Borrowing it
Nothing to install: this file belongs to zoharbabin/brand-voice. 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/zoharbabin/brand-voice/main/CLAUDE.mdgit clone --depth 1 https://github.com/zoharbabin/brand-voiceWrote 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/zoharbabin/brand-voice/claude-md)<a href="https://agentmods.dev/instructions/zoharbabin/brand-voice/claude-md"><img src="https://agentmods.dev/badge/instructions/zoharbabin/brand-voice/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/zoharbabin/brand-voice/claude-md"><img src="https://agentmods.dev/badge/instructions/zoharbabin/brand-voice/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 | $0.01306 | $0.01306 |
| Opus 5 | $0.00653 | $0.00653 |
| Sonnet 5 | $0.00261 | $0.00261 |
| Haiku 4.5 | $0.00131 | $0.00131 |
Grade A, and why
brand-voice 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 9d 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 — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.
brand-voice — Agent Instructions
Project overview
brand-voice is a Node.js/TypeScript package that enforces brand writing guidelines in Claude Code. It ships three entry points:
| Binary | Source | Role |
|---|---|---|
brand-voice |
src/cli.ts |
CLI for CI pipelines and ratchet baseline |
brand-voice-check |
src/check.ts |
PostToolUse hook — exits 2 on violations, 0 when clean |
brand-voice-mcp |
src/mcp.ts |
MCP server — analyze_readability and apply_suggestions tools |
Public programmatic API is exported from src/index.ts. All types live in src/types.ts.
Required commands before every commit
npm run build # tsc — must produce zero errors
npm run typecheck # tsc --noEmit — strict mode
npm test # Jest — all tests must pass
No shortcut exists that runs all three; run them in order. The CI workflow runs build + typecheck + test on Node 18, 20, and 22.
Slash commands in .claude/commands/ wrap these: /build, /typecheck, /test [pattern], /precommit (runs all three in order), /healthcheck (triggers the GitHub Actions health check and reports the result).
Repository structure
src/
check.ts PostToolUse hook entry point
cli.ts CLI entry point (brand-voice command)
mcp.ts MCP server entry point
index.ts Public API exports
types.ts All shared TypeScript interfaces
core/
analyzer.ts Violation detection and readability scoring
load-guidelines.ts brand-guidelines.md search-path resolution
parse-guidelines.ts Markdown → BrandGuidelines parser
analyzer.test.ts Jest tests for analyzer
parse-guidelines.test.ts Jest tests for parser
setup/
generate-claude-md.ts CLAUDE.md injection generator
generate-vale-ini.ts .vale.ini + BrandVoice Vale style generator
register-hook.ts PostToolUse hook installer/uninstaller
register-mcp.ts .mcp.json installer/uninstaller
example/
brand-guidelines.md Working example — uses On-Brand Examples heading alias
skills/
brand-voice-setup.md /brand-voice-setup skill for guided onboarding
.github/workflows/
ci.yml CI: build + typecheck + test on Node 18/20/22
publish.yml Publish to npm on GitHub Release (requires NPM_TOKEN secret)
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.
- 9d ago First seen · 112 lines · 1,306 tokens per session scan A 4e4b113b55f1
brand-voice CLAUDE.md is an instructions file published in the GitHub repository zoharbabin/brand-voice (0 stars, last pushed 2mo ago), licensed MIT. It adds 1,306 tokens to every session, about $0.0065 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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