Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/ash1794/vibe-engineering/agents-mdgit clone --depth 1 https://github.com/ash1794/vibe-engineeringWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00329 | $0.00329 |
| Opus 5 | $0.00164 | $0.00164 |
| Sonnet 5 | $0.00066 | $0.00066 |
| Haiku 4.5 | $0.00033 | $0.00033 |
Grade A, and why
vibe-engineering AGENTS.md 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 3d 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.
What it actually says
vibe-engineering
38 engineering discipline skills for AI-assisted development. Works with Claude Code and OpenAI Codex.
Skills
Skills live in plugins/vibe-engineering/skills/*/SKILL.md (also symlinked at .agents/skills/ for Codex discovery).
Each skill has YAML frontmatter with name, description, and user-invocable: true.
Invocation
- Claude Code:
/skill-nameor implicit matching via description - Codex:
$skill-nameor implicit matching via description
Tool Mapping
Skills reference Claude Code tool names. Codex equivalents are documented in references/codex-tools.md.
Project Conventions
- Skill names use the
vibe-prefix (e.g.,vibe-quality-loop) - Each skill directory contains exactly one
SKILL.mdfile - Skills are cross-project — no language or framework assumptions
- The
vibe-cliscript inscripts/provides CI/CD integration
Key Paths
| Path | Purpose |
|---|---|
.claude-plugin/marketplace.json |
Marketplace catalog (vibe-plugins) |
plugins/vibe-engineering/.claude-plugin/plugin.json |
Claude Code plugin manifest |
plugins/vibe-engineering/skills/ |
All 38 skill definitions |
.agents/skills/ |
Symlink for Codex discovery |
scripts/vibe-cli |
CI/CD enforcement CLI |
references/codex-tools.md |
Tool name mapping across platforms |
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.
- 3d ago First seen · 37 lines · 329 tokens per session scan A 9b9d86e855ad
vibe-engineering AGENTS.md is an instructions file published in the GitHub repository ash1794/vibe-engineering (10 stars, last pushed 3mo ago), licensed MIT. It adds 329 tokens to every session, about $0.0016 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 2026-08-31.
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