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IntersectMBO

73 indexed repositories · View on GitHub

cardano-node
The core component that is used to participate in a Cardano decentralised blockchain.

Haskell · 3172 stars
plutus
The Plutus language implementation and tools

Haskell · 1633 stars
essential-cardano
Repository for the Essential Cardano list

734 stars
cardano-db-sync
A component that follows the Cardano chain and stores blocks and transactions in PostgreSQL

Haskell · 319 stars
cardano-ledger
The ledger implementation and specifications of the Cardano blockchain.

Haskell · 298 stars
ouroboros-network
Specifications of network protocols and implementations of components running these protocols which support a family of Ouroboros Consesu...

Haskell · 297 stars
cardano-addresses
Addresses and mnemonic manipulation & derivations

Haskell · 162 stars
mithril
Stake-based threshold multi-signatures protocol

Rust · 155 stars
cardano-base
Code used throughout the Cardano eco-system

Haskell · 106 stars
cardano-cli
This repository contains sources for the command-line interface (CLI) tool for interacting with the Cardano blockchain.

Haskell · 73 stars
cardano-crypto
This repository provides cryptographic libraries that are used in the Byron era of the Cardano node

C · 68 stars
ouroboros-consensus
Implementation of a Consensus Layer for the Ouroboros family of protocols

Haskell · 67 stars
cardano-node-tests
System and end-to-end (E2E) tests for cardano-node.

Python · 59 stars
io-sim
Haskell's IO simulator which closely follows core packages (base, async, stm).

Haskell · 57 stars
lsm-tree
A Haskell library for on-disk tables based on LSM-Trees

Haskell · 54 stars
formal-ledger-specifications
Formal specifications of the Cardano ledger

Agda · 52 stars
bech32
Haskell implementation of the Bech32 address format (BIP 0173).

Haskell · 50 stars
cardano-api
Cardano API

Haskell · 41 stars
cardano-haskell-packages
Metadata for Cardano's Haskell package repository

Shell · 36 stars
cardano-launcher
Shelley cardano-node and cardano-wallet launcher for NodeJS applications

TypeScript · 34 stars
53 more repositories live on View on GitHub

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LeiosDB: detect corrupted endorser blocks on disk
Open
- Is something wrong?
Leios

Difficulty 5/5 Over a week Newbie friendliness 12/100

IntersectMBO/ouroboros-consensus#2517 · Opened Nov 14, 2026

Maintainers usually reply within 2 days
Add in-use Leios release-candidate config values not yet recognized
Open
- Is something wrong?
Difficulty 3/5 Half a day Newbie friendliness 25/100

IntersectMBO/cardano-config#40 · Opened Nov 13, 2026
Test scenario to detect that we use the correct introduction ProtVers in `guardPlutus`
Open
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Difficulty 2/5 1-3 hours Newbie friendliness 62/100

IntersectMBO/cardano-ledger#6276 · Opened Nov 13, 2026

Maintainers usually reply within 1 day
Test scenario to detect that we use the correct Plutus API version for ScriptContext translation logic
Open
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Difficulty 4/5 3-5 days Newbie friendliness 35/100

IntersectMBO/cardano-ledger#6275 · Opened Nov 13, 2026

Maintainers usually reply within 1 day
Test scenario to detect that we use the correct Plutus API version for cost model params
Open
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:detective: testing DijkstraEra plutus

Difficulty 4/5 1-2 days Newbie friendliness 45/100

IntersectMBO/cardano-ledger#6274 · Opened Nov 13, 2026

Maintainers usually reply within 1 day
Test scenario to detect that we use the correct Plutus API version for evaluation
Open
- Is something wrong?
:detective: testing DijkstraEra plutus

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

IntersectMBO/cardano-ledger#6273 · Opened Nov 13, 2026

Maintainers usually reply within 1 day
Test scenario to detect that we use the correct Plutus API version for deserialisation
Open
- Is something wrong?
:detective: testing DijkstraEra plutus

Difficulty 4/5 3-5 days Newbie friendliness 40/100

IntersectMBO/cardano-ledger#6272 · Opened Nov 13, 2026

Maintainers usually reply within 1 day
Test cases for Ledger wiring Plutus language to the wrong version in the Plutus API
Open
- Is something wrong?
:detective: testing DijkstraEra plutus

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

IntersectMBO/cardano-ledger#6271 · Opened Nov 13, 2026

Maintainers usually reply within 1 day
Move policy from governance proposal to action
Open
- Is something wrong?
era:conway

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

IntersectMBO/formal-ledger-specifications#1378 · Opened Nov 13, 2026

Maintainers usually reply within 4 days
PrometheusSimple: per-host connection slot leaks when TimeoutThread lands in the close handler
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 48/100

IntersectMBO/hermod-tracing#28 · Opened Nov 13, 2026
Assess the impact of the client Kubo node acting as a peer
Open
- Is something wrong?
spike :satellite:

Difficulty 5/5 Over a week Newbie friendliness 10/100

IntersectMBO/mithril#3701 · Opened Nov 12, 2026

Maintainers usually reply within 2 days
Implement the terminal user interface of the `mithril-setup signer` command
Open
- Is something wrong?
feature :rocket:

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

IntersectMBO/mithril#3699 · Opened Nov 12, 2026

Maintainers usually reply within 2 days
Implement the discovery and guessing effects of the `mithril-setup` command
Open
- Is something wrong?
feature :rocket:

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

IntersectMBO/mithril#3698 · Opened Nov 12, 2026

Maintainers usually reply within 2 days
Figure out how to use ResourceRegistry for threads spawned by LeiosFetch handlers
Open
- Is something wrong?
Leios

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

IntersectMBO/ouroboros-consensus#2511 · Opened Nov 12, 2026

Maintainers usually reply within 2 days
Label the design-token baseline and link the colour-role slice
Open
- Is something wrong?
documentation enhancement Low Priority

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

IntersectMBO/developer-experience#397 · Opened Nov 11, 2026

Maintainers usually reply within 2 days
Track the deepmerge advisory that has no patched release
Open
- Is something wrong?
Medium Priority Security vulnerabilities

Difficulty 1/5 Under an hour Newbie friendliness 45/100

IntersectMBO/developer-experience#396 · Opened Nov 11, 2026

Maintainers usually reply within 2 days
Decide the Mesh CIP-30 tutorial before the stale bot closes it
Open
- Is something wrong?
documentation Medium Priority

Difficulty 1/5 Under an hour Newbie friendliness 20/100

IntersectMBO/developer-experience#395 · Opened Nov 11, 2026

Maintainers usually reply within 2 days
Pin the tutorial verification set before the stale job closes it
Open
- Is something wrong?
documentation Medium Priority

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

IntersectMBO/developer-experience#394 · Opened Nov 11, 2026

Maintainers usually reply within 2 days
upgradeTimelock re-encoding splits LSM and InMemory nodes after Dijkstra
Open
- Is something wrong?
DijkstraEra Leios

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

IntersectMBO/cardano-ledger#6267 · 1 reaction · Opened Nov 10, 2026

Maintainers usually reply within 1 day
Dijkstra’s reordering of POOLREAP and SNAP lets SPOs raise margin without warning delegators
Open
- Is something wrong?
DijkstraEra Leios

Difficulty 4/5 3-5 days Newbie friendliness 43/100

IntersectMBO/cardano-ledger#6266 · Opened Nov 10, 2026

Maintainers usually reply within 1 day
Update `evalTxExUnitsWithLogs` to support Dijkstra sub-transactions
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 48/100

IntersectMBO/cardano-ledger#6265 · Opened Nov 10, 2026

Maintainers usually reply within 1 day
Stacked signatures causes node-to-node disconnections
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 42/100

IntersectMBO/dmq-node#82 · 1 reaction · Opened Nov 10, 2026
[BUG] - Leios mempool promotion retains a stale horizon and rejects valid Plutus transactions
Open
- Is something wrong?
bug Leios prototype

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

IntersectMBO/ouroboros-consensus#2504 · Opened Nov 10, 2026

Maintainers usually reply within 2 days
Add Leios announcement send and recv age limits
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 30/100

IntersectMBO/cardano-config#39 · Opened Nov 10, 2026
new_committee is a dead table: drop it, or keep it and document it as unused?
Open
- Is something wrong?
bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

IntersectMBO/cardano-db-sync#2189 · Opened Nov 9, 2026
Missing `fs-sim-0.5.0.0` and `fs-sim-0.5.0.1` tags
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 35/100

IntersectMBO/fs-sim#137 · Opened Nov 9, 2026
`source-repository this` for `fs-sim-0.5.0.1` is wrong
Open
- Is something wrong?
Difficulty 1/5 Under an hour Newbie friendliness 45/100

IntersectMBO/fs-sim#136 · Opened Nov 9, 2026
Missing documentation on Hackage for `fs-sim-0.5.0.1`
Open
- Is something wrong?
Difficulty 2/5 1-3 hours Newbie friendliness 35/100

IntersectMBO/fs-sim#135 · Opened Nov 9, 2026
Use `ubuntu-26.04` in CI
Open
- Is something wrong?
bug github_actions priority: low

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

IntersectMBO/lsm-tree#895 · Opened Nov 9, 2026
Document colour roles in the brand baseline, and resolve the gradient and alpha restrictions it contradicts
Open
- Is something wrong?
documentation

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

IntersectMBO/developer-experience#376 · Opened Nov 6, 2026

Maintainers usually reply within 2 days
Normalise session archive routes: mixed slug and folder-path URLs, duplicate session 14
Open
- Is something wrong?
documentation Low Priority

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

IntersectMBO/developer-experience#375 · Opened Nov 6, 2026

Maintainers usually reply within 2 days
Make zapping tests fail when a zapped example validates successfully against Huddle
Open
- Is something wrong?
:detective: testing cddl

Difficulty 4/5 3-5 days Newbie friendliness 46/100

IntersectMBO/cardano-ledger#6261 · Opened Nov 6, 2026

Maintainers usually reply within 1 day
Give custom generators access to the constraints
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 43/100

IntersectMBO/cuddle#223 · Opened Nov 6, 2026
TxSubmission2 decodes unbounded duplicate txs in MsgReplyTxs
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 43/100

IntersectMBO/ouroboros-network#5472 · Opened Nov 5, 2026

Maintainers usually reply within 4 days
TxSubmission2 decodes oversized txs before maxTxSize is checked
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 48/100

IntersectMBO/ouroboros-network#5471 · Opened Nov 5, 2026

Maintainers usually reply within 4 days
Add hand-written decoder tests for `bounded_bytes`
Open
- Is something wrong?
:detective: testing cddl

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

IntersectMBO/cardano-ledger#6259 · Opened Nov 5, 2026

Maintainers usually reply within 1 day
IOSim: timeout can return while its assasin threas is still ailve
Open
- Is something wrong?
bug

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

IntersectMBO/io-sim#271 · 3 comments · Opened Nov 4, 2026
db-sync stuck in crash loop: deeply nested tx metadata causes `stack depth limit exceeded` on `tx_metadata` insert (Preview)
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 52/100

IntersectMBO/cardano-db-sync#2187 · 1 comment · Opened Nov 4, 2026
Trip the IPFS circuit breaker only when the Kubo node is unreachable in the client
Open
- Is something wrong?
feature :rocket:

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

IntersectMBO/mithril#3680 · Opened Nov 4, 2026

Maintainers usually reply within 2 days
Monitor the IPFS traffic served by the aggregator Kubo node and by third-party peers
Open
- Is something wrong?
monitoring :eyes:

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

IntersectMBO/mithril#3679 · Opened Nov 4, 2026

Maintainers usually reply within 2 days
Guess the Mithril signer and DMQ node parameters for the `mithril-setup` command
Open
- Is something wrong?
feature :rocket:

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

IntersectMBO/mithril#3678 · Opened Nov 4, 2026

Maintainers usually reply within 2 days
Prepare Mithril for Cardano Dijkstra hard fork
Open
- Is something wrong?
roadmap :compass:

Difficulty 5/5 Over a week Newbie friendliness 8/100

IntersectMBO/mithril#3673 · Opened Nov 2, 2026

Maintainers usually reply within 2 days
Certificate chain optimization
Open
- Is something wrong?
roadmap :compass:

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

IntersectMBO/mithril#3672 · Opened Nov 2, 2026

Maintainers usually reply within 2 days
Mainnet KES-period calculation ignores Byron slot duration
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 30/100

IntersectMBO/kes-agent#109 · Opened Oct 31, 2026
Leios: copies of a vote from different peers are each BLS-verified
Open
- Is something wrong?
Leios

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

IntersectMBO/ouroboros-consensus#2474 · Opened Oct 30, 2026

Maintainers usually reply within 2 days
Define new type `Environment` of the `LEDGER` rule from Conway onwards
Open
- Is something wrong?
:cake: good first issue :credit_card: technical-debt maintenance

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

IntersectMBO/cardano-ledger#6238 · Opened Oct 29, 2026

Maintainers usually reply within 1 day
Canonical float equality does not conform to RFC8949
Open
- Is something wrong?
Difficulty 4/5 3-5 days Newbie friendliness 48/100

IntersectMBO/cuddle#217 · Opened Oct 29, 2026
Support the Kubo RPC API authentication in the client
Open
- Is something wrong?
feature :rocket:

Difficulty 4/5 3-5 days Newbie friendliness 54/100

IntersectMBO/mithril#3656 · 1 assignee · Opened Oct 28, 2026

Maintainers usually reply within 2 days
Migrate the npm packages publication to trusted publishing
Open
- Is something wrong?
CI/CD :factory:

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

IntersectMBO/mithril#3654 · Opened Oct 28, 2026

Maintainers usually reply within 2 days
[BUG] - Dijkstra: missing local-submission support for intentionally phase-2-invalid transactions after CIP-0167
Open
- Is something wrong?
Dijkstra PV12 needs triage type: regression

Difficulty 5/5 Over a week Newbie friendliness 12/100

IntersectMBO/cardano-node#6748 · Opened Oct 27, 2026

Maintainers usually reply within 1 day

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