What problem does it solve? Small but critical project facts—build flags, startup prerequisites, path conventions, environment variable rules—often get lost or repeated across sessions. This Skill records them into AGENTS.md, which is automatically loaded every session, so the AI always knows these one-line project constraints without being told again. ## Core Features & Use Cases - Fragment Knowledge Capture: Appends one-line facts (build prerequisites, command traps, path conventions, credential rules) to a fixed "Project Fragment Knowledge" section in AGENTS.md. - Strict Entry Criteria: Filters candidates by length, frequency, and stability, redirecting longer or task-specific content to other documentation skills to prevent file bloat. - Deduplication and Structure Control: Locates entries via a managed anchor comment, checks for duplicates before appending, and enforces fixed sections with a soft 150-line limit. - Use Case: After discovering that a project requires pnpm run gen before compiling, tell the AI to record it, and every future session will automatically know this constraint. ## Quick Start Tell the AI to record a project fact by saying something like "记一笔:编译前要先运行 pnpm run gen" and it will append the entry to the correct section of AGENTS.md.