Agent Skill

Everything on this site can be loaded into a coding agent. The STRK20 skills give Claude Code, Codex, Cursor, and other agents that read the skills format the working knowledge behind these pages - how the pool works, how a dapp asks a wallet to act, how to write the Cairo adapter, and how to drive the SDK:

npx skills add welttowelt/strk20-skills

Then work normally. The skills fire on their own when a task touches STRK20 - you do not invoke them by name.

The four skills

  • strk20-privacy - the router and mental model. Notes, nullifiers, viewing keys, channels, actions and proofs, deposit screening, what is hidden versus public, compliance and auditing, and the ecosystem map. Fires when an agent is choosing an integration route or answering how STRK20 works.
  • strk20-wallet-api - private dapps in TypeScript or React through the Starknet Wallet API: shield and unshield, private transfers, shielded balances, private DeFi calls, and AVNU private swaps. The recommended route for most dapps, where the wallet keeps the viewing keys.
  • strk20-anonymizer-contracts - the Cairo side of private DeFi: the privacy_invoke entry point the pool calls, OpenNoteDeposit returns, the balance-delta idiom, and the swap, Vesu lending, and escrow patterns.
  • strk20-privacy-sdk - for teams building the wallet itself, or backends that hold their own keys: createPrivateTransfers wiring, register, deposit, transfer, withdraw, multi-op batches, shadow accounts, note discovery, and proving configuration.

Each skill is a distilled SKILL.md plus the relevant pages from this site bundled verbatim under references/, so the agent opens the source instead of reconstructing it from memory. Codex metadata ships under agents/openai.yaml.

What they never do

  • Generate or edit Cairo contracts for you. An anonymizer contract stays your team's code to write, review, and audit; the skills carry the reference patterns and the public packages. Learn more about Cairo at cairo-lang.org and about anonymizer contracts in Anonymizer Contract Anatomy.
  • Touch key material. Viewing keys, private keys, and secrets belong in env vars, never in files, and never in a prompt.

Check anything load-bearing

The skills bundle a snapshot, and versions, wallet support, and feature status all move. Verify against this site before you rely on a version pin or a support claim.

This site is agent-readable

Agents don't need to parse the app bundle: every page on this site is mirrored as raw Markdown. Start from /llms.txt (index of all pages as .md URLs) or fetch the whole site in one file at /llms-full.txt.

Source, docs, and issues: github.com/welttowelt/strk20-skills (Apache 2.0).