halfcycle@0.7.1
Your coding agents are the engineers. Halfcycle is the rest of the team: it scopes, designs, plans and reviews production software, and runs the build for Claude Code and Codex.
AI Security Review
scanned 2d ago · by lpm-firewall-aiThe package has no install hook, and its CLI starts through the declared command entrypoint. Credential use is directed to the configured Halfcycle service, while the bundled runner excludes credential-like paths from saving.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
The CLI runs when a user invokes it; library behavior requires a consuming application to call its exported APIs.
Impact
No unauthorized collection, account action, or destructive behavior was identified.
Mechanism
The tool communicates with the configured Halfcycle service and uses service credentials for its API requests.
AI rationale
The package has no install hook, and its CLI starts through the declared command entrypoint. Credential use is directed to the configured Halfcycle service, while the bundled runner excludes credential-like paths from saving.
Network endpoints2
control.halfcycle.aiapp.halfcycle.ai
Decision evidence
public snapshotAI called this Clean at 96.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The manifest exposes a library at dist/index.js and a CLI at dist/bin.js.
- The CLI entrypoint loads dist/cli.js when the command runs; the manifest has no install lifecycle hook.
- The default control service is control.halfcycle.ai, with an explicit HALFCYCLE_SERVICE_URL override.
- Build-record requests use the configured service URL and send the service credential as a bearer token.
- The bundled runner marks credential-like paths as neverSaved.
Evidence against
Behavioral surface
ChildProcessCryptoEnvironmentVarsEvalFilesystemNetworkShell
HighEntropyStringsUrlStrings
Source & flagged code
10 flaggedbin/bin.bundle.mjsView file
15166const program = [
L15167: "const p=require(`path`),f=require(`fs`),c=require(`child_process`);",
L15168: "let d=process.cwd();",
High
Child Process
Package source references child process execution.
bin/bin.bundle.mjsView on unpkg · L1516614671var WRITE_CAPABLE_TOOLS = ["Edit", "MultiEdit", "NotebookEdit", "Write"];
L14672: var PRE_TOOL_USE_MATCHER = "^(Bash|Read|Grep|Write|Edit|MultiEdit|NotebookEdit|Agent|PowerShell)$";
L14673: function hookCommand(script, verb) {
High
8// dist/guard-origin.js
L9: var DEFAULT_GUARD_ORIGIN = "https://guard.halfcycle.ai";
L10: function resolveGuardOrigin(env) {
...
L26: ZodArray: () => ZodArray,
L27: ZodBase64: () => ZodBase64,
L28: ZodBase64URL: () => ZodBase64URL,
...
L1487: error: new (_Err ?? $ZodError)(result.issues.map((iss) => finalizeIssue(iss, ctx, config())))
L1488: } : { success: true, data: result.value };
L1489: };
...
L14671: var WRITE_CAPABLE_TOOLS = ["Edit", "MultiEdit", "NotebookEdit", "Write"];
L14672: var PRE_TOOL_USE_MATCHER = "^(Bash|Read|Grep|Write|Edit|MultiEdit|NotebookEdit|Agent|PowerShell)$";
L14673: function hookCommand(script, verb) {
Low
Findings
2 Critical6 High4 Medium6 Low
CriticalReverse Shelldist/cli.js
CriticalTrigger Reachable Dangerous Capabilitydist/cli.js
HighChild Processbin/bin.bundle.mjs
HighShellbin/bin.bundle.mjs
HighSame File Env Network Executiondist/cli.js
HighSandbox Evasion Gated Capabilitydist/cli.js
HighCross File Remote Execution Contextdist/cli.js
HighRuntime Package Installdist/cli.js
MediumNetwork
MediumEnvironment Vars
MediumShips Build Helperbin/pre-tool-use-filter.sh
MediumStructural Risk Force Deep Review
LowScripts Present
Low
Affected versions and remediation
This report applies to halfcycle@0.7.1.
See all versions of halfcycle for other recorded verdicts.
- Review the evidence and your use of halfcycle@0.7.1 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.