bash
+# test-command-arguments.sh
+
+COMMAND="$1"
+
+echo "Testing argument handling for /$COMMAND"
+echo
+
+echo "Test 1: No arguments"
+echo "  Command: /$COMMAND"
+echo "  Expected: [describe expected behavior]"
+echo "  Manual test required"
+echo
+
+echo "Test 2: Single argument"
+echo "  Command: /$COMMAND test-value"
+echo "  Expected: 'test-value' appears in output"
+echo "  Manual test required"
+echo
+
+echo "Test 3: Multiple arguments"
+echo "  Command: /$COMMAND arg1 arg2 arg3"
+echo "  Expected: All arguments used appropriately"
+echo "  Manual test required"
+echo
+
+echo "Test 4: Special characters"
+echo "  Command: /$COMMAND \"value with spaces\""
+echo "  Expected: Entire phrase captured"
+echo "  Manual test required"
+```
+
+### Level 5: File Reference Testing
+
+**What to test:**
+- @ syntax loads file contents
+- Non-existent files handled
+- Large files handled appropriately
+- Multiple file references work
+
+**Test procedure:**
+
+```bash
+# Create test files
+echo "Test content" > /tmp/test-file.txt
+echo "Second file" > /tmp/test-file-2.txt
+
+# Test single file reference
+> /my-command /tmp/test-file.txt
+# Verify file content is read
+
+# Test non-existent file
+> /my-command /tmp/nonexistent.txt
+# Verify graceful error handling
+
+# Test multiple files
+> /my-command /tmp/test-file.txt /tmp/test-file-2.txt
+# Verify both files processed
+
+# Test large file
+dd if=/dev/zero of=/tmp/large-file.bin bs=1M count=100
+> /my-command /tmp/large-file.bin
+# Verify reasonable behavior (may truncate or warn)
+
+# Cleanup
+rm /tmp/test-file*.txt /tmp/large-file.bin
+```
+
+### Level 6: Bash Execution Testing
+
+**What to test:**
+- !` commands execute correctly
+- Command output included in prompt
+- Command failures handled
+- Security: only allowed commands run
+
+**Test procedure:**
+
+```bash
+# Create test command with bash execution
+cat > .claude/commands/test-bash.md << 'EOF'
+---
+description: Test bash execution
+allowed-tools: Bash(echo:*), Bash(date:*)
+---
+
+Current date: !`date`
+Test output: !`echo "Hello from bash"`
+
+Analysis of output above...
+EOF
+
+# Test in Claude Code
+> /test-bash
+# Verify:
+# 1. Date appears correctly
+# 2. Echo output appears
+# 3. No errors in debug logs
+
+# Test with disallowed command (should fail or be blocked)
+cat > .claude/commands/test-forbidden.md << 'EOF'
+---
+description: Test forbidden command
+allowed-tools: Bash(echo:*)
+---
+
+Trying forbidden: !`ls -la /`
+EOF
+
+> /test-forbidden
+# Verify: Permission denied or appropriate error
+```
+
+### Level 7: Integration Testing
+
+**What to test:**
+- Commands work with other plugin components
+- Commands interact correctly with each other
+- State management works across invocations
+- Workflow commands execute in sequence
+
+**Test scenarios:**
+
+**Scenario 1: Command + Hook Integration**
+
+```bash
+# Setup: Command that triggers a hook
+# Test: Invoke command, verify hook executes
+
+# Command: .claude/commands/risky-operation.md
+# Hook: PreToolUse that validates the operation
+
+> /risky-operation
+# Verify: Hook executes and validates before command completes
+```
+
+**Scenario 2: Command Sequence**
+
+```bash
+# Setup: Multi-command workflow
+> /workflow-init
+# Verify: State file created
+
+> /workflow-step2
+# Verify: State file read, step 2 executes
+
+> /workflow-complete
+# Verify: State file cleaned up
+```
+
+**Scenario 3: Command + MCP Integration**
+
+```bash
+# Setup: Command uses MCP tools
+# Test: Verify MCP server accessible
+
+> /mcp-command
+# Verify:
+# 1. MCP server starts (if stdio)
+# 2. Tool calls succeed
+# 3. Results included in output
+```
+
+## Automated Testing Approaches
+
+### Command Test Suite
+
+Create a test suite script:
+
+```bash
+#!/bin/bash
+# test-commands.sh - Command test suite
+
+TEST_DIR=".claude/commands"
+FAILED_TESTS=0
+
+echo "Command Test Suite"
+echo "=================="
+echo
+
+for cmd_file in "$TEST_DIR"/*.md; do
+  cmd_name=$(basename "$cmd_file" .md)
+  echo "Testing: $cmd_name"
+
+  # Validate structure
+  if ./validate-command.sh "$cmd_file"; then
+    echo "  ✓ Structure valid"
+  else
+    echo "  ✗ Structure invalid"
+    ((FAILED_TESTS++))
+  fi
+
+  # Validate frontmatter
+  if ./validate-frontmatter.sh "$cmd_file"; then
+    echo "  ✓ Frontmatter valid"
+  else
+    echo "  ✗ Frontmatter invalid"
+    ((FAILED_TESTS++))
+  fi
+
+  echo
+done
+
+echo "=================="
+echo "Tests complete"
+echo "Failed: $FAILED_TESTS"
+
+exit $FAILED_TESTS
+```
+
+### Pre-Commit Hook
+
+Validate commands before committing:
+
+```bash
+#!/bin/bash
+# .git/hooks/pre-commit
+
+echo "Validating commands..."
+
+COMMANDS_CHANGED=$(git diff --cached --name-only | grep "\.claude/commands/.*\.md")
+
+if [ -z "$COMMANDS_CHANGED" ]; then
+  echo "No commands changed"
+  exit 0
+fi
+
+for cmd in $COMMANDS_CHANGED; do
+  echo "Checking: $cmd"
+
+  if ! ./scripts/validate-command.sh "$cmd"; then
+    echo "ERROR: Command validation failed: $cmd"
+    exit 1
+  fi
+done
+
+echo "✓ All commands valid"
+```
+
+### Continuous Testing
+
+Test commands in CI/CD:
+
+```yaml
+# .github/workflows/test-commands.yml
+name: Test Commands
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Validate command structure
+        run: |
+          for cmd in .claude/commands/*.md; do
+            echo "Testing: $cmd"
+            ./scripts/validate-command.sh "$cmd"
+          done
+
+      - name: Validate frontmatter
+        run: |
+          for cmd in .claude/commands/*.md; do
+            ./scripts/validate-frontmatter.sh "$cmd"
+          done
+
+      - name: Check for TODOs
+        run: |
+          if grep -r "TODO" .claude/commands/; then
+            echo "ERROR: TODOs found in commands"
+            exit 1
+          fi
+```
+
+## Edge Case Testing
+
+### Test Edge Cases
+
+**Empty arguments:**
+```bash
+> /cmd ""
+> /cmd '' ''
+```
+
+**Special characters:**
+```bash
+> /cmd "arg with spaces"
+> /cmd arg-with-dashes
+> /cmd arg_with_underscores
+> /cmd arg/with/slashes
+> /cmd 'arg with "quotes"'
+```
+
+**Long arguments:**
+```bash
+> /cmd $(python -c "print('a' * 10000)")
+```
+
+**Unusual file paths:**
+```bash
+> /cmd ./file
+> /cmd ../file
+> /cmd ~/file
+> /cmd "/path with spaces/file"
+```
+
+**Bash command edge cases:**
+```markdown
+# Commands that might fail
+!`exit 1`
+!`false`
+!`command-that-does-not-exist`
+
+# Commands with special output
+!`echo ""`
+!`cat /dev/null`
+!`yes | head -n 1000000`
+```
+
+## Performance Testing
+
+### Response Time Testing
+
+```bash
+#!/bin/bash
+# test-command-performance.sh
+
+COMMAND="$1"
+
+echo "Testing performance of /$COMMAND"
+echo
+
+for i in {1..5}; do
+  echo "Run $i:"
+  START=$(date +%s%N)
+
+  # Invoke command (manual step - record time)
+  echo "  Invoke: /$COMMAND"
+  echo "  Start time: $START"
+  echo "  (Record end time manually)"
+  echo
+done
+
+echo "Analyze results:"
+echo "  - Average response time"
+echo "  - Variance"
+echo "  - Acceptable threshold: < 3 seconds for fast commands"
+```
+
+### Resource Usage Testing
+
+```bash
+# Monitor Claude Code during command execution
+# In terminal 1:
+claude --debug
+
+# In terminal 2:
+watch -n 1 'ps aux | grep claude'
+
+# Execute command and observe:
+# - Memory usage
+# - CPU usage
+# - Process count
+```
+
+## User Experience Testing
+
+### Usability Checklist
+
+- [ ] Command name is intuitive
+- [ ] Description is clear in `/help`
+- [ ] Arguments are well-documented
+- [ ] Error messages are helpful
+- [ ] Output is formatted readably
+- [ ] Long-running commands show progress
+- [ ] Results are actionable
+- [ ] Edge cases have good UX
+
+### User Acceptance Testing
+
+Recruit testers:
+
+```markdown
+# Testing Guide for Beta Testers
+
+## Command: /my-new-command
+
+### Test Scenarios
+
+1. **Basic usage:**
+   - Run: `/my-new-command`
+   - Expected: [describe]
+   - Rate clarity: 1-5
+
+2. **With arguments:**
+   - Run: `/my-new-command arg1 arg2`
+   - Expected: [describe]
+   - Rate usefulness: 1-5
+
+3. **Error case:**
+   - Run: `/my-new-command invalid-input`
+   - Expected: Helpful error message
+   - Rate error message: 1-5
+
+### Feedback Questions
+
+1. Was the command easy to understand?
+2. Did the output meet your expectations?
+3. What would you change?
+4. Would you use this command regularly?
+```
+
+## Testing Checklist
+
+Before releasing a command:
+
+### Structure
+- [ ] File in correct location
+- [ ] Correct .md extension
+- [ ] Valid YAML frontmatter (if present)
+- [ ] Markdown syntax correct
+
+### Functionality
+- [ ] Command appears in `/help`
+- [ ] Description is clear
+- [ ] Command executes without errors
+- [ ] Arguments work as expected
+- [ ] File references work
+- [ ] Bash execution works (if used)
+
+### Edge Cases
+- [ ] Missing arguments handled
+- [ ] Invalid arguments detected
+- [ ] Non-existent files handled
+- [ ] Special characters work
+- [ ] Long inputs handled
+
+### Integration
+- [ ] Works with other commands
+- [ ] Works with hooks (if applicable)
+- [ ] Works with MCP (if applicable)
+- [ ] State management works
+
+### Quality
+- [ ] Performance acceptable
+- [ ] No security issues
+- [ ] Error messages helpful
+- [ ] Output formatted well
+- [ ] Documentation complete
+
+### Distribution
+- [ ] Tested by others
+- [ ] Feedback incorporated
+- [ ] README updated
+- [ ] Examples provided
+
+## Debugging Failed Tests
+
+### Common Issues and Solutions
+
+**Issue: Command not appearing in /help**
+
+```bash
+# Check file location
+ls -la .claude/commands/my-command.md
+
+# Check permissions
+chmod 644 .claude/commands/my-command.md
+
+# Check syntax
+head -n 20 .claude/commands/my-command.md
+
+# Restart Claude Code
+claude --debug
+```
+
+**Issue: Arguments not substituting**
+
+```bash
+# Verify syntax
+grep '\$1' .claude/commands/my-command.md
+grep '\$ARGUMENTS' .claude/commands/my-command.md
+
+# Test with simple command first
+echo "Test: \$1 and \$2" > .claude/commands/test-args.md
+```
+
+**Issue: Bash commands not executing**
+
+```bash
+# Check allowed-tools
+grep "allowed-tools" .claude/commands/my-command.md
+
+# Verify command syntax
+grep '!\`' .claude/commands/my-command.md
+
+# Test command manually
+date
+echo "test"
+```
+
+**Issue: File references not working**
+
+```bash
+# Check @ syntax
+grep '@' .claude/commands/my-command.md
+
+# Verify file exists
+ls -la /path/to/referenced/file
+
+# Check permissions
+chmod 644 /path/to/referenced/file
+```
+
+## Best Practices
+
+1. **Test early, test often**: Validate as you develop
+2. **Automate validation**: Use scripts for repeatable checks
+3. **Test edge cases**: Don't just test the happy path
+4. **Get feedback**: Have others test before wide release
+5. **Document tests**: Keep test scenarios for regression testing
+6. **Monitor in production**: Watch for issues after release
+7. **Iterate**: Improve based on real usage data