Show HN: Viaduct – Architecture change sets for AI coding agents
C4 modelling · MCP server · self-hostedA C4 model your team maintains and your agents can readDraw system context, containers, components and code. Attach the docs, sequence diagrams and API contracts to the elements they belong to. Serve the whole thing to Cursor or Claude Code over MCP.Quick startLog infree · no account · runs in this browser · export any time01LevelsFour levels, one modelOpen a system to see its containers, a container to see its components.
- ▪C4 modelling · MCP server · self-hostedA C4 model your team maintains and your agents can readDraw system context, containers, components and code.
- ▪Attach the docs, sequence diagrams and API contracts to the elements they belong to.
- ▪Serve the whole thing to Cursor or Claude Code over MCP.Quick startLog infree · no account · runs in this browser · export any time01LevelsFour levels, one modelOpen a system to see its containers, a container to see its components.
Hacker News (AI / LLM) files mainly under ai. We currently carry 4,500 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
inspect →
Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | Viaduct |
| Canonical URL | https://c4.quietgridlabs.com/ |
| Publication time | Fri, 11 Sep 2026 17:43:29 +0000 |
| Retrieval time | 2026-09-11T18:53:48.321Z |
| Last seen | 2026-09-11T18:54:06.491Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | y6WIyooAw3VO · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
C4 modelling · MCP server · self-hostedA C4 model your team maintains and your agents can readDraw system context, containers, components and code. Attach the docs, sequence diagrams and API contracts to the elements they belong to. Serve the whole thing to Cursor or Claude Code over MCP.Quick startLog infree · no account · runs in this browser · export any time01LevelsFour levels, one modelOpen a system to see its containers, a container to see its components. Every level is a view of the same model, so a rename or a new dependency shows up everywhere it belongs.02NotationThe technology picks the colourPick a technology and the element takes its colour and logo.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Viaduct.
Discussion
0 commentsMore from Viaduct
