FuelLabs/fuel-specs

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📝 Specifications for the Fuel protocol and the FuelVM, a blazingly fast blockchain VM.

Stars: 1.8k
Forks: 701
Open beginner issues: 0
Indexed issues: 47

Dominant language: No language data
License: Apache-2.0
Last GitHub push: Apr 14, 2026
Latest indexed: Sep 16, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted
PR merge metrics: No merged PRs in 30d

Open All

47 open issues indexed

Consider: Sighash modes Open

comp:FVM enhancement

FuelLabs/fuel-specs#40 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Transaction signature aggregation Open

backlog comp:FVM comp:IVG question

FuelLabs/fuel-specs#88 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Consider reduced-width arithmetic opcodes Open

backlog comp:FVM enhancement question

FuelLabs/fuel-specs#90 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Compressed Address Registries Open

backlog comp:VAL enhancement

FuelLabs/fuel-specs#111 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Allow predicates to load code Open

backlog comp:FVM enhancement

FuelLabs/fuel-specs#119 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Reduce state requirements for registries Open

backlog comp:FVM

FuelLabs/fuel-specs#146 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Canonical signing scheme Open

comp:FVM comp:VAL enhancement

FuelLabs/fuel-specs#148 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
CAIPs Open

FuelLabs/fuel-specs#231 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Specify function selector string format and create a test suite for it Open

documentation

FuelLabs/fuel-specs#242 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Add method payability to ABI Open

ABI help wanted

FuelLabs/fuel-specs#271 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Change static contracts into read-only inputs Open

comp:FVM comp:VAL question

FuelLabs/fuel-specs#280 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Specify how and when state_root updates occur in contract outputs Open

comp:FVM good first issue

FuelLabs/fuel-specs#320 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Document how to interpret the two call parameters Open

ABI

FuelLabs/fuel-specs#358 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 16, 2026
Expand the documentation for `specs/protocol/tx_format.md` to include descriptions of each section Open

documentation good first issue

FuelLabs/fuel-specs#362 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Cap hash inputs with a size limit Open

FuelLabs/fuel-specs#404 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Message root in header Open

FuelLabs/fuel-specs#412 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 16, 2026
Describe `raw_ptr` in the ABI spec Open

ABI

FuelLabs/fuel-specs#429 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
More formal JSON schema for contract ABI Open

ABI documentation enhancement

FuelLabs/fuel-specs#436 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Support for code loading for upgradable contracts and proxying via `LDC`. Open

enhancement help wanted question

FuelLabs/fuel-specs#451 · 14 comments · 1 reaction · 2 assignees · Indexed Sep 16, 2026
[FIP-1] Introduce Non-Fungible Tokens to the UTXO Set Open

FuelLabs/fuel-specs#455 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Change field names to snake_case Open

documentation

FuelLabs/fuel-specs#458 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Make base asset a parameter. Open

FuelLabs/fuel-specs#459 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Constrain witnesses to be unique Open

FuelLabs/fuel-specs#488 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
The new opcode to calculate the `ContractId` or `PredicateId` inside of the script/contract Open

question

FuelLabs/fuel-specs#490 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Prevent gas price manipulation Open

question

FuelLabs/fuel-specs#509 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Add Prettier config file Open

FuelLabs/fuel-specs#515 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Dynamic storage Open

FuelLabs/fuel-specs#517 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
TransactionInput - A Transaction Bundling Input Open

FuelLabs/fuel-specs#522 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Include gas metering details for each opcode Open

FuelLabs/fuel-specs#524 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Transfer coins to free balance opcode Open

FuelLabs/fuel-specs#526 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Smart contract wallets using predicates and NFTs (state minimized approach) Open

documentation

FuelLabs/fuel-specs#527 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
UTXO accumulators for state-minimization [draft] Open

FuelLabs/fuel-specs#528 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Predicate Based Asset IDs Open

documentation enhancement

FuelLabs/fuel-specs#537 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
document all input & output types Open

FuelLabs/fuel-specs#568 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Include forced transactions specification Open

FuelLabs/fuel-specs#572 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
VM Opcode Open

FuelLabs/fuel-specs#573 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Include Message Outbox Specs Open

FuelLabs/fuel-specs#575 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Spent and Unspent UTXO Append-Only Merkle Roots for Fuel Block Header Design Open

FuelLabs/fuel-specs#581 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Investigate EIP-155 -style signature replay protection Open

FuelLabs/fuel-specs#602 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Mismatch in JSON ABI Specs: `message_id` vs. `messageId` Open

ABI documentation

FuelLabs/fuel-specs#603 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
Draft: spending assets based on asset ID not UTXO ID (if there is only one token, i.e. NFT) Open

FuelLabs/fuel-specs#607 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Add "owner" to transaction policies Open

FuelLabs/fuel-specs#617 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
Add new `Destroy` output Open

FuelLabs/fuel-specs#621 · 0 comments · 4 reactions · 1 assignee · Indexed Sep 16, 2026
Change enum's variant field to smaller type Open

ABI

FuelLabs/fuel-specs#622 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
specify the compressed block payload as a result of DA compression Open

FuelLabs/fuel-specs#623 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
VM v2 wishlist (breaking changes) Open

comp:FVM

FuelLabs/fuel-specs#629 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
Add specs for Data Output/Input Open

FuelLabs/fuel-specs#632 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026

FuelLabs/fuel-specs

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