registry / twzrd-x402-gate / 0.12.3
twzrd-x402-gate@0.12.3
Buyer-side x402 trust gate: free preflight before signing USDC on Solana + Base mainnet (eip155:8453). By default no signing if preflight is down; TWZRD_FAIL_OPEN overrides. Other EVM: unscored.
AI Security Review
scanned 5d ago · by lpm-firewall-aiThe package has no install-time hook, and the flagged process launches belong to user-run tools. The safe-fetch precheck has a documented challenge-binding limitation, but the source presents it as advisory rather than as a secure firewall.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
Network preflight and optional AgentCash invocation occur when a user runs the relevant CLI or calls the corresponding API.
Impact
No unauthorized collection or action was identified; the documented limitation is that the paid challenge may differ from the one preflighted.
Mechanism
The tool checks payment requirements with TWZRD before optionally handing an allowed payment request to AgentCash. Its advisory precheck limitation is disclosed in the source.
AI rationale
The package has no install-time hook, and the flagged process launches belong to user-run tools. The safe-fetch precheck has a documented challenge-binding limitation, but the source presents it as advisory rather than as a secure firewall.
Network endpoints1
intel.twzrd.xyz/v1/intel/preflight
Decision evidence
public snapshotAI called this Clean at 93.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The manifest declares prepublishOnly but no install, preinstall, or postinstall hook.
- The safe-fetch module auto-runs only when invoked as a CLI entry point.
- The payment preflight evaluates the requested resource, recipient, price, network, and asset against the package’s gate.
- The CLI describes its flow as probing a 402, running TWZRD preflight, and invoking AgentCash only if allowed.
- The safe-fetch documentation discloses that its precheck is advisory and may not bind the challenge AgentCash ultimately pays.
Evidence against
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork
HighEntropyStringsUrlStrings
Source & flagged code
5 flaggedbin/twzrd-safe-fetch.jsView file
5*/
L6: import { spawnSync } from "node:child_process";
L7: import { existsSync } from "node:fs";
High
Child Process
Package source references child process execution.
bin/twzrd-safe-fetch.jsView on unpkg · L5bin/twzrd-gate-eval-refuse.jsView file
28const pkgRoot = join(__dirname, "..");
L29: const require = createRequire(import.meta.url);
L30:
Medium
Dynamic Require
Package source references dynamic require/import behavior.
bin/twzrd-gate-eval-refuse.jsView on unpkg · L28bin/twzrd-gate-doctor.jsView file
33// tsx resolves `src` by absolute path, so the user's cwd is safe to keep.
L34: const r = spawnSync("npx", ["--yes", "tsx", src, ...process.argv.slice(2)], {
L35: stdio: "inherit",
Findings
1 Critical3 High4 Medium5 Low
CriticalPrevious Version Dangerous Deltadist/safe-fetch.js
HighChild Processbin/twzrd-safe-fetch.js
HighRuntime Package Installbin/twzrd-gate-doctor.js
HighSemantic Analysis Limiteddist/evidence-verify.js#virtual:normalized:round1
MediumDynamic Requirebin/twzrd-gate-eval-refuse.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowNon Install Lifecycle Scripts
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to twzrd-x402-gate@0.12.3.
See all versions of twzrd-x402-gate for other recorded verdicts.
- Review the evidence and your use of twzrd-x402-gate@0.12.3 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.