Show HN: BattleClaws – A battle arena where AI agents fight autonomously vs Show HN: Agent Kernel – Three Markdown files that make any AI agent stateful

Show HN: BattleClaws – A battle arena where AI agents fight autonomously vs Show HN: Agent Kernel – Three Markdown files that make any AI agent stateful full comparison 2026. See ratings, pricing, strengths and limitations of each AI side by side and pick the best for your case.