registry / @theronap/cortex-mcp / 0.9.157
@theronap/cortex-mcp@0.9.157
Renamed to @theronap/agnoclast-mcp — use that. Existing installs switch themselves to the new name on next start.
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AI Security Review
scanned 25d ago · by lpm-firewall-aiThe inspected manifest has no automatic install hook, and package-managed agent changes occur through explicit CLI setup or uninstall. Antigravity setup creates a watcher artifact that requires separate activation, so this is a guarded first-party integration capability rather than a confirmed attack.
Static reason
No blocking static signals were detected.
Trigger
A user runs the package setup command and later chooses to load the generated launch agent.
Impact
If activated, the watcher can run the package's sync command when the watched Antigravity path changes. The source reports that this command depends on a local development checkout.
Mechanism
Setup writes a shell script and launch agent plist under the user's home directory; the adapter instructs the user to activate it separately.
AI rationale
The inspected manifest has no automatic install hook, and package-managed agent changes occur through explicit CLI setup or uninstall. Antigravity setup creates a watcher artifact that requires separate activation, so this is a guarded first-party integration capability rather than a confirmed attack.
Evidence
lib/editors/antigravity.mjslib/setup.mjs
Decision evidence
public snapshotAI called this Suspicious at 78.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The package defines a CLI but no preinstall, install, or postinstall hook.
- The Codex and Cursor adapters describe capture-only integrations; their flagged locations do not establish a control hijack.
- Antigravity setup writes a launch agent artifact and tells the user to load it separately to activate the watcher.
- The uninstall command is explicitly invoked through the CLI and removes package-managed integrations.
Evidence against
- The Antigravity watcher uses a local development checkout, and its adapter reports that setup is incomplete until separately activated.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStringsUrlStrings
Source & flagged code
6 flaggedlib/capture.mjsView file
1import { readFileSync, accessSync, constants, openSync, mkdirSync } from 'fs'
L2: import { spawn, execFileSync } from 'child_process'
L3: import { homedir } from 'os'
...
L21: if (!res.ok) return null
L22: const j = await res.json().catch(() => ({}))
L23: return Array.isArray(j.types) ? j.types : null
...
L35: try {
L36: if (resolve(String(cwd)) === homedir()) return 'general'
L37: } catch { /* unresolvable path — fall through to basename */ }
...
L45: //
L46: // Handles the four remote forms git emits: scp-like ssh (git@github.com:o/n.git), ssh://, https://,
L47: // git://. The HOST CHECK IS LOAD-BEARING, not cosmetic: this string becomes a clearance key, and
Low
Weak Crypto
Package source references weak cryptographic algorithms.
lib/capture.mjsView on unpkg · L1lib/editors/antigravity.mjsView file
4Trigger-reachable persistence chain: manifest.bin -> bin/cortex-mcp.mjs -> lib/install.mjs -> lib/editors/index.mjs -> lib/editors/antigravity.mjs
L4: // WatchPaths the trajectory store and runs a one-shot sync. wire() generates the two artifacts
L5: // (the sync.sh + the launchd plist) deterministically. It does NOT run `launchctl load` here
L6: // (an unverifiable system mutation) and it flags the PORTABILITY BLOCKER below.
...
L21: /** The launchd plist, home-substituted. Deterministic — golden-testable byte-for-byte. */
L22: export function renderAntigravityPlist({ home = homedir() } = {}) {
L23: const sh = join(home, '.cortex', 'antigravity-sync.sh')
...
L33: <array>
L34: <string>/bin/bash</string>
L35: <string>${sh}</string>
Findings
3 High4 Medium5 Low
HighTrigger Reachable External Ai Agent Control Surface Mutationlib/uninstall.mjs
HighTrigger Reachable Persistencelib/editors/antigravity.mjs
HighSemantic Analysis Limitedlib/diagnose.mjs#virtual:normalized:round1
MediumNetwork
MediumEnvironment Vars
MediumInstall Persistencelib/editors/antigravity.mjs
MediumSuspicious Lifecycle Evidencepackage.json
LowScripts Present
LowWeak Cryptolib/capture.mjs
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @theronap/cortex-mcp@0.9.157.
See all versions of @theronap/cortex-mcp for other recorded verdicts.
- Review the evidence and your use of @theronap/cortex-mcp@0.9.157 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: .
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