Loading npm security reports…

sdd-flow-kit: AI-agent control-surface risk | LPM Firewall

registry / sdd-flow-kit / 1.7.43

sdd-flow-kit@1.7.43

Cross-agent SDD automated development workflow kit with PRD layered architecture, task splitting, context compression, and pending confirmations.

AI Security Review

scanned 1d ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. Installing the package automatically changes the consuming project’s AI-agent control surfaces. It writes workflow skills for four agents and grants Claude Code a command allowlist without an explicit setup command.

Static reason

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

Trigger

npm postinstall during package installation.

Impact

A dependency installation can persist instructions across Cursor, Claude Code, Codex, and OpenClaw, while reducing Claude Code command confirmations.

Mechanism

Automatic cross-agent skill installation and Claude Code permission allowlist mutation.

Policy narrative

The package’s postinstall hook resolves the consuming project and invokes setup with confirmation disabled. Setup writes skills and trigger instructions into four different AI-agent directories, then merges a Claude Code permission allowlist that permits package managers, Node, file changes, and chmod. This is an unconsented install-time mutation of foreign AI-agent control surfaces, so a normal dependency installation changes future agent behavior and approval boundaries.

Rationale

Direct inspection confirms unconsented postinstall mutation of broad, foreign AI-agent control surfaces. This meets the blocking policy even though no network exfiltration was found in the install path.

Evidence

package.jsondist/postinstall.jsdist/steps/setupProject.jsdist/core/claudeCodePermissions.js.cursor/skills/sdd-flow-kit/SKILL.md.claude/skills/sdd-flow-kit/SKILL.md

Source & flagged code

12 flagged · loading source

package.jsonView file

•scripts.postinstall = node dist/postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node dist/postinstall.js

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

dist/core/agentRemediateInvoke.jsView file

9exports.agentRemediateHint = agentRemediateHint; L10: const child_process_1 = require("child_process"); L11: const path_1 = __importDefault(require("path"));

High

Child Process

Package source references child process execution.

dist/core/agentRemediateInvoke.jsView on unpkg · L9

dist/core/prdInventoryGate.jsView file

22*/ L23: const path_1 = __importDefault(require("path")); L24: const apiFieldCoverage_1 = require("./apiFieldCoverage");

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/core/prdInventoryGate.jsView on unpkg · L22

dist/postinstall.jsView file

26Install-time code directly mutates a foreign AI-agent control surface: L66: return "cursor"; L67: if (await exists(".claude")) L68: return "claude-code"; L69: if (await exists(".codex")) L70: return "codex"; Write operation from dist/core/fs.js: L26: await promises_1.default.mkdir(path_1.default.dirname(filePath), { recursive: true }); L27: await promises_1.default.writeFile(filePath, content, "utf8"); L28: } Foreign user/project scope from dist/postinstall.js: L66: return "cursor"; L67: if (await exists(".claude")) L68: return "claude-code"; L69: if (await exists(".codex")) L70: return "codex";

Critical

Ai Agent Control Hijack

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

dist/postinstall.jsView on unpkg · L26

dist/core/opsxDelivery.jsView file

187const openspecOk = hasCommand("openspec") || L188: (0, child_process_1.spawnSync)("npx", ["openspec", "--version"], { stdio: "ignore", cwd: root }).status === 0; L189: checks.push({

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

dist/core/opsxDelivery.jsView on unpkg · L187

scripts/install-git-hooks.shView file

•path = scripts/install-git-hooks.sh kind = build_helper sizeBytes = 790 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

scripts/install-git-hooks.shView on unpkg

dist/core/playwrightEnsure.jsView file

•matchType = normalized_sha256 matchedPackage = sdd-flow-kit@1.7.40 matchedPath = dist/core/playwrightEnsure.js matchedIdentity = npm:c2RkLWZsb3cta2l0:1.7.40 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/playwrightEnsure.jsView on unpkg

dist/core/apiLiveProbe.jsView file

•matchType = normalized_sha256 matchedPackage = sdd-flow-kit@1.7.40 matchedPath = dist/core/apiLiveProbe.js matchedIdentity = npm:c2RkLWZsb3cta2l0:1.7.40 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/apiLiveProbe.jsView on unpkg

dist/core/devPort.jsView file

•matchType = normalized_sha256 matchedPackage = sdd-flow-kit@1.7.40 matchedPath = dist/core/devPort.js matchedIdentity = npm:c2RkLWZsb3cta2l0:1.7.40 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/devPort.jsView on unpkg

dist/core/validateReviewSubagent.jsView file

•matchType = normalized_sha256 matchedPackage = sdd-flow-kit@1.7.40 matchedPath = [redacted].js matchedIdentity = npm:c2RkLWZsb3cta2l0:1.7.40 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/validateReviewSubagent.jsView on unpkg

dist/core/acSourceTrace.jsView file

•matchType = normalized_sha256 matchedPackage = sdd-flow-kit@1.7.40 matchedPath = dist/core/acSourceTrace.js matchedIdentity = npm:c2RkLWZsb3cta2l0:1.7.40 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/acSourceTrace.jsView on unpkg

Source & flagged code

12 flagged

package.jsonView file

Lines 7-47json

7 "engines": {

8 "node": ">=14.16.0"

9 },

10 "type": "commonjs",

11 "main": "dist/index.js",

12 "files": [

13 "dist",

14 "src/templates",

15 "src/tests/fixtures",

16 "scripts",

17 "README.md",

18 "docs"

19 ],

20 "bin": {

21 "sdd-flow-kit": "dist/cli.js"

22 },

23 "scripts": {

24 "build": "tsc -p tsconfig.json",

25 "start": "node dist/cli.js",

26 "prepublishOnly": "npm run build",

27 "postinstall": "node dist/postinstall.js",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L27

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg · L27

28 "test": "npm run build && node dist/tests/acMatrix.test.js && node dist/tests/proposeArtifacts.test.js && node dist/tests/analysisInputScan.test.js && node dist/tests/backendSkillDetector.test.js && node dist/tests/doc03Quality.test.js && node dist/tests/runGuard.test.js && node dist/tests/techDocQuality.test.js && node dist/tests/uiInteractionGate.test.js && node dist/tests/demoProposalConsistency.test.js && node dist/tests/acLayerCoverageGate.test.js && node dist/tests/acSourceTrace.test.js && node dist/tests/acInteractionGapGate.test.js && node dist/tests/prdInventoryGate.test.js && nod ...

29 },

30 "devDependencies": {

31 "@mermaid-js/mermaid-cli": "10.9.1",

32 "@types/node": "^20.14.10",

33 "puppeteer": "19.11.1",

34 "typescript": "^5.6.3"

35 },

36 "pnpm": {

37 "onlyBuiltDependencies": [

38 "sdd-flow-kit"

39 ]

40 },

41 "keywords": [

42 "sdd",

43 "software-design-description",

44 "workflow",

45 "automation",

46 "ai-agent",

47 "cursor",

Long lines were clipped for display.

dist/core/agentRemediateInvoke.jsView file

Lines 1-29javascript

1"use strict";

2var __importDefault = (this && this.__importDefault) || function (mod) {

3 return (mod && mod.__esModule) ? mod :

dist/core/prdInventoryGate.jsView file

Lines 2-42javascript

2var __importDefault = (this && this.__importDefault) || function (mod) {

3 return (mod && mod.__esModule) ? mod : { "default": mod };

dist/postinstall.jsView file

Lines 6-46javascript

6 desc = { enumerable: true, get: function() { return m[k]; } };

7 }

8 Object.defineProperty(o, k2, desc);

9}) : (function(o, m, k, k2

dist/core/opsxDelivery.jsView file

Lines 167-207javascript

167 repairedScripts,

168 checks,

169 plannedActions,

170 };

171}

172async function collectDeliverySetupChecks(installRoot) {

173 var _a, _b, _c, _d, _e, _f, _g;

174

scripts/install-git-hooks.shView file

•path = scripts/install-git-hooks.sh kind = build_helper sizeBytes = 790 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

scripts/install-git-hooks.shView on unpkg

dist/core/playwrightEnsure.jsView file

•matchType = normalized_sha256 matchedPackage = sdd-flow-kit@1.7.40 matchedPath = dist/core/playwrightEnsure.js matchedIdentity = npm:c2RkLWZsb3cta2l0:1.7.40 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/playwrightEnsure.jsView on unpkg

dist/core/apiLiveProbe.jsView file

•matchType = normalized_sha256 matchedPackage = sdd-flow-kit@1.7.40 matchedPath = dist/core/apiLiveProbe.js matchedIdentity = npm:c2RkLWZsb3cta2l0:1.7.40 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/apiLiveProbe.jsView on unpkg

dist/core/devPort.jsView file

•matchType = normalized_sha256 matchedPackage = sdd-flow-kit@1.7.40 matchedPath = dist/core/devPort.js matchedIdentity = npm:c2RkLWZsb3cta2l0:1.7.40 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/devPort.jsView on unpkg

dist/core/validateReviewSubagent.jsView file

•matchType = normalized_sha256 matchedPackage = sdd-flow-kit@1.7.40 matchedPath = [redacted].js matchedIdentity = npm:c2RkLWZsb3cta2l0:1.7.40 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/validateReviewSubagent.jsView on unpkg

dist/core/acSourceTrace.jsView file

•matchType = normalized_sha256 matchedPackage = sdd-flow-kit@1.7.40 matchedPath = dist/core/acSourceTrace.js matchedIdentity = npm:c2RkLWZsb3cta2l0:1.7.40 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/acSourceTrace.jsView on unpkg