hairyf Skill is based on Arbitrum Nitro (OffchainLabs/nitro), generated from source at the listed date. Main docs live at nitro-docs and developer.arbitrum.io.
Nitro is the current Arbitrum L2 stack: Geth for execution, ArbOS for L2 chain services (bridges, batching, compression), and WASM-based interactive fraud proofs. The Nitro repo contains the node implementation, ADRs, and the BOLD dispute protocol integration; run/build and operator docs are in the external documentation.
Core References
| Topic | Description | Reference |
|---|---|---|
| Nitro overview | Stack (Geth, ArbOS, WASM proofs), where docs live, audits | core-about |
| ADRs | MADR format, templates, adding decisions under docs/decisions/ |
core-decisions-adr |
Features
| Topic | Description | Reference |
|---|---|---|
| Multi-dimensional gas | ResourceKind categories, L1/L2 calldata, WASM (Stylus) metering | features-multidimensional-gas |
| BOLD protocol | Dispute system, assertion poster/scanner, edge trackers, L2 state provider | features-bold-protocol |
Best Practices
| Topic | Description | Reference |
|---|---|---|
| Changelog fragments | Format, sections (Added/Changed/Configuration/Ignored), one file per PR | best-practices-changelog |
| Constraint types (Go) | Avoid primitive constraint wrappers; keep checks at call sites | best-practices-constraint-types |