registry / @pimmesz/afterburner / 2.12.0

@pimmesz/afterburner@2.12.0

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 8d ago · by lpm-firewall-ai

No confirmed malicious attack surface was found. The package is a local AI-agent automation CLI whose network, shell, scheduler, and file writes are user-invoked and aligned with its documented purpose.

Static reason

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

Trigger

Explicit CLI commands such as `afterburner run-once`, `auth`, `update`, `statusline install`, `schedule install`, or `skill install`.

Impact

Can modify configured repositories and local Claude/Afterburner config when explicitly enabled; no unconsented install-time/import-time execution or credential exfiltration found.

Mechanism

User-configured local automation spawning git/gh/claude/codex and optional notifications.

Rationale

Static inspection confirms the scary primitives are part of a documented, user-invoked local automation tool and not lifecycle/import-time malware. I found no credential harvesting with exfiltration, hidden persistence, destructive behavior, or unconsented AI-agent control-surface mutation.

Evidence

package.jsondist/cli/index.jsdist/chunk-REVVAUKX.jsdist/core/index.jsREADME.mdafterburner.config.example.tsskill/SKILL.md.env.exampleafterburner.config.mjs.afterburner/backlog.jsonl~/.claude/settings.json~/.claude/skills/afterburner/SKILL.md

Network endpoints4

registry.npmjs.orgntfy.shapi.telegram.orggithub.com

Decision evidence

public snapshot

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

Evidence for block

dist/cli/index.js exposes user-invoked commands that spawn claude/codex/git/gh and can run configured repo setup/verify commands.
dist/cli/index.js update command can run npm/pnpm/yarn/bun global install, but only via explicit `afterburner update`.
dist/cli/index.js statusline/skill/schedule commands write Claude/settings or scheduler artifacts, but are explicit CLI subcommands.

Evidence against

package.json has no install/postinstall lifecycle hooks; bin is the CLI only.
dist/cli/index.js `auth` runs `claude setup-token`, redacts stdout, extracts token, and stores it locally; no source path sends that output to a remote endpoint.
dist/chunk-REVVAUKX.js notifications only send run outcome/title/PR URL to configured ntfy/Telegram endpoints, with HTTPS token guards.
dist/core/index.js only re-exports library APIs; no import-time command execution observed.
README.md and afterburner.config.example.ts document dry-run default, live backend opt-in, PR-only branch behavior, and no telemetry.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 4 file(s), 402 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-REVVAUKX.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: "2.12.0",

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 2690-2730javascript

2690 if (process.env[key]) {

2691 results2.push({

2692 name: "env",

2693 ok: false,

2694 detail: `${key} is set: with \`codex exec\` it bills the metered OpenAI API instead of spending subscription quota`,

2695 fix: `unset ${key} (Afterburner also strips it from child processes as a defense, but fix the environment).`

2696 });

2697 }

Lines 2831-2871javascript

2831 const has = deps.has ?? commandExistsSync;

2832 if (platform === "darwin") {

2833 return has("terminal-notifier") ? {

2834 name: "notify",

2835 ok: true,

2836 detail: "desktop banners via terminal-notifier (clickable PR links)"

•matchType = previous_version_dangerous_delta matchedPackage = @pimmesz/afterburner@2.11.0 matchedIdentity = npm:QHBpbW1lc3ovYWZ0ZXJidXJuZXI:2.11.0 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/cli/index.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

Critical

Previous Version Dangerous Delta

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

dist/cli/index.jsView on unpkg

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

2851if (platform === "win32") { L2852: return { name: "notify", ok: true, detail: "desktop banners via PowerShell toast" }; L2853: }

High

Shell

Package source references shell execution.

dist/cli/index.jsView on unpkg · L2851

2851if (platform === "win32") { L2852: return { name: "notify", ok: true, detail: "desktop banners via PowerShell toast" }; L2853: } ... L2861: function checkNtfy(config) { L2862: const hasToken = !!process.env.AFTERBURNER_NTFY_TOKEN; L2863: const server = config.notify.ntfy.server; L2864: if (hasToken && !server.startsWith("https://")) { L2865: 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 · L2851

2710const results = []; L2711: const version = spawnSync("claude", ["--version"], { encoding: "utf8" }); L2712: if (version.status !== 0) { ... L2716: detail: "claude-code engine selected but the `claude` CLI is not on PATH", L2717: fix: "Install Claude Code: `npm install -g @anthropic-ai/claude-code`, then run `claude /login`." L2718: });

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

dist/cli/index.jsView on unpkg · L2710

Medium

Install Persistence

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

dist/cli/index.jsView on unpkg · L70

Findings

3 Critical4 High4 Medium4 Low

CriticalCommand Output Exfiltrationdist/cli/index.js

CriticalTrigger Reachable Dangerous Capabilitydist/cli/index.js

CriticalPrevious Version Dangerous Deltadist/cli/index.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-REVVAUKX.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: "2.12.0",

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 2690-2730javascript

2690 if (process.env[key]) {

2691 results2.push({

2692 name: "env",

2693 ok: false,

2694 detail: `${key} is set: with \`codex exec\` it bills the metered OpenAI API instead of spending subscription quota`,

2695 fix: `unset ${key} (Afterburner also strips it from child processes as a defense, but fix the environment).`

2696 });

2697 }

Lines 2831-2871javascript

2831 const has = deps.has ?? commandExistsSync;

2832 if (platform === "darwin") {

2833 return has("terminal-notifier") ? {

2834 name: "notify",

2835 ok: true,

2836 detail: "desktop banners via terminal-notifier (clickable PR links)"

Critical

Previous Version Dangerous Delta

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

dist/cli/index.jsView on unpkg