A local scanner that looks through a working directory for exposed secrets such as API keys, private keys, database credentials, and hardcoded tokens.

Use it to inspect environment files, key files, cloud credential files, and source code for possible credential leaks.

It helps find credentials accidentally committed to project files while keeping the actual secret values hidden in its output.

secrets — Skill for Claude Code by rad-security/claude-code-plugin

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 rad-security/claude-code-plugin --skill secrets

Clone the repo

git clone --depth 1 https://github.com/rad-security/claude-code-plugin

Made for: Claude Code.

Or install agentkeeper, the plugin that ships this one along with the rest of its 13 skills, 4 hooks.

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/skills/rad-security/claude-code-plugin/secrets/github.svg)](https://agentmods.dev/skills/rad-security/claude-code-plugin/secrets)

Your own site

<a href="https://agentmods.dev/skills/rad-security/claude-code-plugin/secrets"><img src="https://agentmods.dev/badge/skills/rad-security/claude-code-plugin/secrets/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/skills/rad-security/claude-code-plugin/secrets"><img src="https://agentmods.dev/badge/skills/rad-security/claude-code-plugin/secrets.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,519 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. ✓ AI security review Sonnet 5 · 7 Sept 2026 📄 Read the review

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	$0.00050	$0.01519
Opus 5.5	$0.00020	$0.00608
Sonnet 5.5	$0.00010	$0.00304
Haiku 4.5	$0.00005	$0.00152

Measured 2mo ago against content hash 8dc61e809f0e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

secrets 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.

plugins/agentkeeper/skills/secrets/SKILL.md · 163 lines

How it starts

The opening of the file, as written. The whole thing — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AgentKeeper Secret Scanner

You are scanning the current working directory for exposed secrets. This runs entirely locally — no network calls.

CRITICAL: NEVER print, display, or echo actual secret values. Show only the file path, line number, pattern type, and a masked preview.

Step 1: Find Secret Files

Use Glob and Bash to locate files that commonly contain secrets:

Environment files

find . -maxdepth 5 -type f \( -name ".env" -o -name ".env.*" -o -name ".env.local" -o -name ".env.production" -o -name ".env.development" \) ! -path "*/node_modules/*" ! -path "*/.git/*" 2>/dev/null

Private key files

find . -maxdepth 5 -type f \( -name "*.pem" -o -name "*.key" -o -name "*.p12" -o -name "*.pfx" -o -name "id_rsa" -o -name "id_ed25519" -o -name "id_ecdsa" -o -name "*.keystore" \) ! -path "*/node_modules/*" ! -path "*/.git/*" 2>/dev/null

Cloud credential files

find . -maxdepth 5 -type f \( -name "credentials" -o -name "credentials.json" -o -name "service-account*.json" -o -name "application_default_credentials.json" \) ! -path "*/node_modules/*" ! -path "*/.git/*" 2>/dev/null

Step 2: Scan Source Files for Secret Patterns

Use Grep to search for secret patterns in source code files. Search in common source file extensions only (to avoid binaries). For each pattern, collect file path, line number, and the pattern type.

AWS Access Keys

AKIA[0-9A-Z]{16}

AWS Secret Keys

(?i)(aws_secret_access_key|aws_secret_key)\s*[=:]\s*\S+

Stripe Keys

(sk_live_|rk_live_|sk_test_|rk_test_)[a-zA-Z0-9]{20,}

GitHub Tokens

(ghp_|gho_|ghu_|ghs_|ghr_)[a-zA-Z0-9]{36,}

Generic API Key Patterns

(?i)(api[_-]?key|apikey|api[_-]?secret)\s*[=:]\s*['"][a-zA-Z0-9_\-]{20,}['"]

Private Key Headers

-----BEGIN (RSA |EC |DSA |OPENSSH )?PRIVATE KEY-----

Database Connection Strings

(?i)(mongodb|postgres|postgresql|mysql|redis|amqp):\/\/[^\s'"]+:[^\s'"]+@

JWT Tokens (hardcoded)

eyJ[a-zA-Z0-9_-]{10,}\.eyJ[a-zA-Z0-9_-]{10,}\.[a-zA-Z0-9_-]+

Read the full file on GitHub · 163 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 · 163 lines · 50 tokens per session scan E 8dc61e809f0e

Subscribe to this mod's changes

secrets is a skill published in the GitHub repository rad-security/claude-code-plugin (3 stars, last pushed 23d ago), licensed MIT. It adds 50 tokens to every session and 1,519 once invoked, about $0.0002 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 2026-08-31.