source-leak-hunt

source-leak-hunt is a skill for Claude Code, Codex from uphiago/recon-skills. It costs 19 tokens per session (2,615 once invoked), scanned C, original, MIT.

A security-testing procedure for finding accidentally exposed source files, backups, configuration files, and logs on websites.

In plain words
What is it for?
Use it against live, authorized URLs to look for files such as .env, Git configuration, database backups, debug logs, PHP settings pages, and deployment files.
Why use it?
It reduces manual checking and filters responses by content so ordinary error pages are less likely to be mistaken for real leaks.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it against live, authorized URLs to look for files such as .env, Git configuration, database backups, debug logs, PHP settings pages, and deployment files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/uphiago/recon-skills/source-leak-hunt
About the project

Recon Skills is a pack of security-testing skills covering reconnaissance, web applications, APIs, authentication, vulnerability validation, cloud infrastructure, and reporting. Security professionals use it for authorized assessments of systems they own or have written permission to test. The catalogue entries are individual skills from the pack.

uphiago/recon-skills · 1,251 stars · on GitHub · hiago.sh

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.

Any agent
npx skills add uphiago/recon-skills --skill source-leak-hunt
Clone the repo
git clone --depth 1 https://github.com/uphiago/recon-skills

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 source-leak-hunt

README.md
[![agentmods](https://agentmods.dev/badge/skills/uphiago/recon-skills/source-leak-hunt/github.svg)](https://agentmods.dev/skills/uphiago/recon-skills/source-leak-hunt)
Your own site
<a href="https://agentmods.dev/skills/uphiago/recon-skills/source-leak-hunt"><img src="https://agentmods.dev/badge/skills/uphiago/recon-skills/source-leak-hunt/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 source-leak-hunt

Your own site · 80×15
<a href="https://agentmods.dev/skills/uphiago/recon-skills/source-leak-hunt"><img src="https://agentmods.dev/badge/skills/uphiago/recon-skills/source-leak-hunt.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,615 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 12 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 41
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 161
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 189
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 42
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 42
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 78
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 102
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 86
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 110
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 87
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 111
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Tool Misuse · line 145
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
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 $0.00019 $0.02615
Opus 5 $0.00010 $0.01307
Sonnet 5 $0.00004 $0.00523
Haiku 4.5 $0.00002 $0.00262

Measured 10d ago against content hash 0fd65ecb0265, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade C, and why

source-leak-hunt scanned grade C 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 10d 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.

Harvests environment variableshighData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

### Step 2 — Extract Credentials from Leaked Files

Makes network callslowCapability

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

compatibility: Requires curl, grep
recon/source-leak-hunt/SKILL.md · 245 lines

How it starts

The opening of the file, as written. The whole thing — 245 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Source Leak Hunt Skill

Mass scanning for exposed sensitive files (.env, .git/config, wp-config.php.bak, debug.log, backup.sql, phpinfo.php, Dockerfile, etc.) with content-based false positive filtering. Source leaks are the second most common finding (~7% of targets) after WordPress user enumeration.

When to Use

  • After skill_view(name='wp-mass-recon') confirms a target is alive.
  • Broad scanning across a batch of domains.
  • When probing for credential exposure that enables deeper access.
  • Complementing skill_view(name='js-secrets-extraction') for client-side secrets.

Prerequisites

  • terminal with curl.
  • List of live URLs (output from httpx or wp-mass-recon Phase 1).
  • Persistence: output directory at $OUTDIR/leaks/.

How to Run

# Quick scan single target (20 paths)
TARGET="https://example.com"
for path in .env .git/config wp-config.php.bak debug.log backup.sql info.php phpinfo.php \
  .env.backup .env.local .env.production wp-config.php~ .git/HEAD .backup.sql \
  docker-compose.yml Dockerfile .DS_Store robots.txt sitemap.xml; do
  code=$(curl -sk -o /dev/null -w "%{http_code}" --max-time 5 --connect-timeout 5 "$TARGET/$path")
  [[ "$code" == "200" ]] && echo "HTTP 200: $TARGET/$path"
  sleep 0.2
done

Quick Reference

Path What It Exposes Severity
.env DB creds, API keys, app secrets Critical
wp-config.php.bak MySQL root password, salts Critical
.git/config Repository URL, credentials High
debug.log PHP errors, server paths, SQL queries High
backup.sql Full database dump Critical
info.php / phpinfo.php PHP config, disable_functions, server env High
docker-compose.yml Service architecture, env vars Medium
Dockerfile Build config, exposed ports Low
.env.backup / .env.local Same as .env, alternate names Critical
wp-config.php~ Vim swap of wp-config Critical
.DS_Store Directory listing (macOS) Low
error_log PHP error log (can be multi-MB, full of paths/queries) High

Read the full file on GitHub · 245 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. 10d ago First seen · 245 lines · 19 tokens per session scan C 0fd65ecb0265

Subscribe to this mod's changes

source-leak-hunt is a skill published in the GitHub repository uphiago/recon-skills (1,251 stars, last pushed 8d ago), licensed MIT. It adds 19 tokens to every session and 2,615 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 2 findings (harvests environment variables, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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