DeepClause
A Neurosymbolic AI System Built on WASM and Prolog
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Hi HN,Today I'd like to present the results of my weekend project of the last year or so. Given there are many posts on HN about LLMs and Prolog, I thought that this would be of interest.DeepClause is my own (possibly misguided :-) attempt at combining LLMs with Logic Programming, ultimately hoping to establish a foundation for building more reliable agents, that produce reproducible and fully traceable result.At the heart of DeepClause is a DSL called "DeepClause Meta Language" (DML) which can be used to encode agent behaviors as executable logic programs. DML is executed by a meta-interpreter implemented in Prolog and thus natively supports things like constraint logic programming, knowledge graphs, symbolic reasoning, ... The DML interpreter itself runs inside the SWI Prolog WASM module, thus allowing for a secure and sandboxed execution environment for AI agents.The project is still rough around a lot of edges, but I'd love to get some feedback and comments.
HN · launched Nov 15, 2025 · 7 upvotes (top 62%) · 2 views
Niche: ai intelligence and analysis tools · 141 launches, 17 in the last 7 days ▲ +13% · Explore this niche →
Category and tags
- Horizontal
- Model & infra
- Developer
- AI-native
- Hobby / open-source project
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More like this: all 141 launches in ai intelligence and analysis tools →
Could you build this?
No Integrating an LLM with a Prolog logic programming engine via WebAssembly is a complex neurosymbolic systems engineering challenge requiring deep compiler and formal logic expertise.
What it would actually take: The system requires compiling an existing Prolog engine (like SWI-Prolog or Scryer) to WebAssembly and creating bidirectional bindings between logic queries and LLM tool calling. The core difficulty is parsing natural language into valid Prolog terms, handling proof searches, backtracking across token generations, and managing deterministic memory/execution boundaries within WASM. This demands expertise in declarative programming, formal logic theory, and WASM runtime interoperability.
Discussion
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Competitors
Other products that read as similar to this one : 2054 launches clear the similarity bar, closest 8 shown.
Attention rank: #1185 of 2055 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 17 days after the earliest competitor.
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