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sast-hardcodedsecrets

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Detect hardcoded sensitive data (API keys, access tokens, private keys, passwords, etc.) in publicly accessible code — frontend JavaScript, mobile apps, client-side bundles, and HTML templates. Uses a three-phase approach: recon (find secret candidates), batched verify (confirm real secrets in public code paths, 3 candidates each), and merge (consolidate batch results). Requires sast/architecture.md (run sast-analysis first). Outputs findings to sast/hardcodedsecrets-results.md. Use when asked to find hardcoded secrets, leaked API keys, or exposed credentials.

sast-files/.agents/skills/sast-hardcodedsecrets/SKILL.md

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Last checked
Nov 9, 2026

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Repository last updated
Oct 23, 2026
License
MIT

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# Hardcoded Secrets in Public Code Detection

You are performing a focused security assessment to find hardcoded sensitive data that is exposed in publicly accessible code. This skill uses a three-phase approach with subagents: **recon** (find all potential secret candidates), **batched verify** (confirm each is a real secret in publicly reachable code, in parallel batches of 3), and **merge** (consolidate batch reports into one file).

**Prerequisites**: `sast/architecture.md` must exist. Run the analysis skill first if it doesn't.

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## What Are Hardcoded Secrets in Public Code

Hardcoded secrets are sensitive credentials — API keys, access tokens, private keys, passwords, signing secrets, database connection strings — embedded directly in source code as string literals.

This skill focuses specifically on secrets that end up in **publicly accessible code**, meaning an attacker can extract them **without any server-side access**. A secret hardcoded in backend server code is bad practice but not directly exploitable by an external attacker inspecting the deployed application. A secret hardcoded in frontend JavaScript or a mobile app binary **is** directly extractable.
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