What is UltraViolet CLAUDE.md?

Repository instructions for UltraViolet, including coding rules and mandatory documentation requirements. The rules mainly cover Go services, while frontend components follow their own project settings.

Use them when changing Go APIs, WebSockets, environment variables, database migrations, frontend-visible behavior, or the corresponding documentation.

They prevent changes from being accepted without the required style, validation, and user-facing documentation updates. Documentation drift is treated as a blocking defect.

How yakushstanislav/UltraViolet configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to yakushstanislav/UltraViolet. 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/yakushstanislav/UltraViolet/master/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/yakushstanislav/UltraViolet

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/yakushstanislav/ultraviolet/claude-md/github.svg)](https://agentmods.dev/instructions/yakushstanislav/ultraviolet/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/yakushstanislav/ultraviolet/claude-md"><img src="https://agentmods.dev/badge/instructions/yakushstanislav/ultraviolet/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/yakushstanislav/ultraviolet/claude-md"><img src="https://agentmods.dev/badge/instructions/yakushstanislav/ultraviolet/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,550 This file is loaded in full into every session.

When invoked 1,550 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.

Model	Per session	Once invoked
Fable 5.1	$0.01550	$0.01550
Opus 5.5	$0.00620	$0.00620
Sonnet 5.5	$0.00310	$0.00310
Haiku 4.5	$0.00155	$0.00155

Measured 2mo ago against content hash 3c30b7e0ab2b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

UltraViolet 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 · 128 lines

How it starts

The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UltraViolet Rules

Mandatory rules for the UltraViolet repository.

The code-style rules below (lint, headers, imports, handler shape, DTO validation, SQL builder) apply to Go code under service-api.
Frontend services (service-frontend, service-documentation-frontend) follow their own lint/format setup.
The Documentation (Mandatory) rule applies to every service in this repository.

Documentation (Mandatory)

Every change that adds or modifies user-visible or operator-visible functionality must update service-documentation-frontend/docs/ in the same commit / PR. Documentation drift is treated as a blocking defect on par with a failing lint.

Triggers

A doc update is required when a change touches any of the following:

Change	Where to update
New or modified HTTP / WebSocket endpoint	`docs/api/endpoints.md` (full table) + the feature-area page that exposes it (`docs/scanning/`, `docs/hosts/`, `docs/alerts/`, …).
New or modified env-var	`docs/deployment/env-reference.md` (full table) + every feature page that references it.
New or modified SQL migration under `service-api/deploy/migrations/`	`docs/concepts/data-model.md` (migrations list + tables + indexes).
New protocol probe under `service-api/internal/pkg/probe/`	`docs/probes/service-protocols.md` (row with default ports + extracted fields).
New background worker, cron task, or retention policy	`docs/concepts/` or `docs/admin/retention.md`, plus `docs/api/metrics.md` if it adds metrics.
New or substantially changed UI route in `service-frontend`	The matching user-facing page under `docs/scanning/`, `docs/search/`, `docs/hosts/`, `docs/dashboard/`, `docs/alerts/`, or `docs/admin/`.
RBAC, JWT, rate-limit, or bootstrap behaviour change	`docs/concepts/rbac.md` and/or `docs/api/authentication.md`.
Change to `service-env/docker-compose.yml`, `Makefile`, `install.sh`, `upgrade.sh`, `backup.sh`, `restore.sh`, or related scripts	The corresponding page under `docs/deployment/`.
Change to release archive contents, dist layout, or supported install modes	`docs/deployment/offline-install.md`.

Read the full file on GitHub · 128 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.

2mo ago First seen · 128 lines · 1,550 tokens per session scan A 3c30b7e0ab2b

Subscribe to this mod's changes

UltraViolet CLAUDE.md is an instructions file published in the GitHub repository yakushstanislav/UltraViolet (45 stars, last pushed 2mo ago), licensed MIT. It adds 1,550 tokens to every session, about $0.0062 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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UltraViolet: Instructions file for Claude Code