OpenAgentSkill Registry Manifest Skill: Extension Slug: polkadot-js-extension Category: web3-analytics Description: Simple browser extension for managing Polkadot and Substrate network accounts in a browser. Allows the signing of extrinsics using these accounts. Also provides a simple interface for compliant extensions for dapps. Agent fit: - Decision: 100/100 Production-ready - Primary fit: Coding agents - Role: Primary pick Supply profile: - Track: Coding and developer agents - Scenario: Coding agents - Applicable agents: Claude Code, Browser agents, CLI, Codex, Cursor - Maintenance: 3mo since push - Risk: Safe to try Trust: - Trust score: 91/100 Production candidate - Audit: 91/100 Safe to try Attribution: - Status: Community indexed - Source: GitHub star discovery - Creator: polkadot-js - Claim URL: https://www.openagentskill.com/skills/polkadot-js-extension#claim-this-skill Install: npx skills add polkadot-js/extension URLs: - Web: https://www.openagentskill.com/skills/polkadot-js-extension - API: https://www.openagentskill.com/api/agent/skills/polkadot-js-extension - Install API: https://www.openagentskill.com/api/skills/polkadot-js-extension/install - Repository: https://github.com/polkadot-js/extension