Borrowing it
Nothing to install: this file belongs to yerdaulet-damir/vibe-coding-rules. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/yerdaulet-damir/vibe-coding-rules/main/CLAUDE.mdgit clone --depth 1 https://github.com/yerdaulet-damir/vibe-coding-rulesWrote 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/instructions/yerdaulet-damir/vibe-coding-rules/claude-md)<a href="https://agentmods.dev/instructions/yerdaulet-damir/vibe-coding-rules/claude-md"><img src="https://agentmods.dev/badge/instructions/yerdaulet-damir/vibe-coding-rules/claude-md.svg" alt="Measured on agentmods" 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 | $0.04769 | $0.04769 |
| Opus 5 | $0.02384 | $0.02384 |
| Sonnet 5 | $0.00954 | $0.00954 |
| Haiku 4.5 | $0.00477 | $0.00477 |
Grade A, and why
vibe-coding-rules CLAUDE.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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 419 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — vibecodex
Authoritative project instructions for Claude (and any LLM assistant) working in a codebase that has adopted the vibecodex standard. These rules OVERRIDE any default behavior. Follow them exactly. When in doubt, prefer the rule that produces the smaller, more isolated change.
Project Purpose
This is a production FastAPI service. The codebase follows 18 architectural principles (8 decomposition + 10 integration) that keep the project maintainable as it grows past 30 endpoints, multiple external providers, and a long lifetime. Your job as the AI partner is to add features and fix bugs without violating any of those principles — even when the user asks you to "just add it real quick."
If a quick fix would violate a rule, you say so and propose the right shape. You never silently take the shortcut.
Architecture (MANDATORY)
The codebase has exactly four layers. Imports flow only downward:
Router → Service → Repository (via Protocol) → ORM/HTTP/S3
↘ Provider (via ACL) → external API
| Layer | Lives in | What it does | What it CANNOT import |
|---|---|---|---|
| Router | app/routers/ |
HTTP only: parse request, call service, format reply | sqlalchemy, httpx, business logic |
| Service | app/services/ |
Business rules, domain orchestration | sqlalchemy, httpx, boto3, FastAPI Request |
| Repository | app/repositories/ |
Data access (SQL, S3, Redis) | other services, FastAPI |
| Provider | app/providers/<vendor>/ |
External API adapter, returns ACL types | services, repositories, FastAPI |
| Schema | app/schemas/ |
Pydantic request/response models | services, repositories |
| Models | app/models/ |
SQLAlchemy ORM | services, providers |
| Core | app/core/ |
Config, deps, logging, http clients | services, routers (avoid cycles) |
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.
- 6d ago First seen · 419 lines · 4,769 tokens per session scan A d404eecb2f45
vibe-coding-rules CLAUDE.md is an instructions file published in the GitHub repository yerdaulet-damir/vibe-coding-rules (10 stars, last pushed 4mo ago), licensed MIT. It adds 4,769 tokens to every session, about $0.0238 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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