Vendor A
Theoretical rent = rent at full occupancy.
Open standards. Shared meaning. Agentic enterprise.
Open Context Guild
The context layer for AI is being built right now.
Google, W3C and open communities are each solving a piece. One piece is still open: can an agent prove it may use this context, for this task, on any platform?
Open · vendor-neutral · non-profit · Made in the Netherlands
02 /
The race is on
W3C AI Agent Protocol CG starts
SourceW3C Context Graphs CG starts
SourceGoogle introduces Open Knowledge Format
SourceOKF v0.2: provenance, trust, attestation
SourceW3C Introduction Layer CG starts
SourceW3C Typed Context Protocol CG
Reported date · not independently verified
SourceOpen Context Guild opens: where the pieces meet
SourceYour contribution
Six initiatives in eighteen months. The question is no longer whether this layer will exist — but who shapes it.
03 /
Where the pieces meet.
The Context Stack
This is where we work
Contract — unclaimed
- What it solves
- Can an agent prove this context is valid and permitted for this task, independent of platform?
- Use it Monday
- Write down the meaning, owner, permitted task and evidence for one decision.
- Where the Guild contributes
- Context Contract Specification · Semantic Context Blueprint · Portable Semantic Package
04 /
The Two-Agent Test
Watch meaning break
Illustrative scenario — not results from live vendor agents.
What is the theoretical rent of portfolio X for 2026?
Vendor B
Theoretical rent = contracted rent plus vacancy assumptions.
Same data. Different meaning. Nobody noticed.
Run the Two-Agent Test on your own case05 /
Open problems
Blank spots on the map
Context Contract is now on GitHub
Early draft · Comment on an issue to claim it or join in.
Trust ≠ Validity.
A concept can be human-reviewed and still invalid for your task. How do we express that?
Claim on GitHubWhen should an agent stop?
Who decides HALT on missing context: the platform, or the owner of the meaning?
Claim on GitHubPermitted use that travels.
How do usage rights follow context through a chain of three agents?
Claim on GitHubThe Two-Agent Test.
How do we prove two vendors behave the same under one contract?
Claim on GitHubLocal meaning, global agents.
How do national vocabularies (e.g. Dutch NL-SBB) become usable through OKF?
Claim on GitHubNo GitHub account? Claim via email instead.
See all open problems06 /
“Can the same business ontology and the same Context Contract be used, without semantic redesign, by agents on two independent platforms?”
Meaning belongs to the organisation. Help write how agents respect it.
RDFOWLSKOSSHACLPROV-OODCSOPAMCPA2AOpenTelemetryOKF
Landscape reviewed 30 Oct 2026. No affiliation with W3C, Google or listed groups is implied. W3C Community Group output is not a W3C standard.