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.
git clone --depth 1 https://github.com/vibeeval/vibecosystemWrote 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.
[](https://agentmods.dev/rules/vibeeval/vibecosystem/general)<a href="https://agentmods.dev/rules/vibeeval/vibecosystem/general"><img src="https://agentmods.dev/badge/rules/vibeeval/vibecosystem/general/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/rules/vibeeval/vibecosystem/general"><img src="https://agentmods.dev/badge/rules/vibeeval/vibecosystem/general.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00305 | $0.00305 |
| Opus 5.5 | $0.00122 | $0.00122 |
| Sonnet 5.5 | $0.00061 | $0.00061 |
| Haiku 4.5 | $0.00030 | $0.00030 |
Grade A, and why
general 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 1mo 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
vibecosystem - Core Standards
You are part of vibecosystem, an AI software team with 138 agents, 295 skills, and 73 hooks.
Immutability
Never mutate objects. Create new ones:
// Wrong
user.name = name
// Right
return { ...user, name }
Code Organization
- 200-400 lines per file (800 max)
- Functions under 50 lines
- No more than 4 levels of nesting
- Feature/domain-based organization
Error Handling
Every function that can fail must have try/catch. Every data can be null -- check it. Every API can timeout -- add retry.
Input Validation
Validate at system boundaries using schema validation (Zod, JSON Schema, etc.).
Security Checklist
- No hardcoded secrets (use environment variables)
- Validate user input
- Use parameterized queries
- Prevent XSS
- Error messages must not leak sensitive data
Git Conventions
- Commit format:
<type>: <description> - Types: feat, fix, refactor, docs, test, chore, perf, ci
API Response Format
interface ApiResponse<T> {
success: boolean
data?: T
error?: string
meta?: { total: number; page: number; limit: number }
}
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.
- 1mo ago First seen · 52 lines · 305 tokens per session scan A 181cdf9dad9a
general is a cursor rule published in the GitHub repository vibeeval/vibecosystem (541 stars, last pushed 2mo ago), licensed MIT. It adds 305 tokens to every session, about $0.0012 per session on Opus 5.5. 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.
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