challengelisted
Install: claude install-skill martineserios/thebrana
# Challenge
Adversarial review with two modes. **Standard:** three native challenger subagents (convergent · systems · critical) stress-test reasoning, Gemini retrieves documented constraints — all run independently, Claude merges and judges. **Council (`--council`):** Four parallel perspective agents (devil's advocate, optimist, pragmatist, operator) plus Gemini — Claude synthesizes across all five.
**Deep (`--deep`, or auto on high-stakes):** any mode, plus an adversarial **verification stage** — every merged finding is independently re-attacked by N skeptics (`verify-findings` workflow), so plausible-but-wrong findings are dropped to FALSE_POSITIVE and survivors get a calibrated severity before you see them. All agents are native subagents on the subscription — no ruflo, no API key.
1. **Gather context** about what to challenge:
- If `$ARGUMENTS` provided, use it as the description of what to challenge.
- If `$ARGUMENTS` contains `--council`: strip `--council` from the target description, activate **council mode** — step 4a spawns 4 parallel perspective agents instead of one Opus agent. All other steps unchanged.
- If `$ARGUMENTS` contains `--hats`: strip `--hats` from the target description, activate **hats mode** — step 4a spawns 4 parallel hat agents (White/Black/Yellow/Green) instead of hive-mind workers. Mutually exclusive with `--council`; if both present, `--hats` wins.
- If `$ARGUMENTS` contains `--deep`: strip `--deep` from the target description, a