Borrowing it
Nothing to install: this file belongs to vulnersCom/api. 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/vulnersCom/api/master/AGENTS.mdgit clone --depth 1 https://github.com/vulnersCom/apiWrote 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/vulnerscom/api/agents-md)<a href="https://agentmods.dev/instructions/vulnerscom/api/agents-md"><img src="https://agentmods.dev/badge/instructions/vulnerscom/api/agents-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/vulnerscom/api/agents-md"><img src="https://agentmods.dev/badge/instructions/vulnerscom/api/agents-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 | $0.01497 | $0.01497 |
| Opus 5.5 | $0.00599 | $0.00599 |
| Sonnet 5.5 | $0.00299 | $0.00299 |
| Haiku 4.5 | $0.00150 | $0.00150 |
Grade A, and why
api AGENTS.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 — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — using the Vulners Python SDK
Guidance for AI agents (and their humans) using this SDK to work with the
Vulners vulnerability intelligence API. For contributor/development
conventions, see .agents/skills/vulners-api/SKILL.md instead.
Install & authenticate
pip install vulners # core
pip install "vulners[mcp]" # + the MCP server (see below)
Working inside a repository checkout? Use
uv sync --lockedanduv run python .... Do not runpip install vulners— that installs the currently published release rather than this checkout. (For development conventions and commands, see.agents/skills/vulners-api/SKILL.md.)
The API key comes from the VULNERS_API_KEY environment variable, or is passed explicitly.
Get a free key at https://vulners.com. Never hard-code a key in committed code.
Two ways to use it
1. As a library
Prefer the v4 clients: Vulners (sync) and AsyncVulners (async). Both are context
managers and expose the same resource namespaces.
from vulners import Vulners
with Vulners() as v: # reads VULNERS_API_KEY
# Search (Lucene syntax → typed Bulletin models; access fields as attributes)
for b in v.search.query("type:cve AND cvss.score:[9 TO 10]", limit=10):
print(b.id, b.title, b.cvss and b.cvss.score)
# Single lookup (-> Bulletin | None)
cve = v.search.get_bulletin("CVE-2021-44228")
# Audit software / Linux host
v.audit.software(["cpe:2.3:a:apache:log4j:2.14.1"])
v.audit.linux_audit(os_name="debian", os_version="10",
packages=["openssl 1.1.1d-0+deb10u3 amd64"])
Key entry points:
| Namespace | What it does | Common methods |
|---|---|---|
v.search |
search & fetch documents | query, iter_query, get_bulletin, get_multiple_bulletins |
v.documents |
document-centric lookups | get, get_many, references, history |
v.audit |
vulnerability assessment | software, host, linux_audit, library_audit, sbom_audit, cve_audit, kb_audit, win_audit, smart |
v.archive |
bulk dataset download | fetch_collection, iter_collection (stream), fetch_collection_update |
v.misc |
lookups | search_cpe, query_autocomplete, get_suggestion |
v.subscriptions |
current v4 subscriptions API | list, get, create, update, delete |
v.subscriptions_email |
legacy v3 email subscriptions | list, add, edit, delete |
v.webhooks |
legacy v3 polling webhook subscriptions | list, add, read, delete |
v.report · v.stix · v.vscanner |
reporting, STIX bundles, VScanner | — |
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 First seen · 110 lines · 1,497 tokens per session scan A 0b4fd539783b
api AGENTS.md is an instructions file published in the GitHub repository vulnersCom/api (377 stars, last pushed today), licensed MIT. It adds 1,497 tokens to every session, about $0.0060 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.