Open source alternatives to fullstack-guardian
24 open source AI Skills apps to use instead, best rated first.
Top picks
- G

github-ops
Launchgithub-ops is an agent skill from the ECC collection by affaan-m, listed on skills.sh. It manages a GitHub repository with a focus on community health, CI reliability and the experience of contributors. It covers triaging issues by classify
Open source
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opensource-pipeline
Launchopensource-pipeline is an agent skill from the ECC collection by affaan-m, listed on skills.sh. It prepares a private project for safe public release through a three-stage pipeline. The fork stage strips secrets from a copy. The sanitise st
Open source
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andrej-karpathy-skills
Launchandrej-karpathy-skills is a single CLAUDE.md file from the multica-ai project that is meant to improve how Claude Code behaves on coding tasks. It is derived from Andrej Karpathy's public observations about LLM coding pitfalls. The file dis
Open source
- M

microsoft/markitdown
Launchmarkitdown-mcp is the MCP server package for MarkItDown, Microsoft's tool for converting many file formats to Markdown for language models. It is a lightweight server that runs over stdio, Streamable HTTP or SSE, and exposes one tool, conve
Open source
- O

od-contribute
Launchod-contribute is an agent skill in the OpenDesign project that provides a guided, one-click contribution flow to the OpenDesign repository, written so that people without a coding background can send a real pull request. It is locked to the
Open source
- G

github-deep-research
Launchgithub-deep-research is an agent skill from the DeerFlow project that researches a single GitHub repository in several rounds and writes a report in Markdown. It is for requests that need more than a README summary, such as a comprehensive
Open source
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About fullstack-guardian

fullstack-guardian
Builds security-focused full-stack web applications
fullstack-guardian is an agent skill from the jeffallan claude-skills collection for building full-stack web applications with security applied at every layer. The skill's persona is a security-focused full-stack developer who implements frontend and backend parts of a feature together. Its workflow is a sequence: gather requirements and acceptance criteria, design the solution from three perspectives (frontend, backend and security), write a technical design document, pass a security checkpoint against a security checklist before any code is written, implement the parts incrementally with tests as it goes, and hand off to a test specialist for QA and to a DevOps role for deployment. The security checkpoint is the distinctive part: the agent confirms that authentication, authorisation, input validation and output encoding are addressed before implementation begins. The skill is useful for teams building web apps where security needs to be designed in rather than added later. It is listed on skills.sh, where the page shows install counts and GitHub stars for the collection. Its Gen Agent Trust Hub audit is marked as failing, which the FAQ lists, while Socket and Snyk pass. Install it with npx skills add https://github.com/jeffallan/claude-skills --skill fullstack-guardian.
- Price
- Free
- Made by
- jeffallan
- Category
- AI Skills
- Website
- github.com/jeffallan/claude-skills/fullstack-guardian











