Create Implementation Plan

Create an implementation plan for: $ARGUMENTS

All plans must follow the rules in @.claude/rules/plan-governance.md (required tasks, branch/PR rules, git workflow) and @.claude/rules/plan.md (task creation specification, metadata schema).

Step 1: Parse Input

Determine the input type from $ARGUMENTS:

1. Ticket URL/ID -- Fetch ticket details with the appropriate CLI or MCP Server. Extract: title, description, acceptance criteria, priority, epic/parent. Note the ticket URL for later integration updates.
2. File path -- Read the file contents and use as context for the plan.
3. Free text -- Treat the entire argument as a text description of the work.

If no argument provided, prompt the user for input.

Step 2: Detect Plan Type