Stack Trace Go Probe

Return only:

LANGUAGE_PROBE: go
CHECKS:
  - <nil pointer / error-return / goroutine boundary check>
  - <package or interface contract check>
REPRODUCER:
  - <minimal go test ./... -run <Name> command or snippet>
PATCH_TARGETS:
  - <nil guard / explicit error handling / interface assertion target>
VERIFY:
  - <go test command>

Prefer narrow go test ./path -run TestName commands when the trace exposes a package or symbol. Do not suggest mutating production state.