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If a provided method already exists, the existing one should win (not error)

Status: Open.

#76 In tc39/proposal-first-class-protocols;

· bakkot opened on Jan 8, 2026

Deep protocols: Generalize <code>static</code> by supporting provided members on subobjects?

needs consensus

Status: Open.

#75 In tc39/proposal-first-class-protocols;

· LeaVerou opened on Jan 8, 2026

What is the story for disambiguation?

needs consensus

Status: Open.

#70 In tc39/proposal-first-class-protocols;

· LeaVerou opened on Jan 7, 2026

·  

Jan 2026 plenary

The <code>implements</code> operator should work on instances too

needs specificsConsensus on the idea but it needs to be fleshed out with more concrete details, an algorithm, etc.Consensus on the idea but it needs to be fleshed out with more concrete details, an algorithm, etc.

Status: Open.

#69 In tc39/proposal-first-class-protocols;

· Jamesernator opened on Jan 7, 2026

What should happen if the same member is both required and provided?

needs consensus

Status: Open.

#67 In tc39/proposal-first-class-protocols;

· LeaVerou opened on Jan 7, 2026

·  

Stage 2

interaction with private names

needs spec editsToo low-level for the explainer, but needs to be reflected in the spec (and isn't yet).Too low-level for the explainer, but needs to be reflected in the spec (and isn't yet).

Status: Open.

#66 In tc39/proposal-first-class-protocols;

· michaelficarra opened on Jan 7, 2026

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Stage 2

Defer <code>implemented by</code>?

needs consensus

Status: Open.

#63 In tc39/proposal-first-class-protocols;

· LeaVerou opened on Jan 6, 2026

Can provided members satisfy other protocols?

needs consensus

Status: Open.

#61 In tc39/proposal-first-class-protocols;

· LeaVerou opened on Jan 6, 2026

·  

Jan 2026 plenary

Should protocols be able to implement other protocols? And if so, do we still need <code>extends</code>?

needs consensus

Status: Open.

#60 In tc39/proposal-first-class-protocols;

· LeaVerou opened on Jan 6, 2026

don't allow any required/provided fields to be called constructor/prototype

needs editsWe have a resolution, but it is not yet reflected in the explainerWe have a resolution, but it is not yet reflected in the explainer

Status: Open.

Task

#57 In tc39/proposal-first-class-protocols;

· michaelficarra opened on Jan 1, 2026

·  

Jan 2026 plenary

How to access provided member implementations?

needs consensus

Status: Open.

#55 In tc39/proposal-first-class-protocols;

· LeaVerou opened on Nov 20, 2025

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Jan 2026 plenary

Constructor signature design review / questions

needs consensus

Status: Open.

#52 In tc39/proposal-first-class-protocols;

· LeaVerou opened on Nov 20, 2025

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Jan 2026 plenary