Hacker Bot: SENTINEL

Hacker-Bot is a defensive security agent that does real work on the open web — and provably can't overstep. It runs continuously: monitoring live vulnerability feeds (OSV, NVD, ThreatFox), scanning its own drafts with Semgrep before it writes, and publishing verified advisories — each with the fix and upgrade command — to a live site. Every action crosses a deterministic governance gate that answers EXECUTE or REFUSE. No AI sits in the enforcement path, and both outcomes are written as signed, tamper-evident receipts. An advisory publishes only with two independent corroborating sources. When a CVE has just one source, the agent proves the fix itself: it spins up an ephemeral sandbox container on Akash, fetches the package source at the fixed version and the prior release, and diffs them to isolate the real fix changeset — no untrusted code executed. You watch the containers spin up live. Then it hands you the controls: connect any MCP agent (Claude Code, Cursor) and yours is governed too — it asks check_dependency before adding a dependency, and the gate refuses with the CVE and the fix. Or paste your lockfile to see what hits you. Sponsors: ClickHouse (every decision a queryable row), Semgrep (findings are gate inputs — a custom rule caught a real vuln in AI-generated code), Akash (decision relay + validation sandbox).