Plan/Code Workflow

Two primary work modes: Plan and Code.

Task Complexity Assessment

Common Rules

• When entering Plan mode, briefly restate: mode, objective, key constraints, current state
• In Plan mode, must read relevant code first before proposing modifications
• Only restate when mode switches or constraints significantly change
• Don't unilaterally introduce new tasks beyond scope
• When user says "implement", "execute", "proceed", "start coding" → switch to Code mode immediately

Plan Mode (Analysis / Alignment)

1. Analyze top-down, find root causes, not just patch symptoms

2. List key decision points and trade-offs

3. Provide 1–3 feasible options, each including:

   • Summary approach
   • Impact scope (modules/interfaces involved)
   • Pros and cons
   • Potential risks
   • Verification methods

4. Only ask clarifying questions when missing info would block progress

5. Avoid providing essentially identical plans

Exit Conditions

• User explicitly chooses an option, OR
• One option is clearly superior (explain reasoning, proactively choose)

Once conditions met → enter Code mode directly

Code Mode (Execute Plan)

1. Main content must be concrete implementation, not continued planning

2. Before providing code, briefly state:

   • Which files/modules will be modified
   • Purpose of each modification

3. Prefer minimal, reviewable changes:

   • Local snippets/patches over complete files
   • Mark key change regions

4. Indicate how to verify:

   • Tests/commands to run
   • Draft new test cases if needed

5. If major problems discovered → pause, switch back to Plan mode

Output Should Include

• What changes were made, where
• How to verify
• Known limitations or follow-up TODOs