registry / Credential exfiltration / @dev-mainsequence/command-center-sdk / 0.5.6

@dev-mainsequence/command-center-sdk@0.5.6

The framework-neutral SDK for building Command Center-compatible resource applications, navigation, layouts, themes, feedback, and embeds.

AI Security Review

scanned 27d ago · by lpm-firewall-ai

The unrestricted environment-selected destination receives an existing environment credential during an automatic lifecycle hook. This warrants a warning for conditional credential exposure, but the inspected source does not prove theft, a package-controlled endpoint, or destructive behavior.

Static reason

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

Trigger

npm postinstall with MCP configuration present.

Impact

A token may be exposed to an unrestricted configured endpoint, and returned content can alter the consumer project's agent skills. No confirmed attack endpoint or payload was identified.

Mechanism

The postinstall handler invokes skill installation, reads the MCP URL and access token from environment variables, sends a bearer-authenticated request, and writes catalog content under .agents/skills.

AI rationale

Evidence

.agents/skills/command-center.agents/skills/mainsequence

Decision evidence

public snapshot

AI called this Suspicious at 91.0% confidence as Dangerous Capability with low false-positive risk.

Evidence for warning

The package declares an automatic postinstall entrypoint.
Postinstall installs agent skills into the consumer project and can continue to MCP synchronization.
The installer targets the consumer repository’s .agents skills directory.
MCP configuration accepts its URL from environment variables and reads a service access token from the environment.
The MCP request sends that token as a bearer authorization header to the configured URL, then installs returned skills.

Evidence against

MCP synchronization is skipped when required configuration is absent or when its disabling environment flag is set.
The skill installers use dedicated namespaced .agents directories and include path-safety checks.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

Source & flagged code

6 flagged

package.jsonView file

Lines 111-151json

111 "./theme/styles.css": "./theme/styles.css",

112 "./theme/tailwind.css": "./theme/tailwind.css",

113 "./theme/utilities.css": "./theme/utilities.css",

114 "./tailwind.css": "./theme/tailwind.css",

115 "./styles.css": "./styles.css",

116 "./package.json": "./package.json"

117 },

118 "publishConfig": {

119 "access": "public",

120 "registry": "https://registry.npmjs.org/"

121 },

122 "scripts": {

123 "build": "node ../scripts/clean-sdk-dist.mjs && tsc -p tsconfig.json",

124 "size:check": "node ../scripts/check-package-size.mjs dist/index.js 10000 && node ../scripts/check-package-size.mjs dist/feedback/components.js 25000 && node ../scripts/check-package-size.mjs dist/controls/components.js 20000 && node ../scripts/check-package-size.mjs dist/layout/components.js 20000 && node ../scripts/check-package-size.mjs dist/layout/testing/index.js 30000 && node ../scripts/check-package-size.mjs dist/navigation/testing/index.js 12000 && node ../scripts/check-package-size.mjs dist/views/ResourceListPage.js 50000 && node ../scripts/check-package-size.mjs dist/views/Resour ...

125 "check": "npm run theme:audit && tsc -p tsconfig.json --noEmit && tsc -p tests/types/tsconfig.json",

126 "theme:audit": "node cli/command-center-sdk.mjs theme audit --path styles.css",

127 "test": "vitest run && node --test tests/cli/*.node.mjs",

128 "test:browser": "npm run build && playwright test --config playwright.config.ts",

129 "test:package-smoke": "node tests/cli/packed-consumer-smoke.mjs",

130 "prepack": "npm run build",

131 "postinstall": "node ./cli/postinstall.mjs"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L131

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L131

132 },

133 "peerDependencies": {

134 "react": ">=18 <20",

135 "react-dom": ">=18 <20"

136 },

137 "dependencies": {

138 "lucide-react": "^0.500.0"

139 },

140 "devDependencies": {

141 "@playwright/test": "^1.62.1",

142 "@types/react": "^19.0.0",

143 "@types/react-dom": "^19.0.0",

144 "ajv": "^8.20.0",

145 "jsdom": "^29.1.0",

146 "react": "^19.0.0",

147 "react-dom": "^19.0.0",

148 "typescript": "^5.8.0",

149 "vitest": "^4.1.5"

150 }

151}

Long lines were clipped for display.

cli/install-agent-skills.mjsView file

Lines 1-21javascript

1import { cp, lstat, mkdir, mkdtemp, readdir, readFile, realpath, rename, rm, writeFile } from "node:fs/promises";

2import { basename, dirname, isAbsolute, join, relative, resolve, sep } from "node:path";

Critical

Ai Agent Control Hijack

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

cli/install-agent-skills.mjsView on unpkg · L1

3import { fileURLToPath } from

styles.cssView file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 7

High

Semantic Analysis Limited

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

styles.cssView on unpkg

cli/application-sdk-maintenance.mjsView file

•matchType = normalized_sha256 matchedPackage = @dev-mainsequence/command-center-sdk@0.4.1 matchedPath = cli/application-sdk-maintenance.mjs matchedIdentity = npm:[redacted]:0.4.1 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.

cli/application-sdk-maintenance.mjsView on unpkg

cli/code-repository-sync-local-ops.mjsView file

•matchType = normalized_sha256 matchedPackage = @dev-mainsequence/command-center-sdk@0.4.1 matchedPath = cli/code-repository-sync-local-ops.mjs matchedIdentity = npm:[redacted]:0.4.1 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.

cli/code-repository-sync-local-ops.mjsView on unpkg

Source & flagged code

6 flagged · loading source

package.jsonView file

•scripts.postinstall = node ./cli/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node ./cli/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

cli/install-agent-skills.mjsView file

1Install-time code directly mutates a foreign AI-agent control surface: L377: resolvedProjectDir, L378: ".agents", L379: "skills", ... L428: const skillsParent = dirname(destinationRoot); L429: await mkdir(skillsParent, { recursive: true }); L430: const stageRoot = await mkdtemp(join(skillsParent, ".command-center-stage-")); ... L439: const staged = join(stageRoot, ...item.relativePath.split("/")); L440: await mkdir(dirname(staged), { recursive: true }); L441: await cp(item.source, staged, { L442: recursive: true, ... L448: L449: await mkdir(destinationRoot, { recursive: true }); Write operation from cli/install-agent-skills.mjs: L377: resolvedProjectDir, L378: ".agents", L379: "skills", ... L428: const skillsParent = dirname(destinationRoot); L429: await mkdir(skillsParent, { recursive: t

Findings

1 Critical4 High4 Medium4 Low

CriticalAi Agent Control Hijackcli/install-agent-skills.mjs

HighInstall Time Lifecycle Scriptspackage.json

HighSemantic Analysis Limitedstyles.css

HighKnown Malware Source Similaritycli/application-sdk-maintenance.mjs

HighKnown Malware Source Similaritycli/code-repository-sync-local-ops.mjs

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to @dev-mainsequence/command-center-sdk@0.5.6.

See all versions of @dev-mainsequence/command-center-sdk for other recorded verdicts.

Review the evidence and your use of @dev-mainsequence/command-center-sdk@0.5.6 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-09-26 00:21:31.499Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.