Plan technical review

Plan file: $ARGUMENTS (if empty, ask the user for the plan path or pick the most recent file under docs/plan/).

Run the following agents in parallel to conduct a comprehensive technical review of the plan at $ARGUMENTS. Pass the plan path to each agent:

• @code-simplicity-review-agent: Review the plan for simplicity and clarity. Ensure the implementation is as straightforward as possible while still meeting all requirements.
• @vgv-review-agent: Review the plan for adherence to Very Good Engineering practices and project conventions. Ensure the implementation follows our established patterns and conventions.
• @plan-splitting-agent: Assess plan scope and recommend splitting into multiple PRs if the plan is too large for a single reviewable PR.

After all agents complete, if the plan-splitting-agent recommends a split: