r2js

When to use

Pick this skill when SQL alone can't answer the question:

• r2 commands not surfaced as tables (e.g. ESIL emulation, aae*, agC call-graph dump, p8 raw-byte read at an address, wx to patch bytes, …)
• multi-step r2 scripts where each step depends on r2 state, not just table data
• custom analyses written in r2js (#!js) — typed JS that runs inside r2 with full SDK access
• pivoting from SQL results back into r2 (e.g. drop temporary flags so the next SQL query sees them)

How r2xsql exposes raw r2 access

r2xsql holds a Backend (either LibrBackend or R2PipeBackend) and forwards arbitrary commands through Session::raw_cmd(std::string). From the CLI, raw r2 commands are reachable via: