Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/vulk-dev/vulk-mcp-server/vulknpx skills add VULK-dev/vulk-mcp-server --skill vulkgit clone --depth 1 https://github.com/VULK-dev/vulk-mcp-serverWhat 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 | $0.00023 | $0.00245 |
| Opus 5 | $0.00012 | $0.00122 |
| Sonnet 5 | $0.00005 | $0.00049 |
| Haiku 4.5 | $0.00002 | $0.00024 |
Grade C, and why
vulk scanned grade C with 1 finding 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 2d 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.
Reaches for credential fileshighPrivilege escalation
SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.
Use `get_project_files` without `includeContent` first. Request file content only when needed, and request specific paths. Do not request secrets, `.env` files, credentials, private keys, certificates, `.npmrc`, `.pypirc What it actually says
VULK
Use VULK when the user asks to build, remix, inspect, edit, or deploy a website or web app from chat.
Prefer generate_immersive_site for briefs that mention:
- 3D, WebGL, Three.js, R3F, spatial interfaces, or product reveals
- cinematic motion, video references, scroll-driven storytelling, or immersive sites
- moodboards, screenshots, Figma, URLs, product images, or visual references
Use create_project for general web projects.
Use get_project_files without includeContent first. Request file content only when needed, and request specific paths. Do not request secrets, .env files, credentials, private keys, certificates, .npmrc, .pypirc, .netrc, or service-account files.
Return the VULK project ID, preview URL, editor URL, and deployment URL when available. Do not describe VULK as a raw image, video, or audio generation API; VULK delivers editable web projects.
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.
- 2d ago First seen · 21 lines · 23 tokens per session scan C 3a707c21192d
vulk is a skill published in the GitHub repository VULK-dev/vulk-mcp-server (7 stars, last pushed 3mo ago), licensed MIT. It adds 23 tokens to every session and 245 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 1 finding (reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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