WebML CG Teleconference – 16 April 2026 - 15:00-16:00 UTC

Latest version: https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-04-16-cg-agenda.md


WebML CG Teleconference – 16 April 2026 - 15:00-16:00 UTC
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-04-16-cg-agenda.md#webml-cg-teleconference--16-april-2026---1500-1600-utc>
See the timezone table ...
San Francisco   Wed, 16 April 2026      08:00
Boston  Wed, 16 April 2026      11:00
London  Wed, 16 April 2026      16:00
Berlin  Wed, 16 April 2026      17:00
Helsinki        Wed, 16 April 2026      18:00
Shanghai        Wed, 16 April 2026      23:00
Tokyo   Thu, 17 April 2026      00:00
UTC     Wed, 16 April 2026      15:00 UTC

Other locations: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20260416T15


🤝 Logistics
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-04-16-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/2026/04/16-webmachinelearning-minutes.html


🤖 WebMCP
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-04-16-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>

WebExtensions API to enumerate and invoke tools
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-04-16-cg-agenda.md#webextensions-api-to-enumerate-and-invoke-tools>

Discuss and clarify the group's position on WebMCP <-> WebExtensions interaction. Hear the latest from the WebExtensions group F2F.

  *   ⨀ webmachinelearning/webmcp#74<https://github.com/webmachinelearning/webmcp/issues/74>

registerSkill extension proposal
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-04-16-cg-agenda.md#registerskill-extension-proposal>

Discuss the proposal to let pages register skills.

  *   ⨀ webmachinelearning/webmcp#161<https://github.com/webmachinelearning/webmcp/issues/161>

Cross-document tool response mechanism
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-04-16-cg-agenda.md#cross-document-tool-response-mechanism>

Solicit further input on the alternatives.

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

Internationalization considerations
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-04-16-cg-agenda.md#internationalization-considerations>

Discuss i18n issues.

  *   ⨀ webmachinelearning/webmcp#153<https://github.com/webmachinelearning/webmcp/issues/153>

✍️ Writing Assistance APIs
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-04-16-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>

Summarizer preference parameter
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-04-16-cg-agenda.md#summarizer-preference-parameter>

Review the PR.

  *   ⛙ webmachinelearning/writing-assistance-apis#102<https://github.com/webmachinelearning/writing-assistance-apis/pull/102>

💬 Prompt API
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-04-16-cg-agenda.md#-prompt-api>

Tip

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

Prompt API is slated to ship in Chrome. Discuss, identify and triage any TAG feedback issues that are both actionable and have a possible interoperability impact.

  *   ⨀ https://github.com/webmachinelearning/prompt-api/labels/tag-tracker