Open source alternatives to doublecheck
24 open source AI Skills apps to use instead, best rated first.
Top picks
- G
github-ops
Getgithub-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
- O
opensource-pipeline
Getopensource-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
- A
andrej-karpathy-skills
Getandrej-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
Getmarkitdown-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
Getod-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
Getgithub-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 doublecheck
doublecheck
Three-layer verification pipeline for AI output
doublecheck is an agent skill from the github/awesome-copilot collection that runs a three-layer verification pipeline on AI-generated output. Its goal is not to declare what is true, but to extract every verifiable claim in a response, find sources the user can check independently, and flag anything that looks like a hallucination pattern. It works in two modes. In active mode, invoked without specific text, it stays on for the rest of the conversation and adds an inline verification summary after each substantive response, and the user can ask for the full report on any response or turn the mode off. In one-shot mode it checks a given piece of text on request. Before any substantive response, the skill classifies whether the response contains verifiable claims, and it applies its rules to the claims it finds. Web search is used to locate supporting or contradicting sources, and an adversarial review pass looks for weak points in the claims. The skill is useful when a person relies on an AI answer for facts, and wants a trail to check. Its findings depend on the search results, which can be incomplete, so a claim the skill cannot source is not thereby false, and the user should check the sources that matter. The skill is installed with the skills CLI from the github/awesome-copilot repository. Its skills.sh page showed about 4.2K installs, with Gen Agent Trust Hub and Socket passing and Snyk showing a warning at the time of the scan.
- Price
- Free
- Made by
- github
- Category
- AI Skills
- Website
- github.com/github/awesome-copilot/doublecheck