What problem does it solve? Research vaults containing papers, notes, and reading marks are hard to operate headlessly or from scripts. This Skill lets an agent use the Agentero CLI as a stable machine interface to list, import, inspect, and annotate papers without BYOA, ACP, or a chat runtime. ## Core Features & Use Cases - Vault and catalog operations: List and get papers, import by arXiv id, DOI, or URL, download assets, parse PAPER.md, tag papers, and export bibliography, all with structured --json output. - Layout and reading marks: Query layout regions (figures, tables) and reading marks for a given paper path, with defined error codes like mark_locate_failed and layout_index_missing for safe retries. - Progressive disclosure workflow: Follow an L0-L4 reading protocol (AGENTS.md, paper list, NOTES.md, layout/marks, PAPER.md, TeX source) to answer questions with minimal context. - Use Case: While scripting a literature review, ask the agent to import an arXiv paper, parse it, list its figures, and read its NOTES.md, all through deterministic CLI calls instead of manual file spelunking. ## Quick Start Ask the agent to run agentero paper list --json to show every paper in the current vault, then pick one to summarize.