focus

Focus — Single Agent Deep Reasoning Mode

Focus mode applies concentrated, deep reasoning to a single problem. No multi-agent coordination, no context switching — just one powerful agent thinking deeply.

When to Use

• Architecture decisions requiring careful trade-off analysis
• Complex debugging that needs systematic root cause analysis
• Code that requires understanding deep domain logic
• Decisions with significant long-term consequences

Workflow

Step 1: Understand the Problem

Use AskUserQuestion to clarify:

{
  "questions": [
    {
      "question": "What kind of deep analysis do you need?",
      "header": "Focus Area",
      "options": [
        {"label": "Architecture decision", "description": "Evaluate trade-offs and design a solution. Uses architect agent."},
        {"label": "Critical review", "description": "Find flaws and risks in existing design/code. Uses critic agent."},
        {"label": "Complex debugging", "description": "Systematic root cause analysis. Uses executor agent with Opus override."},
        {"label": "Security analysis", "description": "Deep security vulnerability assessment. Uses security-reviewer agent."}
      ],
      "multiSelect": false
    }
  ]
}

Step 2: Set Up Context

Before dispatching the focused agent:

1. Read all relevant files to build comprehensive context
2. Gather any related documentation, ADRs, or specifications
3. Identify constraints and requirements

Step 3: Dispatch Single Agent

Based on the focus area, dispatch ONE agent with Opus tier:

• Architecture decision → architect (Opus)
• Critical review → critic (Opus)
• Complex debugging → executor with Opus override
• Security analysis → security-reviewer (Opus)

Provide the agent with:

• Complete context (all relevant files already read)
• Clear problem statement
• Specific questions to answer or decisions to make
• Constraints and requirements

Step 4: Present Results

The focused agent's output should be presented as-is, without additional agent processing. The value of focus mode is the depth of a single agent's analysis, not a pipeline.