registry / @kryptosai/mcp-observatory / 1.44.0

@kryptosai/mcp-observatory@1.44.0

MCP security scanner and CI gate. Test, secure, and monitor MCP servers with attack simulation, schema drift detection, health scoring, and SARIF before agents depend on them.

AI Security Review

scanned 14d ago · by lpm-firewall-ai

The source confirms a postinstall hook, but its project checks and explicit auto-setup gate constrain its workflow write. The flagged files inspected show package-aligned scanner and reporting behavior, with no concrete attack behavior found.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

Package installation; workflow creation additionally requires the configured opt-in.

Impact

No unconsented attack surface was established from the inspected source.

Mechanism

The hook skips self-installs, CI, and non-MCP projects; configured setup creates a workflow only if the destination does not already exist.

AI rationale

Evidence

.github/workflows/mcp-observatory.yml

Decision evidence

public snapshot

AI called this Clean at 87.0% confidence as Benign with low false-positive risk.

Evidence for AI clean decision

package.json defines a postinstall hook that runs scripts/postinstall.mjs.
The postinstall exits for self-installs and CI, and only proceeds for a recognized MCP project.
Automatic CI workflow creation requires an explicit environment or package configuration opt-in.
The handshake helper discovers MCP configuration paths; discovery alone does not write them.
The flagged source files contain scanner, reporting, hashing, and diagnostic logic consistent with package functionality.

Evidence against

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 114 file(s), 682 KB of source, external domains: app.mcp-observatory.com, docs.oasis-open.org, github.com, img.shields.io, mcp-observatory.com, registry.modelcontextprotocol.io, registry.smithery.ai, www.w3.org

Source & flagged code

10 flagged

package.jsonView file

Lines 81-121json

81 "docs/target-contribution-guide.md",

82 "docs/target-gallery.md",

83 "docs/target-registry.md",

84 "docs/tool-call-receipts.md",

85 "examples/demo-mcp-server.mjs",

86 "examples/insecure-mcp-server",

87 "scripts/postinstall.mjs",

88 "schemas"

89 ],

90 "scripts": {

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

92 "cli": "tsx src/cli.ts",

93 "dashboard:build": "tsx scripts/build-dashboard.ts",

94 "dashboard:validate": "node scripts/validate-dashboard.mjs",

95 "integration:real": "tsx scripts/run-real-server-matrix.ts",

96 "evaluate:permission-delta": "tsx scripts/evaluate-permission-delta-conformance.ts",

97 "evaluate:permission-delta:mcp-diff": "tsx scripts/run-mcp-diff-baseline.ts",

98 "safety-index": "tsx scripts/run-safety-index.ts",

99 "lint": "eslint .",

100 "prepack": "npm run build",

101 "postinstall": "node scripts/postinstall.mjs",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L101

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L101

102 "proof:refresh": "tsx scripts/refresh-proof-artifacts.ts",

103 "release:prep": "node scripts/release.mjs",

104 "certification:pr-body": "tsx scripts/print-certification-pr-body.ts",

105 "typecheck": "tsc --noEmit -p tsconfig.json",

106 "test": "vitest run",

107 "test:permission-delta-model": "vitest run tests/permission-delta-model.test.ts",

108 "test:coverage": "vitest run --coverage",

109 "validate:artifacts": "tsx scripts/validate-artifacts.ts",

110 "verify:packed-install": "node scripts/verify-packed-install.mjs",

111 "smoke": "npm run cli -- run --target tests/fixtures/sample-target-config.json && npm run cli -- diff tests/fixtures/sample-run-a.json tests/fixtures/sample-run-b.json",

112 "boundary:check": "node scripts/check-repository-boundary.mjs"

113 },

114 "keywords": [

115 "mcp",

116 "mcp-server",

117 "model-context-protocol",

118 "ai-agent",

119 "agent-security",

120 "ai-supply-chain",

121 "ai-tools",

dist/src/ci-issue.jsView file

Lines 1-21javascript

1import { execFile } from "node:child_process";

2import { mkdtemp, rm, writeFile } from "node:fs/promises";

High

Child Process

Package source references child process execution.

dist/src/ci-issue.jsView on unpkg · L1

3import { tmpdir } from "node:os";

dist/src/commands/demo.jsView file

Lines 1-32javascript

1import { createRequire } from "node:module";

2import path from "node:path";

3import { fileURLToPath } from "node:url";

4import { runTarget } from "../index.js";

dist/src/commands/test.jsView file

Lines 222-262javascript

222 }

223 else {

224 await maybeConvertPassingCheckToCi({

225 artifact,

226 target,

227 targetPath: options.target,

228 setupCi: conversionFlags.setupCi,

229 yes: conversionFlags.yes,

230

dist/src/checks/skill-scan.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 5

High

Semantic Analysis Limited

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

dist/src/checks/skill-scan.js#virtual:normalized:round1View on unpkg

dist/src/commands/helpers.jsView file

•matchType = normalized_sha256 matchedPackage = @kryptosai/mcp-observatory@1.36.4 matchedPath = dist/src/commands/helpers.js matchedIdentity = npm:[redacted]:1.36.4 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/src/commands/helpers.jsView on unpkg

dist/src/risk-graph.jsView file

•matchType = normalized_sha256 matchedPackage = @kryptosai/mcp-observatory@1.36.4 matchedPath = dist/src/risk-graph.js matchedIdentity = npm:[redacted]:1.36.4 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/src/risk-graph.jsView on unpkg

dist/src/utils/failure-diagnosis.jsView file

•matchType = normalized_sha256 matchedPackage = @kryptosai/mcp-observatory@1.36.4 matchedPath = dist/src/utils/failure-diagnosis.js matchedIdentity = npm:[redacted]:1.36.4 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/src/utils/failure-diagnosis.jsView on unpkg

dist/src/checks/skill-scan.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @kryptosai/mcp-observatory@1.45.5 matchedIdentity = npm:[redacted]:1.45.5 similarity = 0.905 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; route for source-aware review.

dist/src/checks/skill-scan.jsView on unpkg

Source & flagged code

10 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

dist/src/ci-issue.jsView file

1import { execFile } from "node:child_process"; L2: import { mkdtemp, rm, writeFile } from "node:fs/promises";

High

Child Process

Package source references child process execution.

dist/src/ci-issue.jsView on unpkg · L1

Findings

1 Critical8 High5 Medium4 Low

CriticalPrevious Version Dangerous Deltadist/src/checks/skill-scan.js

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processdist/src/ci-issue.js

HighShell

HighRuntime Package Installdist/src/commands/test.js

HighSemantic Analysis Limiteddist/src/checks/skill-scan.js#virtual:normalized:round1

HighKnown Malware Source Similaritydist/src/commands/helpers.js

HighKnown Malware Source Similaritydist/src/risk-graph.js

HighKnown Malware Source Similaritydist/src/utils/failure-diagnosis.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumDynamic Requiredist/src/commands/demo.js

Affected versions and remediation

This report applies to @kryptosai/mcp-observatory@1.44.0.

See all versions of @kryptosai/mcp-observatory for other recorded verdicts.

Review the evidence and your use of @kryptosai/mcp-observatory@1.44.0 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: 2026-10-09 16:53:50.547Z (UTC).

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