Skill: classify tasks (simple vs complex vs exploratory) and route workflow

Current behavior

• Agent does not reliably distinguish between implement-now vs plan-first vs exploration-needed work, leading to premature execution or unclear next steps.

Expected behavior

• Create a skill that classifies tasks as: simple / complex / exploratory.
• Simple: implement once Description is final and task is ready to be picked.
• Complex: write a detailed implementation plan in the task description and wait for approval.
• Exploratory: do exploration, set state to "user is not clear what they want in this task", and propose questions + research to converge on a clear work item.

Notes

• Prefer deterministic rules + examples for the classifier.