Yuanban (元伴) — a human-AI collaboration protocol skill: a repeatable collaboration unit with a context brief (background / goal / constraints / acceptance), plan-first gate, milestone delivery, verification, handover anchors and experience reuse. Triggers

OpenCode plugin for skill creation — custom tools for validation, evaluation, description optimization, benchmarking, and review serving.

Framework-independent core of SurveyJS Survey Creator, an embeddable drag-and-drop form builder. Holds the editor model, design surface, toolbox, property grid, and logic/theme editors. Pair it with survey-creator-react, -angular, -vue, or -js to render.

YuanYin — an intent-clarification & ecosystem-entry skill for AI agents: when a user types a vague phrase or a single word, it identifies the intent, offers 2-4 candidate directions, deep-dives into goal/scope/output, then routes to the matching YottaMeta

Embeddable SurveyJS drag-and-drop form builder for JSON-based forms in React. Create dynamic surveys, polls, quizzes, and other forms, configure conditional logic and validation, and customize the editor UI.

The open agent skills ecosystem

Create SecretLintRawSource from content.

YuanXinMCP (元信MCP) — pre-install security scanning for Agent skills, packaged as a YottaMeta Agent Plugin.

Yuanshi — a skill for retrieving historical session / memory logs across AI agents: zero-dependency search and analysis of JSONL, JSON, SQLite and Markdown session & memory files (unified Record + field-alias normalization + config fallback), with full so

YuanCheng (元呈) — a universal result-presentation layer for AI agents: turn any AI output (JSON / Markdown / plain text) into a standard content object, pick a presentation form (conclusion card / table / checklist / prose / metric board / QA card / report

Yuancha — a zero-dependency security log analysis & detection engine for AI agents: parses auth/secure, Web access logs (common/combined), PowerShell script-block logs and Windows Event Log (Security/System, key=value / wevtutil text / XML exports) with t

Cross-session / cross-project workflow standard for all AI agents: read the state on start, keep .workflow at the project root, persist logs/tasks/decisions while working, and leave a self-contained handoff anchor on finish. The project root is the state

Gatsby plugin that automatically creates pages from React components in specified directories

Web skill references and the dedicated skill tool row

textlint AST node type definition.

The Gateway provider for the [AI SDK](https://ai-sdk.dev/docs) allows the use of a wide variety of AI models and providers.

lythoskill scaffolding tool — init and build thin-skill packages

Tlon/Urbit skill for OpenClaw agents

Model-facing skill loading tool for the DeepSeek Harness

page-creator for doreamonjs