registry / Credential exfiltration / @dev-mainsequence/command-center-sdk / 0.5.0

@dev-mainsequence/command-center-sdk@0.5.0

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

AI Security Review

scanned 1mo ago · by lpm-firewall-ai

The automatic lifecycle combines an unrestricted environment-selected destination with forwarding of an existing access token. This establishes conditional credential exposure, not proven malware intent or a confirmed covert attack.

Static reason

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

Trigger

npm postinstall runs with an MCP URL and MAINSEQUENCE_ACCESS_TOKEN available.

Impact

A token may be exposed to an unrestricted configured endpoint, and that endpoint can supply agent skill files to the consumer repository.

Mechanism

The lifecycle resolves the endpoint from environment variables, sends a Bearer token in MCP requests, and writes returned skills beneath the consumer repository's .agents directory.

AI rationale

Evidence

cli/postinstall.mjscli/mcp-platform-skills.mjscli/install-mcp-skills.mjs.agents/skills/command-center.agents/skills/mainsequence

Decision evidence

public snapshot

AI called this Suspicious at 93.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The package declares an automatic postinstall entrypoint.
Postinstall copies agent skills and, when environment configuration is present, fetches an MCP catalog.
The MCP URL is taken from environment configuration without a destination allowlist, while the access token is taken from MAINSEQUENCE_ACCESS_TOKEN.
The MCP client sends that token as a Bearer authorization header to the configured URL.
Fetched MCP skill content is written into the consumer repository's agent-skills directory.

Evidence against

The MCP synchronization is skipped when its URL or token is absent and errors do not block installation.
The code validates paths and uses a dedicated agent-skill namespace.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystem

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 95 file(s), 536 KB of source, external domains: command-center.invalid

Source & flagged code

7 flagged

package.jsonView file

Lines 107-147json

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

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

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

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

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

112 "./package.json": "./package.json"

113 },

114 "publishConfig": {

115 "access": "public",

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

117 },

118 "scripts": {

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

120 "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 ...

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

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

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

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

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

126 "prepack": "npm run build",

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

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L127

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L127

128 },

129 "peerDependencies": {

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

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

132 },

133 "dependencies": {

134 "lucide-react": "^0.500.0"

135 },

136 "devDependencies": {

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

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

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

140 "ajv": "^8.20.0",

141 "jsdom": "^29.1.0",

142 "react": "^19.0.0",

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

144 "typescript": "^5.8.0",

145 "vitest": "^4.1.5"

146 }

147}

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

dist/embed/static-site.jsView file

•matchType = normalized_sha256 matchedPackage = @dev-mainsequence/command-center-sdk@0.4.1 matchedPath = dist/embed/static-site.js 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.

dist/embed/static-site.jsView on unpkg

Source & flagged code

7 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 Critical5 High3 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

HighKnown Malware Source Similaritydist/embed/static-site.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

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@0.5.0.

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@0.5.0 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: 2026-09-22 20:05:39.402Z (UTC).

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