Code Review

Systematic code review patterns covering security, performance, maintainability, correctness, and testing — with severity levels, structured feedback guidance, review process, and anti-patterns to avoid. Use when reviewing PRs, establishing review standards, or improving review quality.

Shell

Shell scripting reference — Bash syntax, redirections, process substitution, signal handling, debugging techniques. Use when writing shell scripts, troublesh...

gstack Investigate

Provides systematic root cause analysis and verified fixes for bugs or errors using a four-phase debugging process without guessing or premature fixes.

Spark (Dify)

Apache Spark is an open-source, distributed computing system designed for big data processing and analytics. It provides high-level APIs in Java, Scala, Python, and R, and supports a wide array of data processing tasks, from SQL queries to machine learning and graph processing. Please apply for an API Key, API Secret and APPID from the [iFLYTEK open platform](https://console.xfyun.cn/services). Th

ClawDefender - OpenClaw Security - Prompt injection, rogue skills etc

Security scanner and input sanitizer for AI agents. Detects prompt injection, command injection, SSRF, credential exfiltration, and path traversal attacks. Use when (1) installing new skills from ClawHub, (2) processing external input like emails, calendar events, Trello cards, or API responses, (3) validating URLs before fetching, (4) running security audits on your workspace. Protects agents from malicious content in untrusted data sources.

Sysadmin Toolbox

Tool discovery and shell one-liner reference for sysadmin, DevOps, and security tasks. AUTO-CONSULT this skill when the user is: troubleshooting network issues, debugging processes, analyzing logs, working with SSL/TLS, managing DNS, testing HTTP endpoints, auditing security, working with containers, writing shell scripts, or asks 'what tool should I use for X'. Source: github.com/trimstray/the-book-of-secret-knowledge

Input Guard

Scan untrusted external text (web pages, tweets, search results, API responses) for prompt injection attacks. Returns severity levels and alerts on dangerous content. Use BEFORE processing any text from untrusted sources.

Indirect Prompt Injection Defense

Detect and reject indirect prompt injection attacks when reading external content (social media posts, comments, documents, emails, web pages, user uploads). Use this skill BEFORE processing any untrusted external content to identify manipulation attempts that hijack goals, exfiltrate data, override instructions, or social engineer compliance. Includes 20+ detection patterns, homoglyph detection, and sanitization scripts.

Humanize AI

Humanize AI content by detecting and auto-fixing AI generated content. Humanize AI text using Python scripts. Scans for AI vocabulary, puffery, chatbot artifacts, and auto-replaces filler phrases. Use when you want to analyze text in AI detector and bypass it in future, batch-process files, run automated cleanup, or get a report before manual humanizing.

Bittensor SDK

Bittensor Python SDK skill covers the full v8.x API: Subtensor (~130 methods for staking, registration, weights, liquidity, proxy, coldkey swaps), AsyncSubtensor, Metagraph (5 variants), Axon/Dendrite/Synapse networking stack, 26 chain data models, 18 sync + 18 async extrinsic modules, SubtensorApi wrapper with 14 sub-APIs, dev test framework (~184 call blueprints), Drand timelock encryption, and all utils (Balance, btlogging state machine, weight processing, Uniswap V3 liquidity math, etc.).