Borrowing it
Nothing to install: this file belongs to KaelSensei/MagicAIBuilder. 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/KaelSensei/MagicAIBuilder/main/CLAUDE.mdgit clone --depth 1 https://github.com/KaelSensei/MagicAIBuilderWrote 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/kaelsensei/magicaibuilder/claude-md)<a href="https://agentmods.dev/instructions/kaelsensei/magicaibuilder/claude-md"><img src="https://agentmods.dev/badge/instructions/kaelsensei/magicaibuilder/claude-md/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/instructions/kaelsensei/magicaibuilder/claude-md"><img src="https://agentmods.dev/badge/instructions/kaelsensei/magicaibuilder/claude-md.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 | $0.01063 | $0.01063 |
| Opus 5.5 | $0.00425 | $0.00425 |
| Sonnet 5.5 | $0.00213 | $0.00213 |
| Haiku 4.5 | $0.00106 | $0.00106 |
Grade A, and why
MagicAIBuilder 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 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.
How it starts
The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MagicAIBuilder — Project Instructions
Stack: Next.js 15 (App Router) · React 19 · TypeScript strict · Prisma · Zustand · Vitest · SonarCloud
Skills — load these for the right job
| Task | Skill |
|---|---|
| Writing/reviewing TypeScript or React | typescript-craftsmanship |
| Refactoring, DRY, code smells | clean-code |
| Where does this code live? Layers | clean-architecture |
| Test-first / TDD | tdd |
| Auditing a file or PR | code-audit + security-review |
| Perf / Core Web Vitals | web-performance |
Skills own the coding standards — no any/as/!, exhaustive never guards, discriminated unions, readonly by default, single-pass algorithms, Map/Set for lookups, memoization, fine-grained Zustand selectors, serialized async, error boundaries, file-size limits, naming conventions, JSDoc on exports, etc. Do not duplicate those rules in this file. If a rule is missing from a skill, add it to the skill, not here.
TDD contract
The authoritative method is docs/engineering/tdd-with-ai.md
and .agents/rules/tdd-skill.mdc:
Red -> Super Green -> Refining Refactoring. Prefer sociable tests at stable
behavioral boundaries; use solitary tests for pure policies and algorithms.
Super Green means production-quality structure now, not speculative final
architecture. A PR must record the focused Red failure and the verification
performed after implementation.
Project-specific rules (not covered by any skill)
Branch flow — dev → staging → main
The branches have distinct release roles:
dev: daily integration of features and fixes.staging: QA alpha candidate and colleague validation. Mobile QA currently means responsive web viewport checks; there is no native mobile/TestFlight build yet.main: validated release code only.
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 Changed · +10 lines · +114 tokens per session 7a40ef9dd4ac
- 1mo ago First seen · 59 lines · 949 tokens per session scan A 3d72531cabad
MagicAIBuilder CLAUDE.md is an instructions file published in the GitHub repository KaelSensei/MagicAIBuilder (2 stars, last pushed yesterday), licensed MIT. It adds 1,063 tokens to every session, about $0.0043 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 2026-08-31.
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