What is jf-writing-skill?

JF-Writing-Skill is a writing reference and assistance tool for researchers working in financial economics who want to match the style conventions of the Journal of Finance. The reference content was extracted sentence by sentence from 144 JF papers published between 2022 and 2025, covering asset pricing, corporate finance, banking, behavioral finance, and related subfields. The tool is structured as a Claude Code skill: typing trigger phrases like jf-skill, JF polish, or JF translate into a Claude conversation activates a guided workflow. Depending on what the user asks for, it loads one or more of five reference files covering sentence templates organized into 21 categories, a phrase bank of verb collocations and hedging expressions calibrated by confidence level, 33 paragraph structural patterns, meta-discourse templates for framing arguments, and an eight-step polishing workflow. It also supports Chinese-to-English translation with substitution of appropriate JF-style phrases. A notable addition in version 1.0.0 is a three-tier system for checking whether text is likely to be flagged as AI-generated. The first tier scans for specific phrase-level markers such as the word notably, vague hedging constructions, and connector words that detection tools have learned to associate with AI writing. The second tier asks structural questions about the text, such as whether the introduction follows a rigid four-part template or whether subsections have overly parallel formatting. The third tier computes quantitative metrics including sentence-length variation, connector density, and dominant template concentration. The design philosophy is that the reference is descriptive, not prescriptive: all patterns reflect what JF authors actually do in published papers, not a formula to follow mechanically. The skill notes that a real JF paper draws on only a small subset of the available patterns, and that using too many distinctive collocations at once can make text read as artificially generated. The repository was released on June 5, 2026. No license is stated in the README.