Tabryn (idugeni/tabryn) is an MCP server listed on the M8ven Trust Index. It scores 52 out of 100, grade D. It declares 16 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
D
Caution
52/100

Tabryn

Connects AI agents to your Chrome browser via MCP, enabling real-time control of existing tabs, sessions, and application state for development workflows.

→ idugeni/tabryn· listed on glama

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.

How we verified

Code Verified⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

idugeni

Source: Glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

⚡ Connect GitHub for Live Monitored

Install from

Glamanot scored here

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.

// key findings
⚠️
Known vulnerabilities in dependencies: 4 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// tools this server exposes16 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

list_tabs

List all open Chrome tabs with their IDs, titles, and URLs. Use this to find the tab you want to work with. Supports filtering by URL or title pattern.

select_tab

Activate/select a specific Chrome tab by its ID. The tab will be focused and brought to the foreground.

create_tab

Create a new Chrome tab. Returns the new tab's ID.

close_tab

Close a Chrome tab by its ID.

navigate

Navigate a tab to a URL, or go back/forward in history. Use tab_id from list_tabs or select_tab.

read_page

Read the accessibility tree / page structure of a tab. Returns a compact representation of visible elements with reference IDs for interaction. Use filter='interactive' to only get clickable/typable elements.

screenshot

Take a screenshot of the current state of a tab. Returns a base64-encoded PNG image. Optionally capture a specific region.

click

Click at specific coordinates on the page. Use screenshot or read_page to determine coordinates first.

type

Type text into the currently focused element on a tab.

scroll

Scroll the page in a tab in the specified direction.

form_input

Set the value of a form element using its reference ID from read_page. Works with text inputs, checkboxes, selects, etc.

execute_js

Execute JavaScript in the page context of a tab. The expression is evaluated and its result returned. Use for reading DOM state, calling page functions, etc.

read_console

Read console messages (log, error, warn, etc.) from a tab. Useful for debugging. Supports filtering by level and pattern.

read_network

Read HTTP network requests from a tab. Useful for debugging API calls and monitoring network activity.

reload

Reload a tab. Optionally bypass cache.

wait

Wait for a condition on a tab before proceeding.

// known CVEs in dependencies4 high1 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.12.1GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.12.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.1GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highws@8.18.0GHSA-96hv-2xvq-fx4p

ws: Memory exhaustion DoS from tiny fragments and data chunks

lowws@8.18.0GHSA-58qx-3vcg-4xpx

ws: Uninitialized memory disclosure

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configPROGRAMFILES
configPROGRAMFILES(X86)
configTABRYN_PORT18766 TCP port for MCP server ↔ Bridge communication
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

16/16 tools missing one or more hints — list_tabs (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); select_tab (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); create_tab (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +13 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 test coverage

8/16 tools referenced in tests (50%)

Write tests that reference each tool by name so every tool has at least one test.

No eval / new Function

1 eval() or new Function() call — dynamic code execution

Replace eval / Function with explicit parsing or safer alternatives.

Production dependencies are patched

0 critical, 4 high severity in production deps — @modelcontextprotocol/sdk@1.12.1 (high), @modelcontextprotocol/sdk@1.12.1 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Verified](https://m8ven.ai/badge/mcp/idugeni/tabryn?variant=verified)](https://m8ven.ai/mcp/idugeni/tabryn)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: 83e10587bc1ff81a092dc5e9305bc6fcee806f11
code hash: 764d10e8b8dbf13c88dc7d6f1819313ae928929b92f1895badd10932be9cd6e6
view raw JSON →
Check MCPs from inside your assistant
Tool Check · MCP

Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.

https://m8ven.ai/api/mcp/tool-check
check_toolsearch_toolscompare_toolsrecommend_alternativescheck_publisherreport_concern
How to add it →Free · no account needed · works in any MCP client