Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defaults. /frontend-design](https://skilld.dev/gh/hkuds/deepcode/frontend-design)
Updated 2 months ago
[
**/mcp-builder**
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK). /mcp-builder](https://skilld.dev/gh/hkuds/deepcode/mcp-builder)
Updated 2 months ago
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**/review-agent**
Perform a read-only, defect-first review of a specified code change and return every actionable finding. Use when another agent delegates review of uncommitted changes, a base-branch diff, a commit, or custom review instructions. /review-agent](https://skilld.dev/gh/hkuds/deepcode/review-agent)
Updated 2 months ago
[
**/security-best-practices**
Perform language and framework specific security best-practice reviews and suggest improvements. Trigger only when the user explicitly requests security best practices guidance, a security review/report, or secure-by-default coding help. Trigger only for supported languages (python, javascript/typescript, go). Do not trigger for general code review, debugging, or non-security tasks. /security-best-practices](https://skilld.dev/gh/hkuds/deepcode/security-best-practices)
Updated 2 months ago
[
**/security-ownership-map**
Analyze git repositories to build a security ownership topology (people-to-file), compute bus factor and sensitive-code ownership, and export CSV/JSON for graph databases and visualization. Trigger only when the user explicitly wants a security-oriented ownership or bus-factor analysis grounded in git history (for example: orphaned sensitive code, security maintainers, CODEOWNERS reality checks for risk, sensitive hotspots, or ownership clusters). Do not trigger for general maintainer lists or non-security ownership questions. /security-ownership-map](https://skilld.dev/gh/hkuds/deepcode/security-ownership-map)
Updated 2 months ago
[
**/security-threat-model**
Repository-grounded threat modeling that enumerates trust boundaries, assets, attacker capabilities, abuse paths, and mitigations, and writes a concise Markdown threat model. Trigger only when the user explicitly asks to threat model a codebase or path, enumerate threats/abuse paths, or perform AppSec threat modeling. Do not trigger for general architecture summaries, code review, or non-security design work. /security-threat-model](https://skilld.dev/gh/hkuds/deepcode/security-threat-model)
Updated 2 months ago
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**/skill-creator**
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Codex's capabilities with specialized knowledge, workflows, or tool integrations. /skill-creator](https://skilld.dev/gh/hkuds/deepcode/skill-creator)
Updated 2 months ago
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**/webapp-testing**
Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs. /webapp-testing](https://skilld.dev/gh/hkuds/deepcode/webapp-testing)
Updated 2 months ago
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