Command:
python tools/lab_falsifier.py --report tools/data/reports/agent_20260507_1042.md --output tools/data/reports/falsifier_20260507_1042.json

Result:
exit=2

Output:
[provider: codex-cli unavailable, next]
[provider: claude-cli unavailable, next]
[provider: openrouter unavailable, next]
[falsifier] chain failed: all providers in chain ['codex-cli', 'claude-cli', 'openrouter'] failed (check codex auth, claude auth, OPENROUTER_API_KEY env)
[falsifier] LLM call failed (exit=1). Conservative: BLOCK.