registry / AI-agent capability abuse / @p4code/cli / 0.6.0

@p4code/cli@0.6.0

P4 Code coding agent server and command-line client

AI Security Review

scanned 23d ago · by lpm-firewall-ai

Source proves runtime tools that mutate user-scope agent instructions behind authentication and capability checks. Under the supplied agent policy, this warrants a behavior-specific warning rather than a publication block.

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

Run the CLI server and invoke memory_append or asset_compress through an authorized MCP session.

Impact

Tool invocations can change instructions used by later agent sessions; compression includes validation and backup safeguards.

Mechanism

The handlers check the threads capability, resolve agent configuration destinations, and write supplied content. Issued sessions receive this capability by default.

AI rationale

Evidence

dist/bin.mjsCLAUDE.mdAGENTS.md.claude

Decision evidence

public snapshot

AI called this Suspicious at 90.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The CLI implements an MCP tool that appends caller-supplied text to user-scope agent memory.
Memory destinations resolve through configured Claude paths, defaulting to .claude under the user's home directory.
A second tool overwrites agent assets with compressed content after validation and backup.
These operations require the threads capability, which issued MCP sessions receive by default.
The tools are registered through the authenticated MCP server during CLI operation.

Evidence against

package.json contains no npm lifecycle hooks or runtime self-dependency.
Memory filenames are allowlisted; asset compression checks destination directories, validates content preservation, and verifies a backup.
The inspected behavior establishes a guarded agent configuration capability, without proving malicious intent or an installation-time attack.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystem

Source & flagged code

23 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"; ... L266: //#endregion L267: //#region package.json L268: var version$1 = "0.6.0"; ... L401: /** L402: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L403: * 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"; ... L266: //#endregion L267: //#region package.json L268: var version$1 = "0.6.0"; ... L401: /** L402: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L403: * 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

•matchType = previous_version_dangerous_delta matchedPackage = @p4code/cli@0.6.26 matchedIdentity = npm:QHA0Y29kZS9jbGk:0.6.26 similarity = 0.967 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/bin.mjsView on unpkg

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"; ... L1851: name: TrimmedNonEmptyString, L1852: baseUrl: Schema$1.String L1853: }); ... L49497: const dir = path.join(os.homedir(), '.p4', 'device', 'tools', name, version); L49498: try { return file(path.join(dir, 'node_modules', name, entry)) && fs.readFileSync(path.join(dir, '.install-complete'), 'utf8').trim() === version; } catch { return false; } L49499: };

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"; ... L266: //#endregion L267: //#region package.json L268: var version$1 = "0.6.0"; ... L401: /** L402: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L403: * 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 = 6735672 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 = 6735672 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