Zindex – Diagram Infrastructure for Agents
_ben_
46 points
17 comments
April 21, 2026
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Discussion Highlights (9 comments)
_ben_
Zindex is a stateful diagram runtime for agents. Agents create diagrams by sending structured operations through the Diagram Scene Protocol (DSP) - the platform validates, normalizes, and renders durable scene state rather than one-shot output.
hmokiguess
how does Zindex compares to Mermaid?
0x696C6961
I just use D2 for this.
recsv-heredoc
I tried to find them on GitHub. Doesn't seem to be FOSS/OSS either. Does address a real use-case - might be great as a library or a lightweight alternative to Mermaid. As SaaS it's a very hard sell.
alxhslm
I’ve found that Claude can make decent mermaid diagrams pretty reliably. Not sure I quite understand what problem Zindex solves
oliyoung
I get the want to define architectural relationships as a node & edge structure rather than just purely diagrams, which is an argument for D2 over Mermaid but why not just use https://github.com/jsongraph ?
rockwotj
> Production-grade 17 operation types. 40+ semantic validation rules. Auth, rate limiting, PostgreSQL storage. Man where in the LLM training data did the “production ready “ come from? That whole list screams AI. Humans want social proof, not a list.
dchuk
You have to include screenshots on a landing page for a diagramming system
coalstartprob
bad choice of name..