registry / anon-pi / 0.13.0

anon-pi@0.13.0

Launch pi inside a netcage: anonymized web egress through a socks5h proxy, one direct hole for a local model, seeded pi config on the host.

AI Security Review

scanned 20h ago · by lpm-firewall-ai

No confirmed malicious attack surface. The package is a user-invoked CLI that launches pi through netcage, manages anon-pi state, and optionally probes user-supplied proxy/local model endpoints.

Static reason

One or more suspicious static signals were detected.

Trigger

User runs the anon-pi CLI or its explicit init/machine/delete/forward commands.

Impact

Can spawn netcage/podman and modify/delete anon-pi-managed local state when explicitly invoked; no install-time or import-time attack found.

Mechanism

Package-aligned container launcher and local state manager

Rationale

The suspicious primitives are expected for this CLI's documented purpose: launching jailed containers, verifying a proxy, seeding local pi config, and managing its own workspace. There are no lifecycle hooks, import-time side effects, hardcoded exfiltration endpoints, credential harvesting, or unconsented writes to broad/foreign AI-agent control surfaces.

Evidence

package.jsonsrc/index.tssrc/cli.tssrc/anon-pi.tsDockerfile.piexamples/Dockerfile.pi-webveildist/cli.js~/.anon-pi/config.json~/.anon-pi/machines/*~/.anon-pi/projects/*/root/.pi/agent

Network endpoints2

<user-supplied-local-model>/v1/modelssocks5h://<user-supplied-proxy>

Decision evidence

public snapshot

AI called this Clean at 90.0% confidence as Benign with low false-positive risk.

Evidence for block

src/cli.ts imports child_process and spawns netcage, podman, sh, ps, and node workers from the user-invoked CLI.
src/cli.ts has explicit destructive verbs using rmSync for anon-pi machine homes/projects after confirmation or --yes.
src/anon-pi.ts seeds /root/.pi/agent inside the launched container home on first launch.

Evidence against

package.json has no npm lifecycle hooks; only bin anon-pi points to dist/cli.js.
src/index.ts only exports pure planning logic; no import-time execution.
Network activity is user-configured/package-aligned: netcage proxy verification and local model http://<host:port>/v1/models.
Writes are scoped to anon-pi workspace/machine/project paths or the launched container's pi agent home, not foreign agent control surfaces.
No credential harvesting or exfiltration endpoint found; real local LLM API keys are refused unless explicitly forced.

Behavioral surface

Source

ChildProcessEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

Manifest

CopyleftLicense

scanned 6 file(s), 421 KB of source, external domains: github.com

Source & flagged code

3 flagged

dist/cli.jsView file

Lines 1-34javascript

1#!/usr/bin/env node

2// anon-pi CLI: the THIN impure launch path. Parses grammar A (pure

3// parseLaunchArgs), reads config.json / machine.json + resolves the machine,

4// composes the LaunchIntent, resolves the RunPlan (pure resolveRunPlan), decides

5// run-vs-start against real netcage for `--keep`, and spawns netcage with

6// inherited stdio (so -it is a real interactive TTY), propagating the exit code.

7//

8// All the DECISIONS live in the pure module (anon-pi.ts); this file only does

9// I/O: fs reads/mkdirs, the netcage query, the spawn, and the TTY discipline.

10// The forced-egress invariant is the RunPlan's guarantee: the composed argv

11// ALWAYS carries --proxy + the one --allow-direct; the CLI never strips or adds

12// egress.

13import { existsSync, mkdirSync, readdirSync, readFileSync, rmSync, writeFileSync, } from 'node:fs';

14import { readSync } from 'node:fs';

15import { spawnSync, execFileSync } from 'node:child_process';

16import { join, dirname, resolve } from 'node:path';

High

Child Process

Package source references child process execution.

dist/cli.jsView on unpkg · L14

17import { AnonPiError, HELP, MODELS_FILE, SETTINGS_FILE, SETTINGS_SEED_FILE, SEED_MARKER, DEFAULT_MACHINE, envFromProcess, buildMenuChoiceList, buildMenuEntries, builtinProjectsRoot, deriveProjectUsage, expandTilde, findingsFromNetcageDetect, processNoteFromNetcageDetect, resolveNetcageGraphroot, globalModelsSeedPath, globalSettingsSeedPath, machineAgentDir, machineDir, machineHomeDir, machineJsonPath, machineModelsSeedPath, machineSessionsDir, mergeModelSelection, resolveModelsSeedPath, resolveSettingsSeedPath, validateName, resolveDeleteHome, resolveDeleteProject, parseConfigJson, parseLaunch ...

18// The netcage label anon-pi stamps its launch-identity key onto (keptContainerKey)

19// so a `--keep` re-entry can find and `netcage start` the same kept container.

20// netcage's `netcage.managed` label marks it a managed container; this adds the

21// anon-pi identity ON TOP (netcage's label IS the registry; anon-pi adds no file).

22const ANON_PI_KEY_LABEL = 'anon-pi.key';

23function main(argv) {

24 const args = argv.slice(2);

25 // `--version`/`-V` prints anon-pi's own version and exits (before the launch

26 // grammar, so it is never parsed as a project/flag). For pi's version inside

27 // the jail, forward it: `anon-pi pi --version`.

28 if (args[0] === '--version' || args[0] === '-V') {

29 process.stdout.write(`anon-pi ${anonPiVersion() ?? '(unknown)'}\n`);

30 return 0;

31 }

32 // The global `--help`/`-h` prints the top-level HELP, EXCEPT when the first

33 // token is a subcommand that owns its own `--help` (so `anon-pi init --help`

34 // and `anon-pi machine --help` show THEIR help, not the global one). Those

Long lines were clipped for display.

Lines 1065-1105javascript

1065 const ans = promptLine(`Choose a number, or enter host:port${prefill}: `);

1066 if (ans === undefined) {

1067 process.stderr.write('anon-pi: aborted; nothing written.\n');

1068 return undefined;

1069 }

1070

Lines 1604-1644javascript

1604 * `netcage build`/`load` verbs remove this dance). Returns true on success.

1605 */

1606function loadImageIntoNetcageStore(tag) {

1607 const graphroot = resolveNetcageGraphroot(process.env);

1608 process.stdout.write(` Loading ${tag} into netcage's store (${graphroot}) so

Source & flagged code

3 flagged · loading source

dist/cli.jsView file

14import { readSync } from 'node:fs'; L15: import { spawnSync, execFileSync } from 'node:child_process'; L16: import { join, dirname, resolve } from 'node:path';

High

Child Process

Package source references child process execution.

dist/cli.jsView on unpkg · L14

1624} L1625: /** Minimal POSIX single-quote shell-quoting for a token embedded in `sh -c`. */ L1626: function shQuote(s) {

High

Shell

Package source references shell execution.

dist/cli.jsView on unpkg · L1624

1085if (chosen === undefined || chosen === '') { L1086: process.stdout.write(' Please pick a listed number or enter a host:port.\n'); L1087: continue; ... L1095: process.stderr.write('anon-pi: `netcage` not found on PATH, cannot verify the exit IP. Install\n' + L1096: 'it first (https://github.com/wighawag/netcage). Linux only.\n'); L1097: return undefined; L1098: } L1099: const verify = spawnSync('netcage', ['verify', '--proxy', url], { L1100: encoding: 'utf8',

High

Command Output Exfiltration

Source combines command execution, command-output handling, and outbound requests; review data flow before blocking.

dist/cli.jsView on unpkg · L1085

Findings

3 High2 Medium5 Low

HighChild Processdist/cli.js

HighShelldist/cli.js

HighCommand Output Exfiltrationdist/cli.js

MediumNetwork

MediumEnvironment Vars

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

LowCopyleft License

Source & flagged code

3 flagged

dist/cli.jsView file

Lines 1-34javascript

1#!/usr/bin/env node

2// anon-pi CLI: the THIN impure launch path. Parses grammar A (pure

3// parseLaunchArgs), reads config.json / machine.json + resolves the machine,

4// composes the LaunchIntent, resolves the RunPlan (pure resolveRunPlan), decides

5// run-vs-start against real netcage for `--keep`, and spawns netcage with

6// inherited stdio (so -it is a real interactive TTY), propagating the exit code.

7//

8// All the DECISIONS live in the pure module (anon-pi.ts); this file only does

9// I/O: fs reads/mkdirs, the netcage query, the spawn, and the TTY discipline.

10// The forced-egress invariant is the RunPlan's guarantee: the composed argv

11// ALWAYS carries --proxy + the one --allow-direct; the CLI never strips or adds

12// egress.

13import { existsSync, mkdirSync, readdirSync, readFileSync, rmSync, writeFileSync, } from 'node:fs';

14import { readSync } from 'node:fs';

15import { spawnSync, execFileSync } from 'node:child_process';

16import { join, dirname, resolve } from 'node:path';

High

Child Process

Package source references child process execution.

dist/cli.jsView on unpkg · L14

18// The netcage label anon-pi stamps its launch-identity key onto (keptContainerKey)

19// so a `--keep` re-entry can find and `netcage start` the same kept container.

20// netcage's `netcage.managed` label marks it a managed container; this adds the

21// anon-pi identity ON TOP (netcage's label IS the registry; anon-pi adds no file).

22const ANON_PI_KEY_LABEL = 'anon-pi.key';

23function main(argv) {

24 const args = argv.slice(2);

25 // `--version`/`-V` prints anon-pi's own version and exits (before the launch

26 // grammar, so it is never parsed as a project/flag). For pi's version inside

27 // the jail, forward it: `anon-pi pi --version`.

28 if (args[0] === '--version' || args[0] === '-V') {

29 process.stdout.write(`anon-pi ${anonPiVersion() ?? '(unknown)'}\n`);

30 return 0;

31 }

32 // The global `--help`/`-h` prints the top-level HELP, EXCEPT when the first

33 // token is a subcommand that owns its own `--help` (so `anon-pi init --help`

34 // and `anon-pi machine --help` show THEIR help, not the global one). Those

Long lines were clipped for display.

Lines 1065-1105javascript

1065 const ans = promptLine(`Choose a number, or enter host:port${prefill}: `);

1066 if (ans === undefined) {

1067 process.stderr.write('anon-pi: aborted; nothing written.\n');

1068 return undefined;

1069 }

1070

Lines 1604-1644javascript

1604 * `netcage build`/`load` verbs remove this dance). Returns true on success.

1605 */

1606function loadImageIntoNetcageStore(tag) {

1607 const graphroot = resolveNetcageGraphroot(process.env);

1608 process.stdout.write(` Loading ${tag} into netcage's store (${graphroot}) so