BLACK_WALL pre-action guardrail for Hermes Agent (NousResearch). Hooks pre_tool_call to call forecast() before any tool runs; blocks STOP verdicts; auto-reports outcomes via observe(). Decision receipts are Ed25519-signed and verifiable offline.
Python client for BLACK_WALL — pre-action risk gate for AI agents. Call forecast() before any irreversible action; observe() to close the loop. Zero dependencies; stdlib-only.
