About the workshop
From acting agents to a shared research agenda
Agentic AI systems—autonomous agents capable of planning, reasoning, and acting on behalf of users—are rapidly moving from prototypes into the world. That shift raises urgent questions of reliability, autonomy, accountability, and governance, especially when agents operate over personal and enterprise data.
Personal Knowledge Graphs (PKGs) offer a promising foundation: explicit, machine-readable representations of context, policies, and provenance. Building on a successful Dagstuhl Seminar and prior TAPAI/TAAPAAI editions at ISWC and ESWC, this Barstuhl workshop convenes the community to consolidate architectures, decentralized ecosystems, and governance models for agentic systems grounded in semantic technologies.
The format is discussion-first. The primary contribution is not a proceedings volume, but a co-created research agenda, a map of open challenges, and a common conceptual foundation that places the Semantic Web community at the forefront of PKG-based agentic AI.
Motivation
Five challenges that need a community
Agentic AI is moving from systems that generate outputs to systems that act in complex environments. Centralized infrastructures risk undermining data sovereignty. The field still lacks shared architectures, conceptual frameworks, and interoperability standards for PKG-based agentic AI. These challenges are socio-technical—and best tackled in a Dagstuhl-style room.
Architectures for PKG-based agentic systems
How should a personal knowledge graph sit inside an agent loop—planning, memory, tool use, and action? We need reference architectures that make context, policies, and provenance first-class, and that scale from a single personal agent to families of collaborating systems.
Themes
Explore the topic space
A selective set of themes at the intersection of PKGs, agentic AI, and governance. Filter a cluster, then open any topic for a short framing.
Selected theme
Workshop format
A Barstuhl afternoon
Named for Bari’s turn as host, Barstuhl borrows the Dagstuhl seminar spirit: interaction over presentations, collective sense-making over a packed talk list, and artifacts the community can take home.
Arrive with a point of view
We open with framing from the organizers, two short invited provocations, and lightning talks from the room. Submit a one-slide proposal in PPTX or PDF if you would like to speak.
- Background and motivation
- Two invited talks (15 minutes each)
- Lightning talks from accepted one-slide proposals
Thi nk together, then rotate
Thematic breakouts and a rotating discussion groups let mixed groups of Semantic Web, AI, policy, and industry voices work the same questions from different angles, then reconvene.
- Thematic breakout sessions
- Rotating discussions
- Plenary consolidation with live maps and clusters
Leave with a shared artifact
The afternoon closes by turning discussion into a draft research agenda: challenges, terminology, standardization priorities, and a vision the community can keep building after Bari.
- Roadmapping and consensus-building
- Documented on this website and in follow-up writing
- Seeds for collaborations and joint proposals
Schedule
Half-day Program
Introduction and framing
Organizers set the Barstuhl brief: why PKG-based agentic AI, and what we intend to leave with.
Invited talks
Two 15-minute provocations.
Lightning talks
Short talks from participants. Submit a one-slide proposal (PPTX or PDF) via the Google Form.
Coffee break
Breakout session 1
Working groups on key themes: architectures, accountability, autonomy, coordination, and interoperability.
Breakout session 2
Rotations so every group inherits (and pressure-tests) another table’s notes.
Plenary synthesis
Live visual artifacts: maps, clusters, and contested terms brought back to the full room.
Roadmapping and outcomes
Capture the draft agenda, manifesto fragments, and follow-ups before we leave the room.
Expected results
What we will make together
Outputs will be documented on this website and carried into follow-up publications and joint proposals.
Challenge map
A map of key challenges and future research directions for PKG-based agentic AI.
Shared language
A conceptual framework and terminology alignment the community can actually use.
Interop priorities
Identification of standardization and interoperability work that should come next.
Vision / manifesto
A draft vision document for the field, continuing the TAAPAAI series.
Collaborations
New collaborations, follow-up initiatives, and seeds for joint proposals.
Call for participation
Submit Your Ideas!
Barstuhl is open to ISWC attendees. We especially welcome Semantic Web and Knowledge Graph researchers, AI and agentic-systems researchers, experts in decentralization, data governance and policy, industry practitioners building agent-based systems, and early-career researchers.
Anyone interested in participating should submit a talk proposal as a single slide, in PPTX or PDF, via the Google Form.
Submit a one-slide talk proposal-
Semantic Web & Knowledge Graphs Researchers shaping PKG models, reasoning, and provenance.
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AI and agentic systems People building agents that plan, remember, and act.
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Decentralization, governance & policy Solid, sovereignty, GDPR, and the EU AI Act in practice.
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Industry practitioners Teams shipping agent-based products who need governable context.
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Early-career researchers & PhD students A focused room in which to help set the next agenda.
Chairs
