registry / @pimmesz/afterburner / 2.17.0

@pimmesz/afterburner@2.17.0

Convert idle AI-subscription quota (Claude or Codex) into shippable engineering work: budget-aware trigger, bounded task selection, PR-only output.

AI Security Review

scanned 7d ago · by lpm-firewall-ai

No confirmed malicious attack surface was found. High-risk primitives are part of a user-invoked AI quota automation CLI that creates isolated worktrees, runs configured agents, and optionally notifies or updates when commanded.

Static reason

High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source

Trigger

User runs afterburner CLI commands such as auth, run-once, watch, schedule, notify, review, or update.

Impact

Can modify configured repositories and local Afterburner/Claude scheduler/config files by design, but no hidden install-time execution or unconsented exfiltration was confirmed.

Mechanism

User-invoked AI-agent automation and notification workflow

Rationale

Static inspection confirms the scanner-highlighted shell, network, token, and package-manager behavior is reachable only through explicit CLI workflows and is aligned with the package's stated purpose. There is no lifecycle execution, hidden import-time payload, credential harvesting, or command-output exfiltration beyond configured/user-invoked notification and repository automation paths.

Evidence

package.jsondist/cli/index.jsdist/core/index.jsdist/chunk-WJGGV2YJ.js

Network endpoints3

ntfy.shapi.telegram.orgregistry.npmjs.org

Decision evidence

public snapshot

AI called this Clean at 86.0% confidence as Benign with low false-positive risk.

Evidence for block

dist/cli/index.js imports child_process and exposes commands that spawn claude/codex/git/gh and update via package manager when user invokes them.
dist/chunk-WJGGV2YJ.js can write Claude config trust state for temporary worktrees and can commit/push/merge generated branches under configured policies.
dist/chunk-WJGGV2YJ.js sends optional notifications to ntfy.sh or api.telegram.org with env-provided tokens.

Evidence against

package.json has no install/postinstall/preinstall lifecycle scripts; bin execution is user-invoked.
dist/cli/index.js defaultSpawnSetupToken runs `claude setup-token`, redacts stdout, extracts token, and stores it locally via writeOAuthToken rather than sending command output externally.
Network calls are package-aligned: npm update checks, Telegram/ntfy notifications, and configured repo/PR operations.
Agent prompts explicitly label task, issue, rejected, and merged text as untrusted and pass it through env vars rather than shell interpolation.
dist/core/index.js only re-exports library APIs and has no obvious import-time execution beyond module loading.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 4 file(s), 419 KB of source, external domains: api.telegram.org, crontab.guru, git-scm.com, github.com, nodejs.org, ntfy.sh, registry.npmjs.org, www.apple.com

Source & flagged code

8 flagged

dist/cli/index.jsView file

Lines 50-90javascript

50 readUsageCache,

51 reapOrphanWorktrees,

52 runInteractiveTurn,

53 runOnce,

54 sanitizeCodexEnv,

55 sanitizeSpawnEnv,

56 sanitizeTitle,

57 scheduleArmedState,

58 scheduleArtifactPaths,

59 scheduleStopCommands,

60 shouldIgnite,

61 spawnAgentProcess,

62 startWatch,

63 withGoalPlanner,

64 writeOAuthToken,

65 writeUsageCache

66} from "../chunk-WJGGV2YJ.js";

68// src/cli/index.ts

69import { Command } from "commander";

71// package.json

72var package_default = {

Critical

Command Output Exfiltration

Source executes local commands and sends command output to an external endpoint.

dist/cli/index.jsView on unpkg · L70

Critical

Trigger Reachable Dangerous Capability

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

dist/cli/index.jsView on unpkg · L70

Medium

Install Persistence

Source writes installer persistence such as shell profile or service configuration.

dist/cli/index.jsView on unpkg · L70

73 name: "@pimmesz/afterburner",

74 version: "2.17.0",

75 description: "Convert idle AI-subscription quota (Claude or Codex) into shippable engineering work: budget-aware trigger, bounded task selection, PR-only output.",

76 license: "Apache-2.0",

77 publishConfig: {

78 access: "public"

79 },

80 type: "module",

81 packageManager: "pnpm@11.5.3",

82 engines: {

83 node: ">=22.12"

84 },

85 bin: {

86 afterburner: "dist/cli/index.js",

87 abr: "dist/cli/index.js"

88 },

89 main: "./dist/core/index.js",

90 types: "./dist/core/index.d.ts",

Lines 306-346javascript

306 if (!fancy || process.env.CI) {

307 console.log(banner());

308 return;

309 }

310 const jet = `${emoji.jet} `;

311 for (let pos

Lines 2923-2963javascript

2923 if (process.env[key]) {

2924 results2.push({

2925 name: "env",

2926 ok: false,

2927 detail: `${key} is set: with \`codex exec\` it bills the metered OpenAI API instead of spending subscription quota`,

2928 fix: `unset ${key} (Afterburner also strips it from child processes as a defense, but fix the environment).`

2929 });

2930 }

Lines 3064-3104javascript

3064 const has = deps.has ?? commandExistsSync;

3065 if (platform === "darwin") {

3066 return has("terminal-notifier") ? {

3067 name: "notify",

3068 ok: true,

3069 detail: "desktop banners via terminal-notifier (clickable PR links)"

dist/chunk-WJGGV2YJ.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @pimmesz/afterburner@2.16.0 matchedIdentity = npm:QHBpbW1lc3ovYWZ0ZXJidXJuZXI:2.16.0 similarity = 0.750 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.

dist/chunk-WJGGV2YJ.jsView on unpkg

Source & flagged code

8 flagged · loading source

dist/cli/index.jsView file

70L71: // package.json L72: var package_default = { ... L117: type: "git", L118: url: "git+https://github.com/pimmesz/afterburner.git" L119: }, ... L156: // src/cli/ui.ts L157: var noColor = !!process.env.NO_COLOR || process.env.TERM === "dumb"; L158: var fancy = process.stdout.isTTY === true && !noColor; L159: var fancyErr = process.stderr.isTTY === true && !noColor; L160: var canAnimate = fancyErr && !process.env.CI; L161: var paint = (enabled) => (open2, close) => (s) => enabled ? `\x1B[${open2}m${s}\x1B[${close}m` : s;

Critical

Command Output Exfiltration

Source executes local commands and sends command output to an external endpoint.

dist/cli/index.jsView on unpkg · L70

70Trigger-reachable chain: manifest.bin -> dist/cli/index.js L70: L71: // package.json L72: var package_default = { ... L117: type: "git", L118: url: "git+https://github.com/pimmesz/afterburner.git" L119: }, ... L156: // src/cli/ui.ts L157: var noColor = !!process.env.NO_COLOR || process.env.TERM === "dumb"; L158: var fancy = process.stdout.isTTY === true && !noColor; L159: var fancyErr = process.stderr.isTTY === true && !noColor; L160: var canAnimate = fancyErr && !process.env.CI; L161: var paint = (enabled) => (open2, close) => (s) => enabled ? `\x1B[${open2}m${s}\x1B[${close}m` : s;

Critical

Trigger Reachable Dangerous Capability

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

dist/cli/index.jsView on unpkg · L70

326// src/cli/commands/auth.ts L327: import { spawn } from "child_process"; L328: import { createInterface } from "readline";

High

Child Process

Package source references child process execution.

dist/cli/index.jsView on unpkg · L326

3084if (platform === "win32") { L3085: return { name: "notify", ok: true, detail: "desktop banners via PowerShell toast" }; L3086: }

High

Shell

Package source references shell execution.

dist/cli/index.jsView on unpkg · L3084

3084if (platform === "win32") { L3085: return { name: "notify", ok: true, detail: "desktop banners via PowerShell toast" }; L3086: } ... L3094: function checkNtfy(config) { L3095: const hasToken = !!process.env.AFTERBURNER_NTFY_TOKEN; L3096: const server = config.notify.ntfy.server; L3097: if (hasToken && !server.startsWith("https://")) { L3098: return {

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

dist/cli/index.jsView on unpkg · L3084

2943const results = []; L2944: const version = spawnSync("claude", ["--version"], { encoding: "utf8" }); L2945: if (version.status !== 0) { ... L2949: detail: "claude-code engine selected but the `claude` CLI is not on PATH", L2950: fix: "Install Claude Code: `npm install -g @anthropic-ai/claude-code`, then run `claude /login`." L2951: });

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

dist/cli/index.jsView on unpkg · L2943

Medium

Install Persistence

Source writes installer persistence such as shell profile or service configuration.

dist/cli/index.jsView on unpkg · L70

dist/chunk-WJGGV2YJ.jsView file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version.

dist/chunk-WJGGV2YJ.jsView on unpkg

Findings

3 Critical4 High4 Medium4 Low

CriticalCommand Output Exfiltrationdist/cli/index.js

CriticalTrigger Reachable Dangerous Capabilitydist/cli/index.js

CriticalPrevious Version Dangerous Deltadist/chunk-WJGGV2YJ.js

HighChild Processdist/cli/index.js

HighShelldist/cli/index.js

HighSame File Env Network Executiondist/cli/index.js

HighRuntime Package Installdist/cli/index.js

MediumNetwork

MediumEnvironment Vars

MediumInstall Persistencedist/cli/index.js

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Source & flagged code

8 flagged

dist/cli/index.jsView file

Lines 50-90javascript

50 readUsageCache,

51 reapOrphanWorktrees,

52 runInteractiveTurn,

53 runOnce,

54 sanitizeCodexEnv,

55 sanitizeSpawnEnv,

56 sanitizeTitle,

57 scheduleArmedState,

58 scheduleArtifactPaths,

59 scheduleStopCommands,

60 shouldIgnite,

61 spawnAgentProcess,

62 startWatch,

63 withGoalPlanner,

64 writeOAuthToken,

65 writeUsageCache

66} from "../chunk-WJGGV2YJ.js";

68// src/cli/index.ts

69import { Command } from "commander";

71// package.json

72var package_default = {

Critical

Command Output Exfiltration

Source executes local commands and sends command output to an external endpoint.

dist/cli/index.jsView on unpkg · L70

Critical

Trigger Reachable Dangerous Capability

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

dist/cli/index.jsView on unpkg · L70

Medium

Install Persistence

Source writes installer persistence such as shell profile or service configuration.

dist/cli/index.jsView on unpkg · L70

73 name: "@pimmesz/afterburner",

74 version: "2.17.0",

75 description: "Convert idle AI-subscription quota (Claude or Codex) into shippable engineering work: budget-aware trigger, bounded task selection, PR-only output.",

76 license: "Apache-2.0",

77 publishConfig: {

78 access: "public"

79 },

80 type: "module",

81 packageManager: "pnpm@11.5.3",

82 engines: {

83 node: ">=22.12"

84 },

85 bin: {

86 afterburner: "dist/cli/index.js",

87 abr: "dist/cli/index.js"

88 },

89 main: "./dist/core/index.js",

90 types: "./dist/core/index.d.ts",

Lines 306-346javascript

306 if (!fancy || process.env.CI) {

307 console.log(banner());

308 return;

309 }

310 const jet = `${emoji.jet} `;

311 for (let pos

Lines 2923-2963javascript

2923 if (process.env[key]) {

2924 results2.push({

2925 name: "env",

2926 ok: false,

2927 detail: `${key} is set: with \`codex exec\` it bills the metered OpenAI API instead of spending subscription quota`,

2928 fix: `unset ${key} (Afterburner also strips it from child processes as a defense, but fix the environment).`

2929 });

2930 }

Lines 3064-3104javascript

3064 const has = deps.has ?? commandExistsSync;

3065 if (platform === "darwin") {

3066 return has("terminal-notifier") ? {

3067 name: "notify",

3068 ok: true,

3069 detail: "desktop banners via terminal-notifier (clickable PR links)"

dist/chunk-WJGGV2YJ.jsView file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version.

dist/chunk-WJGGV2YJ.jsView on unpkg