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visor: Instructions file for Claude Code

CLAUDE.md

visor CLAUDE.md is an instructions file for Claude Code from probelabs/visor. It costs 1,903 tokens per session, scanned A, original, MIT.

Repository-specific instructions for Visor, an AI code-review tool that checks GitHub pull requests or local code for security, performance, style, and design problems.

In plain words
What is it for?
Use it when developing Visor, running its command-line checks, testing pull-request reviews, linting or formatting TypeScript, or generating test coverage.
Why use it?
It lists the commands for building, testing, formatting, and running all checks, so changes can be verified consistently.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions subagents; mentions Claude Code.

This is probelabs/visor's own configuration. It tells Claude Code how to work on visor itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything visor configures →

not rated 25repo +1 2d ago A scan 1,903 tokens original MIT
View source ↗ probelabs/visor probelabs.com
Reuse

Borrowing it

Nothing to install: this file belongs to probelabs/visor. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/probelabs/visor/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/probelabs/visor

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Your own site
<a href="https://agentmods.dev/instructions/probelabs/visor/claude-md"><img src="https://agentmods.dev/badge/instructions/probelabs/visor/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.

agentmods 80×15 button for visor CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/probelabs/visor/claude-md"><img src="https://agentmods.dev/badge/instructions/probelabs/visor/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,903 This file is loaded in full into every session.
When invoked 1,903 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01903 $0.01903
Opus 5.5 $0.00761 $0.00761
Sonnet 5.5 $0.00381 $0.00381
Haiku 4.5 $0.00190 $0.00190

Measured 2mo ago against content hash bf195c9b5c83, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

visor 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 2mo 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.

CLAUDE.md · 171 lines

How it starts

The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

Visor is an AI-powered code review tool for GitHub Pull Requests that can run as both a GitHub Action and CLI tool. The project analyzes code for security, performance, style, and architectural issues using various AI providers (Google Gemini, Anthropic Claude, OpenAI GPT) and provides intelligent feedback.

Development Commands

Build and Development

  • npm run build - Build TypeScript to dist/
  • npm run clean - Remove dist/ directory
  • npm run prebuild - Runs clean before build

Testing

  • npm test - Run all Jest tests (timeout: 10 minutes per user config)
  • npm run test:watch - Run tests in watch mode
  • npm run test:coverage - Generate coverage report

Code Quality

  • npm run lint - Lint TypeScript files in src/ and tests/
  • npm run lint:fix - Auto-fix linting issues
  • npm run format - Format code with Prettier
  • npm run format:check - Check code formatting

Running the Tool

  • ./dist/cli-main.js --help - Show CLI help after building
  • ./dist/cli-main.js --check all - Run all checks
  • ./dist/cli-main.js --check security --output json - Security check with JSON output
  • ./dist/cli-main.js config snapshots - List config snapshots
  • ./dist/cli-main.js --slack --config .visor.yaml --watch - Slack mode with live config reload

Deployment

  • npm run deploy:site - Deploy site to Cloudflare Pages
  • npm run deploy:worker - Deploy worker to Cloudflare
  • npm run deploy - Deploy both site and worker

Architecture Overview

Core Components

Entry Points:

  • src/index.ts - GitHub Action entry point, handles GitHub event processing
  • src/cli-main.ts - CLI tool entry point, parses arguments and runs checks

Key Services:

  • src/reviewer.ts - Core review logic and issue scoring calculations
  • src/ai-review-service.ts - AI provider abstraction for code analysis
  • src/pr-analyzer.ts - GitHub PR data extraction and diff processing
  • src/pr-detector.ts - Detects PR context from various GitHub events
  • src/github-comments.ts - Manages GitHub PR comments and updates
  • src/check-execution-engine.ts - Orchestrates running multiple check providers

Read the full file on GitHub · 171 lines

Changes

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.

  1. 2mo ago First seen · 171 lines · 1,903 tokens per session scan A bf195c9b5c83

Subscribe to this mod's changes

visor CLAUDE.md is an instructions file published in the GitHub repository probelabs/visor (25 stars, last pushed 2d ago), licensed MIT. It adds 1,903 tokens to every session, about $0.0076 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.

Code reviewTestingTypeScriptaiautomationcligithub-actions
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