WebML CG Teleconference – 19 February 2026 - 16:00-17:00 UTC

Latest version: https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-02-19-cg-agenda.md


WebML CG Teleconference – 19 February 2026 - 16:00-17:00 UTC
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-02-19-cg-agenda.md#webml-cg-teleconference--19-february-2026---1600-1700-utc>

Important

⏰ This Community Group (CG) meeting takes place 1 hour later than earlier per the group decision<https://www.w3.org/2026/01/22-webmachinelearning-minutes.html#8b98>. We will use this new meeting time until further notice. The Working Group (WG) meeting schedule will not change.

See the timezone table ...
San Francisco   Wed, 19 February 2026   08:00
Boston  Wed, 19 February 2026   11:00
London  Wed, 19 February 2026   16:00
Berlin  Wed, 19 February 2026   17:00
Helsinki        Wed, 19 February 2026   18:00
Shanghai        Thu, 20 February 2026   00:00
Tokyo   Thu, 20 February 2026   01:00
UTC     Wed, 19 February 2026   16:00 UTC

Other locations: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20260219T16


🤝 Logistics
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-02-19-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/2026/02/19-webmachinelearning-minutes.html


🤖 WebMCP
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-02-19-cg-agenda.md#-webmcp>

Tip

Spec Draft Community Group Report<https://webmachinelearning.github.io/webmcp/>

Explainers main<https://github.com/webmachinelearning/webmcp/blob/main/README.md> | SW<https://github.com/webmachinelearning/webmcp/blob/main/docs/service-workers.md> | declarative<https://github.com/webmachinelearning/webmcp/pull/76> | API<https://github.com/webmachinelearning/webmcp/blob/main/docs/proposal.md> | Security and Privacy<https://github.com/webmachinelearning/webmcp/blob/main/docs/security-privacy-considerations.md>

Early implementation<https://github.com/MiguelsPizza/WebMCP> experience<https://github.com/jasonjmcghee/WebMCP> and more<https://chromium-review.googlesource.com/q/WebMCP>

State of the Union
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-02-19-cg-agenda.md#state-of-the-union>

Discuss WebMCP spec draft priorities, recent implementation progress, areas where the participants' contributions/review/research/implementation experience is the most welcome to maximize our collective thrust.

  *   ☰ https://webmachinelearning.github.io/webmcp/


Updated declarative proposal
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-02-19-cg-agenda.md#updated-declarative-proposal>

Review the updated declarative proposal and discuss changes from the initial version.

  *   ⨀ webmachinelearning/webmcp#22<https://github.com/webmachinelearning/webmcp/issues/22>
  *   ⛙ webmachinelearning/webmcp#76<https://github.com/webmachinelearning/webmcp/pull/76>

Discuss any new spec issues and implementation feedback for declarative:

  *   🏷️ https://github.com/webmachinelearning/webmcp/labels/declarative

  *   ⛭ https://chromium-review.googlesource.com/q/WebMCP


Agent allowlist
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-02-19-cg-agenda.md#agent-allowlist>

Discuss the "agent allowlist" proposal to give more agency to the user and web author per the priority of constituencies<https://www.w3.org/TR/design-principles/#priority-of-constituencies>.

  *   ⨀ webmachinelearning/webmcp#51 (comment)<https://github.com/webmachinelearning/webmcp/issues/51#issuecomment-3893594368>

Stream Tool Arguments
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-02-19-cg-agenda.md#stream-tool-arguments>

Discuss the proposal to stream chunks into page UI as the model generates them.

  *   ⨀ webmachinelearning/webmcp#82<https://github.com/webmachinelearning/webmcp/issues/82>

WebExtensions API to enumerate and invoke tools
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-02-19-cg-agenda.md#webextensions-api-to-enumerate-and-invoke-tools>

Introduce the proposal and its use cases.

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

WebMCP <-> MCP Apps bridge
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-02-19-cg-agenda.md#webmcp---mcp-apps-bridge>

Continue discussion<https://www.w3.org/2026/02/05-webmachinelearning-minutes.html#e509> on capability delegation and other related considerations.

  *   ⨀ webmachinelearning/webmcp#57<https://github.com/webmachinelearning/webmcp/issues/57>
  *   ☰ MCP Apps https://modelcontextprotocol.io/docs/extensions/apps


Support file attachments via imperative WebMCP API
<https://github.com/webmachinelearning/meetings/blob/main/telcons/2026-02-19-cg-agenda.md#support-file-attachments-via-imperative-webmcp-api>

Discuss the proposal to support file attachments to streamline workflows.

  *   ⨀ webmachinelearning/webmcp#81<https://github.com/webmachinelearning/webmcp/issues/81>