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The test_plan field was a gate from the old interactive web UI workflow where a human would approve a test plan before the LLM could write code. With autonomous coder agents, this gate is dead weight — coders sometimes obey the README's "wait for approval" instruction and produce no code. Removes: TestPlanStatus enum, ensure_test_plan_approved checks in fs/shell, set_test_plan MCP tool + handler, test_plan from story/bug front matter creation, test_plan validation in validate_story_dirs, and all related tests. Updates README to remove Step 2 (Test Planning) and renumber steps. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>