registry / @tonbo/yield / 0.3.5
@tonbo/yield@0.3.5
Tonbo Yield: capture your agents' sessions on every machine and list them from any.
AI Security Review
scanned 3d ago · by lpm-firewall-aiThe credential indicators resolve to sample text in a secret-filter test vector, while the actual login and API flows use Tonbo’s service origin. Session upload is the package’s stated purpose, and the disclosed, content-free metrics have an opt-out.
Static reason
One or more suspicious static signals were detected.
Trigger
A user runs the CLI; capture starts through an explicit login or daemon install/run command.
Impact
Expected session syncing and snapshot storage in the user’s Tonbo account; no unrelated credential collection or attack behavior was found.
Mechanism
The CLI exchanges Tonbo login credentials with Tonbo’s login service, sends authenticated requests to the configured Tonbo API and related Tonbo services, and records sessions for its stated capture feature. Disclosed Alpha metrics can be disabled.
AI rationale
The credential indicators resolve to sample text in a secret-filter test vector, while the actual login and API flows use Tonbo’s service origin. Session upload is the package’s stated purpose, and the disclosed, content-free metrics have an opt-out.
Network endpoints5
tonbo.devapi.tonbo.devstreams.tonbo.devgit.tonbo.devregistry.npmjs.org
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 `dist/bin/yield.js` as a CLI and declares no install, preinstall, or postinstall hook.
- The executable parses CLI arguments; the reviewed behavior is tied to commands such as login and daemon installation.
- Browser login redeems a one-time code with a verifier and login secret at Tonbo’s login origin; API requests use the default `https://api.tonbo.dev` or the user-configured `TONBO_API_ORIGIN`.
- The flagged OpenAI credential string appears in a secret-filter test vector as sample transcript text, not as code reading `OPENAI_API_KEY`.
- Session capture and syncing to Tonbo are the package’s stated purpose; its README describes uploading session lines as records.
- The README describes Alpha metrics as content-free, documents what they measure, and provides `TONBO_YIELD_METRICS=off` to disable them.
Evidence against
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
5 flaggeddist/bin/yield.jsView file
3542patternName = github_pat
severity = critical
line = 3542
Critical
Critical Secret
Package contains a critical-looking secret pattern.
dist/bin/yield.jsView on unpkg · L35423542patternName = github_pat
severity = critical
line = 3542
Critical
Secret Pattern
GitHub personal access token in dist/bin/yield.js
dist/bin/yield.jsView on unpkg · L3542•Manifest-reachable source captures an API credential, sends it to a fixed unofficial gateway, and persists that redirection in agent or shell configuration.
dist/bin/yield.js:
import { createInterface } from "node:readline/promises";
await handle.writeFile(`${JSON.stringify(login, null, 2)}
const authorization = new URL("/cli/login", this.loginOrigin);
authorization.search = new URLSearchParams({
return authorization.toString();
listenForCode(expectedState, authorizationUrl, progress2) {
let authorizationStarted = false;
const startAuthorization = (browserOpened = true) => {
High
Credential Redirect Persistence
Manifest-reachable source sends a prompted API credential to a fixed unofficial gateway and persists the redirection.
Findings
2 Critical2 High3 Medium5 Low
CriticalCritical Secretdist/bin/yield.js
CriticalSecret Patterndist/bin/yield.js
HighCredential Redirect Persistencedist/bin/yield.js
HighSandbox Evasion Gated Capabilitydist/bin/yield.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
LowSuspicious Lifecycle Evidencepackage.json
Affected versions and remediation
This report applies to @tonbo/yield@0.3.5.
See all versions of @tonbo/yield for other recorded verdicts.
- Review the evidence and your use of @tonbo/yield@0.3.5 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.