lfi

lfi is a skill for Claude Code, Codex from blacklanternsecurity/red-run. It costs 25 tokens per session (4,201 once invoked), scanned B, original, GPL-3.0.

Guide Local File Inclusion (LFI) and Remote File Inclusion (RFI) exploitation during authorized penetration testing.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/blacklanternsecurity/red-run/lfi
Any agent
npx skills add blacklanternsecurity/red-run --skill lfi
Clone the repo
git clone --depth 1 https://github.com/blacklanternsecurity/red-run

Made for: Claude Code, Codex.

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.

agentmods badge for lfi

README.md
[![agentmods](https://agentmods.dev/badge/skills/blacklanternsecurity/red-run/lfi.svg)](https://agentmods.dev/skills/blacklanternsecurity/red-run/lfi)
Your own site
<a href="https://agentmods.dev/skills/blacklanternsecurity/red-run/lfi"><img src="https://agentmods.dev/badge/skills/blacklanternsecurity/red-run/lfi.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,201 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
Origin unknown 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 $0.00025 $0.04201
Opus 5 $0.00013 $0.02100
Sonnet 5 $0.00005 $0.00840
Haiku 4.5 $0.00003 $0.00420

Measured today against content hash 29de6edbe758, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

lfi scanned grade B with 2 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 today.

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 filesmediumPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

/home/USER/.ssh/id_rsa # SSH private keys

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -A '<?php system($_GET["cmd"]); ?>' 'http://TARGET/'
skills/web/lfi/SKILL.md · 540 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. today First seen · 540 lines · 25 tokens per session scan B 29de6edbe758

Subscribe to this mod's changes

lfi is a skill published in the GitHub repository blacklanternsecurity/red-run (266 stars, last pushed 5mo ago), licensed GPL-3.0. It adds 25 tokens to every session and 4,201 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 2 findings (reaches for credential files, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

Other skills, from other repositories

lfi-poc

Exploit Local File Inclusion (LFI) vulnerabilities to read sensitive files, execute code, and escalate to Remote Code Execution (RCE). LFI occurs when web applications include files based on user-controlled input without proper sanitization.

zebbern/termstack · 4 tokens

dotnet-file-read-audit

.NET 文件读取与路径穿越审计 skill。覆盖 File.ReadAllText、FileStream、StreamReader、Response.WriteFile、PhysicalFile、Server.MapPath、Path.Combine 等 sink。追踪用户可控输入到文件操作路径,输出路径穿越证据和修复建议。.

jinyimeng01/net-code-audit-skill-master · 68 tokens

detecting-lfi-path-traversal-vulnerabilities

Detect Local File Inclusion (LFI) and path traversal vulnerabilities in web applications that allow reading arbitrary files from the server. Covers manual payload testing, encoding bypasses, log poisoning for RCE, and PHP wrapper techniques in isolated Docker lab environments.

withcrux/agentHack-skills · 61 tokens

web-enumeration

Sensitive file scanning, path traversal bypass, vHost enum, .env extract, log mining, Varnish detect.

uphiago/recon-skills · 28 tokens

audit-agent-code

Security-audit an AI agent's OWN framework code for classic appsec vulnerabilities the LLM can't defend — path traversal, command injection, SSRF, fail-open security controls, missing/late auth, unsafe deserialization — especially at the untrusted-input boundaries (channels, file/media handlers, config & skill…

William2333ZZ/trustshell · 102 tokens

web-exploitation

Web application exploitation skill — offensive kill chain for confirming and exploiting vulnerabilities discovered during web recon. Activate when the user mentions exploiting, testing, or confirming vulnerabilities such as SQLi, XSS, LFI, RFI, SSRF, SSTI, XXE, broken access control, IDOR, JWT attacks, OAuth abuse…

DouglasRao/Claude-Pentest-Skills · 124 tokens