ContextOS — open-source project that extends and absorbs context-hub

[itallstartedwithaidea]

Hi @andrewyng — huge respect for context-hub. The curated doc registry
pattern + annotation persistence + SKILL.md integration is exactly the
right primitive for coding agents.

I built ContextOS — an open-source unified context intelligence layer
for AI agents — and formally absorbed context-hub as one of seven
foundational projects it builds on.

What ContextOS adds on top of context-hub:

• Cross-session annotation persistence (annotations survive restarts + sync across machines)
• Staleness detection (stale docs auto-flag and re-fetch on TTL — no manual chub get)
• Full memory layer (hot/warm/cold tiering, entity graph, conflict resolution)
• Hybrid retrieval (BM25 + vector, multi-corpus routing)
• MCP-native tool schema (55 tools across 6 layers)
• Python / pip install (context-hub is JS/npm only)
• ctx docs import chub — one command migrates all existing chub annotations

Every chub command works as a ctx docs subcommand — full backward compatibility.

Repo: https://github.com/itallstartedwithaidea/ContextOS
Credit: context-hub is formally credited in our README, CITATION.cff, and llms.txt

Happy to collaborate, cross-link, or contribute docs back to this registry.
Would love your thoughts.

— John Williams / IASAWI