registry / AI-agent capability abuse / @p4code/cli / 0.6.18

@p4code/cli@0.6.18

P4 Code coding agent server and command-line client

AI Security Review

scanned 24d ago · by lpm-firewall-ai

This is a concrete, guarded AI-agent configuration capability and warrants a warning under the agent integration policy. Static inspection found no install hook or confirmed covert attack behavior.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review

Trigger

An authorized thread invokes the memory append tool.

Impact

An authorized agent session could alter durable instructions read by an AI agent.

Mechanism

The tool allowlists memory filenames, resolves the agent configuration directory, and atomically writes appended caller text.

AI rationale

This is a concrete, guarded AI-agent configuration capability and warrants a warning under the agent integration policy. Static inspection found no install hook or confirmed covert attack behavior.

Evidence

dist/bin.mjs

Decision evidence

public snapshot

AI called this Suspicious at 86.0% confidence as Dangerous Capability with low false-positive risk.

Evidence for warning

The package exposes a write-capable memory tool that can target AGENTS.md.
The handler requires a thread capability and only accepts allowlisted memory filenames.
The handler resolves the agent configuration directory and atomically appends caller-supplied text.
The package metadata exposes a CLI entrypoint and contains no npm lifecycle hook.

Evidence against

The configuration mutation is limited to named memory files and is capability-gated.
No install-time hook or confirmed covert credential export was found.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

ManifestNo manifest risk signals triggered.

scanned 495 file(s), 16.9 MB of source, external domains: 127.0.0.1, api.meta.ai, asset.invalid, base-ui.com, chevrotain.io, cli.github.com, en.wikipedia.org, github.com, gitlab.com, langium.org, p4.chat, p4.codes, react.dev, registry.npmjs.org, www.w3.org

Source & flagged code

22 flagged

dist/bin.mjsView file

13import * as NodeOS from "node:os"; L14: import * as NodeNet from "node:net"; L15: import * as Data from "effect/Data"; ... L22: import { isAbsolute } from "node:path"; L23: import * as NodeChildProcess from "node:child_process"; L24: import { spawn } from "node:child_process"; ... L269: //#endregion L270: //#region package.json L271: var version$1 = "0.6.18"; ... L404: /** L405: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L406: * on Windows). Node joins the command and arguments with spaces and hands the

Critical

Sensitive Archive Exfiltration

Source archives sensitive local configuration and publishes encoded chunks through an authenticated package-registry request.

dist/bin.mjsView on unpkg · L13

Critical

Credential Exfiltration

Source appears to send environment or credential material to an external endpoint.

dist/bin.mjsView on unpkg · L13

13Trigger-reachable chain: manifest.bin -> dist/bin.mjs L13: import * as NodeOS from "node:os"; L14: import * as NodeNet from "node:net"; L15: import * as Data from "effect/Data"; ... L22: import { isAbsolute } from "node:path"; L23: import * as NodeChildProcess from "node:child_process"; L24: import { spawn } from "node:child_process"; ... L269: //#endregion L270: //#region package.json L271: var version$1 = "0.6.18"; ... L404: /** L405: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L406: * on Windows). Node joins the command and arguments with spaces and hands the

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

dist/bin.mjsView on unpkg · L13

22import { isAbsolute } from "node:path"; L23: import * as NodeChildProcess from "node:child_process"; L24: import { spawn } from "node:child_process";

High

Child Process

Package source references child process execution.

dist/bin.mjsView on unpkg · L22

•Manifest-reachable source captures an API credential, sends it to a fixed unofficial gateway, and persists that redirection in agent or shell configuration. dist/bin.mjs: import * as NodeReadline from "node:readline"; }).pipe(Effect.flatMap((encoded) => fs.writeFileString(cachePath, encoded)), Effect.ignore); var EnvironmentAuthorizationError = class extends Schema$1.TaggedErrorClass()("EnvironmentAuthorizationError", { baseUrl: Schema$1.String authorization: Schema$1.optionalKey(Schema$1.String), httpBaseUrl: TrimmedNonEmptyString, wsBaseUrl: TrimmedNonEmptyString, httpBaseUrl: Schema$1.NullOr(Schema$1.String),

High

Credential Redirect Persistence

Manifest-reachable source sends a prompted API credential to a fixed unofficial gateway and persists the redirection.

dist/bin.mjsView on unpkg

High

Command Output Exfiltration

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

dist/bin.mjsView on unpkg · L13

22import { isAbsolute } from "node:path"; L23: import * as NodeChildProcess from "node:child_process"; L24: import { spawn } from "node:child_process"; ... L1584: name: TrimmedNonEmptyString, L1585: baseUrl: Schema$1.String L1586: }); ... L51267: const dir = path.join(os.homedir(), '.p4', 'device', 'tools', name, version); L51268: try { return file(path.join(dir, 'node_modules', name, entry)) && fs.readFileSync(path.join(dir, '.install-complete'), 'utf8').trim() === version; } catch { return false; } L51269: };

High

Remote Agent Bridge

Source exposes local file and command tools to a remote model endpoint.

dist/bin.mjsView on unpkg · L22

13Trigger-reachable credential exfiltration chain: manifest.bin -> dist/bin.mjs L13: import * as NodeOS from "node:os"; L14: import * as NodeNet from "node:net"; L15: import * as Data from "effect/Data"; ... L22: import { isAbsolute } from "node:path"; L23: import * as NodeChildProcess from "node:child_process"; L24: import { spawn } from "node:child_process"; ... L269: //#endregion L270: //#region package.json L271: var version$1 = "0.6.18"; ... L404: /** L405: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L406: * on Windows). Node joins the command and arguments with spaces and hands the

High

Trigger Reachable Credential Exfiltration

A manifest entrypoint or package-local install chain reaches credential exfiltration behavior.

dist/bin.mjsView on unpkg · L13

•stage = ast_semantic_analysis; reason = ast_path_work_budget_exceeded; limitedFiles = 8

High

Semantic Analysis Limited

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

dist/bin.mjsView on unpkg

•path = dist/bin.mjs kind = oversized_source_file sizeBytes = 6996263 magicHex = [redacted]

Medium

Oversized Source File

Package contains source files above the normal full-analysis size ceiling.

dist/bin.mjsView on unpkg

•path = dist/bin.mjs kind = oversized_cli_entrypoint sizeBytes = 6996263 magicHex = [redacted]

Medium

Oversized Cli Entrypoint

Package contains an oversized executable-looking CLI entrypoint.

dist/bin.mjsView on unpkg

dist/client/assets/mdx-host-ykYobBl4.jsView file

Lines 1-4javascript

1const __vite__mapDeps=(i,m=__vite__mapDeps,d=(m.f||(m.f=["assets/Diagram-CP713Hf0.js","assets/rolldown-runtime-QTnfLwEv.js","assets/preload-helper-CEhsl8MR.js","assets/compiler-runtime-CLAvuQ-D.js"])))=>i.

dist/resource-monitor/darwin-x64/p4-resource-monitorView file

•path = dist/resource-monitor/darwin-x64/p4-resource-monitor kind = native_binary sizeBytes = 575344 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

dist/resource-monitor/darwin-x64/p4-resource-monitorView on unpkg

dist/NodePtyAdapter-BQAnH2v0.mjsView file

•matchType = normalized_sha256 matchedPackage = @p4code/cli@0.4.12 matchedPath = dist/NodePtyAdapter-BQAnH2v0.mjs matchedIdentity = npm:QHA0Y29kZS9jbGk:0.4.12 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High