avail

name	avail
description	Avail Node—run chains, Kate RPC for data availability, block authoring, and runtime APIs for DA tooling.
metadata	{"author":"hairy","version":"2026.2.24","source":"Generated from https://github.com/availproject/avail, scripts at https://github.com/antfu/skills"}

Skill based on Avail Node (availproject/avail), generated from sources/avail. Doc path: sources/avail/README.md, sources/avail/client/basic-authorship/README.md, sources/avail/e2e/README.md, and node/rpc/runtime source (cli, command, kate-rpc, apis).

Avail is a data-availability layer. The Avail Node is the official Substrate-based client. It supports multiple chains (dev, turing, mainnet), Kate RPC for DA queries (rows, proofs, block length, per-tx data proof), and optional custom block authoring via the basic-authorship client. Use this skill to run nodes, script Kate RPC, integrate with light clients or explorers, and reason about runtime APIs.

Core References

Topic	Description	Reference
Node and chains	Run node, chain IDs (dev, turing, mainnet), Docker, custom chain spec	core-node-and-chains
Kate RPC	Enable Kate RPC, methods (queryRows, queryProof, queryMultiProof, blockLength, queryDataProof), limits	core-kate-rpc

Features

Block authoring and runtime

Topic	Description	Reference
Block authoring	ProposerFactory and Proposer for custom block production (basic-authorship)	features-block-authoring
Runtime APIs	DataAvailApi, KateApi, ExtensionBuilder for DA and header extension	features-runtime-apis

Best Practices

Topic	Description	Reference
Node security	Binary verification, safe RPC usage, when to use unsafe/Kate flags	best-practices-node-security