WebML CG Teleconference – 19 March 2026 - 15:00-16:00 UTC

Latest version: https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md


WebML CG Teleconference – 19 March 2026 - 15:00-16:00 UTC
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#webml-cg-teleconference--19-march-2026---1500-1600-utc>
See the timezone table ...
San Francisco   Thu, 19 March 2026      08:00
Boston  Thu, 19 March 2026      11:00
London  Thu, 19 March 2026      15:00
Berlin  Thu, 19 March 2026      16:00
Helsinki        Thu, 19 March 2026      17:00
Shanghai        Thu, 19 March 2026      23:00
Tokyo   Fri, 20 March 2026      00:00
UTC     Thu, 19 March 2026      15:00 UTC

Other locations: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20260319T15


🤝 Logistics
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#-logistics>

  *   Chair: Anssi
  *   Scribe: Anssi
  *   IRC: irc://irc.w3.org:6667/#webmachinelearning

  *   IRC web client: https://irc.w3.org/?channels=#webmachinelearning

  *   Zoom joining instructions: internal-webmachinelearning<https://lists.w3.org/Archives/Member/internal-webmachinelearning/2023Jun/0000.html>
  *   Minutes: https://www.w3.org/2026/03/19-webmachinelearning-minutes.html


🤖 WebMCP
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#-webmcp>

Tip

Spec<https://webmachinelearning.github.io/webmcp/> | Explainer<https://github.com/webmachinelearning/webmcp/blob/main/README.md> | Issues<https://github.com/webmachinelearning/webmcp/issues> | PRs<https://github.com/webmachinelearning/webmcp/pulls> | Awesome WebMCP<https://github.com/webmachinelearning/awesome-webmcp>

Agentic AI Foundation coordination
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#agentic-ai-foundation-coordination>

Discuss the next steps.

  *   ⨀ webmachinelearning/charter#14<https://github.com/webmachinelearning/charter/issues/14>

Tool unregistration design
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#tool-unregistration-design>

Review the options and agree on the approach.

  *   ⨀ webmachinelearning/webmcp#130<https://github.com/webmachinelearning/webmcp/issues/130>

Declarative integration with form-associated custom elements
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#declarative-integration-with-form-associated-custom-elements>

Discuss early Chromium implementation experience, open questions.

  *   ⨀ webmachinelearning/webmcp#94<https://github.com/webmachinelearning/webmcp/issues/94>

Allow iframes to declare tools
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#allow-iframes-to-declare-tools>

Agree on the use cases.

  *   ⨀ webmachinelearning/webmcp#57<https://github.com/webmachinelearning/webmcp/issues/57>

Cross-document tool response mechanism
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#cross-document-tool-response-mechanism>

Solicit further input on the alternatives.

  *   ⨀ webmachinelearning/webmcp#135<https://github.com/webmachinelearning/webmcp/issues/135>

✍️ Writing Assistance APIs
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#%EF%B8%8F-writing-assistance-apis>

Tip

Spec<https://webmachinelearning.github.io/writing-assistance-apis/> | Explainer<https://github.com/webmachinelearning/writing-assistance-apis/> | Issues<https://github.com/webmachinelearning/writing-assistance-apis/issues> | PRs<https://github.com/webmachinelearning/writing-assistance-apis/pulls>

New parameter to support model tiering in Summarizer
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#new-parameter-to-support-model-tiering-in-summarizer>

Introduce the proposal.

  *   ⨀ webmachinelearning/writing-assistance-apis#96<https://github.com/webmachinelearning/writing-assistance-apis/issues/96>

🌏 Translator and Language Detector APIs
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#-translator-and-language-detector-apis>

Tip

Spec<https://webmachinelearning.github.io/translation-api/> | Explainer<https://github.com/webmachinelearning/translation-api/> | Issues<https://github.com/webmachinelearning/translation-api/issues> | PRs<https://github.com/webmachinelearning/translation-api/pulls>

Definition of "On-Device Models"
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-03-19-cg-agenda.md#definition-of-on-device-models>

Formulate the group's response to the TAG.

  *   ⨀ webmachinelearning/translation-api#72<https://github.com/webmachinelearning/translation-api/issues/72>