route-proxy: tell the proxy the private network's range

The proxy serves internal names only to requests from the private network and needs its range to know which those are (novox/hq issue 191).
2026-10-02 01:10:13 +02:00
29 changed files with 448 additions and 1360 deletions
@@ -1,23 +0,0 @@
-# fail2ban's runtime: the tool runtime, carrying the intrusion prevention's verbs and the client they
-# speak through.
-#
-# Built from this module's own directory and nothing else (novox/hq ADR 0069). Two bases, named in
-# module.json's `build.on`: the image this is compiled in and the image it runs in.
-ARG BUILD_BASE
-ARG RUNTIME_BASE
-
-FROM ${BUILD_BASE} AS build
-WORKDIR /app/modules/fail2ban
-COPY . .
-RUN node /app/node_modules/typescript/bin/tsc client.ts tools/index.ts \
-      --module NodeNext --moduleResolution NodeNext --target ES2022 --outDir dist
-
-FROM ${RUNTIME_BASE}
-# The daemon runs on the machine, declared by this module; what runs here is only its client, which
-# speaks to the daemon over the socket the machine shares into this container (novox/hq ADR 0179).
-# The package brings the client and the daemon together; the daemon is never started here.
-RUN apt-get update \
-      && apt-get install -y --no-install-recommends fail2ban \
-      && rm -rf /var/lib/apt/lists/*
-COPY --from=build /app/modules/fail2ban/dist /app/modules/fail2ban/dist
-ENV MESH_TOOL_MODULES=/app/modules/fail2ban/dist/tools/index.js
@@ -1,204 +1,51 @@
-// fail2ban's own code, in the module (novox/hq ADR 0039). The jails are composed by the mesh from
-// the modules a machine runs (to-be 31) and written as declared resources; the daemon is kept
-// running by one. This code exists only to read and steer the *live* state the daemon owns: who is
-// banned now and until when, and the ban or release an operator asks for — the node-intrusion-
-// prevention seat's four verbs (ADR 0179). The daemon's state is fail2ban's, not the mesh's: the
-// mesh composes the jails and never writes the ban list.
-//
-// Spoken through fail2ban-client over the daemon's socket, which the machine shares into this
-// runtime; so the client here is the one from the runtime's own package and the daemon is the
-// machine's, and the two meet at /var/run/fail2ban/fail2ban.sock.
+// fail2ban's own code, in the module (novox/hq ADR 0039). The jails and the daemon are declared
+// resources — the mesh writes /etc/fail2ban/jail.d/* and keeps fail2ban.service running (see
+// module.json). This code exists only to read and steer the *live* state the daemon owns at
+// runtime: which IPs are banned right now, and the manual ban/unban an operator reaches for. That
+// state (the running bans, /var/lib/fail2ban's sqlite) is fail2ban's, not the mesh's — the mesh
+// reconciles the config, never the ban list.

 import { execFile } from "node:child_process";
-import { isIP } from "node:net";
 import { promisify } from "node:util";

-const execFileP = promisify(execFile);
-
-/** A command runner, so the verbs can be tested without a daemon. */
-export type Runner = (cmd: string, args: string[]) => Promise<string>;
-
-export const execRunner: Runner = async (cmd, args) => {
-  try {
-    const { stdout } = await execFileP(cmd, args, { maxBuffer: 16 * 1024 * 1024 });
-    return stdout;
-  } catch (err) {
-    const e = err as { code?: string | number; stderr?: string; stdout?: string; message?: string };
-    const said = `${e.stdout ?? ""}${e.stderr ?? ""}`.trim();
-    if (e.code === "ENOENT") throw new Error(`${cmd} is not in this runtime`);
-    if (/Failed to access socket path|Is fail2ban running/i.test(said)) {
-      throw new Error("fail2ban is not running on this machine, or its socket is not shared with this runtime");
-    }
-    // fail2ban-client's own last line is the one a person reads ("Sorry but the jail 'x' does not exist").
-    const lines = said.split("\n").map((l) => l.trim()).filter(Boolean);
-    throw new Error(lines.length ? lines[lines.length - 1] : (e.message ?? `${cmd} failed`));
-  }
-};
-
-/** One jail as the daemon reports it. */
-export interface JailStatus {
-  jail: string;
-  /** What the jail is reading: files or journal matches, as fail2ban names them. */
-  watching: string[];
-  /** Addresses with failures counted against them right now, and all failures since the jail started. */
-  failing: { now: number; total: number };
-  /** Addresses held right now, and all bans since the jail started. */
-  banned: { now: number; total: number; addresses: string[] };
-}
-
-/** One ban as the daemon holds it. */
-export interface Ban {
-  ip: string;
-  jail: string;
-  /** When the ban was placed, in the machine's local time as fail2ban prints it. */
-  since: string;
-  /** When the ban ends; "never" for a permanent ban. */
-  until: string;
-}
-
-export interface JailSettings {
-  jail: string;
-  bantime: string;
-  findtime: string;
-  maxretry: number;
-  ignoreip: string[];
-  actions: string[];
-  /** The log files the jail reads, when it reads files. */
-  logpath: string[];
-  /** The journal match the jail reads, when it reads the journal. */
-  journalmatch: string;
-}
+const run = promisify(execFile);

 export class Fail2banClient {
-  private readonly run: Runner;
-
-  constructor(run: Runner = execRunner) {
-    this.run = run;
-  }
-
  static fromEnv(_env: NodeJS.ProcessEnv = process.env): Fail2banClient {
    return new Fail2banClient();
  }

-  private client(...args: string[]): Promise<string> {
-    return this.run("fail2ban-client", args);
-  }
-
-  /** The jails the daemon runs, by name. */
-  async jails(): Promise<string[]> {
-    const out = await this.client("status");
-    const m = out.match(/Jail list:\s*(.*)/);
-    if (!m) return [];
-    return m[1].split(",").map((j) => j.trim()).filter(Boolean);
-  }
-
-  /** Every jail with what it watches and holds, or one jail's detail. */
-  async status(jail?: string): Promise<{ jails: JailStatus[] }> {
-    const names = jail ? [jail] : await this.jails();
-    const jails: JailStatus[] = [];
-    for (const name of names) {
-      jails.push(parseJailStatus(name, await this.client("status", name)));
-    }
-    return { jails };
-  }
-
-  /** Every address banned now, with the jail holding it and when the ban ends. */
-  async banned(jail?: string): Promise<{ banned: Ban[] }> {
-    const names = jail ? [jail] : await this.jails();
-    const banned: Ban[] = [];
-    for (const name of names) {
-      banned.push(...parseBans(name, await this.client("get", name, "banip", "--with-time")));
-    }
-    banned.sort((a, b) => a.until.localeCompare(b.until) || a.ip.localeCompare(b.ip));
-    return { banned };
-  }
-
-  /** Ban one address in one jail now. The daemon's own answer is how many addresses it added. */
-  async ban(ip: string, jail: string): Promise<{ banned: Ban | null; added: number }> {
-    address(ip);
-    name(jail);
-    const out = await this.client("set", jail, "banip", ip);
-    const added = Number.parseInt(out.trim(), 10) || 0;
-    const held = (await this.banned(jail)).banned.find((b) => b.ip === ip) ?? null;
-    return { banned: held, added };
-  }
-
-  /** Let one address go, from one jail or from every jail. The daemon's answer is how many it released. */
-  async unban(ip: string, jail?: string): Promise<{ released: number; ip: string; jail: string | "every jail" }> {
-    address(ip);
-    let out: string;
+  /** Overview of every jail, or the detailed status of one — currently-banned IPs and totals. */
+  async status(jail?: string): Promise<string> {
    if (jail) {
-      name(jail);
-      out = await this.client("set", jail, "unbanip", ip);
-    } else {
-      out = await this.client("unban", ip);
+      const { stdout } = await run("sudo", ["fail2ban-client", "status", jail]);
+      return stdout;
    }
-    return { released: Number.parseInt(out.trim(), 10) || 0, ip, jail: jail ?? "every jail" };
+    const { stdout: overview } = await run("sudo", ["fail2ban-client", "status"]);
+    const match = overview.match(/Jail list:\s*(.+)/);
+    if (!match) return overview;
+
+    const jails = match[1].split(",").map((j) => j.trim()).filter(Boolean);
+    const parts: string[] = [overview.trimEnd(), ""];
+    for (const j of jails) {
+      const { stdout } = await run("sudo", ["fail2ban-client", "status", j]);
+      parts.push(`=== ${j} ===`, stdout.trimEnd(), "");
+    }
+    return parts.join("\n");
  }

-  /** One jail's effective settings — the module's own tool, beside the seat's verbs. */
-  async settings(jail: string): Promise<JailSettings> {
-    name(jail);
-    const get = (key: string) => this.client("get", jail, key);
-    const [bantime, findtime, maxretry, ignoreip, actions, logpath, journalmatch] = await Promise.all([
-      get("bantime"), get("findtime"), get("maxretry"), get("ignoreip"), get("actions"), get("logpath"),
-      get("journalmatch"),
-    ]);
-    return {
-      jail,
-      bantime: bantime.trim(),
-      findtime: findtime.trim(),
-      maxretry: Number.parseInt(maxretry.trim(), 10),
-      ignoreip: listed(ignoreip),
-      actions: actions.split("\n").slice(1).map((l) => l.trim()).filter(Boolean),
-      logpath: /No file is currently monitored/.test(logpath) ? [] : listed(logpath),
-      journalmatch: journalmatch.split("\n").slice(1).map((l) => l.trim()).filter(Boolean).join(" "),
-    };
+  /** Manually ban an IP in a jail. Mutates live state, not a mesh-managed file. */
+  async ban(jail: string, ip: string): Promise<string> {
+    const { stdout } = await run("sudo", ["fail2ban-client", "set", jail, "banip", ip]);
+    return stdout;
+  }
+
+  /** Unban an IP from one jail, or from every jail when no jail is given. */
+  async unban(ip: string, jail?: string): Promise<string> {
+    const args = jail
+      ? ["fail2ban-client", "set", jail, "unbanip", ip]
+      : ["fail2ban-client", "unban", ip];
+    const { stdout } = await run("sudo", args);
+    return stdout;
  }
 }
-
-/** fail2ban's tree listings: lines like "|- 127.0.0.0/8" and "`- ::1", after a heading. */
-function listed(out: string): string[] {
-  return out
-    .split("\n")
-    .map((l) => l.replace(/^[\s|`-]+/, "").trim())
-    .filter((l, i) => i > 0 && l.length > 0);
-}
-
-export function parseJailStatus(jail: string, out: string): JailStatus {
-  const field = (label: string) => {
-    const m = out.match(new RegExp(label.replace(/[.*+?^${}()|[\]\\]/g, "\\$&") + ":\\t?\\s*(.*)"));
-    return m ? m[1].trim() : "";
-  };
-  const num = (label: string) => Number.parseInt(field(label), 10) || 0;
-  const watching = [field("File list"), field("Journal matches")].filter(Boolean);
-  return {
-    jail,
-    watching,
-    failing: { now: num("Currently failed"), total: num("Total failed") },
-    banned: {
-      now: num("Currently banned"),
-      total: num("Total banned"),
-      addresses: field("Banned IP list").split(/\s+/).filter(Boolean),
-    },
-  };
-}
-
-/** `get <jail> banip --with-time` prints one ban per line: "IP \tsince + seconds = until". */
-export function parseBans(jail: string, out: string): Ban[] {
-  const bans: Ban[] = [];
-  for (const line of out.split("\n")) {
-    const m = line.match(/^(\S+)\s+(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}) \+ (-?\d+) = (\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}|\S+)/);
-    if (!m) continue;
-    bans.push({ ip: m[1], jail, since: m[2], until: Number(m[3]) < 0 ? "never" : m[4] });
-  }
-  return bans;
-}
-
-function address(ip: string): void {
-  if (!isIP(ip)) throw new Error(`${JSON.stringify(ip)} is not an address`);
-}
-
-function name(jail: string): void {
-  if (!/^[A-Za-z0-9][A-Za-z0-9._-]*$/.test(jail)) throw new Error(`${JSON.stringify(jail)} is not a jail's name`);
-}
@@ -7,25 +7,9 @@
  "claims": [
    {
      "name": "node-intrusion-prevention",
-      "scope": "node",
-      "serves": [
-        "status",
-        "banned",
-        "ban",
-        "unban"
-      ]
+      "scope": "node"
    }
  ],
-  "tools": [
-    "fail2ban_settings"
-  ],
-  "own-secrets": {
-    "broker": "${dir:mesh-state}/broker"
-  },
-  "jailing": {
-    "into": "/etc/fail2ban/jail.d/mesh.conf",
-    "filter-into": "/etc/fail2ban/filter.d"
-  },
  "resources": [
    {
      "id": "package",
@@ -44,37 +28,19 @@
      "path": "/etc/fail2ban/action.d",
      "mode": "0755"
    },
-    {
-      "id": "filter-d",
-      "type": "directory",
-      "path": "/etc/fail2ban/filter.d",
-      "mode": "0755"
-    },
-    {
-      "id": "run-dir",
-      "type": "directory",
-      "path": "/var/run/fail2ban",
-      "mode": "0755"
-    },
-    {
-      "id": "mesh-state",
-      "type": "directory",
-      "mode": "0700",
-      "place": "mesh"
-    },
    {
      "id": "jail-local",
      "type": "file",
      "path": "/etc/fail2ban/jail.local",
      "mode": "0644",
-      "content": "[INCLUDES]\n\nbefore = paths-arch.conf\n\n[DEFAULT]\n\n# Never act on the machine itself or on a tunnel peer: the mesh's private range is\n# ${machine:mesh-range}, named here rather than written as a value the module cannot\n# know (novox/hq ADR 0112). Without this, fail2ban could ban the mesh's own nodes.\n# **A ban list never holds a neighbour.** The mesh's own range is named rather than written\n# (novox/hq ADR 0112), and every private range beside it: a source on one is somebody's own\n# network, not the internet. On a machine behind a router that reflects local traffic, every\n# client in the house arrives as the gateway's address — so one mistyped local request banned\n# 192.168.1.1 on the home server and would have cut the whole house off from it (ADR 0186).\nignoreip = 127.0.0.1/8 ::1 ${machine:mesh-range} 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 169.254.0.0/16 fc00::/7 fe80::/10\n\n# Three failures in a day ban for a day (novox/hq ADR 0179). The attackers this mesh sees pace\n# themselves at one try every ten minutes, under any ten-minute window; a day's window counts\n# them, and a day's ban costs a person who mistyped three times once, from one address, while\n# the mesh's own range is never banned at all.\nbantime  = 1d\nfindtime = 1d\nmaxretry = 3\n\n# Ban through iptables, not through a firewall front-end the machine may not have. ufw is\n# installed on two of this mesh's machines and absent on the other two, and fail2ban finds out\n# only at ban time: the service reports healthy, the jail counts the attempt, the ban command\n# exits 127, and nothing is blocked. Proven on 2026-09-28 -- 'ufw: command not found' on a\n# machine the mesh reported as protected.\n#\n# The action below is this module's own, already used by the recidive jail on every machine\n# here, and it bans in DOCKER-USER as well as INPUT, so a container's published port is\n# covered too.\nbanaction = iptables-allports-dualchain\nbanaction_allports = iptables-allports-dualchain\n\n[sshd]\nenabled = true\nport    = ssh\nlogpath = %(sshd_log)s\nbackend = %(sshd_backend)s\n"
+      "content": "[INCLUDES]\n\nbefore = paths-arch.conf\n\n[DEFAULT]\n\n# Never act on the machine itself or on a tunnel peer: the mesh's private range is\n# ${machine:mesh-range}, named here rather than written as a value the module cannot\n# know (novox/hq ADR 0112). Without this, fail2ban could ban the mesh's own nodes.\nignoreip = 127.0.0.1/8 ::1 ${machine:mesh-range}\n\nbantime  = 10m\nfindtime = 10m\nmaxretry = 5\n\n# Ban through iptables, not through a firewall front-end the machine may not have. ufw is\n# installed on two of this mesh's machines and absent on the other two, and fail2ban finds out\n# only at ban time: the service reports healthy, the jail counts the attempt, the ban command\n# exits 127, and nothing is blocked. Proven on 2026-09-28 -- 'ufw: command not found' on a\n# machine the mesh reported as protected.\n#\n# The action below is this module's own, already used by the recidive jail on every machine\n# here, and it bans in DOCKER-USER as well as INPUT, so a container's published port is\n# covered too.\nbanaction = iptables-allports-dualchain\nbanaction_allports = iptables-allports-dualchain\n\n[sshd]\nenabled = true\nport    = ssh\nlogpath = %(sshd_log)s\nbackend = %(sshd_backend)s\n"
    },
    {
      "id": "jail-sshd",
      "type": "file",
      "path": "/etc/fail2ban/jail.d/sshd.conf",
      "mode": "0644",
-      "content": "[sshd]\nenabled = true\nport    = ssh\nlogpath = %(sshd_log)s\nbackend = %(sshd_backend)s\nmaxretry = 3\nfindtime = 1d\nbantime  = 1d\n"
+      "content": "[sshd]\nenabled = true\nport    = ssh\nlogpath = %(sshd_log)s\nbackend = %(sshd_backend)s\nmaxretry = 5\n"
    },
    {
      "id": "log",
@@ -89,7 +55,7 @@
      "type": "file",
      "path": "/etc/fail2ban/jail.d/recidive.conf",
      "mode": "0644",
-      "content": "[recidive]\nenabled = true\nlogpath  = /var/log/fail2ban.log\n# Ban in both INPUT (host services like SSH) and DOCKER-USER (container services)\nbanaction = iptables-allports-dualchain\n# Banned twice in two weeks, by any jail, is banned for four (novox/hq ADR 0179).\nbantime  = 4w\nfindtime = 2w\nmaxretry = 2\n"
+      "content": "[recidive]\nenabled = true\nlogpath  = /var/log/fail2ban.log\n# Ban in both INPUT (host services like SSH) and DOCKER-USER (container services)\nbanaction = iptables-allports-dualchain\nbantime  = 1w\nfindtime = 1d\n"
    },
    {
      "id": "action-dualchain",
@@ -115,44 +81,8 @@
        "jail-local",
        "jail-sshd",
        "jail-recidive",
-        "action-dualchain",
-        "composed-jails"
+        "action-dualchain"
      ]
-    },
-    {
-      "id": "runtime",
-      "type": "container",
-      "name": "mesh-fail2ban",
-      "artifact": "runtime",
-      "network": "host",
-      "volumes": [
-        "${dir:mesh-state}/broker:/run/secrets/broker:ro",
-        "/var/run/fail2ban:/var/run/fail2ban"
-      ],
-      "env": {
-        "MESH_BROKER_FILE": "/run/secrets/broker"
-      }
    }
-  ],
-  "build": {
-    "on": [
-      {
-        "arg": "BUILD_BASE",
-        "module": "mesh-tools",
-        "artifact": "build"
-      },
-      {
-        "arg": "RUNTIME_BASE",
-        "module": "mesh-tools",
-        "artifact": "runtime"
-      }
-    ],
-    "artifacts": [
-      {
-        "name": "runtime",
-        "kind": "image",
-        "from": "Dockerfile"
-      }
-    ]
-  }
+  ]
 }
@@ -1,18 +1,14 @@
 {
  "name": "@novox/module-fail2ban",
  "version": "0.1.0",
-  "description": "fail2ban \u2014 intrusion prevention: the mesh composes the jails and keeps the daemon running; this module holds the node-intrusion-prevention seat and serves its verbs status, banned, ban and unban (novox/hq to-be 31, ADR 0179).",
+  "description": "fail2ban — intrusion prevention: the mesh declares the jails and keeps the daemon running; its ban/unban/status tools live here.",
  "type": "module",
  "private": true,
  "dependencies": {
-    "@novox/mesh-sdk": "^0.1.1"
+    "@novox/mesh-sdk": "^0.1.0"
  },
  "devDependencies": {
    "@types/node": "^22.0.0",
    "typescript": "^5.6.0"
-  },
-  "scripts": {
-    "build": "tsc client.ts tools/index.ts --module NodeNext --moduleResolution NodeNext --target ES2022 --outDir dist",
-    "test": "node --test --experimental-strip-types 'test/*.test.ts'"
  }
 }
@@ -1,106 +0,0 @@
-// The intrusion prevention's verbs over a fake daemon, with the shapes fail2ban-client 1.1.0 printed
-// on the control node on 2026-10-02 (novox/hq ADR 0179).
-import { test } from "node:test";
-import assert from "node:assert/strict";
-import { Fail2banClient, parseBans, parseJailStatus, type Runner } from "../client.ts";
-
-const STATUS = "Status\n|- Number of jail:\t2\n`- Jail list:\trecidive, sshd\n";
-const RECIDIVE =
-  "Status for the jail: recidive\n|- Filter\n|  |- Currently failed:\t36\n|  |- Total failed:\t149\n" +
-  "|  `- File list:\t/var/log/fail2ban.log\n`- Actions\n   |- Currently banned:\t9\n   |- Total banned:\t13\n" +
-  "   `- Banned IP list:\t195.178.110.30 45.148.10.240 92.118.39.71\n";
-const SSHD =
-  "Status for the jail: sshd\n|- Filter\n|  |- Currently failed:\t5\n|  |- Total failed:\t11776\n" +
-  "|  `- Journal matches:\t_SYSTEMD_UNIT=sshd.service + _COMM=sshd\n`- Actions\n   |- Currently banned:\t0\n" +
-  "   |- Total banned:\t150\n   `- Banned IP list:\t\n";
-const WITH_TIME =
-  "195.178.110.30 \t2026-09-26 23:18:47 + 604800 = 2026-10-03 23:18:47\n" +
-  "92.118.39.71 \t2026-09-28 10:33:49 + 604800 = 2026-10-05 10:33:49\n";
-
-function fake(answers: Record<string, string>, calls: string[][] = []): Runner {
-  return async (cmd, args) => {
-    calls.push([cmd, ...args]);
-    const key = args.join(" ");
-    if (key in answers) return answers[key];
-    throw new Error(`unexpected ${cmd} ${key}`);
-  };
-}
-
-test("a jail's status is read into numbers, what it watches and who it holds", () => {
-  const s = parseJailStatus("recidive", RECIDIVE);
-  assert.deepEqual(s, {
-    jail: "recidive",
-    watching: ["/var/log/fail2ban.log"],
-    failing: { now: 36, total: 149 },
-    banned: { now: 9, total: 13, addresses: ["195.178.110.30", "45.148.10.240", "92.118.39.71"] },
-  });
-  const j = parseJailStatus("sshd", SSHD);
-  assert.deepEqual(j.watching, ["_SYSTEMD_UNIT=sshd.service + _COMM=sshd"]);
-  assert.deepEqual(j.banned, { now: 0, total: 150, addresses: [] });
-});
-
-test("status covers every jail the daemon lists, or the one named", async () => {
-  const calls: string[][] = [];
-  const f = new Fail2banClient(fake({ status: STATUS, "status recidive": RECIDIVE, "status sshd": SSHD }, calls));
-  const all = await f.status();
-  assert.deepEqual(all.jails.map((j) => j.jail), ["recidive", "sshd"]);
-  const one = await f.status("sshd");
-  assert.equal(one.jails.length, 1);
-  assert.deepEqual(calls[calls.length - 1], ["fail2ban-client", "status", "sshd"]);
-});
-
-test("bans are read with when they were placed and when they end, a permanent one as never", () => {
-  const bans = parseBans("recidive", WITH_TIME + "203.0.113.9 \t2026-10-01 00:00:00 + -1 = never\n");
-  assert.equal(bans.length, 3);
-  assert.deepEqual(bans[0], { ip: "195.178.110.30", jail: "recidive", since: "2026-09-26 23:18:47", until: "2026-10-03 23:18:47" });
-  assert.equal(bans[2].until, "never");
-  assert.deepEqual(parseBans("sshd", "\n"), []);
-});
-
-test("banned gathers every jail's bans, soonest to end first", async () => {
-  const f = new Fail2banClient(fake({
-    status: STATUS,
-    "get recidive banip --with-time": WITH_TIME,
-    "get sshd banip --with-time": "198.51.100.7 \t2026-10-02 15:06:58 + 600 = 2026-10-02 15:16:58\n",
-  }));
-  const { banned } = await f.banned();
-  assert.deepEqual(banned.map((b) => `${b.ip}@${b.jail}`), ["198.51.100.7@sshd", "195.178.110.30@recidive", "92.118.39.71@recidive"]);
-});
-
-test("ban asks the daemon by jail and answers with the ban as held; a non-address is refused before anything runs", async () => {
-  const calls: string[][] = [];
-  const f = new Fail2banClient(fake({
-    "set recidive banip 198.51.100.7": "1\n",
-    "get recidive banip --with-time": WITH_TIME + "198.51.100.7 \t2026-10-02 17:00:00 + 604800 = 2026-10-09 17:00:00\n",
-  }, calls));
-  const r = await f.ban("198.51.100.7", "recidive");
-  assert.equal(r.added, 1);
-  assert.equal(r.banned?.until, "2026-10-09 17:00:00");
-  assert.deepEqual(calls[0], ["fail2ban-client", "set", "recidive", "banip", "198.51.100.7"]);
-  await assert.rejects(() => f.ban("not-an-ip", "recidive"), /is not an address/);
-  await assert.rejects(() => f.ban("198.51.100.7", "a jail; rm"), /is not a jail's name/);
-  assert.equal(calls.length, 2);
-});
-
-test("unban releases from one jail or from every jail", async () => {
-  const calls: string[][] = [];
-  const f = new Fail2banClient(fake({ "set sshd unbanip 198.51.100.7": "1\n", "unban 198.51.100.7": "2\n" }, calls));
-  assert.deepEqual(await f.unban("198.51.100.7", "sshd"), { released: 1, ip: "198.51.100.7", jail: "sshd" });
-  assert.deepEqual(await f.unban("198.51.100.7"), { released: 2, ip: "198.51.100.7", jail: "every jail" });
-  assert.deepEqual(calls[1], ["fail2ban-client", "unban", "198.51.100.7"]);
-});
-
-test("a jail's settings are read from the daemon's listings", async () => {
-  const f = new Fail2banClient(fake({
-    "get sshd bantime": "86400\n", "get sshd findtime": "86400\n", "get sshd maxretry": "3\n",
-    "get sshd ignoreip": "These IP addresses/networks are ignored:\n|- 127.0.0.0/8\n|- 10.10.0.0/24\n`- ::1\n",
-    "get sshd actions": "The jail sshd has the following actions:\niptables-allports-dualchain\n",
-    "get sshd logpath": "No file is currently monitored\n",
-    "get sshd journalmatch": "Current match filter:\n_SYSTEMD_UNIT=sshd.service + _COMM=sshd\n",
-  }));
-  assert.deepEqual(await f.settings("sshd"), {
-    jail: "sshd", bantime: "86400", findtime: "86400", maxretry: 3,
-    ignoreip: ["127.0.0.0/8", "10.10.0.0/24", "::1"], actions: ["iptables-allports-dualchain"],
-    logpath: [], journalmatch: "_SYSTEMD_UNIT=sshd.service + _COMM=sshd",
-  });
-});
@@ -1,62 +1,55 @@
-// The intrusion prevention's tools: the node-intrusion-prevention seat's four verbs — who is banned,
-// the jails' state, ban one, let one go — and the module's own reading of a jail's settings
-// (novox/hq to-be 31, ADR 0179). The jails themselves are composed by the mesh from the modules a
-// machine runs and written as declared resources; these touch only what the running daemon holds.
+// fail2ban's tools — reading and steering the live ban state. The jails themselves are declared
+// resources (module.json); these three touch what the running daemon holds: what is banned now,
+// and the manual ban/unban an operator reaches for. The daemon's state is fail2ban's own, so this
+// is the only way to see or change it — the mesh reconciles the config, not the bans.

 import { registerModuleTools, type ToolDefinition } from "@novox/mesh-sdk/tools";
 import { Fail2banClient } from "../client.js";

-export function getSeatVerbs(fail2ban: Fail2banClient): ToolDefinition[] {
-  return [
-    {
-      name: "status",
-      description:
-        "Every jail on this machine with what it watches, how many addresses it is counting failures against and holding now, and the totals since it started; one jail's detail when named.",
-      input: { jail: { type: "string", description: "one jail (optional)" } },
-      run: async (args) => fail2ban.status(args.jail ? String(args.jail) : undefined),
-    },
-    {
-      name: "banned",
-      description: "Every address banned on this machine right now, with the jail that holds it, when it was banned and when the ban ends.",
-      input: { jail: { type: "string", description: "one jail (optional)" } },
-      run: async (args) => fail2ban.banned(args.jail ? String(args.jail) : undefined),
-    },
-    {
-      name: "ban",
-      description:
-        "Ban one address in one jail now, for the jail's ban time — an operator's act on the live ban list, which the mesh never writes itself.",
-      input: {
-        ip: { type: "string", description: "the address" },
-        jail: { type: "string", description: "the jail to hold it (recidive for the long ban)" },
-      },
-      run: async (args) => fail2ban.ban(String(args.ip ?? ""), String(args.jail ?? "")),
-    },
-    {
-      name: "unban",
-      description: "Let one address go, from one jail or from every jail when none is named.",
-      input: {
-        ip: { type: "string", description: "the address" },
-        jail: { type: "string", description: "one jail (optional)" },
-      },
-      run: async (args) => fail2ban.unban(String(args.ip ?? ""), args.jail ? String(args.jail) : undefined),
-    },
-  ];
-}
-
 export function getFail2banTools(fail2ban: Fail2banClient): ToolDefinition[] {
  return [
    {
-      name: "fail2ban_settings",
+      name: "fail2ban_status",
      description:
-        "One jail's effective settings on this machine: ban time, window, tries, the addresses it never bans, its actions and what it reads.",
-      input: { jail: { type: "string", description: "the jail" } },
-      run: async (args) => fail2ban.settings(String(args.jail ?? "")),
+        "fail2ban status on this node — the jails and their live bans. Omit `jail` for every jail, or name one for its detail.",
+      input: {
+        type: "object",
+        properties: {
+          jail: {
+            type: "string",
+            description: "A specific jail (e.g. sshd, recidive); omit for the overview of all jails.",
+          },
+        },
+      },
+      run: async (args) => ({ status: await fail2ban.status(args.jail as string | undefined) }),
+    },
+    {
+      name: "fail2ban_ban",
+      description: "Manually ban an IP address in a jail — a live change to the running daemon, not a mesh-managed file.",
+      input: {
+        type: "object",
+        properties: {
+          jail: { type: "string", description: "Jail name (e.g. sshd, recidive)." },
+          ip: { type: "string", description: "IP address to ban." },
+        },
+        required: ["jail", "ip"],
+      },
+      run: async (args) => ({ result: await fail2ban.ban(args.jail as string, args.ip as string) }),
+    },
+    {
+      name: "fail2ban_unban",
+      description: "Unban an IP address from one jail, or from every jail when `jail` is omitted.",
+      input: {
+        type: "object",
+        properties: {
+          ip: { type: "string", description: "IP address to unban." },
+          jail: { type: "string", description: "A specific jail; omit to unban from all jails." },
+        },
+        required: ["ip"],
+      },
+      run: async (args) => ({ result: await fail2ban.unban(args.ip as string, args.jail as string | undefined) }),
    },
  ];
 }

-const fail2ban = Fail2banClient.fromEnv();
-// The seat's verbs under the seat's name: the runtime serves them on the seat's subjects where this
-// module holds it (ADR 0159, 0160). The module's own under its own.
-registerModuleTools("node-intrusion-prevention", () => getSeatVerbs(fail2ban));
-registerModuleTools("fail2ban", () => getFail2banTools(fail2ban));
+registerModuleTools("fail2ban", () => getFail2banTools(Fail2banClient.fromEnv()));
@@ -145,8 +145,7 @@
      "volumes": [
        "${dir:data}:/data"
      ],
-      "secrets-in-environment": "gitea honours GITEA__database__PASSWD__FILE and GITEA__security__INTERNAL_TOKEN__FILE; convertible, awaiting a bed that proves it",
-      "logging": "journald"
+      "secrets-in-environment": "gitea honours GITEA__database__PASSWD__FILE and GITEA__security__INTERNAL_TOKEN__FILE; convertible, awaiting a bed that proves it"
    },
    {
      "id": "admin-bootstrap",
@@ -238,12 +237,5 @@
        "from": "Dockerfile"
      }
    ]
-  },
-  "jails": [
-    {
-      "name": "gitea",
-      "failregex": "^.*Failed authentication attempt for .* from <HOST>(?::\\d+)?\\s*$\n            ^.*Invalid user .* from <HOST> port \\d+\\s*$\n            ^.*User \\S+ from <HOST> not allowed because .*$",
-      "jail": "backend = systemd\njournalmatch = CONTAINER_NAME=gitea\nport = http,https,222\nmaxretry = 3\nfindtime = 1d\nbantime = 1d"
-    }
-  ]
+  }
 }
@@ -1,31 +0,0 @@
-# lab's runtime: the tool runtime, carrying this module's code, and the toolchain the lab's suite
-# builds the mesh with (novox/hq ADR 0172). It reaches the machine's virtualisation and container
-# runtime through their sockets, so what it raises is what a hand run on this machine raises.
-#
-# Every download is pinned by its checksum: an image that builds the mesh is the last place to take
-# whatever an upstream serves today.
-ARG BUILD_BASE
-ARG RUNTIME_BASE
-
-FROM ${BUILD_BASE} AS build
-WORKDIR /app/modules/lab
-COPY . .
-RUN node /app/node_modules/typescript/bin/tsc tools/index.ts tools/runs.ts --rootDir . \
-      --module NodeNext --moduleResolution NodeNext --target ES2022 --outDir dist
-
-FROM ${RUNTIME_BASE}
-RUN apt-get update \
- && apt-get install -y --no-install-recommends git make ca-certificates curl python3 file iproute2 sudo \
- && rm -rf /var/lib/apt/lists/*
-RUN curl -fsSL -o /tmp/go.tgz https://go.dev/dl/go1.26.8.linux-amd64.tar.gz \
- && echo "d0f743b33e8d8945e6b1f432edd15785c70507121d6e2a723b21285eddf8b57b  /tmp/go.tgz" | sha256sum -c - \
- && tar -C /usr/local -xzf /tmp/go.tgz && rm /tmp/go.tgz
-RUN curl -fsSL -o /usr/local/bin/incus https://github.com/lxc/incus/releases/download/v7.5.1/bin.linux.incus.x86_64 \
- && echo "7bd6223b369f4d693fcde695bd8549a73b5b3d403735329212483702aa22c179  /usr/local/bin/incus" | sha256sum -c - \
- && chmod 0755 /usr/local/bin/incus
-RUN curl -fsSL -o /tmp/docker.tgz https://download.docker.com/linux/static/stable/x86_64/docker-28.5.2.tgz \
- && echo "ea90cfd12e1eeb12aa1c971741adb8bd4ed88e2a574eaac13f5029a1dbc6300d  /tmp/docker.tgz" | sha256sum -c - \
- && tar -C /tmp -xzf /tmp/docker.tgz docker/docker && mv /tmp/docker/docker /usr/local/bin/docker && rm -rf /tmp/docker /tmp/docker.tgz
-ENV PATH=/usr/local/go/bin:$PATH
-COPY --from=build /app/modules/lab/dist /app/modules/lab/dist
-ENV MESH_TOOL_MODULES=/app/modules/lab/dist/tools/index.js
@@ -1,82 +0,0 @@
-{
-  "module": "lab",
-  "version": "1",
-  "capabilities": [
-    "container-runtime",
-    "virtualisation"
-  ],
-  "own-secrets": {
-    "broker": "${dir:mesh-state}/broker"
-  },
-  "resources": [
-    {
-      "id": "mesh-state",
-      "type": "directory",
-      "mode": "0700",
-      "place": "mesh"
-    },
-    {
-      "id": "state",
-      "type": "directory",
-      "mode": "0700",
-      "place": "."
-    },
-    {
-      "id": "work",
-      "type": "directory",
-      "path": "/var/lib/mesh-lab-runs",
-      "mode": "0700"
-    },
-    {
-      "id": "runtime-env",
-      "type": "file",
-      "path": "${dir:state}/lab.env",
-      "mode": "0600",
-      "content": "MESH_LAB_FORGE=${setting:forge}\n"
-    },
-    {
-      "id": "runtime",
-      "type": "container",
-      "name": "mesh-lab",
-      "network": "host",
-      "env-file": [
-        "${dir:state}/lab.env"
-      ],
-      "volumes": [
-        "${dir:mesh-state}/broker:/run/secrets/broker:ro",
-        "${dir:work}:${dir:work}",
-        "/var/run/docker.sock:/var/run/docker.sock",
-        "/var/lib/incus/unix.socket:/var/lib/incus/unix.socket"
-      ],
-      "env": {
-        "MESH_BROKER_FILE": "/run/secrets/broker",
-        "MESH_LAB_WORK": "${dir:work}"
-      },
-      "restart-on": [
-        "runtime-env"
-      ],
-      "artifact": "runtime"
-    }
-  ],
-  "build": {
-    "on": [
-      {
-        "arg": "BUILD_BASE",
-        "module": "mesh-tools",
-        "artifact": "build"
-      },
-      {
-        "arg": "RUNTIME_BASE",
-        "module": "mesh-tools",
-        "artifact": "runtime"
-      }
-    ],
-    "artifacts": [
-      {
-        "name": "runtime",
-        "kind": "image",
-        "from": "Dockerfile"
-      }
-    ]
-  }
-}
@@ -1,9 +0,0 @@
-{
-  "name": "@novox/module-lab",
-  "version": "0.1.0",
-  "description": "lab — the lab, as a module: runs beds against the forge's branches when the mesh asks (novox/hq ADR 0172).",
-  "type": "module",
-  "private": true,
-  "dependencies": { "@novox/mesh-sdk": "^0.1.0" },
-  "devDependencies": { "@types/node": "^22.0.0", "typescript": "^5.6.0" }
-}
@@ -1,86 +0,0 @@
-// lab's tools — the lab, as the mesh asks for it (novox/hq ADR 0172). They run on the machine the
-// lab is assigned to, and only there: a bed raises virtual machines on that machine's virtualisation.
-
-import { spawnSync } from "node:child_process";
-import { registerModuleTools, type ToolDefinition } from "@novox/mesh-sdk/tools";
-import { listRuns, readStatus, REPOSITORIES, running, start, stop, tail } from "./runs.js";
-
-export function getLabTools(env: NodeJS.ProcessEnv): ToolDefinition[] {
-  const work = env.MESH_LAB_WORK ?? "/var/lib/mesh-lab-runs";
-  const forge = (env.MESH_LAB_FORGE ?? "").replace(/\/+$/, "");
-  return [
-    {
-      name: "lab_check",
-      description: "Whether this machine can run the lab's beds: the lab's own check, against the forge's main branch.",
-      input: {},
-      run: async () => {
-        if (!forge) return { ok: false, output: "the lab's forge is not set: settings for lab, {\"forge\": \"<url>\"}" };
-        const dir = `${work}/check`;
-        spawnSync("rm", ["-rf", dir]);
-        const clone = spawnSync("git", ["clone", "--quiet", "--depth", "1", `${forge}/novox/mesh-lab.git`, dir], { encoding: "utf8" });
-        if (clone.status !== 0) return { ok: false, output: clone.stderr };
-        spawnSync("npm", ["ci", "--no-audit", "--no-fund", "--loglevel=error"], { cwd: dir, encoding: "utf8" });
-        const check = spawnSync("node", ["--experimental-strip-types", "src/cli.ts", "check"], { cwd: dir, encoding: "utf8" });
-        return { ok: check.status === 0, output: `${check.stdout}${check.stderr}`.trim() };
-      },
-    },
-    {
-      name: "lab_run",
-      description:
-        "Run the lab's beds against branches on the forge: fresh checkouts of every repository the lab builds, " +
-        "side by side, then the suite on the named test files. Answers at once with the run's id; lab_status " +
-        "and lab_log follow it. One run at a time.",
-      input: {
-        tests: { type: "string", description: "the bed test files, comma-separated, relative to mesh-lab (e.g. test/integration/mesh.test.ts)" },
-        refs: {
-          type: "string",
-          description: `a JSON object of repository to branch, for any of ${REPOSITORIES.join(", ")}; the rest run main`,
-        },
-      },
-      run: async (args) => {
-        if (!forge) return { started: false, reason: "the lab's forge is not set: settings for lab, {\"forge\": \"<url>\"}" };
-        const tests = String(args.tests ?? "").split(",").map((s) => s.trim()).filter(Boolean);
-        if (tests.length === 0) return { started: false, reason: "name at least one bed test file" };
-        let refs: Record<string, string> = {};
-        if (args.refs) {
-          try {
-            refs = JSON.parse(String(args.refs)) as Record<string, string>;
-          } catch {
-            return { started: false, reason: "refs is not a JSON object of repository to branch" };
-          }
-        }
-        const stranger = Object.keys(refs).filter((r) => !REPOSITORIES.includes(r));
-        if (stranger.length > 0) return { started: false, reason: `the lab does not build ${stranger.join(", ")}` };
-        const busy = running(work);
-        if (busy) return { started: false, reason: `${busy.id} is still ${busy.state}; one run at a time`, running: busy };
-        return { started: true, run: start(work, forge, tests, refs) };
-      },
-    },
-    {
-      name: "lab_status",
-      description: "A run's state, the commits it tested and how it ended — or every run, newest first, when no id is given.",
-      input: { id: { type: "string", description: "the run's id (optional)" } },
-      run: async (args) => {
-        if (args.id) return readStatus(work, String(args.id)) ?? { found: false, id: String(args.id) };
-        return { runs: listRuns(work).slice(0, 10) };
-      },
-    },
-    {
-      name: "lab_log",
-      description: "The last lines of a run's log.",
-      input: {
-        id: { type: "string", description: "the run's id" },
-        lines: { type: "number", description: "how many lines from the end (default 200)" },
-      },
-      run: async (args) => ({ id: String(args.id), log: tail(work, String(args.id), Number(args.lines ?? 200)) }),
-    },
-    {
-      name: "lab_stop",
-      description: "Stop a run and everything it started.",
-      input: { id: { type: "string", description: "the run's id" } },
-      run: async (args) => stop(work, String(args.id)) ?? { found: false, id: String(args.id) },
-    },
-  ];
-}
-
-registerModuleTools("lab", (env) => getLabTools(env));
@@ -1,175 +0,0 @@
-// A lab run: fresh checkouts of the named branches, side by side, then the lab's suite on the named
-// beds (novox/hq ADR 0172).
-//
-// **A run is a detached script with its own process group**, so it outlives the tool call that started
-// it and `stop` ends everything it started. It writes what it is doing to a status file beside its log,
-// and that file is the whole of what the tools read back: a runtime that restarts mid-run still answers
-// for it, and says it was lost rather than pretending it is still going.
-
-import { spawn } from "node:child_process";
-import { existsSync, mkdirSync, readFileSync, readdirSync, writeFileSync } from "node:fs";
-import { join } from "node:path";
-
-/** The repositories a lab run checks out, side by side, as the lab expects its siblings. */
-export const REPOSITORIES = ["mesh-lab", "mesh-controller", "mesh-host", "mesh-catalog", "mesh-tools", "mesh-sdk"];
-
-export interface RunStatus {
-  id: string;
-  state: "checking-out" | "building" | "running" | "passed" | "failed" | "stopped" | "lost";
-  started: string;
-  ended?: string;
-  tests: string[];
-  refs: Record<string, string>;
-  commits?: Record<string, string>;
-  exit?: number;
-  pid?: number;
-}
-
-export function runDir(work: string, id: string): string {
-  return join(work, id);
-}
-
-function statusPath(work: string, id: string): string {
-  return join(runDir(work, id), "status.json");
-}
-
-export function readStatus(work: string, id: string): RunStatus | undefined {
-  try {
-    const s = JSON.parse(readFileSync(statusPath(work, id), "utf8")) as RunStatus;
-    // A run whose process is gone while its status still says it is going was lost — the runtime or
-    // the machine restarted under it. Said, rather than left reading as running for ever.
-    if (!["passed", "failed", "stopped", "lost"].includes(s.state) && s.pid && !alive(s.pid)) {
-      s.state = "lost";
-    }
-    return s;
-  } catch {
-    return undefined;
-  }
-}
-
-function alive(pid: number): boolean {
-  try {
-    process.kill(pid, 0);
-    return true;
-  } catch {
-    return false;
-  }
-}
-
-export function listRuns(work: string): RunStatus[] {
-  if (!existsSync(work)) return [];
-  return readdirSync(work)
-    .filter((d) => d.startsWith("run-"))
-    .map((id) => readStatus(work, id))
-    .filter((s): s is RunStatus => !!s)
-    .sort((a, b) => b.started.localeCompare(a.started));
-}
-
-/** The run still going, if any: one at a time, because two would contend for the same machine. */
-export function running(work: string): RunStatus | undefined {
-  return listRuns(work).find((s) => !["passed", "failed", "stopped", "lost"].includes(s.state));
-}
-
-const shellQuote = (s: string) => `'${s.replace(/'/g, `'\\''`)}'`;
-
-/**
- * The script one run executes. Every step writes its state first, so a run that dies says where.
- *
- * The environment is the one the lab's README describes for a run against sibling checkouts, pointed
- * at this run's own tree, so what is built and claimed is exactly what was checked out.
- */
-export function script(work: string, id: string, forge: string, tests: string[], refs: Record<string, string>): string {
-  const dir = runDir(work, id);
-  const setState = (state: string) =>
-    `node -e ${shellQuote(
-      `const f=${JSON.stringify(join(dir, "status.json"))};const s=JSON.parse(require("fs").readFileSync(f,"utf8"));s.state=${JSON.stringify(state)};require("fs").writeFileSync(f,JSON.stringify(s,null,2))`,
-    )}`;
-  const clones = REPOSITORIES.map((repo) => {
-    const ref = refs[repo] ?? "main";
-    return [
-      `git clone --quiet --depth 50 --branch ${shellQuote(ref)} ${shellQuote(`${forge}/novox/${repo}.git`)} ${shellQuote(join(dir, repo))}`,
-      `echo "${repo} $(git -C ${shellQuote(join(dir, repo))} rev-parse HEAD)" >> ${shellQuote(join(dir, "commits.txt"))}`,
-    ].join("\n");
-  }).join("\n");
-  const bin = join(dir, "bin");
-  return `set -euo pipefail
-cd ${shellQuote(dir)}
-${setState("checking-out")}
-${clones}
-node -e ${shellQuote(
-    `const fs=require("fs");const f=${JSON.stringify(join(dir, "status.json"))};const s=JSON.parse(fs.readFileSync(f,"utf8"));s.commits=Object.fromEntries(fs.readFileSync(${JSON.stringify(join(dir, "commits.txt"))},"utf8").trim().split("\\n").map(l=>l.split(" ")));fs.writeFileSync(f,JSON.stringify(s,null,2))`,
-  )}
-${setState("building")}
-# The @novox scope resolves from the mesh's own package registry on the forge, as the build machine
-# resolves it; nothing else is asked of it.
-printf '%s\n' ${shellQuote(`@novox:registry=${forge}/api/packages/novox/npm/`)} > ${shellQuote(join(dir, ".npmrc"))}
-export NPM_CONFIG_USERCONFIG=${shellQuote(join(dir, ".npmrc"))}
-for repo in mesh-sdk mesh-tools mesh-lab; do (cd ${shellQuote(dir)}/$repo && npm ci --no-audit --no-fund --loglevel=error); done
-(cd ${shellQuote(dir)}/mesh-sdk && npm run build --if-present)
-(cd ${shellQuote(dir)}/mesh-tools && npm run build --if-present)
-mkdir -p ${shellQuote(bin)}
-for p in postgres-provisioner objectstore-provisioner route-proxy; do
-  (cd ${shellQuote(dir)}/mesh-controller && CGO_ENABLED=0 go build -o ${shellQuote(bin)}/$p ./examples/$p)
-done
-export MESH_LAB_HOST_BINARY=${shellQuote(join(dir, "mesh-host", "mesh-host"))}
-export MESH_LAB_BUNDLE=${shellQuote(join(dir, "mesh-host", "examples", "foundation-first-node-nats.lock"))}
-export MESH_LAB_MODULES=${shellQuote(join(dir, "mesh-controller", "examples", "modules"))}
-export MESH_LAB_BUILDER=${shellQuote(join(dir, "mesh-controller", "build", "mesh-builder"))}
-export MESH_LAB_BOOTSTRAP_BINARY=${shellQuote(join(dir, "mesh-host", "mesh-bootstrap"))}
-export MESH_LAB_CATALOG=${shellQuote(join(dir, "mesh-catalog", "modules"))}
-export MESH_LAB_PROVISIONER=${shellQuote(join(bin, "postgres-provisioner"))}
-export MESH_LAB_OBJECTSTORE_PROVISIONER=${shellQuote(join(bin, "objectstore-provisioner"))}
-export MESH_LAB_ROUTE_PROXY=${shellQuote(join(bin, "route-proxy"))}
-${setState("running")}
-cd ${shellQuote(join(dir, "mesh-lab"))}
-node --experimental-strip-types src/cli.ts suite ${tests.map(shellQuote).join(" ")}
-`;
-}
-
-/** start begins a run and returns at once with its status. */
-export function start(work: string, forge: string, tests: string[], refs: Record<string, string>): RunStatus {
-  const id = `run-${new Date().toISOString().replace(/[:.]/g, "-")}`;
-  const dir = runDir(work, id);
-  mkdirSync(dir, { recursive: true });
-  const status: RunStatus = { id, state: "checking-out", started: new Date().toISOString(), tests, refs };
-  writeFileSync(statusPath(work, id), JSON.stringify(status, null, 2));
-  writeFileSync(join(dir, "run.sh"), script(work, id, forge, tests, refs), { mode: 0o700 });
-
-  // The wrapper records how the run ended, then removes the checkouts and keeps the log and status: a
-  // run's tree is its own, and the next run starts from fresh ones (novox/hq ADR 0172).
-  const wrapper = `bash ${shellQuote(join(dir, "run.sh"))} > ${shellQuote(join(dir, "run.log"))} 2>&1; code=$?
-node -e ${shellQuote(
-    `const f=${JSON.stringify(statusPath(work, id))};const s=JSON.parse(require("fs").readFileSync(f,"utf8"));if(s.state!=="stopped"){s.state=process.argv[1]==="0"?"passed":"failed"};s.exit=Number(process.argv[1]);s.ended=new Date().toISOString();require("fs").writeFileSync(f,JSON.stringify(s,null,2))`,
-  )} "$code"
-cd ${shellQuote(dir)} && rm -rf ${REPOSITORIES.map(shellQuote).join(" ")} bin`;
-  const child = spawn("bash", ["-c", wrapper], { detached: true, stdio: "ignore" });
-  child.unref();
-  status.pid = child.pid;
-  writeFileSync(statusPath(work, id), JSON.stringify(status, null, 2));
-  return status;
-}
-
-/** stop ends a run and everything it started, by its process group. */
-export function stop(work: string, id: string): RunStatus | undefined {
-  const s = readStatus(work, id);
-  if (!s || !s.pid) return s;
-  if (["passed", "failed", "stopped", "lost"].includes(s.state)) return s;
-  s.state = "stopped";
-  writeFileSync(statusPath(work, id), JSON.stringify(s, null, 2));
-  try {
-    process.kill(-s.pid, "SIGTERM");
-  } catch {
-    // Already gone between the read and the kill.
-  }
-  return s;
-}
-
-/** tail is the last lines of a run's log. */
-export function tail(work: string, id: string, lines: number): string {
-  try {
-    const all = readFileSync(join(runDir(work, id), "run.log"), "utf8").split("\n");
-    return all.slice(-Math.max(1, lines)).join("\n");
-  } catch {
-    return "";
-  }
-}
@@ -462,8 +462,7 @@
      ],
      "dns": [
        "192.168.203.254"
-      ],
-      "logging": "journald"
+      ]
    },
    {
      "id": "runtime-config",
@@ -562,12 +561,5 @@
  },
  "grants": {
    "smtp": "${dir:grants}"
-  },
-  "jails": [
-    {
-      "name": "mailu-front",
-      "failregex": "^.*(?:imap|pop3|submission|managesieve)-login: .*\\(auth failed, \\d+ attempts(?: in \\d+ secs)?\\):.*rip=<HOST>(?:,|$)",
-      "jail": "backend = systemd\njournalmatch = CONTAINER_NAME=mailu-front\nport = smtp,submission,submissions,imap,imaps,pop3,pop3s\nmaxretry = 3\nfindtime = 1d\nbantime = 1d"
-    }
-  ]
+  }
 }
@@ -1,23 +0,0 @@
-# nftables' runtime: the tool runtime, carrying the packet filter's tools and the binaries they speak.
-#
-# Built from this module's own directory and nothing else (novox/hq ADR 0069). Two bases, named in
-# module.json's `build.on`: the image this is compiled in and the image it runs in.
-ARG BUILD_BASE
-ARG RUNTIME_BASE
-
-FROM ${BUILD_BASE} AS build
-WORKDIR /app/modules/nftables
-COPY . .
-RUN node /app/node_modules/typescript/bin/tsc client.ts tools/index.ts \
-      --module NodeNext --moduleResolution NodeNext --target ES2022 --outDir dist
-
-FROM ${RUNTIME_BASE}
-# The filter's own tools: nft for the machine's ruleset and the mesh's table, iptables for the
-# legacy filter and the tables iptables-nft manages — a predecessor's rules live there (ADR 0168).
-# The container runs on the machine's network with NET_ADMIN (ADR 0170), so these act on the
-# machine's packet filter, not on a namespace of their own.
-RUN apt-get update \
-      && apt-get install -y --no-install-recommends nftables iptables \
-      && rm -rf /var/lib/apt/lists/*
-COPY --from=build /app/modules/nftables/dist /app/modules/nftables/dist
-ENV MESH_TOOL_MODULES=/app/modules/nftables/dist/tools/index.js
@@ -1,211 +1,22 @@
-// The packet filter's own code, in the module (novox/hq ADR 0039). The mesh computes this node's
-// rule set from every module's `listens` and writes it to the filter file (ADR 0045); the module
-// loads it through its own unit. This code reads the filter back as the machine enforces it, reloads
-// the mesh's own table, and removes one thing the mesh did not write when the operator names it
-// (ADR 0168, ADR 0170) — the seat's three verbs, over the machine's own tools.
+// The firewall's own code, in the module (novox/hq ADR 0039). The mesh computes this node's whole
+// rule set from every module's `listens` and writes it to /etc/nftables.conf (novox/hq ADR 0045);
+// the module loads it through its own mesh-filter unit, reloaded whenever the rules change, whose
+// stop deletes only the mesh's table and never flushes the whole ruleset (novox/hq ADR 0100). This
+// code exists only to read back what is actually enforced — the enforcement itself is declarative.

 import { execFile } from "node:child_process";
 import { promisify } from "node:util";

-const execFileP = promisify(execFile);
-
-/** A command runner, so the acts can be tested without a packet filter. */
-export type Runner = (cmd: string, args: string[]) => Promise<string>;
-
-export const execRunner: Runner = async (cmd, args) => {
-  const { stdout } = await execFileP(cmd, args, { maxBuffer: 16 * 1024 * 1024 });
-  return stdout;
-};
-
-/** The mesh's own tables, which `remove` never touches. */
-const MESH_TABLES = new Set(["inet mesh", "inet mesh_guard"]);
-/** The tables iptables-nft manages, spoken through iptables rather than nft. */
-const IPTABLES_TABLES = new Set(["filter", "nat", "raw", "mangle", "security"]);
-/** The chains the kernel has built in; flushing one is the owner's act, not an operator's removal. */
-const BUILT_IN = new Set(["INPUT", "FORWARD", "OUTPUT", "PREROUTING", "POSTROUTING"]);
-/** The chain the container runtime leaves for an administrator, which is emptied, never deleted. */
-const USER_CHAIN = "DOCKER-USER";
-
-export interface Removal {
-  where: string;
-  did: string[];
-}
+const run = promisify(execFile);

 export class FirewallClient {
-  private readonly run: Runner;
-  private readonly filterFile: string;
-
-  constructor(run: Runner = execRunner, filterFile: string = process.env.MESH_FILTER_FILE ?? "/etc/nftables.conf") {
-    this.run = run;
-    this.filterFile = filterFile;
+  static fromEnv(_env: NodeJS.ProcessEnv = process.env): FirewallClient {
+    return new FirewallClient();
  }

-  static fromEnv(env: NodeJS.ProcessEnv = process.env): FirewallClient {
-    return new FirewallClient(execRunner, env.MESH_FILTER_FILE ?? "/etc/nftables.conf");
-  }
-
-  /** The mesh's live table — exactly what the mesh's own filter is dropping and accepting. */
+  /** The mesh's live table — exactly what is dropping and accepting on this node right now. */
  async ruleset(): Promise<string> {
-    return this.run("nft", ["list", "table", "inet", "mesh"]);
-  }
-
-  /** The packet filter as the machine enforces it: nftables whole or narrowed, and the legacy filter's
-   *  listings where the tools exist. */
-  async rules(table?: string, chain?: string): Promise<{ nftables: string; legacy: Record<string, string> }> {
-    let nftables: string;
-    if (table && chain) {
-      const [family, name] = splitTable(table);
-      nftables = await this.run("nft", ["list", "chain", family, name, chain]);
-    } else if (table) {
-      const [family, name] = splitTable(table);
-      nftables = await this.run("nft", ["list", "table", family, name]);
-    } else {
-      nftables = await this.run("nft", ["list", "ruleset"]);
-    }
-    const legacy: Record<string, string> = {};
-    if (!table) {
-      for (const tool of ["iptables-legacy", "ip6tables-legacy"]) {
-        try {
-          const out = await this.run(tool, ["-S"]);
-          if (out.trim()) legacy[tool] = out;
-        } catch {
-          // the tool is not here, or the legacy filter is empty: nothing to list
-        }
-      }
-    }
-    return { nftables, legacy };
-  }
-
-  /** Load the mesh's own filter again from the file the mesh writes, and answer with the table. */
-  async reload(): Promise<{ loaded: string; table: string }> {
-    await this.run("nft", ["-f", this.filterFile]);
-    return { loaded: this.filterFile, table: await this.ruleset() };
-  }
-
-  /** Whether the found front end is in force, whose chains `remove` leaves alone. */
-  private async ufwActive(): Promise<boolean> {
-    try {
-      const out = await this.run("ufw", ["status"]);
-      return /^Status:\s*active/m.test(out);
-    } catch {
-      return false;
-    }
-  }
-
-  /** Remove one rule set the mesh did not write, named as the host reports it (ADR 0168). */
-  async remove(where: string): Promise<Removal> {
-    const did: string[] = [];
-    const legacy = /^chain (\S+) \((iptables-legacy|ip6tables-legacy|iptables|ip6tables)\)$/.exec(where.trim());
-    const nft = /^table (\S+) (\S+), chain (\S+)$/.exec(where.trim());
-    if (legacy) {
-      const [, chain, tool] = legacy;
-      await this.refuseOwned(chain, "ip", "filter");
-      await this.removeChainWith(tool, undefined, chain, did);
-      return { where, did };
-    }
-    if (nft) {
-      const [, family, name, chain] = nft;
-      const table = `${family} ${name}`;
-      if (MESH_TABLES.has(table)) throw new Error(`${where} is the mesh's own table; it is not removed, it is composed`);
-      await this.refuseOwned(chain, family, name);
-      if ((family === "ip" || family === "ip6") && IPTABLES_TABLES.has(name)) {
-        const tool = family === "ip6" ? "ip6tables" : "iptables";
-        await this.removeChainWith(tool, name, chain, did);
-        return { where, did };
-      }
-      // A table of the machine's own: a chain of it goes, and the table with it when nothing is left.
-      const listing = await this.run("nft", ["list", "table", family, name]);
-      const base = new RegExp(`chain ${escape(chain)} \\{[^}]*type \\S+ hook`).test(listing);
-      for (const from of chainsJumpingTo(listing, chain)) {
-        await this.deleteNftRules(family, name, from, chain, did);
-      }
-      if (base) {
-        await this.run("nft", ["flush", "chain", family, name, chain]);
-        did.push(`nft flush chain ${family} ${name} ${chain}`);
-      } else {
-        await this.run("nft", ["delete", "chain", family, name, chain]);
-        did.push(`nft delete chain ${family} ${name} ${chain}`);
-      }
-      return { where, did };
-    }
-    throw new Error(`${JSON.stringify(where)} is not a rule set as the host reports one: ` +
-      "`chain X (iptables-legacy)` or `table <family> <name>, chain X`");
-  }
-
-  private async refuseOwned(chain: string, family: string, table: string): Promise<void> {
-    if (chain !== USER_CHAIN && chain.startsWith("DOCKER")) {
-      throw new Error(`chain ${chain} is the container runtime's own; it is left`);
-    }
-    if (BUILT_IN.has(chain)) {
-      throw new Error(`chain ${chain} is built in; its policy is its owner's and it is not flushed`);
-    }
-    if (chain.startsWith("ufw") && (await this.ufwActive())) {
-      throw new Error(`chain ${chain} belongs to the found firewall, which is in force; converge retires it`);
-    }
-    void family; void table;
-  }
-
-  /** Through an iptables tool: the user chain is emptied back to its one return; another chain loses
-   *  the jumps into it, is flushed and deleted. */
-  private async removeChainWith(tool: string, table: string | undefined, chain: string, did: string[]): Promise<void> {
-    const t = table && table !== "filter" ? ["-t", table] : [];
-    if (chain === USER_CHAIN) {
-      await this.run(tool, [...t, "-F", chain]);
-      await this.run(tool, [...t, "-A", chain, "-j", "RETURN"]);
-      did.push(`${tool} ${[...t, "-F", chain].join(" ")}`, `${tool} ${[...t, "-A", chain, "-j", "RETURN"].join(" ")}`);
-      return;
-    }
-    const listing = await this.run(tool, [...t, "-S"]);
-    for (const line of listing.split("\n")) {
-      const fields = line.trim().split(/\s+/);
-      if (fields[0] !== "-A") continue;
-      const j = fields.indexOf("-j");
-      const g = fields.indexOf("-g");
-      const target = j >= 0 ? fields[j + 1] : g >= 0 ? fields[g + 1] : "";
-      if (target !== chain) continue;
-      const args = [...t, "-D", ...fields.slice(1)];
-      await this.run(tool, args);
-      did.push(`${tool} ${args.join(" ")}`);
-    }
-    await this.run(tool, [...t, "-F", chain]);
-    await this.run(tool, [...t, "-X", chain]);
-    did.push(`${tool} ${[...t, "-F", chain].join(" ")}`, `${tool} ${[...t, "-X", chain].join(" ")}`);
-  }
-
-  private async deleteNftRules(family: string, name: string, from: string, target: string, did: string[]): Promise<void> {
-    const listing = await this.run("nft", ["-a", "list", "chain", family, name, from]);
-    for (const line of listing.split("\n")) {
-      if (!new RegExp(`\\b(jump|goto) ${escape(target)}\\b`).test(line)) continue;
-      const handle = /# handle (\d+)/.exec(line)?.[1];
-      if (!handle) continue;
-      await this.run("nft", ["delete", "rule", family, name, from, "handle", handle]);
-      did.push(`nft delete rule ${family} ${name} ${from} handle ${handle}`);
-    }
+    const { stdout } = await run("nft", ["list", "table", "inet", "mesh"]);
+    return stdout;
  }
 }
-
-function splitTable(table: string): [string, string] {
-  const parts = table.trim().split(/\s+/);
-  if (parts.length !== 2) throw new Error(`a table is \`family name\`, not ${JSON.stringify(table)}`);
-  return [parts[0], parts[1]];
-}
-
-/** Which chains of a listed table jump or go to the named one. */
-export function chainsJumpingTo(listing: string, target: string): string[] {
-  const out: string[] = [];
-  let chain = "";
-  for (const raw of listing.split("\n")) {
-    const line = raw.trim();
-    const head = /^chain (\S+) \{/.exec(line);
-    if (head) { chain = head[1]; continue; }
-    if (line === "}") { chain = ""; continue; }
-    if (chain && chain !== target && new RegExp(`\\b(jump|goto) ${escape(target)}\\b`).test(line) && !out.includes(chain)) {
-      out.push(chain);
-    }
-  }
-  return out;
-}
-
-function escape(s: string): string {
-  return s.replace(/[.*+?^${}()|[\]\\-]/g, "\\$&");
-}
@@ -2,30 +2,18 @@
  "module": "nftables",
  "version": "1",
  "capabilities": [
-    "firewall",
-    "container-runtime"
+    "firewall"
  ],
  "claims": [
    {
      "name": "node-packet-filter",
-      "scope": "node",
-      "serves": [
-        "rules",
-        "reload",
-        "remove"
-      ]
+      "scope": "node"
    }
  ],
  "filtering": {
    "into": "/etc/nftables.conf"
  },
  "resources": [
-    {
-      "id": "mesh-state",
-      "type": "directory",
-      "mode": "0700",
-      "place": "mesh"
-    },
    {
      "id": "package",
      "type": "package",
@@ -58,57 +46,6 @@
      "reload-on": [
        "filtering"
      ]
-    },
-    {
-      "id": "front-end",
-      "type": "package",
-      "package": "ufw",
-      "absent": true
-    },
-    {
-      "id": "runtime",
-      "type": "container",
-      "name": "mesh-nftables",
-      "network": "host",
-      "capabilities": [
-        "NET_ADMIN"
-      ],
-      "volumes": [
-        "${dir:mesh-state}/broker:/run/secrets/broker:ro",
-        "/etc/nftables.conf:/etc/nftables.conf:ro"
-      ],
-      "env": {
-        "MESH_BROKER_FILE": "/run/secrets/broker",
-        "MESH_FILTER_FILE": "/etc/nftables.conf"
-      },
-      "artifact": "runtime"
    }
-  ],
-  "tools": [
-    "firewall_rules"
-  ],
-  "own-secrets": {
-    "broker": "${dir:mesh-state}/broker"
-  },
-  "build": {
-    "on": [
-      {
-        "arg": "BUILD_BASE",
-        "module": "mesh-tools",
-        "artifact": "build"
-      },
-      {
-        "arg": "RUNTIME_BASE",
-        "module": "mesh-tools",
-        "artifact": "runtime"
-      }
-    ],
-    "artifacts": [
-      {
-        "name": "runtime",
-        "kind": "image",
-        "from": "Dockerfile"
-      }
-    ]
-  }
+  ]
 }
@@ -1,15 +1,11 @@
 {
-  "name": "@novox/module-nftables",
+  "name": "@novox/module-firewall",
  "version": "0.1.0",
-  "description": "nftables — loads the mesh's packet filter and holds the node-packet-filter seat: its verbs rules, reload and remove (novox/hq ADR 0045, ADR 0170).",
+  "description": "firewall — applies the mesh-computed packet filter (ADR 0045). Its diagnostic tool lives here.
  "type": "module",
  "private": true,
-  "scripts": {
-    "build": "tsc client.ts tools/index.ts --module NodeNext --moduleResolution NodeNext --target ES2022 --outDir dist",
-    "test": "node --test --experimental-strip-types 'test/*.test.ts'"
-  },
  "dependencies": {
-    "@novox/mesh-sdk": "^0.1.1"
+    "@novox/mesh-sdk": "^0.1.0"
  },
  "devDependencies": {
    "@types/node": "^22.0.0",
@@ -1,74 +0,0 @@
-// `remove` acts on one rule set the mesh did not write, named as the host reports it (novox/hq ADR
-// 0168, 0169), over the shapes two machines of the first mesh reported live: a predecessor's chain in
-// the legacy filter, the runtime's user chain in the IPv6 legacy filter, a leftover front-end chain,
-// and the same in an iptables-nft table. It refuses what is not the operator's to remove.
-import { test } from "node:test";
-import assert from "node:assert/strict";
-import { FirewallClient, chainsJumpingTo, type Runner } from "../client.ts";
-
-const legacy = [
-  "-P INPUT ACCEPT", "-P FORWARD DROP", "-P OUTPUT ACCEPT",
-  "-N DOCKER", "-N DOCKER-USER", "-N HAL-MESH-ONLY",
-  "-A FORWARD -j DOCKER-USER",
-  "-A DOCKER-USER -i enp6s0 -p tcp -m conntrack --ctstate NEW -j HAL-MESH-ONLY",
-  "-A HAL-MESH-ONLY -m conntrack --ctorigdstport 80 -j RETURN",
-  "-A HAL-MESH-ONLY -m comment --comment \"HAL: not public -> mesh only\" -j DROP",
-].join("\n") + "\n";
-
-function fake(ufwActive = false): { run: Runner; asked: string[] } {
-  const asked: string[] = [];
-  const run: Runner = async (cmd, args) => {
-    asked.push([cmd, ...args].join(" "));
-    if (cmd === "ufw") return ufwActive ? "Status: active\n" : "Status: inactive\n";
-    if (args.join(" ") === "-S") return legacy;
-    if (cmd === "nft" && args[0] === "list" && args[1] === "table") {
-      return "table ip6 own {\n\tchain forward {\n\t\ttype filter hook forward priority filter; policy accept;\n\t\tjump deny\n\t}\n\tchain deny {\n\t\tdrop\n\t}\n}\n";
-    }
-    if (cmd === "nft" && args[0] === "-a") {
-      return "table ip6 own {\n\tchain forward {\n\t\ttype filter hook forward priority filter; policy accept;\n\t\tjump deny # handle 7\n\t}\n}\n";
-    }
-    return "";
-  };
-  return { run, asked };
-}
-
-test("a predecessor's chain in the legacy filter loses its jumps, is flushed and deleted", async () => {
-  const f = fake();
-  const out = await new FirewallClient(f.run).remove("chain HAL-MESH-ONLY (iptables-legacy)");
-  assert.deepEqual(out.did, [
-    "iptables-legacy -D DOCKER-USER -i enp6s0 -p tcp -m conntrack --ctstate NEW -j HAL-MESH-ONLY",
-    "iptables-legacy -F HAL-MESH-ONLY",
-    "iptables-legacy -X HAL-MESH-ONLY",
-  ]);
-});
-
-test("the runtime's user chain is emptied back to its one return, never deleted", async () => {
-  const f = fake();
-  const out = await new FirewallClient(f.run).remove("chain DOCKER-USER (ip6tables-legacy)");
-  assert.deepEqual(out.did, ["ip6tables-legacy -F DOCKER-USER", "ip6tables-legacy -A DOCKER-USER -j RETURN"]);
-  const nft = await new FirewallClient(fake().run).remove("table ip6 filter, chain DOCKER-USER");
-  assert.deepEqual(nft.did, ["ip6tables -F DOCKER-USER", "ip6tables -A DOCKER-USER -j RETURN"]);
-});
-
-test("a chain of the machine's own nftables table goes with the rules that reach it", async () => {
-  const f = fake();
-  const out = await new FirewallClient(f.run).remove("table ip6 own, chain deny");
-  assert.deepEqual(out.did, ["nft delete rule ip6 own forward handle 7", "nft delete chain ip6 own deny"]);
-});
-
-test("what is not the operator's to remove is refused by name", async () => {
-  const c = new FirewallClient(fake(true).run);
-  await assert.rejects(c.remove("table inet mesh, chain forward"), /the mesh's own table/);
-  await assert.rejects(c.remove("chain DOCKER (iptables-legacy)"), /container runtime's own/);
-  await assert.rejects(c.remove("chain FORWARD (iptables-legacy)"), /built in/);
-  await assert.rejects(c.remove("chain ufw6-docker-logging-deny (ip6tables-legacy)"), /found firewall, which is in force/);
-  await assert.rejects(c.remove("something else"), /not a rule set as the host reports one/);
-  // Retired, a front end's leftover is nobody's and goes.
-  const retired = await new FirewallClient(fake(false).run).remove("chain ufw6-docker-logging-deny (ip6tables-legacy)");
-  assert.ok(retired.did.includes("ip6tables-legacy -X ufw6-docker-logging-deny"));
-});
-
-test("which chains jump to a target is read from a listing", () => {
-  const listing = "table ip6 own {\n\tchain a {\n\t\tjump deny\n\t}\n\tchain b {\n\t\tgoto deny\n\t}\n\tchain deny {\n\t\tdrop\n\t}\n}\n";
-  assert.deepEqual(chainsJumpingTo(listing, "deny"), ["a", "b"]);
-});
@@ -1,51 +1,19 @@
-// The packet filter's tools: the node-packet-filter seat's three verbs — what the machine enforces,
-// reload the mesh's own, remove one thing the mesh did not write — and the module's own reading of
-// the mesh's table (novox/hq ADR 0045, ADR 0168, ADR 0170).
+// firewall's tools — one, and the useful one: what is actually enforced. The rules are the mesh's,
+// computed from every module's listens; this reads the live table so a declared scope can be checked
+// against what the packet filter is really doing.
+
 import { registerModuleTools, type ToolDefinition } from "@novox/mesh-sdk/tools";
 import { FirewallClient } from "../client.js";

-export function getSeatVerbs(firewall: FirewallClient): ToolDefinition[] {
-  return [
-    {
-      name: "rules",
-      description:
-        "The packet filter as this machine enforces it now: the nftables ruleset and, where the tool exists, the legacy filter's listings. Narrowed to one table or chain when asked.",
-      input: {
-        table: { type: "string", description: "one nftables table, as `family name` (optional)" },
-        chain: { type: "string", description: "one chain of that table (optional)" },
-      },
-      run: async (args) => firewall.rules(args.table ? String(args.table) : undefined, args.chain ? String(args.chain) : undefined),
-    },
-    {
-      name: "reload",
-      description: "Load the mesh's own filter again from the file the mesh writes, and answer with the mesh's table as loaded.",
-      input: {},
-      run: async () => firewall.reload(),
-    },
-    {
-      name: "remove",
-      description:
-        "Remove one rule set the mesh did not write, named exactly as `node show` lists it: `chain X (iptables-legacy)` or `table ip6 filter, chain DOCKER-USER`. " +
-        "Refuses the mesh's tables, the runtime's own chains, a built-in chain and an active found firewall's chains. An operator's act, by name, never a flush.",
-      input: { where: { type: "string", description: "the rule set, as `node show` lists it" } },
-      run: async (args) => firewall.remove(String(args.where ?? "")),
-    },
-  ];
-}
-
 export function getFirewallTools(firewall: FirewallClient): ToolDefinition[] {
  return [
    {
      name: "firewall_rules",
-      description: "The mesh's live nftables table on this node — what the mesh's own filter is accepting and dropping.",
+      description: "The mesh's live nftables rules on this node — what is actually accepting and dropping.",
      input: {},
      run: async () => ({ ruleset: await firewall.ruleset() }),
    },
  ];
 }

-const firewall = FirewallClient.fromEnv();
-// The seat's verbs under the seat's name: the runtime serves them on the seat's subjects where this
-// module holds it (ADR 0159, 0160). The module's own under its own.
-registerModuleTools("node-packet-filter", () => getSeatVerbs(firewall));
-registerModuleTools("nftables", () => getFirewallTools(firewall));
+registerModuleTools("firewall", () => getFirewallTools(FirewallClient.fromEnv()));
@@ -0,0 +1,30 @@
+# portainer's runtime: the tool runtime, carrying this module's compiled code.
+#
+# **Built from this module's own directory and nothing else.** The sdk and the tool runtime are in
+# the base images, published like any other artifact — which is what makes this buildable by the
+# mesh from a repository and a path (novox/hq ADR 0069) rather than only on a workstation that
+# happens to have the siblings.
+#
+# Two bases, named rather than pinned (novox/hq issue 044): the image this is COMPILED in and the
+# image it RUNS in — the second must not carry a compiler. Declared in module.json's `build.on`.
+ARG BUILD_BASE
+ARG RUNTIME_BASE
+
+FROM ${BUILD_BASE} AS build
+# Compiled under /app/modules so `@novox/mesh-sdk` resolves upward into the base's own
+# node_modules — the module is compiled against exactly the sdk it will run against. The compiler
+# is invoked by its real path: node_modules/.bin entries are launcher symlinks the base image
+# resolved away.
+WORKDIR /app/modules/portainer
+COPY . .
+RUN node /app/node_modules/typescript/bin/tsc client.ts tools/index.ts \
+      --module NodeNext --moduleResolution NodeNext --target ES2022 --outDir dist
+
+FROM ${RUNTIME_BASE}
+COPY --from=build /app/modules/portainer/dist /app/modules/portainer/dist
+# Every serve-time entrypoint, loaded by the runtime in serve mode: tools and events serve, and a
+# provider's provisioner runs its reconcile loop in the same process, with the broker connected —
+# the convention novox/hq issues 060/061 settled. A container that instead ran only its
+# provisioner (`run`) served no tools and emitted no events; a container that named no command
+# ran no provisioner at all.
+ENV MESH_TOOL_MODULES=/app/modules/portainer/dist/tools/index.js
@@ -0,0 +1,107 @@
+// The Portainer API client — portainer's own code, living in the module (novox/hq ADR 0039).
+// portainer is tools-only: its "events" would really be the underlying containers' lifecycle,
+// which the host owns and emits — so this module reads Portainer's own resources (endpoints,
+// stacks, containers) and exposes them, and stops there.
+
+import { readFileSync } from "node:fs";
+
+export interface PortainerEndpoint {
+  id: number;
+  name: string;
+  type: number;
+  url: string;
+  status: number;
+}
+
+export interface PortainerStack {
+  id: number;
+  name: string;
+  type: number;
+  endpointId: number;
+  status: number;
+}
+
+export interface PortainerContainer {
+  id: string;
+  names: string[];
+  image: string;
+  state: string;
+  status: string;
+}
+
+/** The settings-merged config the mesh delivers (novox/hq ADR 0046): { url, apiKey, token, password, user, ... }. */
+function meshConfig(file?: string): Record<string, string> {
+  if (!file) return {};
+  try { return JSON.parse(readFileSync(file, "utf8")) as Record<string, string>; }
+  catch { return {}; }
+}
+
+export class PortainerClient {
+  readonly baseUrl: string;
+
+  constructor(
+    url: string,
+    private readonly token: string,
+  ) {
+    this.baseUrl = url.replace(/\/+$/, "");
+  }
+
+  /**
+   * Build from the module's resolved environment. The URL is MESH_PORTAINER_URL (or the local
+   * dashboard port) and the API token is MESH_PORTAINER_TOKEN — an access token minted in
+   * Portainer, sent as X-API-Key. Throws when no token is configured, so a misconfigured module
+   * exposes nothing rather than calling Portainer unauthenticated.
+   */
+  static fromEnv(env: NodeJS.ProcessEnv = process.env): PortainerClient {
+    const cfg = meshConfig(env.MESH_PORTAINER_CONFIG_FILE);
+    const url = cfg.url ?? env.MESH_PORTAINER_URL ?? `https://127.0.0.1:${env.PORTAINER_PORT ?? "9443"}`;
+    const token = cfg.token ?? env.MESH_PORTAINER_TOKEN;
+    if (!token) throw new Error("no Portainer token — set MESH_PORTAINER_TOKEN");
+    return new PortainerClient(url, token);
+  }
+
+  private async get<T>(path: string): Promise<T> {
+    const res = await fetch(`${this.baseUrl}${path}`, { headers: { "X-API-Key": this.token } });
+    if (!res.ok) throw new Error(`Portainer ${path}: ${res.status} ${await res.text()}`);
+    return res.json() as Promise<T>;
+  }
+
+  /** The environments (endpoints) Portainer manages — each a Docker host or cluster it talks to. */
+  async listEndpoints(): Promise<PortainerEndpoint[]> {
+    const raw = await this.get<any[]>("/api/endpoints");
+    return (raw ?? []).map((e) => ({
+      id: e.Id,
+      name: e.Name,
+      type: e.Type,
+      url: e.URL,
+      status: e.Status,
+    }));
+  }
+
+  /** The stacks (compose/swarm deployments) Portainer knows about. */
+  async listStacks(): Promise<PortainerStack[]> {
+    const raw = await this.get<any[]>("/api/stacks");
+    return (raw ?? []).map((s) => ({
+      id: s.Id,
+      name: s.Name,
+      type: s.Type,
+      endpointId: s.EndpointId,
+      status: s.Status,
+    }));
+  }
+
+  /**
+   * The containers on one endpoint, read through Portainer's Docker API proxy. Includes stopped
+   * containers, so the caller sees the whole picture rather than only what is running.
+   */
+  async listContainers(endpointId: number): Promise<PortainerContainer[]> {
+    const raw = await this.get<any[]>(`/api/endpoints/${endpointId}/docker/containers/json?all=1`);
+    return (raw ?? []).map((c) => ({
+      id: c.Id,
+      names: c.Names ?? [],
+      image: c.Image,
+      state: c.State,
+      status: c.Status,
+    }));
+  }
+}
@@ -0,0 +1,114 @@
+{
+  "module": "portainer",
+  "version": "1",
+  "slug": "portain",
+  "capabilities": [
+    "container-runtime"
+  ],
+  "listens": [
+    {
+      "name": "web",
+      "port": 9000,
+      "protocol": "tcp",
+      "from": "mesh",
+      "why": "the dashboard over http; its public name is a route grant and the proxy reaches it here"
+    },
+    {
+      "name": "web-tls",
+      "port": 9443,
+      "protocol": "tcp",
+      "from": "mesh",
+      "why": "the same dashboard over its own tls; the runtime sidecar talks to it here"
+    }
+  ],
+  "resources": [
+    {
+      "id": "mesh-state",
+      "type": "directory",
+      "mode": "0700",
+      "place": "mesh"
+    },
+    {
+      "id": "data",
+      "type": "directory",
+      "mode": "0700"
+    },
+    {
+      "id": "server",
+      "type": "container",
+      "name": "portainer",
+      "image": "portainer/portainer-ce@sha256:4d616db18cfeb5dd41a69c0958bc825c84483ea9cde1106eb82a5d26f3bd8b0e",
+      "ports": [
+        "9000",
+        "9443"
+      ],
+      "volumes": [
+        "${dir:data}:/data",
+        "/var/run/docker.sock:/var/run/docker.sock"
+      ]
+    },
+    {
+      "id": "runtime-config",
+      "type": "file",
+      "path": "${dir:mesh-state}/config.json",
+      "mode": "0600",
+      "content": "{}\n",
+      "merge": "json"
+    },
+    {
+      "id": "runtime",
+      "type": "container",
+      "name": "mesh-portainer",
+      "network": "host",
+      "volumes": [
+        "${dir:mesh-state}/broker:/run/secrets/broker:ro",
+        "${dir:mesh-state}/config.json:/run/config/config.json:ro"
+      ],
+      "env": {
+        "MESH_BROKER_FILE": "/run/secrets/broker",
+        "MESH_PORTAINER_URL": "https://127.0.0.1:9443",
+        "MESH_PORTAINER_CONFIG_FILE": "/run/config/config.json"
+      },
+      "restart-on": [
+        "runtime-config"
+      ],
+      "artifact": "runtime"
+    }
+  ],
+  "own-secrets": {
+    "broker": "${dir:mesh-state}/broker"
+  },
+  "build": {
+    "on": [
+      {
+        "arg": "BUILD_BASE",
+        "module": "mesh-tools",
+        "artifact": "build"
+      },
+      {
+        "arg": "RUNTIME_BASE",
+        "module": "mesh-tools",
+        "artifact": "runtime"
+      }
+    ],
+    "artifacts": [
+      {
+        "name": "runtime",
+        "kind": "image",
+        "from": "Dockerfile"
+      }
+    ]
+  },
+  "requires": [
+    "route"
+  ],
+  "contributes": {
+    "route": {
+      "label": "portainer",
+      "endpoint": "web"
+    }
+  },
+  "binds": {
+    "route": "${dir:mesh-state}/route.json"
+  }
+}
@@ -0,0 +1,14 @@
+{
+  "name": "@novox/module-portainer",
+  "version": "0.1.0",
+  "description": "portainer — container management UI. Its API client and tools live here (novox/hq ADR 0039).",
+  "type": "module",
+  "private": true,
+  "dependencies": {
+    "@novox/mesh-sdk": "^0.1.0"
+  },
+  "devDependencies": {
+    "@types/node": "^22.0.0",
+    "typescript": "^5.6.0"
+  }
+}
@@ -0,0 +1,50 @@
+// portainer's tools — its own code (novox/hq ADR 0039), importing portainer's own client. They
+// return structured data; the mesh serves them through the sdk's tool harness. portainer is
+// tools-only (no events entrypoint): a container starting or stopping is the host's signal to emit,
+// not Portainer's to re-announce.
+
+import { registerModuleTools, type ToolDefinition } from "@novox/mesh-sdk/tools";
+import { PortainerClient } from "../client.js";
+
+export function getPortainerTools(portainer: PortainerClient): ToolDefinition[] {
+  return [
+    {
+      name: "portainer_endpoints",
+      description: "List the environments (endpoints) Portainer manages — each a Docker host or cluster.",
+      input: {},
+      run: async () => {
+        const endpoints = await portainer.listEndpoints();
+        return { count: endpoints.length, endpoints };
+      },
+    },
+    {
+      name: "portainer_stacks",
+      description: "List the stacks (compose/swarm deployments) Portainer knows about.",
+      input: {},
+      run: async () => {
+        const stacks = await portainer.listStacks();
+        return { count: stacks.length, stacks };
+      },
+    },
+    {
+      name: "portainer_containers",
+      description: "List the containers on one Portainer endpoint, including stopped ones.",
+      input: { endpoint: { type: "number", description: "the endpoint id (see portainer_endpoints)" } },
+      run: async (args) => {
+        const endpointId = Number(args.endpoint);
+        const containers = await portainer.listContainers(endpointId);
+        return { endpointId, count: containers.length, containers };
+      },
+    },
+  ];
+}
+
+// The tools exist only when a token is configured; without one, portainer contributes none rather
+// than failing the whole runtime.
+registerModuleTools("portainer", (env) => {
+  try {
+    return getPortainerTools(PortainerClient.fromEnv(env));
+  } catch {
+    return [];
+  }
+});
@@ -8,5 +8,5 @@
    "skipLibCheck": true,
    "noEmit": true
  },
-  "include": ["tools/index.ts", "tools/runs.ts"]
+  "include": ["client.ts", "tools/index.ts"]
 }
@@ -25,9 +25,6 @@
    "acme-ca": "${dir:state}/acme-ca.json",
    "internal-acme-ca": "${dir:state}/internal-acme-ca.json"
  },
-  "own-secrets": {
-    "broker": "${dir:mesh-state}/broker"
-  },
  "listens": [
    {
      "name": "http",
@@ -51,12 +48,6 @@
      "mode": "0700",
      "place": "."
    },
-    {
-      "id": "mesh-state",
-      "type": "directory",
-      "mode": "0700",
-      "place": "mesh"
-    },
    {
      "id": "routes-dir",
      "type": "directory",
@@ -89,6 +80,13 @@
      "mode": "0600",
      "content": "INTERNAL_ACME_DIRECTORY=https://${bound:internal-acme-ca:at}:${bound:internal-acme-ca:port}${bound:internal-acme-ca:path}\nINTERNAL_ACME_ROOTS=https://${bound:internal-acme-ca:at}:${bound:internal-acme-ca:port}${bound:internal-acme-ca:roots}\nINTERNAL_ACME_ROOTS_PATH=${bound:internal-acme-ca:roots}\n"
    },
+    {
+      "id": "internal-sources-env",
+      "type": "file",
+      "path": "${dir:state}/internal-sources.env",
+      "mode": "0600",
+      "content": "INTERNAL_SOURCES=${machine:mesh-range}\n"
+    },
    {
      "id": "trust",
      "type": "container",
@@ -141,13 +139,13 @@
      "network": "host",
      "env-file": [
        "${dir:state}/acme.env",
-        "${dir:state}/internal-acme.env"
+        "${dir:state}/internal-acme.env",
+        "${dir:state}/internal-sources.env"
      ],
      "volumes": [
        "${dir:routes-dir}:/routes:ro",
        "${dir:acme-cache}:/acme",
-        "${dir:ca-dir}:/ca:ro",
-        "${dir:mesh-state}/broker:/run/secrets/broker:ro"
+        "${dir:ca-dir}:/ca:ro"
      ],
      "env": {
        "ROUTES": "/routes/mesh.json",
@@ -155,16 +153,15 @@
        "TLS_LISTEN": ":443",
        "ACME_CACHE": "/acme",
        "ACME_CA_BUNDLE": "/ca/root.crt",
-        "INTERNAL_ACME_CA_BUNDLE": "/ca/internal-root.crt",
-        "MESH_BROKER_FILE": "/run/secrets/broker"
+        "INTERNAL_ACME_CA_BUNDLE": "/ca/internal-root.crt"
      },
      "restart-on": [
        "trust",
        "acme-env",
        "internal-trust",
-        "internal-acme-env"
-      ],
-      "logging": "journald"
+        "internal-acme-env",
+        "internal-sources-env"
+      ]
    }
  ],
  "build": {
@@ -195,12 +192,5 @@
        "image": "alpine@sha256:d9e853e87e55526f6b2917df91a2115c36dd7c696a35be12163d44e6e2a4b6bc"
      }
    ]
-  },
-  "jails": [
-    {
-      "name": "route-proxy",
-      "failregex": "^.*TLS handshake error from <HOST>:\\d+: (?:no public route for|acme/autocert: missing server name)\n            ^.*refused: no route for .*, asked from <HOST>:\\d+$",
-      "jail": "backend = systemd\njournalmatch = CONTAINER_NAME=route-proxy\nport = http,https\nmaxretry = 10\nfindtime = 1d\nbantime = 1d"
-    }
-  ]
+  }
 }
@@ -23,19 +23,6 @@ export interface UnifiPortForward {
  site_id?: string;
 }

-export interface UnifiNetwork {
-  _id: string;
-  name: string;
-  purpose: string;
-  ip_subnet?: string;
-  dhcpd_enabled?: boolean;
-  dhcpd_dns_enabled?: boolean;
-  dhcpd_dns_1?: string;
-  dhcpd_dns_2?: string;
-  dhcpd_dns_3?: string;
-  dhcpd_dns_4?: string;
-}
-
 export interface UnifiDevice {
  _id: string;
  name: string;
@@ -245,17 +232,6 @@ export class UnifiApiClient {
    await this.request<unknown>("DELETE", `/api/s/${this.site}/rest/portforward/${id}`);
  }

-  // --- Networks ---
-
-  async listNetworks(): Promise<UnifiNetwork[]> {
-    return this.request<UnifiNetwork>("GET", `/api/s/${this.site}/rest/networkconf`);
-  }
-
-  async updateNetwork(id: string, fields: Partial<UnifiNetwork>): Promise<UnifiNetwork> {
-    const result = await this.request<UnifiNetwork>("PUT", `/api/s/${this.site}/rest/networkconf/${id}`, fields);
-    return result[0];
-  }
-
  // --- Devices ---

  async listDevices(): Promise<UnifiDevice[]> {
@@ -1,23 +1,10 @@
 // unifi's tools — its own code (novox/hq ADR 0039), importing unifi's own client. They return
 // structured data; the mesh serves them through the sdk's tool harness. unifi is tools-only (no
 // events entrypoint): the controller does not push lifecycle events the mesh consumes, so this
-// module reads its resources — port forwards, networks, devices, clients — and exposes them, and stops there.
+// module reads its resources — port forwards, devices, clients — and exposes them, and stops there.

 import { registerModuleTools, type ToolDefinition } from "@novox/mesh-sdk/tools";
-import { UnifiApiClient, type UnifiNetwork, type UnifiPortForward } from "../client.js";
-
-function summarizeNetwork(n: UnifiNetwork): Record<string, unknown> {
-  const dns = [n.dhcpd_dns_1, n.dhcpd_dns_2, n.dhcpd_dns_3, n.dhcpd_dns_4].filter((s): s is string => !!s);
-  return {
-    id: n._id,
-    name: n.name,
-    purpose: n.purpose,
-    subnet: n.ip_subnet ?? null,
-    dhcp: n.dhcpd_enabled ?? null,
-    // What DHCP hands out as DNS: the listed servers when set, otherwise the gateway itself.
-    dhcp_dns: n.dhcpd_dns_enabled ? dns : "the gateway",
-  };
-}
+import { UnifiApiClient, type UnifiPortForward } from "../client.js";

 function summarizePortForward(r: UnifiPortForward): Record<string, unknown> {
  return {
@@ -101,40 +88,6 @@ export function getUnifiTools(unifi: UnifiApiClient): ToolDefinition[] {
        return { deleted: true, id: String(args.id) };
      },
    },
-    {
-      name: "unifi_list_networks",
-      description: "List the networks the UniFi controller manages, with the DNS servers each one's DHCP hands out.",
-      input: {},
-      run: async () => {
-        const nets = await unifi.listNetworks();
-        return { count: nets.length, networks: nets.map(summarizeNetwork) };
-      },
-    },
-    {
-      name: "unifi_set_network_dns",
-      description:
-        "Set the DNS servers a network's DHCP hands out to its devices (see unifi_list_networks for ids). " +
-        "Up to four addresses, comma-separated; \"gateway\" hands out the gateway itself. Devices pick it up when they renew.",
-      input: {
-        id: { type: "string", description: "the network id" },
-        dns: { type: "string", description: "comma-separated DNS server addresses, or \"gateway\"" },
-      },
-      run: async (args) => {
-        const asked = String(args.dns ?? "").trim();
-        if (!asked) return { updated: false, reason: "say dns: addresses, or \"gateway\"" };
-        const servers = asked === "gateway" ? [] : asked.split(",").map((s) => s.trim()).filter(Boolean);
-        if (servers.length > 4) return { updated: false, reason: "DHCP hands out at most four DNS servers" };
-        const fields: Partial<UnifiNetwork> = {
-          dhcpd_dns_enabled: servers.length > 0,
-          dhcpd_dns_1: servers[0] ?? "",
-          dhcpd_dns_2: servers[1] ?? "",
-          dhcpd_dns_3: servers[2] ?? "",
-          dhcpd_dns_4: servers[3] ?? "",
-        };
-        const net = await unifi.updateNetwork(String(args.id), fields);
-        return { updated: summarizeNetwork(net) };
-      },
-    },
    {
      name: "unifi_list_devices",
      description: "List the network devices (APs, switches, gateways) the UniFi controller manages.",