@theronap/agnoclast-mcp@0.9.190
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AI Security Review
scanned 25d ago · by lpm-firewall-aiThe default endpoint is package-aligned, but the active capture path forwards an existing service token to an unrestricted custom CORTEX_URL host. This is conditional credential exposure, so it warrants a warning rather than a block.
Static reason
No blocking static signals were detected.; previous stored version diff introduced dangerous source
Trigger
After setup installs the capture Stop hook, it runs after assistant turns; the custom-host exposure requires CORTEX_URL to select that host.
Impact
A custom host outside the intended service could receive the service token and capture data, depending on the user's CORTEX_URL configuration.
Mechanism
Capture resolves the stored token and sends it as a bearer credential to the configured API base. Custom non-Vercel hosts are accepted without a destination allowlist.
AI rationale
The default endpoint is package-aligned, but the active capture path forwards an existing service token to an unrestricted custom CORTEX_URL host. This is conditional credential exposure, so it warrants a warning rather than a block.
Evidence
lib/capture.mjslib/capture_queue.mjslib/diagnose.mjslib/setup.mjs
Network endpoints1
agnoclast.com
Decision evidence
public snapshotAI called this Suspicious at 88.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- Capture reads the token already stored in the machine's MCP configuration.
- The API base accepts a custom CORTEX_URL host; only noncanonical Vercel deployment hosts are redirected.
- The capture hook sends the bearer token to the selected base, including on ingest requests.
- Setup installs a Stop hook that activates capture during assistant sessions.
Evidence against
- The default API host is agnoclast.com, matching the package's stated service.
- Capture redacts credential-shaped transcript text before processing, and the ingest sender strips any transcript field.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStringsUrlStrings
Source & flagged code
6 flaggedlib/capture.mjsView file
•matchType = previous_version_dangerous_delta
matchedPackage = @theronap/agnoclast-mcp@0.9.150
matchedIdentity = npm:QHRoZXJvbmFwL2Fnbm9jbGFzdC1tY3A:0.9.150
similarity = 0.804
summary = stored previous version shares package body but lacks this dangerous source file
High
Previous Version Dangerous Delta
This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.
lib/capture.mjsView on unpkg1import { 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.mjs
Findings
4 High3 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
HighPrevious Version Dangerous Deltalib/capture.mjs
MediumNetwork
MediumEnvironment Vars
MediumInstall Persistencelib/editors/antigravity.mjs
LowScripts Present
LowWeak Cryptolib/capture.mjs
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @theronap/agnoclast-mcp@0.9.190.
See all versions of @theronap/agnoclast-mcp for other recorded verdicts.
- Review the evidence and your use of @theronap/agnoclast-mcp@0.9.190 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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