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skills/command-development/examples/simple-commands.md

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+# Simple Command Examples
+
+Basic slash command patterns for common use cases.
+
+**Important:** All examples below are written as instructions FOR Claude (agent consumption), not messages TO users. Commands tell Claude what to do, not tell users what will happen.
+
+## Example 1: Code Review Command
+
+**File:** `.claude/commands/review.md`
+
+```markdown
+---
+description: Review code for quality and issues
+allowed-tools: Read, Bash(git:*)
+---
+
+Review the code in this repository for:
+
+1. **Code Quality:**
+   - Readability and maintainability
+   - Consistent style and formatting
+   - Appropriate abstraction levels
+
+2. **Potential Issues:**
+   - Logic errors or bugs
+   - Edge cases not handled
+   - Performance concerns
+
+3. **Best Practices:**
+   - Design patterns used correctly
+   - Error handling present
+   - Documentation adequate
+
+Provide specific feedback with file and line references.
+```
+
+**Usage:**
+```
+> /review
+```
+
+---
+
+## Example 2: Security Review Command
+
+**File:** `.claude/commands/security-review.md`
+
+```markdown
+---
+description: Review code for security vulnerabilities
+allowed-tools: Read, Grep
+model: sonnet
+---
+
+Perform comprehensive security review checking for:
+
+**Common Vulnerabilities:**
+- SQL injection risks
+- Cross-site scripting (XSS)
+- Authentication/authorization issues
+- Insecure data handling
+- Hardcoded secrets or credentials
+
+**Security Best Practices:**
+- Input validation present
+- Output encoding correct
+- Secure defaults used
+- Error messages safe
+- Logging appropriate (no sensitive data)
+
+For each issue found:
+- File and line number
+- Severity (Critical/High/Medium/Low)
+- Description of vulnerability
+- Recommended fix
+
+Prioritize issues by severity.
+```
+
+**Usage:**
+```
+> /security-review
+```
+
+---
+
+## Example 3: Test Command with File Argument
+
+**File:** `.claude/commands/test-file.md`
+
+```markdown
+---
+description: Run tests for specific file
+argument-hint: [test-file]
+allowed-tools: Bash(npm:*), Bash(jest:*)
+---
+
+Run tests for $1:
+
+Test execution: !`npm test $1`
+
+Analyze results:
+- Tests passed/failed
+- Code coverage
+- Performance issues
+- Flaky tests
+
+If failures found, suggest fixes based on error messages.
+```
+
+**Usage:**
+```
+> /test-file src/utils/helpers.test.ts
+```
+
+---
+
+## Example 4: Documentation Generator
+
+**File:** `.claude/commands/document.md`
+
+```markdown
+---
+description: Generate documentation for file
+argument-hint: [source-file]
+---
+
+Generate comprehensive documentation for @$1
+
+Include:
+
+**Overview:**
+- Purpose and responsibility
+- Main functionality
+- Dependencies
+
+**API Documentation:**
+- Function/method signatures
+- Parameter descriptions with types
+- Return values with types
+- Exceptions/errors thrown
+
+**Usage Examples:**
+- Basic usage
+- Common patterns
+- Edge cases
+
+**Implementation Notes:**
+- Algorithm complexity
+- Performance considerations
+- Known limitations
+
+Format as Markdown suitable for project documentation.
+```
+
+**Usage:**
+```
+> /document src/api/users.ts
+```
+
+---
+
+## Example 5: Git Status Summary
+
+**File:** `.claude/commands/git-status.md`
+
+```markdown
+---
+description: Summarize Git repository status
+allowed-tools: Bash(git:*)
+---
+
+Repository Status Summary:
+
+**Current Branch:** !`git branch --show-current`
+
+**Status:** !`git status --short`
+
+**Recent Commits:** !`git log --oneline -5`
+
+**Remote Status:** !`git fetch && git status -sb`
+
+Provide:
+- Summary of changes
+- Suggested next actions
+- Any warnings or issues
+```
+
+**Usage:**
+```
+> /git-status
+```
+
+---
+
+## Example 6: Deployment Command
+
+**File:** `.claude/commands/deploy.md`
+
+```markdown
+---
+description: Deploy to specified environment
+argument-hint: [environment] [version]
+allowed-tools: Bash(kubectl:*), Read
+---
+
+Deploy to $1 environment using version $2
+
+**Pre-deployment Checks:**
+1. Verify $1 configuration exists
+2. Check version $2 is valid
+3. Verify cluster accessibility: !`kubectl cluster-info`
+
+**Deployment Steps:**
+1. Update deployment manifest with version $2
+2. Apply configuration to $1
+3. Monitor rollout status
+4. Verify pod health
+5. Run smoke tests
+
+**Rollback Plan:**
+Document current version for rollback if issues occur.
+
+Proceed with deployment? (yes/no)
+```
+
+**Usage:**
+```
+> /deploy staging v1.2.3
+```
+
+---
+
+## Example 7: Comparison Command
+
+**File:** `.claude/commands/compare-files.md`
+
+```markdown
+---
+description: Compare two files
+argument-hint: [file1] [file2]
+---
+
+Compare @$1 with @$2
+
+**Analysis:**
+
+1. **Differences:**
+   - Lines added
+   - Lines removed
+   - Lines modified
+
+2. **Functional Changes:**
+   - Breaking changes
+   - New features
+   - Bug fixes
+   - Refactoring
+
+3. **Impact:**
+   - Affected components
+   - Required updates elsewhere
+   - Migration requirements
+
+4. **Recommendations:**
+   - Code review focus areas
+   - Testing requirements
+   - Documentation updates needed
+
+Present as structured comparison report.
+```
+
+**Usage:**
+```
+> /compare-files src/old-api.ts src/new-api.ts
+```
+
+---
+
+## Example 8: Quick Fix Command
+
+**File:** `.claude/commands/quick-fix.md`
+
+```markdown
+---
+description: Quick fix for common issues
+argument-hint: [issue-description]
+model: haiku
+---
+
+Quickly fix: $ARGUMENTS
+
+**Approach:**
+1. Identify the issue
+2. Find relevant code
+3. Propose fix
+4. Explain solution
+
+Focus on:
+- Simple, direct solution
+- Minimal changes
+- Following existing patterns
+- No breaking changes
+
+Provide code changes with file paths and line numbers.
+```
+
+**Usage:**
+```
+> /quick-fix button not responding to clicks
+> /quick-fix typo in error message
+```
+
+---
+
+## Example 9: Research Command
+
+**File:** `.claude/commands/research.md`
+
+```markdown
+---
+description: Research best practices for topic
+argument-hint: [topic]
+model: sonnet
+---
+
+Research best practices for: $ARGUMENTS
+
+**Coverage:**
+
+1. **Current State:**
+   - How we currently handle this
+   - Existing implementations
+
+2. **Industry Standards:**
+   - Common patterns
+   - Recommended approaches
+   - Tools and libraries
+
+3. **Comparison:**
+   - Our approach vs standards
+   - Gaps or improvements needed
+   - Migration considerations
+
+4. **Recommendations:**
+   - Concrete action items
+   - Priority and effort estimates
+   - Resources for implementation
+
+Provide actionable guidance based on research.
+```
+
+**Usage:**
+```
+> /research error handling in async operations
+> /research API authentication patterns
+```
+
+---
+
+## Example 10: Explain Code Command
+
+**File:** `.claude/commands/explain.md`
+
+```markdown
+---
+description: Explain how code works
+argument-hint: [file-or-function]
+---
+
+Explain @$1 in detail
+
+**Explanation Structure:**
+
+1. **Overview:**
+   - What it does
+   - Why it exists
+   - How it fits in system
+
+2. **Step-by-Step:**
+   - Line-by-line walkthrough
+   - Key algorithms or logic
+   - Important details
+
+3. **Inputs and Outputs:**
+   - Parameters and types
+   - Return values
+   - Side effects
+
+4. **Edge Cases:**
+   - Error handling
+   - Special cases
+   - Limitations
+
+5. **Usage Examples:**
+   - How to call it
+   - Common patterns
+   - Integration points
+
+Explain at level appropriate for junior engineer.
+```
+
+**Usage:**
+```
+> /explain src/utils/cache.ts
+> /explain AuthService.login
+```
+
+---
+
+## Key Patterns
+
+### Pattern 1: Read-Only Analysis
+
+```markdown
+---
+allowed-tools: Read, Grep
+---
+
+Analyze but don't modify...
+```
+
+**Use for:** Code review, documentation, analysis
+
+### Pattern 2: Git Operations
+
+```markdown
+---
+allowed-tools: Bash(git:*)
+---
+
+!`git status`
+Analyze and suggest...
+```
+
+**Use for:** Repository status, commit analysis
+
+### Pattern 3: Single Argument
+
+```markdown
+---
+argument-hint: [target]
+---
+
+Process $1...
+```
+
+**Use for:** File operations, targeted actions
+
+### Pattern 4: Multiple Arguments
+
+```markdown
+---
+argument-hint: [source] [target] [options]
+---
+
+Process $1 to $2 with $3...
+```
+
+**Use for:** Workflows, deployments, comparisons
+
+### Pattern 5: Fast Execution
+
+```markdown
+---
+model: haiku
+---
+
+Quick simple task...
+```
+
+**Use for:** Simple, repetitive commands
+
+### Pattern 6: File Comparison
+
+```markdown
+Compare @$1 with @$2...
+```
+
+**Use for:** Diff analysis, migration planning
+
+### Pattern 7: Context Gathering
+
+```markdown
+---
+allowed-tools: Bash(git:*), Read
+---
+
+Context: !`git status`
+Files: @file1 @file2
+
+Analyze...
+```
+
+**Use for:** Informed decision making
+
+## Tips for Writing Simple Commands
+
+1. **Start basic:** Single responsibility, clear purpose
+2. **Add complexity gradually:** Start without frontmatter
+3. **Test incrementally:** Verify each feature works
+4. **Use descriptive names:** Command name should indicate purpose
+5. **Document arguments:** Always use argument-hint
+6. **Provide examples:** Show usage in comments
+7. **Handle errors:** Consider missing arguments or files