vhk: Skill for Claude Code

.agents/skills/vhk-evolve-loop/SKILL.md

vhk-evolve-loop is a skill for Claude Code, Codex from byh3071-cpu/vhk. It costs 29 tokens per session (298 once invoked), scanned A, original, MIT.

A VHK improvement workflow that turns recorded lessons and successes into proposed project rules. VHK is a command-line tool for tracking development work, verification, and project guidance.

In plain words
What is it for?
Use it to record lessons and wins, detect patterns, review suggested rule changes, apply approved changes, synchronize project files, or prepare a digest when automatic editing is unavailable.
Why use it?
It creates a path from repeated mistakes or failed checks to shared rules in RULES.md. It also distinguishes local learning from changes that should be shared with the team or treated as product defects.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is byh3071-cpu/vhk's own configuration. It tells Claude Code and Codex how to work on vhk itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything vhk configures →

Reuse

Borrowing it

Nothing to install: this file belongs to byh3071-cpu/vhk. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/byh3071-cpu/vhk/main/.agents/skills/vhk-evolve-loop/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/byh3071-cpu/vhk

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for vhk-evolve-loop

README.md
[![agentmods](https://agentmods.dev/badge/skills/byh3071-cpu/vhk/vhk-evolve-loop.svg)](https://agentmods.dev/skills/byh3071-cpu/vhk/vhk-evolve-loop)
Your own site
<a href="https://agentmods.dev/skills/byh3071-cpu/vhk/vhk-evolve-loop"><img src="https://agentmods.dev/badge/skills/byh3071-cpu/vhk/vhk-evolve-loop.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 298 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00029 $0.00298
Opus 5 $0.00015 $0.00149
Sonnet 5 $0.00006 $0.00060
Haiku 4.5 $0.00003 $0.00030

Measured 8d ago against content hash b43f5a3ff584, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

vhk-evolve-loop scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/vhk-evolve-loop/SKILL.md · 31 lines

What it actually says

VHK Evolve Loop

프로젝트 개선의 정본 흐름은 .vhk/memory.jsonvhk evolveRULES.md다. VHK CLI 자체의 결함은 vhk-dogfood-issue로 보낸다.

기록과 패턴

vhk learn "한 줄 교훈 — 원인 포함"
vhk win "한 줄 성공 — 유지할 이유 포함"
vhk pattern detect
vhk pattern list
vhk evolve suggest
vhk evolve list

팀 공유가 필요하면 프로젝트 기록 규약에 맞는 recurring-defects 문서나 ADR을 사용한다.

반영

  • 입력 가능한 세션과 사람 확인이 있으면 vhk evolve apply <id>vhk sync를 실행한다.
  • 입력할 수 없는 에이전트는 vhk evolve digest로 초안만 제안하며 자동 적용하지 않는다.
  • 같은 교훈이 둘 이상의 VHK 프로젝트에서 확인되면 공개 템플릿 개선 후보로 검토한다.

CLI 결함을 learn만으로 끝내거나, 로컬 memory만 바꾸고 공유할 RULES.md를 갱신한 것처럼 말하지 않는다.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 31 lines · 29 tokens per session scan A b43f5a3ff584

Subscribe to this mod's changes

vhk-evolve-loop is a skill published in the GitHub repository byh3071-cpu/vhk (12 stars, last pushed today), licensed MIT. It adds 29 tokens to every session and 298 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.