Cross-posted from the Stigmem blog .

Today we're releasing stigmem v1.0: A stable, open-source specification and reference implementation for a federated knowledge fabric for AI agents.

Why "stigmem"?

Stigmem = Stigmergy + Memory .

Stigmergy (Greek stigma — mark; ergon — work) is the coordination mechanism you see in ant colonies and termite mounds: agents don't communicate directly with each other. Instead, they leave traces in a shared environment: a pheromone trail, a soil deposit; and those traces guide the behavior of future agents. The colony's intelligence emerges from the environment itself, not from any central controller.

Stigmem applies the same principle to multi-agent AI systems. Agents write typed, provenance-tagged facts into a shared substrate. Other agents running later, on different platforms, inside different organizations read those facts and act on them. No central coordinator, no point-to-point protocol overhead.…