samvallad33/vestige

Vestige is a fail-closed runtime firewall for AI agents. The model proposes, a deterministic gate decides, and every action leaves a receipt. When something breaks, causal_walk finds the real cause.
The problem
Agents run rm -rf, force-push, drop tables, and overwrite .env on their own, and nothing stops them. When something breaks, similarity search finds lookalikes, not causes.
Vestige Operator
Click the picture to watch the full film.
Operator Lite is free and stays free. Vestige Operator is the owner's version of the same gate: $149 once, and every later version is yours at no charge, with laws you write, a Board of today's stops, and a weekly Letter of what your agents tried and what stopped them. You download a small archive the moment you pay; from an installed Operator Lite, upgrade --install unpacks it and starts the wizard.
Buy Vestige Operator
Quick start
Operator Lite is the free gate in operator-lite/. It is one file, stdlib only, and it sits on a PreToolUse hook (Claude Code, OpenClaw, or any host with a documented command-hook port).
macOS and Linux:
Windows, in PowerShell, with Python 3.9 or newer:
OpenClaw:
Install copies the gate to ~/.operator/gate, registers the Claude Code hook, and starts in shadow mode, which records every verdict and blocks nothing. It then replays your last 30 days of Claude Code history through the same rules. Nothing in that history is executed. When that looks right, switch it on with mode enforce.
Proof
replay prints a scoreboard. From a made-up history:
- 27 deterministic rules: workspace armor, memory-store protection, destructive SQL, force-push, unreviewed publishes, paid deploys, reverse shells, cloud-metadata endpoints, shell-init poisoning, and MCP argument exfil.
- Shell obfuscation: quote reassembly (r''m), $IFS, $(echo rm) as the program, ANSI-C $'\x72m', base64-decoded pipelines, brace and glob expansion against the live filesystem, subshell time-bombs, session variables, cd tracking, heredocs, and fork bombs.
Operator Lite receipts are hash-chained digests, not signatures. It only blocks what is routed through hooked tools.
Causal root cause
causal_walk walks backward only over recorded edges: commits, tool calls, and memory writes. It does not use embeddings or keyword matching. With no start point it returns needs_report and names what is missing; a walk that finds no cause says why in emptyBecause, from the edges the log holds.
Memory server
The memory server is a Strata signed append-only log. Every write is gated and returns a receipt. Install the latest signed release with one command:
The installer selects the right macOS or Linux archive, verifies its SHA-256 checksum, and installs all four Vestige binaries in ~/.local/bin. Archive names, PATH, flags, and vestige.toml are in the reference.
Guided terminal setup
After the install, run this optional wizard to detect compatible local clients,
choose the ones you want, preserve a backup before it changes a configuration,
and configure the Vestige memory server:
The wizard is cached locally in ~/.local/share/vestige/setup/ (or your