nx_log_jsonl.nx

nx_log_jsonl.nx -- structured JSONL log line emitter. One line per log entry, JSON-encoded. Consumable by any log aggregator: Loki / Splunk / Elasticsearch / Datadog / `jq`. Standard S-class hosting log shape. Per cardinal feedback-no-third-party-trust-native-or-nothing: substrate's own log emitter; no logrus, no log4j, no syslog SDK. Substrate produces JSON; any consumer reads. Per cardinal feedback-defensive-at-boundaries-trusting-internally: log values are escaped for JSON safety (string escape per RFC 8259 §7) so log-injection attacks via newlines or quotes in user input are structurally prevented. One log line shape: {"ts_ms":12345,"level":"INFO","module":"nx_audit","msg":"hello"}\n Caller can add k=v fields via nx_log_field_str / _int after opening the entry + before closing. Fields are encoded inline: {"ts_ms":1,"level":"WARN","module":"x","msg":"y","retry":3}\n nx_capability_claims: needs: [sealed_enum, bounded_buffer, json_string_escape] provides: [structured_log_emit, log_injection_prevention] safety: [no_unchecked_deref, no_floating_point, no_syscall, bounded_iteration, json_value_escape_at_boundary] verdict: [sealed_enum_4_state_severity + sealed_enum_4_verdict] license: ORIGINAL kind: racing_crew_specialist layer: L3 (algorithm: structured emit)