ChainSafe

Universal code-review framework at ChainSafe — language-agnostic principles plus the two reviewer modes (operator-reviewing-agent and agent-reviewing-PR). Use this skill whenever the user is reviewing a PR, asking for a code review, checking how to review,…

How to open and shepherd a pull request at ChainSafe — language-agnostic PR authoring guidance. Use this skill whenever the user is opening a PR, drafting a PR description, deciding how to scope a PR, handling reviewer comments, structuring commits within a…

Research-first coding workflow that gates ALL non-trivial code changes behind a human-approved written plan. Use this skill whenever the user asks for any substantive code change — implementing a feature, refactoring, fixing a multi-file bug, adding an…

Architectural guidance for designing Zig modules and libraries at ChainSafe (lodestar-z — Zig consensus libraries for Lodestar: SSZ, Merkleization, hashing, persistent Merkle trees, consensus types). Use this skill whenever the user is starting a new Zig…

Idiomatic Zig development at ChainSafe — implementation-level guidance for writing Zig in lodestar-z (SSZ, Merkleization, hashing, consensus types) and other Zig libraries. Use this skill whenever the user is writing Zig, debugging Zig, picking between Zig…

Language-specific PR review for Zig code at ChainSafe (lodestar-z — consensus-critical Zig: SSZ, hashTreeRoot, Merkleization, hashing). Use this skill whenever the user is reviewing a Zig PR, asking for Zig code review, checking Zig for common mistakes,…

Architectural guidance for designing Go services and systems at ChainSafe (Gossamer and Go projects). Use whenever the user starts a new Go service, designs a Go module, writes an ADR for Go work, picks concurrency patterns, decides on a public API surface,…

Idiomatic Go development at ChainSafe — implementation-level guidance for writing Go code in Gossamer and other Go projects. Use this skill whenever the user is writing Go code, asking how to do something in Go, debugging Go, picking between Go patterns at…

Run Ethereum multi-client devnets using Kurtosis and the ethpandaops/ethereum-package. Use for spinning up local testnets, validating cross-client interop, testing fork transitions, running assertoor checks, debugging CL/EL client interactions, or verifying…

Debug Lodestar beacon node issues by running a local mainnet node with checkpoint sync and engineMock. Use for investigating networking bugs, peer discovery issues, identify failures, metrics anomalies, or any behavior that needs real-world peer interactions…

Write Lodestar release notes and Discord announcements for new versions. Use when cutting a new release, drafting announcement text, or updating the GitHub release body. Covers header text, Discord announcement, and changelog formatting. Requires access to…

Use when comparing Ethereum consensus client implementations, looking up how a specific client implements a spec feature, checking client activity (PRs, issues, releases), or understanding architectural differences between Lodestar, Lighthouse, Prysm, Teku,…

Search the Ethereum R&D Discord Archive for protocol discussions. Use when looking up what was discussed about a specific topic (ePBS, PeerDAS, inclusion lists, etc.), finding decisions made in Eth R&D Discord, or tracking research conversations. Requires a…

Use when working on Ethereum protocol development, consensus layer, execution layer, beacon chain, EIPs, networking, or any Ethereum R&D topic. Provides reference lookup across specs, APIs, research forums, and governance resources.