firewall-diff

Rust primitive in the KeiSeiKit substrate.

tagline	Rust primitive in the KeiSeiKit substrate.
language	Rust

# install single binary
$ curl -fsSL keiseikit.dev/primitives/firewall-diff/install.sh | bash

# after install
$ firewall-diff --help

# settings.json snippet
"hooks": {
  "PostToolUse": [
    { "match": "Edit|Write",
      "hooks": ["~/.claude/hooks/firewall-diff.sh"] }
  ]
}

other primitives

Longitudinal user-frustration matrix — regex-based chatlog scan (no ML)

Agent substrate v1 — Capability trait + registry + compose/spawn/verify runtime

Typed artifact handoff pipeline — BMAD-style document pass-between agents with JSON Schema validation