registry / @theronap/agnoclast-mcp / 0.9.258
@theronap/agnoclast-mcp@0.9.258
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AI Security Review
scanned 12d ago · by lpm-firewall-aiThe Antigravity adapter creates a launch agent and executable watcher, leaving a platform integration capability that merits a warning. The source shows an explicit install path and does not establish an npm lifecycle attack or active malicious behavior.
Static reason
No blocking static signals were detected.
Trigger
The user runs the install command with Antigravity selected or detected.
Impact
If activated, the watcher can run a background sync when the watched location changes. No confirmed attack or unconsented npm install behavior was established.
Mechanism
The adapter writes an executable sync script and a plist that watches Antigravity’s trajectory location. The plist sets RunAtLoad to false, and the adapter identifies a separate launchctl command for activation.
AI rationale
The Antigravity adapter creates a launch agent and executable watcher, leaving a platform integration capability that merits a warning. The source shows an explicit install path and does not establish an npm lifecycle attack or active malicious behavior.
Evidence
bin/cortex-mcp.mjslib/install.mjslib/editors/antigravity.mjs~/.cortex/antigravity-sync.sh~/Library/LaunchAgents/com.cortex.antigravity-sync.plist
Decision evidence
public snapshotAI called this Suspicious at 78.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The manifest lists only release, promotion, and rollback scripts; it has no npm install hook.
- The explicit install command calls the editor installer, which invokes wiring for selected adapters and requires a token.
- Codex and Cursor configuration writes occur in token-accepting adapter methods; the flagged source locations are those writes.
- The Antigravity adapter writes an executable sync script and a launch agent plist under the user’s home directory.
- The plist watches Antigravity’s trajectory location and sets RunAtLoad to false; the adapter says activation requires a separate launchctl command.
Evidence against
- The source does not establish an automatic npm install trigger or an active attack. The concern is the persistent agent integration created by an explicit install command.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
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/agnoclast-mcp@0.9.258.
See all versions of @theronap/agnoclast-mcp for other recorded verdicts.
- Review the evidence and your use of @theronap/agnoclast-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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