Sean McDonnell
Software engineer | Python, Next.js, APIs & applied AI
New to Contra
Sean is ready for their next project!
DeadBolt — a local execution gate for software agents
An independent NextEleven open-source project, built and released with Rust, Python and MCP integration routes. The trusted executor asks for admission before a protected tool action runs. I also built the product page, installation paths and captioned walkthroughs.
The gate protects routed actions; it does not sandbox an entire agent or stop work already running.
https://www.nexteleven.dev/deadbolt
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Witness — inspectable provenance interface
My independent NextEleven developer prototype keeps observations, inferences and generated text distinct. I built the provenance workflow and an interface for inspecting records, premises and stated limits. The screenshot shows synthetic demonstration data.
https://github.com/seanebones-lang/witness
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PersonalRAGVault — search your own documents
An independent NextEleven software project for importing documents, searching a personal knowledge vault, and inspecting retrieved source material. This screenshot uses sample data. It demonstrates a practical AI workflow and a usable document-search interface.
https://github.com/seanebones-lang/personal-RAG
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NextEleven — software engineering and applied AI website
My own company website: a clear service message, selected software projects, and paths for visitors to discuss a website refresh, integration or software problem. I built and maintain the site through NextEleven.
https://www.nexteleven.dev
Independent portfolio work; no client testimonial or sales result is implied.
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