WebML CG Teleconference – 28 May 2026 - 15:00-16:00 UTC

Latest version: https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-cg-agenda.md


WebML CG Teleconference – 28 May 2026 - 15:00-16:00 UTC
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-cg-agenda.md#webml-cg-teleconference--28-may-2026---1500-1600-utc>
See the timezone table ...
San Francisco   Wed, 28 May 2026        08:00
Boston  Wed, 28 May 2026        11:00
London  Wed, 28 May 2026        16:00
Berlin  Wed, 28 May 2026        17:00
Helsinki        Wed, 28 May 2026        18:00
Shanghai        Wed, 28 May 2026        23:00
Tokyo   Thu, 29 May 2026        00:00
UTC     Wed, 28 May 2026        15:00 UTC

Other locations: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20260528T15


Logistics
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-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/2026/05/28-webmachinelearning-minutes.html


Prompt API
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-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>

Model selection and availability
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-cg-agenda.md#model-selection-and-availability>

Discuss Mozilla's feedback and next steps.

  *   ⨀ webmachinelearning/prompt-api#169<https://github.com/webmachinelearning/prompt-api/issues/169>

Sampling modes
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-cg-agenda.md#sampling-modes>

Review the proposal to reduce buckets, possible changes after experimentation.

  *   ⨀ webmachinelearning/prompt-api#203<https://github.com/webmachinelearning/prompt-api/issues/203>

WebMCP
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-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>

WebMCP early wide review update
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-cg-agenda.md#webmcp-early-wide-review-update>

Lay out the plan for Architecture, Security and Privacy reviews.

Hint for reversible or consequential actions
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-cg-agenda.md#hint-for-reversible-or-consequential-actions>

Validate the "off-by-default" model hypothesis with developer feedback, as applicable.

  *   ⨀ webmachinelearning/webmcp#176<https://github.com/webmachinelearning/webmcp/issues/176>

Human in the Loop support for non-browser clients
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-cg-agenda.md#human-in-the-loop-support-for-non-browser-clients>

Review proposed requestUserInput() "interactive", "form" and "url" modes.

  *   ⨀ webmachinelearning/webmcp#165<https://github.com/webmachinelearning/webmcp/issues/165>

registerSkill extension proposal
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-cg-agenda.md#registerskill-extension-proposal>

Discuss the proposal to let pages register skills.

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

How to expose failed declarative tool registration
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-05-28-cg-agenda.md#how-to-expose-failed-declarative-tool-registration>

Solicit feedback.

  *   ⨀ webmachinelearning/webmcp#182<https://github.com/webmachinelearning/webmcp/issues/182>