registry / @maxiaochao/pi-toolkit / 0.11.7

@maxiaochao/pi-toolkit@0.11.7

Personal pi coding agent toolkit: scheduler, /btw, /cache_export, apply_patch, browser automation, and bundled theme/skills.

AI Security Review

scanned 10d ago · by lpm-firewall-ai

The postinstall hook changes global Pi agent guidance without a separate consent check, creating an agent configuration lifecycle risk. The source indicates first-party Pi setup rather than a concrete attack, so a warning is appropriate.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

Installing the package with npm, which runs its postinstall hook.

Impact

Package-authored guidance can replace the user's global Pi instructions. The source shows a first-party Pi setup, so this supports a warning rather than a confirmed attack.

Mechanism

The installer copies the package's global AGENTS.md into the Pi agent directory and replaces differing contents.

AI rationale

Evidence

package.jsonscripts/install-agents.mjsglobal/AGENTS.md~/.pi/agent/AGENTS.md

Decision evidence

public snapshot

AI called this Suspicious at 88.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The package runs an installer automatically through its postinstall hook.
The installer copies bundled guidance into the user's global Pi agent directory, replacing that file when its contents differ.
The bundled guidance is for coding agents and says project-specific instructions take precedence.
The same installer sets a default theme and installs this package's own worktree command.

Evidence against

The configuration changes target this Pi toolkit's own agent directory and bundled guidance; the inspected installer does not show changes to another agent platform.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsUrlStrings

Manifest

NoLicense

scanned 92 file(s), 812 KB of source, external domains: 127.0.0.1, example.com, github.com

Source & flagged code

13 flagged

package.jsonView file

•scripts.postinstall = node scripts/install-agents.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

packages/worktree/tests/extension.test.mjsView file

57L58: const extension = (await import(`${extensionUrl}?test=${Math.random()}`)).default; L59: extension(pi);

Medium

Dynamic Require

Package source references dynamic require/import behavior.

packages/worktree/tests/extension.test.mjsView on unpkg · L57

scripts/install-agents.mjsView file

1// postinstall hook: sync the bundled global AGENTS.md and seed the default theme L2: // without overriding a theme the user has already selected. L3: import { readFileSync, writeFileSync, mkdirSync, existsSync } from "node:fs"; L4: import { homedir } from "node:os"; ... L11: const agentDir = join(homedir(), ".pi", "agent"); L12: const bundled = readFileSync(join(dirname(fileURLToPath(import.meta.url)), "..", "global", "AGENTS.md"), "utf8"); L13: const agentsTarget = join(agentDir, "AGENTS.md"); L14: const settingsTarget = join(agentDir, "settings.json"); ... L16: if (!existsSync(agentsTarget) || readFileSync(agentsTarget, "utf8") !== bundled) { L17: mkdirSync(dirname(agentsTarget), { recursive: true }); L18: writeFileSync(agentsTarget, bundled, "utf8"); L19: console.log("[pi-toolkit]

Critical

Ai Agent Control Hijack

Source creates an unconsented AI-agent control surface through install-time mutation or a default unauthenticated remote skill channel.

scripts/install-agents.mjsView on unpkg · L1

skills/pdlog/tools/ppmdView file

•path = skills/pdlog/tools/ppmd kind = native_binary sizeBytes = 68456 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

skills/pdlog/tools/ppmdView on unpkg

packages/worktree/bin/pi-worktree-completion.bashView file

•path = packages/worktree/bin/pi-worktree-completion.bash kind = build_helper sizeBytes = 1338 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

packages/worktree/bin/pi-worktree-completion.bashView on unpkg

packages/worktree/tests/run-tests.shView file

•path = packages/worktree/tests/run-tests.sh kind = payload_in_excluded_dir sizeBytes = 4687 magicHex = [redacted]

High

Payload In Excluded Dir

Package hides binary, compressed, or executable-looking payloads in test/fixture/hidden paths.

packages/worktree/tests/run-tests.shView on unpkg

packages/codex-edit/tests/generate-test-report.mjs#virtual:string-array:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 2

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

packages/codex-edit/tests/generate-test-report.mjs#virtual:string-array:round1View on unpkg

skills/web-browser/scripts/start.jsView file

•matchType = normalized_sha256 matchedPackage = @maxiaochao/pi-toolkit@0.11.5 matchedPath = skills/web-browser/scripts/start.js matchedIdentity = npm:QG1heGlhb2NoYW8vcGktdG9vbGtpdA:0.11.5 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High