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WebML WG/CG F2F Agenda - TPAC 2025 (Kobe, Japan) #35
Description
Activity
Quoting what is said above to drive the point home:
This is a Living Agenda. Feedback welcome via comments for both TBA topics (To Be Announced) and timing to avoid scheduling conflicts.
@simoneonofri to identify and propose the right experts to participate in the security discussions from the Security Interest Group and Threat Modeling Community Group.
I've added Device selection as a F2F topic we want to build consensus on. This falls under the "new features" session. Thank you @mtavenrath and the NVIDIA team for offering to help with this feature.
Further agenda topic proposals welcome via comments in this issue, or via direct email to me.
@michael-n-cooper, the WebML CG would welcome a11y experts interested in agentic web features to join us at TPAC F2F #35 to discuss how the agentic web feature WebMCP could help improve accessibility. We've now exploring a complementary Declarative API #26 for it and are looking into ARIA mappings. This a11y discussion is currently slated for 11 November 2025 11:00 JST.
We have added a slew of compelling WebNN demos to the "Implementation plans and trials" session on Monday. From this demo session, we'll transition to discuss browser vendors' trial plans, dissect the latest implementation experience across the layers to inform the WebNN spec development.
For WebMCP privacy & security considerations discussion, please familiarize yourself with webmachinelearning/webmcp#45 Credits to @victorhuangwq for this pre-work.
Added to the WebNN customer feedback & collaborations session:
RTC-style workloads with response time requirements webmachinelearning/webnn#898 via @handellm / Google Meet
If we get our calendars aligned, @mgifford, co-chair of the Sustainable Web IG, will join us on Monday afternoon within the 15:30-16:45 JST timebox to discuss important work done in that group. I want us to collaborate on webmachinelearning/webnn#861 and use this F2F as a kick off to connect people interested to work at this impactful intersection of AI & sustainability.
Reacted by Mike GiffordThe WebMCP topics and their priority order for Tuesday have been refined. Please see the first post for the latest agenda. Shout out to @khushalsagar for the triage.
I can join the 15:30-16:45 JST timebox (remotely) alongside @mgifford RE the Sustainable Web IG work.
Reacted by Anssi KostiainenHere's an update on the start and end times and room information (floor map):
Monday: 09:00–16:45 JST, Floor 4 - 403
Tuesday: 09:45–17:30 JST, Floor 4 - 405Please note the Community Group meeting on Tue 11 November starts a bit later, at 9:45 JST, due to morning breakouts. Break and lunch schedule pushed forward accordingly on that day.
Prompt API and Writing Assistance APIs:
- We have added F2F agenda topics for these APIs. Thank you @reillyeon for the triage. Please see the first post for the latest agenda.
Translator and Language Detector APIs and Proofreader API:
- Feedback and use cases from early adopters welcome to help inform the group's priorities. Submit via GH issues:
Group dinner:
The WebNN new features session has received new content:
- WebNN Small Language Model (SLM) Performance Optimization Case Study by @huningxin
- Proposal: API to Separate Graph Building from Weight Loading to Reduce Peak Memory Usage webnn#901 by @mtavenrath
Thank you both for your contributions. I think the new features session is now fully booked. Please feel free to submit additional proposals, we'll put them on the waiting list and may discuss them over the dinner.
@simoneonofri will join us on Monday to discuss threat modeling work that's under way in the Security Interest Group and Threat Modeling Community Group. We continue to build stronger connections with the security-focused groups and experts to further improve security characteristics of the WebNN API.
- added a commit that references this issue
on Nov 27, 2025
Working Group / Community Group F2F
10-11 November 2025 - 00:00-07:45 UTC / 09:00-16:45 JST
Logistics
Agenda
10 November 2025: 🧠 Web Neural Network API
Important
Meeting schedule in Japan Standard Time (JST). Remote participants, please note the meeting may start on 9 November in your timezone.
See the timezone table ...
See also: other locations
09:00(JST) Start👋 Welcome
📘 Charter orientation
Tip
Working Group home | charter
Community Group home | charter
Web Machine Learning umbrella site | GH org
⏳ Spec orientation
Tip
WebNN API spec | explainer | open issues
💡 Case study
⏸️
10:30(JST) BreakDrinks and snacks at Reception Hall, 3F, 4F, 5F.
11:00(JST) Resume✨ New features
ℹ️ Proposed in issue triage
To be discussed schedule allowing:
⏸️
12:30(JST) LunchLunch at Portopia Hotel, South wing, Ohwada 2/3, 1F (map)
13:30(JST) Resume📢 Customer feedback & collaborations
Tip
See WebNN Awasome for community feedback, demos, presentations, samples, testimonials, tutorials, videos, and more. And APIs as ladders essay as food for thought.
TBADiscuss customer feedback, including end-users, frameworks, independent software vendors.Proposed topics:
🤝 Interop and technical cross-group coordination
Tip
WebNN implementation report | wpt test suite | webnn report
TBAInterop issues arising from backend implementation differences that warrant WebNN spec changes.TBATechnical coordination topics with WebGPU, WebAssembly, WebRTC, other groups.🚀 Implementation plans and trials
Tip
WebNN implementation status by:
See also:
Next step for implementations, Origin Trial or equivalent, new requirements or feedback from updates in backends, frameworks.
Kick off this session with demos that exercise diverse hardware accelerators:
Possible discussion topics:
TBABrowser vendors' trials⏸️
15:00(JST) BreakDrinks and snacks at Reception Hall, 3F, 4F, 5F.
15:30(JST) ResumeHorizontals
Get to know experts behind horizontal groups.
😇 Ethics
🌱 Sustainability
🔍 Privacy & Security
Threat Modeling with Privacy and Security (slides) @tjwhalen @simoneonofri
See also:
🫶 Wrap up
⏹️
16:45(JST) End11 November 2025: 🧪 Incubations: WebMCP, Built-in AI APIs
Meeting schedule in Japan Standard Time (JST). Remote participants, please note the meeting may start on 10 November in your timezone.
See the timezone table ...
See also: other locations
09:45(JST) Start👋 Welcome
🤖 WebMCP
Tip
WebMCP main explainer | API proposal | Service Workers explainer | early implementation experience
⏸️
11:00(JST) BreakDrinks and snacks at Reception Hall, 3F, 4F, 5F.
11:30(JST) Resume🤖 WebMCP
Managing action specific permissions webmcp#44
WebMCP accessibility, ARIA mapping via Declarative API: #26 @matatk
Define the API for in-page Agents to use a site's declared tools webmcp#51
Should we support cross-origin Agents across frame boundaries webmcp#52
See also: other
Agenda+issuesOther proposed topics
Working with the Security Interest Group: threat modeling Agentic AI Web Browser @simoneonofri, lethal trifecta @johannhof⏸️
13:00(JST) LunchLunch at Portopia Hotel, South wing, Ohwada 2/3, 1F (map)
14:00(JST) Resume💬 Built-in AI APIs overview
Overview, Origin Trial feedback @michaelwasserman
💬 Prompt API
Tip
Prompt API spec | explainer
✍️ Writing Assistance APIs
Tip
Writing Assistance APIs spec | explainer
⏸️
16:00(JST) BreakDrinks and snacks at Reception Hall, 3F, 4F, 5F.
16:30(JST) Resume🌍 Translator and Language Detector APIs
Tip
Translator and Language Detector APIs spec | explainer
TBA2-3 key open issues🔎 Proofreader API
Tip
Proofreader API explainer
TBA2-3 key open issues🌱 Proposals for new incubations
🫶 Wrap up
⏹️
17:30(JST) End