registry / @sentropic/h2a-runtime / 0.98.6
@sentropic/h2a-runtime@0.98.6
h2a heavy runtime (sessions / k8s / tunnel, node-pty + aws-sdk). Lazily imported by @sentropic/h2a; installed separately.
AI Security Review
scanned 19d ago · by lpm-firewall-aiThe runtime performs first-party agent configuration setup automatically as part of a user-invoked launch, so a bounded extension-lifecycle warning is appropriate. No install hook or concrete attack behavior was found.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
A user launches an agent session through h2a.
Impact
The selected agent configuration can retain an h2a MCP entry after the launch.
Mechanism
The runtime starts the central MCP service and invokes host setup with a write target for the selected agent profile.
AI rationale
The runtime performs first-party agent configuration setup automatically as part of a user-invoked launch, so a bounded extension-lifecycle warning is appropriate. No install hook or concrete attack behavior was found.
Evidence
dist/index.jsdist/central-mcp.js.mcp.json~/.codex/config.json~/.config/codex/mcp.json
Network endpoints1
127.0.0.1
Decision evidence
public snapshotAI called this Suspicious at 86.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- package.json declares no install lifecycle hook; its only script is build.
- The h2a launch path calls central MCP setup, which writes a configuration entry for the selected agent host. The endpoint is on loopback.
- Plugin registration and Claude hook installation are exposed through explicit CLI operations; hook installation requires the install-hooks option.
- Restore reads local Claude project state, and migration stages a local conversation into the workspace for remote resume.
- The reviewed credential helper checks local authentication-file presence, and the PTY module loads node-pty for terminal support.
Evidence against
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsUrlStrings
Source & flagged code
5 flaggeddist/central-mcp.jsView file
21const corePackage = "@sentropic/h2a";
L22: coreCentralMcp ??= import(corePackage).then((core) => {
L23: const candidate = core;
Medium
Dynamic Require
Package source references dynamic require/import behavior.
dist/central-mcp.jsView on unpkg · L21dist/pty.jsView file
94package = @sentropic/h2a-runtime; repositoryIdentity = h2a; dependency = node-pty
L94: try {
L95: require("node-pty");
L96: }
High
Copied Package Dependency Bridge
Package metadata claims a different repository identity while copied source loads a runtime dependency bridge.
dist/pty.jsView on unpkg · L94•matchType = previous_version_dangerous_delta
matchedPackage = @sentropic/h2a-runtime@0.98.4
matchedIdentity = npm:QHNlbnRyb3BpYy9oMmEtcnVudGltZQ:0.98.4
similarity = 0.848
summary = stored previous version shares package body but lacks this dangerous source file
Findings
4 High4 Medium4 Low
HighCopied Package Dependency Bridgedist/pty.js
HighExternal Ai Agent Control Surface Mutationdist/plugin.js
HighSemantic Analysis Limiteddist/auth-tools.js#virtual:normalized:round1
HighPrevious Version Dangerous Deltadist/pty.js
MediumDynamic Requiredist/central-mcp.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @sentropic/h2a-runtime@0.98.6.
See all versions of @sentropic/h2a-runtime for other recorded verdicts.
- Review the evidence and your use of @sentropic/h2a-runtime@0.98.6 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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