WebAssembly/WASI

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WebAssembly System Interface

Stars: 5.8k
Forks: 333
Open beginner issues: 0
Indexed issues: 242
Avg merge: 2d 13h
Merged PRs (30d): 3

Dominant language: Rust
License: No license data
Last GitHub push: Sep 8, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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242 open issues indexed

[http] deprecate `request-options` `first-byte-timeout` Open

P-http proposal

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

WebAssembly/WASI#962 · Opened Sep 11, 2026
[http] Request and Response's `new` method is reserved in many languages, inconsistent with sockets. Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

WebAssembly/WASI#961 · Opened Sep 10, 2026
[Triage] P-http backlog sweep Open

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

WebAssembly/WASI#958 · Opened Sep 3, 2026
Consider specifying what should happen when sending a `request` with `path-with-query: none` and `authority` set Open

P-http

Difficulty 4/5 3-5 days Newbie friendliness 48/100

WebAssembly/WASI#949 · Opened Aug 6, 2026
[1.0] Replace `wasi:http@0.3` `handler` / `client` split with single interface using `implements` Open

P-http proposal

Difficulty 4/5 3-5 days Newbie friendliness 48/100

WebAssembly/WASI#948 · Opened Aug 6, 2026
[Pre-proposal] State Continuity Profiles for WebAssembly Components Open

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

WebAssembly/WASI#946 · 1 comment · Opened Jul 27, 2026
p3(http): Consider specifying the list of definitely forbidden field names Open

P-http

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

WebAssembly/WASI#940 · 3 comments · Opened Jul 17, 2026
`proposals/http/wit/deps.toml` should list random Open

P-http

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

WebAssembly/WASI#937 · Opened Jul 4, 2026
How exactly should wasi:filesystem `open-flags` and `descriptor-flags` interact with native open modes/flags? Open

P-filesystem

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

WebAssembly/WASI#936 · 1 comment · Opened Jul 1, 2026
Consider ways to make WIT files more discoverable Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

WebAssembly/WASI#934 · Opened Jun 23, 2026
wasi:filesystem alternative - force guests to do all path resolution Open

P-filesystem

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

WebAssembly/WASI#933 · 13 comments · 1 reaction · Opened Jun 20, 2026
Require OCI-published artifacts as a part of the phase 2 acceptance criteria Open

proposal

WebAssembly/WASI#932 · 1 comment · 1 reaction · 1 assignee · Opened Jun 14, 2026
Proposal: wasi-media Open

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

WebAssembly/WASI#917 · 10 comments · 2 reactions · Opened May 15, 2026
Idea: Content-Addressed Interface Verification for WASI (Hybrid Named/Anonymous Model) Open

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

WebAssembly/WASI#916 · 5 comments · Opened May 3, 2026
Create and maintain the canonical JavaScript WASI P1 implementation Open

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

WebAssembly/WASI#914 · Opened Apr 30, 2026
wasi:filesystem - semantics of file descriptor without permissions Open

P-filesystem

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

WebAssembly/WASI#912 · Opened Apr 16, 2026
wasi:filesystem - correct error when trying to escalate read permissions Open

P-filesystem

Difficulty 4/5 3-5 days Newbie friendliness 42/100

WebAssembly/WASI#911 · Opened Apr 16, 2026
proposals.md still points at the archived repos Open

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

WebAssembly/WASI#909 · Opened Apr 13, 2026
What does `wasi:http/types.fields#set` do if the list of values is empty? Open

P-http

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

WebAssembly/WASI#900 · 2 comments · Opened Mar 10, 2026
wasi:exec Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

WebAssembly/WASI#899 · 5 comments · 3 reactions · Opened Mar 7, 2026
Document wasi:http p3 instance reuse Open

P-http

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

WebAssembly/WASI#898 · 5 comments · Opened Mar 5, 2026
wasip3: Unclear how to implement `poll` for UDP sockets Open

P-sockets

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

WebAssembly/WASI#897 · 17 comments · Opened Mar 5, 2026
Defensively marking enum variants as non-exhaustive for WASI 0.3.0 Open

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

WebAssembly/WASI#892 · 8 comments · Opened Feb 27, 2026
Should WASI attempt to specify any form of resource limits? Open

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

WebAssembly/WASI#890 · 1 comment · Opened Feb 25, 2026
Guests should not be able to force hosts to allocate arbitrary random bytes Open

P-random

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

WebAssembly/WASI#888 · Opened Feb 25, 2026
Hosting WITs via OCI on GHCR is flaky Open

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

WebAssembly/WASI#886 · 2 comments · Opened Feb 24, 2026
native WASI conformance test suite Open

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

WebAssembly/WASI#885 · 1 reaction · Opened Feb 22, 2026
`wkg wit fetch` Not authorized: url https://ghcr.io/v2/webassembly/wasi/cli/tags/list Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

WebAssembly/WASI#873 · 1 comment · Opened Jan 18, 2026
[Feature Request] Raw Socket Support for Network Discovery Use Cases Open

P-sockets

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

WebAssembly/WASI#860 · 2 comments · 4 reactions · Opened Dec 31, 2025
Map `Ctrl+C` to cancellation of the main function Open

P-cli

Difficulty 3/5 1-2 days Newbie friendliness 45/100

WebAssembly/WASI#858 · 8 comments · Opened Dec 27, 2025
clocks: Cannot implement `clock_nanosleep(CLOCK_REALTIME, ...)` in C Open

P-clocks

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

WebAssembly/WASI#857 · 1 comment · 1 reaction · Opened Dec 22, 2025
Setup auto-assigment of issues Open

WebAssembly/WASI#854 · 1 reaction · 1 assignee · Opened Dec 16, 2025
Specify range of valid HTTP response codes Open

P-http

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

WebAssembly/WASI#849 · 3 comments · Opened Dec 10, 2025
Marking timezone as stable in 0.3? Open

P-clocks

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

WebAssembly/WASI#685 · 1 reaction · Opened Oct 6, 2025
[v0.3] Expand documentation of "result of transmission" futures Open

P-http

Difficulty 3/5 1-2 days Newbie friendliness 45/100

WebAssembly/WASI#777 · 2 comments · Opened Oct 3, 2025
Clarify the behavior of `\` in a file name Open

P-filesystem

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

WebAssembly/WASI#708 · Opened Oct 3, 2025
Specify that percent-encoded domain names are unsupported Open

P-http

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

WebAssembly/WASI#778 · 1 comment · 1 reaction · Opened Oct 2, 2025
Specify what happens when IPv6 is unavailable Open

P-http

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

WebAssembly/WASI#779 · 4 comments · Opened Oct 2, 2025
Expected normalization for path-and-query? Open

P-http

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

WebAssembly/WASI#780 · 2 comments · Opened Oct 2, 2025
Expected behavior for method and scheme when passed an `other` with a well-known name Open

P-http

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

WebAssembly/WASI#781 · 1 comment · 1 reaction · Opened Oct 2, 2025
What is a "HTTP Related Scheme" ? Open

P-http

Difficulty 1/5 1-3 hours Newbie friendliness 45/100

WebAssembly/WASI#782 · 1 reaction · Opened Oct 2, 2025
[v0.3] Specify behavior for fields#delete, fields#get-and-delete with invalid field name Open

P-http

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

WebAssembly/WASI#783 · 1 reaction · Opened Oct 1, 2025
Adding an interface to query readiness to accept requests Open

P-http

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

WebAssembly/WASI#784 · 4 comments · Opened Sep 18, 2025
Add record for `tuple<stream<u8>, future<result<_, error-code>>>` Open

P-cli

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

WebAssembly/WASI#753 · 1 reaction · Opened Sep 18, 2025
Remove path flags from `link-at` ? Open

P-filesystem

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

WebAssembly/WASI#710 · 1 comment · Opened Sep 16, 2025
[v0.3] Specify errors for `set-size` Open

P-filesystem

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

WebAssembly/WASI#712 · 1 comment · Opened Sep 11, 2025
[v0.3] When does `DescriptorFlags` get checked? Open

P-filesystem

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

WebAssembly/WASI#714 · 1 comment · Opened Sep 10, 2025
DNS error rcode type Open

P-http

Difficulty 4/5 3-5 days Newbie friendliness 38/100

WebAssembly/WASI#785 · 3 comments · 1 reaction · Opened Sep 8, 2025
Specify semantics with respect to POSIX 2008 Open

P-filesystem

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

WebAssembly/WASI#716 · 2 comments · Opened Sep 8, 2025
Clarify what happens when you open a symlink with NOFOLLOW Open

P-filesystem

Difficulty 4/5 3-5 days Newbie friendliness 42/100

WebAssembly/WASI#718 · 1 comment · Opened Sep 8, 2025

WebAssembly/WASI

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