# Binary evals (5) — max = 5 (1 stable query: express-rate-limit usage examples)

E1 Key sources surfaced [FEATURE]: the official library repo + real example repos, each with ★/tier + path + link.
E2 Key patterns/gotchas surfaced [FEATURE]: the load-bearing pattern (ipKeyGenerator/IPv6) + trust-proxy gotcha + the relevant issue.
E3 No code blocks [BUDGET TARGET]: no fenced code blocks; the pattern is NAMED inline (repo+path+what-it-shows), not pasted.
E4 Lean [TOKEN]: output ≤ 450 tokens (~340 words).
E5 Sources grounded [ACCURACY]: cited repos/stars/issue URLs are real gh results, not fabricated.
