YuanZao (元造) — a zero-dependency Python 3.8+ skill scaffold generator: validates naming (yotta- prefix / lowercase-hyphen / YuanX Chinese name / non-overwrite), renders a full release-compliant scaffold from an embedded template (SKILL.md, bilingual four-

YuanGe (元阁) - orchestration routing, inventory, and one-command installer for the YottaMeta skill family (zero dependencies, Node.js only).

Yuandun (元盾) — cross-agent dangerous tool-call guardrail: a deterministic rule engine + pluggable intent verifier (model-agnostic) that evaluates exec/write/edit/read/run/shell calls and provides audit logs. Triggers when an agent is about to run a high-r

Yuan'an (元安) — detects malicious patterns in AI skills (13 detector classes) and system security baselines (Windows/Linux); purely read-only, zero-dependency and disciplined. Triggers on security audit / skill security check / malicious detection / supply

Yuanshen (元审) — the security review protocol before installing any skill: a four-phase checklist (source → code → permissions → risk) + a lightweight checker, with deep-scan handoff to yotta-security-audit. Triggers before installing/evaluating any skill

Yuanjian — a zero-dependency static malware triage engine for AI agents: MD5/SHA1/SHA256 hashes, magic-type detection, Shannon entropy, printable strings (ASCII/UTF-16LE) with URL/domain/IP/email/command/path/base64 classification, and PE/ELF header parsi

Binary Mac OS X Plist (property list) creator.

Yuanyi (元忆) — boundary-aware, file-based memory for AI agents. File-based, zero-dependency, diff/rollback-able; FACT/PREF/BOUND/COMMIT types (public shared / private isolated), user-level + project-level storage; v0.12 reliability baseline (init guard, tr

Yuanyi (元忆) — boundary-aware, file-based memory for AI agents, packaged as a YottaMeta Agent Plugin.

YuanXin (元信) — the pre-install security verifier for Agent skills: deterministic static scan (prompt injection + malicious patterns + SKILL.md integrity + permissions) that outputs a verdict and audited badges. Triggers before installing/evaluating any sk

YuanGe (元阁) — orchestration and routing for the YottaMeta skill family, packaged as a YottaMeta Agent Plugin.

YuanXinMCP (元信MCP) - the pre-install security scanner for Agent skills, exposed as a stdio MCP server: scan_skill (dir/package -> verdict + findings), generate_badge (audited badge), gate_check (CI gate), get_report (JSON/Markdown). Local offline static s

YuanShou (元守) — a generic zero-dependency Python 3.8+ pre-publish release guard (defaults to YottaMeta ownership, customizable to any publishing organization): check (full / github / self modes, optional yotta-security-audit / yotta-vetter / yotta-verify

Lightweight QR code generator for stylish QR codes

Yuanxi — a cross-agent learning-loop skill: captures mistakes, corrections and insights as reusable .learnings/ entries for later sessions and skill improvement. Triggers on command failure / user correction / a better approach / a missing capability / an

YuanCheng (元呈) — a universal result-presentation layer for AI agents, packaged as a YottaMeta Agent Plugin.

YuanCe (元测) — a disciplined, authorization-first AI security-testing methodology: a four-stage (recon → discovery → verification → reporting) web security testing workflow on authorized targets (self-owned assets / SRC bug bounty / CTF / local labs), with

Pair-style code quality reviewer: twelve book-grounded decay risks (R1-R6, T1-T6) plus release-safety and first-paint UX checks; Iron Law findings (Symptom -> Source -> Consequence -> Remedy) and 0-100 Health Score.

Config file creator for secretlint.

YuanSafe (元安全) — a defensive AI-agent hardening skill: static configuration-facing hardening scan of an agent's own runtime (installed skills, MCP servers, tool descriptions, permissions and data surfaces) across three domains — prompt-injection defense /