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w3c-cg

43 indexed repositories · View on GitHub

musicxml
MusicXML specification

XSLT · 607 stars
web-advertising
Web Advertising CG - https://www.w3.org/community/web-adv/

HTML · 477 stars
smufl
Standard Music Font Layout

HTML · 258 stars
mnx
Music Notation CG next-generation music markup proposal.

HTML · 226 stars
aria-at
Assistive Technology ARIA Experience Assessment

HTML · 180 stars
dpv
Data Privacy Vocabularies and Controls CG (DPVCG)

HTML · 82 stars
cogai
for work by the Cognitive AI community group

HTML · 80 stars
ai-agent-protocol
Agent Network Protocol White Paper

HTML · 69 stars
N3
W3C's Notation 3 (N3) Community Group

HTML · 55 stars
webagents
Autonomous Agents on the Web (WebAgents) Community Group

HTML · 47 stars
hcls-fhir-rdf
Sketching out an RDF representation for FHIR

HTML · 47 stars
publ-a11y
Accessibility related discussions of the Publishing@W3C Groups

HTML · 40 stars
threat-modeling
Repository for the W3C Threat Modeling Community Group (TMCG)

HTML · 32 stars
opentrack-cg
Open Athletics Community Group

HTML · 32 stars
webmediaapi
Web Media API specification

HTML · 32 stars
publishingcg
Publishing Community Group *** Home for the incubation of publishing standards

HTML · 32 stars
a11y-discov-vocab
Repository for the maintenance of the schema.org accessibility property values for discoverability.

HTML · 31 stars
credweb
Credible Web CG Admin/General

HTML · 26 stars
wot-cg
Web of Things Community Group

JavaScript · 24 stars
musicxmlTestSuite
MusicXML Test Suite (Unofficial) -- Forked from Lilypond

22 stars
23 more repositories live on View on GitHub

Beginner friendly Everything

Open All

Do identity assertions cover delegated subagents, and what per-run record makes them checkable? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/agent-identity#2 · Opened Sep 18, 2026
Clarify and Relabel the Three UCM Semantic Workstreams Open

w3c-cg/ucm#10 · 2 comments · 1 assignee · Opened Sep 18, 2026
Reporting and documenting the use of AI in published documents Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

w3c-cg/publ-a11y#814 · 1 comment · 1 reaction · Opened Sep 17, 2026
Deployment data: TDMRep declarations on 28 of 7,282 observed hosts (frozen 10,667-host sample, Sep 2026) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/tdm-reservation-protocol#62 · Opened Sep 17, 2026
Unable to read Tables in Dark Mode Open

metadata-crosswalk

Difficulty 3/5 1-2 days Newbie friendliness 52/100

w3c-cg/publ-a11y#813 · 5 comments · Opened Sep 16, 2026
Agenda: 2026-09-22 Open

Difficulty 1/5 Under an hour Newbie friendliness 35/100

w3c-cg/threat-modeling#34 · 1 reaction · Opened Sep 15, 2026
Deprecate "Mixed" Content Value Open

Difficulty 1/5 Under an hour Newbie friendliness 90/100

w3c-cg/ai-content-disclosure#38 · Opened Sep 15, 2026
notes Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/agent-identity#1 · Opened Sep 15, 2026
Overlap with Isolated Web Apps Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

w3c-cg/portableweb#8 · 3 reactions · Opened Sep 14, 2026
Recommendation to Roman's Project - State and Status Open

Meeting Agenda Topic

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/ucm#7 · 3 comments · Opened Sep 10, 2026
definition of "Person" to include these nuances as defined in CA SB-1159 Open

Meeting Agenda Topic

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/ucm#6 · 9 comments · Opened Sep 10, 2026
§4: resolution dependency governs verdict evidence, not only the identity document Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

w3c-cg/aikr#10 · 1 comment · Opened Sep 9, 2026
UCM temporal modeling Open

Meeting Agenda Topic

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/ucm#5 · 6 comments · Opened Sep 9, 2026
Feedback: "Request information about a mixed checkbox that is partially checked" (Checkbox (Mixed-State), Test 3, Command "'Control Option F4'", V26.08.26) Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

w3c-cg/aria-at#1411 · 1 comment · Opened Sep 9, 2026
Feedback: "Navigate forwards to a mixed checkbox that is partially checked" (Checkbox (Mixed-State), Test 1, Command "'Control Option Right Arrow then Control Option Right Arrow'", V26.08.26) Open

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

w3c-cg/aria-at#1410 · 2 comments · Opened Sep 9, 2026
Annex B / line 213 — did:moltrust has a registered resolution method Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

w3c-cg/aikr#9 · Opened Sep 9, 2026
[Use case]: A publication that ages with its reader — deafblind reading across a sensory trajectory Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/accessible-syncmedia-pub#10 · Opened Sep 9, 2026
Agenda proposal: Application Capability Threat Model Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/threat-modeling#33 · 3 comments · 1 reaction · Opened Sep 8, 2026
[FIX]: dpv:RightsFulfilment has skos:broader pointing at a legal basis, not a purpose Open

todo

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

w3c-cg/dpv#486 · 2 comments · Opened Sep 7, 2026
External review request: SPD Format 0.1 RC1 Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

w3c-cg/publishingcg#113 · 3 comments · Opened Sep 7, 2026
Run spell checker on docs commit Open

website

Difficulty 3/5 1-2 days Newbie friendliness 65/100

w3c-cg/musicxml#703 · Opened Sep 7, 2026
[FIX]: LOC uses skos:sameAs, which is not a SKOS term Open

todo

Difficulty 3/5 1-2 days Newbie friendliness 55/100

w3c-cg/dpv#485 · 1 comment · Opened Sep 5, 2026
[Use case]: Pre-recorded audio used in conjunction with screen reader Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

w3c-cg/accessible-syncmedia-pub#8 · Opened Sep 4, 2026
[Use case]: Read aloud used in conjunction with screen reader Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

w3c-cg/accessible-syncmedia-pub#6 · Opened Sep 3, 2026
[2027] JPEG-XL Open

Deferred to Next Year

Difficulty 5/5 Over a week Newbie friendliness 30/100

w3c-cg/webmediaapi#428 · 1 reaction · Opened Sep 1, 2026
ShEx import paths are wrong Open

ShEx

Difficulty 3/5 1-2 days Newbie friendliness 55/100

w3c-cg/hcls-fhir-rdf#248 · 2 comments · Opened Aug 30, 2026
ShEx for FHIR "interfaces" Open

ShEx

Difficulty 4/5 3-5 days Newbie friendliness 50/100

w3c-cg/hcls-fhir-rdf#247 · 1 comment · Opened Aug 30, 2026
add linked subjects in Zenodo Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

w3c-cg/sstim#3 · 1 comment · Opened Aug 29, 2026
Document the canonical way to test concept membership Open

help-wanted todo

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

w3c-cg/dpv#484 · Opened Aug 27, 2026
Agenda suggestion - best practices for interlinking specs and threat models Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

w3c-cg/threat-modeling#32 · 2 comments · Opened Aug 25, 2026
[Use case]: Life-critical public information for residents with disabilities in a nuclear emergency planning zone Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/accessible-syncmedia-pub#5 · Opened Aug 25, 2026
numbers.n3 expected result canonicalizes numeric lexical forms Open

Difficulty 1/5 Under an hour Newbie friendliness 90/100

w3c-cg/N3#237 · Opened Aug 24, 2026
Align positive tests using undeclared empty prefixes with the current specification Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

w3c-cg/N3#235 · 2 comments · 1 reaction · Opened Aug 24, 2026
Parser evaluation results still contain pre-move w3c.github.io base IRIs Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

w3c-cg/N3#234 · Opened Aug 24, 2026
[Conformance] Phase 1 negative case: preserve observed-root cardinality through computation Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/ai-computed-provenance#1 · Opened Aug 23, 2026
Formalize the `<glyph>` type Open

semantics smufl

Difficulty 5/5 Over a week Newbie friendliness 35/100

w3c-cg/musicxml#696 · Opened Aug 22, 2026
TPAC Breakout: ARIA-AT Test Writing Workshop Open

Agenda+Test Writing

w3c-cg/aria-at#1402 · 1 assignee · Opened Aug 18, 2026
AI in ARIA-AT Open

Agenda+Test Writing

w3c-cg/aria-at#1401 · 1 assignee · Opened Aug 18, 2026
Two gaps we hit publishing an MNX converter: what the file is called, and what wrote it Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/mnx#547 · 6 comments · 2 reactions · Opened Aug 17, 2026
[Use case]: Blind student must use audio and their screen reader with TTS and braille Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/accessible-syncmedia-pub#4 · Opened Aug 17, 2026
Agent Identity: define what a counterparty verifier MUST check, and what happens when appraisal fails Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

w3c-cg/ai-agent-protocol#44 · 11 comments · Opened Aug 16, 2026
catchall for ShEx validity Open

ShEx

Difficulty 5/5 Over a week Newbie friendliness 32/100

w3c-cg/hcls-fhir-rdf#246 · 2 comments · Opened Aug 16, 2026
invalid fhir:links in four Turtle files Open

Turtle

Difficulty 5/5 Over a week Newbie friendliness 38/100

w3c-cg/hcls-fhir-rdf#245 · 1 comment · Opened Aug 16, 2026
Broken specification link on smufl.org Open

Difficulty 1/5 Under an hour Newbie friendliness 72/100

w3c-cg/smufl#360 · Opened Aug 15, 2026
further define Whole Person Care in an appropriate place Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

w3c-cg/ucm#2 · Opened Aug 14, 2026
Add the concept of a upper level need class, with the ability for the need to be met Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/ucm#1 · Opened Aug 14, 2026
[Spec] Boundary guidance: markup vs. content, CSS/JS scope, and disclosure outside HTML documents Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

w3c-cg/ai-content-disclosure#37 · Opened Aug 14, 2026
Make `staff` overrides parent-relative rather than cascading. Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

w3c-cg/mnx#545 · 3 comments · Opened Aug 13, 2026
Clarify the semantics and cascading behavior of `Sequence::orient` Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c-cg/mnx#544 · Opened Aug 13, 2026
Resolution dependency (Part I §3): PACELC framing + typed integrity/freshness attributes for the trust model Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

w3c-cg/aikr#8 · Opened Aug 12, 2026

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