argotorg/fe

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Emerging smart contract language for the Ethereum blockchain.

Stars: 1.7k
Forks: 218
Open beginner issues: 1
Indexed issues: 110
Avg merge: 1d 1h
Merged PRs (30d): 9

Dominant language: Rust
License: Apache-2.0
Last GitHub push: Sep 17, 2026
Latest indexed: Sep 14, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

Beginner friendly Everything

Open All

101 open issues indexed

[ABI/stdlib] External bool decoder accepts non-canonical returndata: any >=32-byte buffer with leading true-word decodes as true, tail ignored (v26.1.0, v26.2.0) Open

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

argotorg/fe#1539 · 2 comments · Opened Aug 23, 2026
[compiler] Sentinel-initialized scan + StorageMap default: out-of-bounds write at key 16 in compiled 15-puzzle (v26.1.0, v26.2.0) Open

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

argotorg/fe#1538 · Opened Aug 23, 2026
Invariant fuzz tests in Fe Open

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

argotorg/fe#1387 · 1 comment · Opened Apr 7, 2026
fe-web: improve interfaces for website embedding Open

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

argotorg/fe#1375 · Opened Mar 31, 2026
Const generic arithmetic in array types not evaluated during unification Open

Difficulty 4/5 3-5 days Newbie friendliness 58/100

argotorg/fe#1372 · Opened Mar 30, 2026
`invalid(..)` type description in diagnostic Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

argotorg/fe#1367 · Opened Mar 27, 2026
possible cross-ingot symbol collision Open

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

argotorg/fe#1350 · Opened Mar 22, 2026
saturating arithmetic methods don’t work in `const fn` Open

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

argotorg/fe#1349 · Opened Mar 22, 2026
Provide natspec for contracts Open

type: integration

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

argotorg/fe#1337 · Opened Mar 18, 2026
Provide source maps as build artifacts Open

type: integration

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

argotorg/fe#1336 · Opened Mar 18, 2026
Make sure Mac/Windows fe binary installation and IDE extension startup are working Open

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

argotorg/fe#1312 · Opened Mar 2, 2026
confusing error message in `02-types::twice` Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

argotorg/fe#1299 · Opened Feb 27, 2026
need better test messages Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

argotorg/fe#1298 · Opened Feb 27, 2026
Feb 26 workshop notes Open

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

argotorg/fe#1292 · 6 comments · Opened Feb 26, 2026
Build out opentelemetry setup, organize tracing usage Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

argotorg/fe#1265 · 1 comment · Opened Feb 19, 2026
dispatch tree (instead of linear) Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

argotorg/fe#1257 · 2 comments · Opened Feb 17, 2026
fe binary fails wasm32-wasip1 check due to sonatina native deps Open

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

argotorg/fe#1252 · 1 comment · Opened Feb 16, 2026
`#[derive(Clone)]` or similar Open

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

argotorg/fe#1245 · Opened Feb 9, 2026
packed storage Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

argotorg/fe#1241 · Opened Feb 7, 2026
support `size_of<T>()` in `const fn` Open

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

argotorg/fe#1225 · Opened Jan 30, 2026
release blockers [tracking issue] Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

argotorg/fe#1205 · Opened Jan 8, 2026
const/immutable contract fields Open

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

argotorg/fe#1204 · Opened Jan 8, 2026
lib: support sol dynamically-sized abi encode/decode Open

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

argotorg/fe#1203 · Opened Jan 8, 2026
sean's todo list Open

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

argotorg/fe#1197 · Opened Dec 26, 2025
`cargo install fe` Open

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

argotorg/fe#1191 · 2 comments · Opened Dec 19, 2025
don't attempt parser recovery when compiling/checking via the CLI Open

good first issue

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

argotorg/fe#1181 · Opened Dec 11, 2025
parser recovery should be much more conservative Open

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

argotorg/fe#1180 · Opened Dec 11, 2025
fix nondeterministic diagnostic message ordering in tests Open

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

argotorg/fe#1155 · Opened Nov 16, 2025
[ICE] Returning large nested arrays causes StackTooDeep error in Yul backend Open

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

argotorg/fe#1134 · Opened Sep 7, 2025
[ICE] Ternary operator in let binding causes compiler crash Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

argotorg/fe#1133 · Opened Sep 7, 2025
The default return value of u256 is inconsistent with Solidity Open

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

argotorg/fe#1130 · Opened Sep 6, 2025
Fe does not support bytes, which leads to inconsistencies with Solidity. Open

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

argotorg/fe#1129 · Opened Sep 6, 2025
fe-language-server: Reachable panics (DoS) and backtrace leakage via LSP inputs Open

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

argotorg/fe#1124 · 2 comments · Opened Sep 4, 2025
Creating a contract in a factory doesn't actually deploy it on-chain Open

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

argotorg/fe#1114 · Opened Aug 24, 2025
Cleaner platform abstraction (wasm vs wasi) Open

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

argotorg/fe#1091 · Opened May 27, 2025
fe-lang.org official website demo materials missing Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

argotorg/fe#1056 · Opened Feb 5, 2025
[FOLLOW UP] Type check Open

v2

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

argotorg/fe#996 · Opened Apr 23, 2024
Add support for transient storage Open

comp: compiler comp: std-lib good first issue

Difficulty 3/5 1-2 days Newbie friendliness 48/100

argotorg/fe#978 · 8 comments · Opened Jan 29, 2024
[FOLLOW UP] Type system Open

v2

argotorg/fe#940 · 1 assignee · Opened Oct 10, 2023
Reconsider salsa recovery fn usage Open

v2

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

argotorg/fe#939 · Opened Oct 10, 2023
Missing array index OOB check Open

comp: analyzer type: bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

argotorg/fe#877 · Opened Apr 21, 2023
Compilation time increases too much with array's size Open

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

argotorg/fe#835 · 1 comment · 2 reactions · Opened Jan 17, 2023
Meta: Language design Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

argotorg/fe#829 · 7 comments · 3 reactions · Opened Dec 7, 2022
Copying a small string into a larger string container copies data beyond the end of the small string Open

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

argotorg/fe#814 · 1 comment · Opened Nov 16, 2022
Allow `mut` function parameters of primitive type Open

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

argotorg/fe#811 · 1 comment · Opened Nov 15, 2022
Support ABI overload for fe contract. Open

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

argotorg/fe#789 · 1 comment · Opened Sep 7, 2022
CI for fe cli Open

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

argotorg/fe#780 · 1 comment · Opened Aug 12, 2022
Add a CI check that fails if we are missing a test for a user error Open

type: ci

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

argotorg/fe#765 · 2 comments · Opened Jul 8, 2022
Create a cron scheduled job that tests producing release binaries Open

type: ci

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

argotorg/fe#761 · Opened Jul 6, 2022
Ingots and artifacts Open

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

argotorg/fe#725 · 1 comment · Opened May 30, 2022

argotorg/fe

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