tandem-browser
AI-Human symbiotic browser — browse the web as one entity
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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hydro13
Source: github_code
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
adm-zip: Crafted ZIP file triggers 4GB memory allocation
ws: Memory exhaustion DoS from tiny fragments and data chunks
Electron: Use-after-free in offscreen child window paint callback
Electron: Use-after-free in WebContents fullscreen, pointer-lock, and keyboard-lock permission callbacks
Electron: Sandboxed iframe can bypass the allow-popups restriction via the OpenURL navigation path
TANDEM_ACTOR_SOURCETANDEM_APITANDEM_API_PORTTANDEM_MCP_SOURCETANDEM_SOURCETool annotations
28/257 tools have annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
257/257 tools missing one or more hints — tandem_request_trusted_domain (missing: idempotentHint); tandem_request_global_window (missing: idempotentHint); tandem_list_trust (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +254 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool inputs are validated
138/257 tool handlers declare input schemas (54%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
Only 4/257 tool handlers wrap calls in try/catch (2%)
Wrap each tool handler body in try/catch and return a structured error response.
Tool test coverage
Only 0/257 tools referenced in tests (0%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
2 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Secrets not logged
2 secret values sent to console.log
Redact or omit secret values from log output.
No arbitrary install scripts
Has postinstall/preinstall script — runs arbitrary code on npm install
Remove postinstall/preinstall hooks unless they’re essential.
Production dependencies are patched
0 critical, 2 high severity in production deps — adm-zip@0.5.16 (high), ws@8.20.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Dev dependencies
8 critical/high in dev-only deps (does not ship to users)
Upgrade dev dependencies when convenient.
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