registry / @theronap/cortex-mcp / 0.9.258
@theronap/cortex-mcp@0.9.258
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 12d ago · by lpm-firewall-aiThe inspected source supports a warning for the Antigravity platform integration, whose setup creates a watcher artifact that can run after separate activation. It does not establish a concrete attack or unconsented install-time mutation.
Static reason
No blocking static signals were detected.
Trigger
A user runs setup for an editor; Antigravity synchronization requires the launch agent to be activated separately.
Impact
An activated watcher can run the sync script when Antigravity state changes; the inspected excerpts do not establish malicious behavior.
Mechanism
Setup writes editor MCP configuration. The Antigravity adapter prepares a script and launch-agent file under the user's home directory.
AI rationale
The inspected source supports a warning for the Antigravity platform integration, whose setup creates a watcher artifact that can run after separate activation. It does not establish a concrete attack or unconsented install-time mutation.
Evidence
lib/editors/antigravity.mjslib/editors/codex.mjslib/editors/cursor.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 manifest exposes a CLI and has no install lifecycle hook.
- The editor adapters write MCP configuration, and the setup source shows a configuration write; these are setup-time changes.
- The Antigravity adapter uses the user's home directory and prepares a sync script and launch-agent path.
- The uninstall behavior is reached through a CLI command, and the source describes dry-run and purge behavior.
Evidence against
- The Antigravity adapter says it does not load the launch agent; its watcher requires a separate activation step.
- No inspected source established an automatic install-time change, credential disclosure, or other concrete attack.
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 Limitedbin/cortex-mcp.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@0.9.258.
See all versions of @theronap/cortex-mcp for other recorded verdicts.
- Review the evidence and your use of @theronap/cortex-mcp@0.9.258 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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