🔧 Standardize agent invocation syntax: @agents- → @agent-

## Changes Made
- **Agent Syntax Standardization**: Updated all agent invocations from `@agents-` to `@agent-`
- **Consistency**: Applied change across all 14 documentation files and 1 source file
- **Examples Updated**: All agent invocation examples now use singular `@agent-` format
- **Pattern Recognition**: Updated references to trigger pattern documentation

## Files Updated (14 total)
### Documentation
- Docs/User-Guide/commands.md - Core command reference
- Docs/User-Guide/agents.md - Agent guide with all examples
- Docs/README.md - Quick reference updated
- Docs/Getting-Started/installation.md & quick-start.md - Setup instructions
- Docs/Developer-Guide/ - Technical architecture and testing docs
- Docs/Reference/ - All example files and troubleshooting

### Source Files
- SuperClaude/Agents/security-engineer.md - Agent context file

## Impact
✅ **Consistent Syntax**: All agent invocations now use `@agent-[name]` format
✅ **User Clarity**: Clear distinction from previous `@agents-` plural form
✅ **Documentation Alignment**: All examples and references updated consistently
✅ **Framework Standards**: Aligns with SuperClaude naming conventions

Examples now correctly show:
- `@agent-security "review authentication"`
- `@agent-python-expert "optimize code"`
- `@agent-frontend-architect "design components"`

Total replacements: 80+ instances across entire documentation

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Docs/Developer-Guide/README.md

@@ -51,7 +51,7 @@ SuperClaude is a collection of `.md` instruction files that Claude Code reads to
 **IMPORTANT**: SuperClaude is NOT a CLI tool or executable software. When you see `/sc:` commands in documentation, these are **context trigger patterns** you type in Claude Code conversations, not terminal commands.
 
 ### Agent Context Files
-Specialized instruction sets that provide domain expertise when activated by `@agents-[name]` or automatically by keywords.
+Specialized instruction sets that provide domain expertise when activated by `@agent-[name]` or automatically by keywords.
 
 ### Command Context Files
 Workflow patterns triggered by `/sc:[command]` **context patterns** (not CLI commands) that guide Claude Code through structured development tasks when you type them in Claude Code conversations.

Docs/Developer-Guide/technical-architecture.md

@@ -50,7 +50,7 @@ This guide documents how SuperClaude's Context-Oriented Configuration Framework
 | File Type | Purpose | Activation | Example |
 |-----------|---------|------------|---------|
 | **Commands** | Define workflow patterns | `/sc:[command]` (context trigger) | User types `/sc:implement` → reads `implement.md` |
-| **Agents** | Provide domain expertise | `@agents-[name]` or auto | `@agents-security` → reads `security-engineer.md` |
+| **Agents** | Provide domain expertise | `@agent-[name]` or auto | `@agent-security` → reads `security-engineer.md` |
 | **Modes** | Modify interaction style | Flags or triggers | `--brainstorm` → activates brainstorming mode |
 | **Core** | Set fundamental rules | Always active | `RULES.md` always loaded |
 
@@ -113,7 +113,7 @@ Core philosophy and approach
 
 ### Agent Activation Logic
 
-- **Manual**: User types `@agents-python-expert "task"`
+- **Manual**: User types `@agent-python-expert "task"`
 - **Automatic**: Keywords in request trigger agent loading
 - **Contextual**: File types or patterns activate relevant agents
 
@@ -231,7 +231,7 @@ User Input (in Claude Code): "/sc:analyze src/ --focus security"
 ### Context Priority
 
 1. **Explicit Commands**: `/sc:` commands take precedence
-2. **Manual Agents**: `@agents-` override auto-activation
+2. **Manual Agents**: `@agent-` override auto-activation
 3. **Flags**: Modify behavior of commands/agents
 4. **Auto-Activation**: Based on keywords/context
 5. **Default Behavior**: Standard Claude Code

Docs/Developer-Guide/testing-debugging.md

@@ -164,7 +164,7 @@ PYTHONPATH=/path/to/SuperClaude_Framework python3 -m setup install --components
 
 ### Issue: Agents Not Activating
 
-**Symptom**: `@agents-` invocations don't work in Claude Code
+**Symptom**: `@agent-` invocations don't work in Claude Code
 
 **Verification**:
 ```bash