tscircuit@0.0.3022
**Design circuit boards with TypeScript and React.**
AI Security Review
scanned 6d ago · by lpm-firewall-aiThe exported browser bundle automatically initializes PostHog and captures runframe activity with an embedding hostname or persistent anonymous ID. An opt-out is present, but the runtime telemetry is not disclosed in the README, so this merits a warning rather than a malicious verdict.
Static reason
No blocking static signals were detected.
Trigger
Loading the browser bundle in a browser on a non-localhost host; telemetry can be disabled with TSCIRCUIT_TELEMETRY_DISABLED.
Impact
Browser users’ activity and embedding domain may be reported to the package vendor without disclosure in the README.
Mechanism
The bundle initializes PostHog with the package’s project token and postpig.tscircuit.com endpoint, and captures runframe activity with an embedding hostname or anonymous ID.
AI rationale
The exported browser bundle automatically initializes PostHog and captures runframe activity with an embedding hostname or persistent anonymous ID. An opt-out is present, but the runtime telemetry is not disclosed in the README, so this merits a warning rather than a malicious verdict.
Evidence
dist/browser.min.jspackage.jsonREADME.mdrunframe:anonymous-id (browser localStorage key)
Network endpoints1
postpig.tscircuit.com
Decision evidence
public snapshotAI called this Suspicious at 91.0% confidence as Unknown with medium false-positive risk.
Evidence for warning
- The browser bundle initializes PostHog automatically when loaded in a browser and sends events to https://postpig.tscircuit.com.
- The bundle identifies activity using the embedding page’s hostname or a persistent anonymous ID stored as runframe:anonymous-id, then captures runframe_activity events.
- The bundle has a TSCIRCUIT_TELEMETRY_DISABLED opt-out, but the README does not disclose this runtime telemetry.
Evidence against
- There are no install lifecycle scripts in the manifest.
- The main entry point re-exports circuit libraries; it does not itself show the telemetry behavior.
- The CLI imports @tscircuit/cli only when the user invokes the binary.
- The browser bundle is part of a circuit design tool that includes browser UI functionality.
Behavioral surface
EnvironmentVarsFilesystem
HighEntropyStringsMinifiedUrlStrings
Source & flagged code
3 flaggeddist/webworker.min.jsView file
•path = dist/webworker.min.js
kind = oversized_source_file
sizeBytes = 18241615
magicHex = [redacted]
Medium
Oversized Source File
Package contains source files above the normal full-analysis size ceiling.
dist/webworker.min.jsView on unpkgpackage.jsonView file
26"exports": {
".": {
"types": "./dist/index.d.ts",
"default": "./dist/index.js"
},
"./browser": "./dist/browser.min.js"
},
"bin": {
"tsci": "cli.mjs",
"tscircuit": "cli.mjs"
},
"devDependencies": {
"@types/bun": "^1.2.16",
"esbuild": "^0.20.2",
"e
Medium
Ai Review Evidence
The browser bundle initializes PostHog automatically when loaded in a browser and sends events to https://postpig.tscircuit.com.
package.jsonView on unpkg · L26cli.mjsView file
Findings
5 Medium4 Low
MediumEnvironment Vars
MediumOversized Source Filedist/webworker.min.js
MediumStructural Risk Force Deep Review
MediumAi Review Evidencepackage.json
MediumAi Review Evidencecli.mjs
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to tscircuit@0.0.3022.
See all versions of tscircuit for other recorded verdicts.
- Review the evidence and your use of tscircuit@0.0.3022 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.