arg-action-chain

Use this skill when the user wants to create, refine, review, or convert an agent task or existing skill into an ARG Action Chain / ARG 行动链路. This skill is especially relevant for recurring automations, multi-step agent jobs, data pipelines, report generation, MCP workflows, or tasks where agent drift, hallucinated fields, self-verification, premature planning, or uncontrolled long-context execution are risks. Trigger when the user mentions ARG, Step Contract, clue card, validation gate, progressive disclosure, reducing agent drift/self-deception, converting a normal skill into arg-xxx, or making a task chain more bounded and verifiable.

Only use this skill when the user explicitly invokes /arg-hacker-news-topstories or clearly asks to run this ARG chain. Queries the official public Hacker News API top stories endpoint, normalizes results to JSON, validates them, and renders a Markdown report.