comet-mcp (simplicianokelly52/comet_mcp) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 10 tools. No publisher has claimed this listing.

Caution

74/100

comet-mcp

Item: comet-mcp
Rating: 74
Author: M8ven

An MCP server that connects Claude to Perplexity Comet for agentic web browsing and deep research via an isolated browser instance. It enables Claude to delegate complex navigation, login flows, and real-time task monitoring to Perplexity's specialized research intelligence.

→ simplicianokelly52/comet_mcp · 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 push why connect →

Who stands behind it

simplicianokelly52

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: 1 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 exposes10 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.

comet_connect

Connect to Comet browser (auto-starts if needed)

comet_ask

Send a prompt to Comet/Perplexity and wait for the complete response (blocking). Ideal for tasks requiring real browser interaction (login walls, dynamic content, filling forms) or deep research with agentic browsing.

comet_poll

Check agent status and progress. Call repeatedly to monitor agentic tasks.

comet_stop

Stop the current agent task if it's going off track

comet_screenshot

Capture a screenshot of current page

comet_mode

Switch Perplexity search mode. Modes: 'search' (basic), 'research' (deep research), 'labs' (create files/apps). Call without mode to see current mode.

comet_folders

Manage research spaces in Perplexity. List existing spaces, create new ones, or save current research to a space.

comet_library

Search your Perplexity library for existing research. Returns past research threads matching your query.

comet_health

Check MCP Comet connection health and auto-recover if it's hung. Returns whether the connection is alive and whether a reconnect/restart was performed. Use when a task seems stuck (e.g. after a 'stalled' result) or after connection errors. Pass restart:true to force a full browser restart.

comet_done

Call when you're finished with the current research and won't need it anymore. Clears the research context and hides the app. Use after you've gathered all needed information and answered all follow-up questions.

// known CVEs in dependencies1 high

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

high@modelcontextprotocol/sdk@1.0.0GHSA-w48q-cv73-mx4w

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

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.

configCOMET_PATH"": "/path/to/your/Comet"

// 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

10/10 tools missing one or more hints — comet_connect (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); comet_ask (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); comet_poll (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +7 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.

Tests exist

No test files found

Add tests that exercise each declared tool.

Production dependencies are patched

0 critical, 1 high severity in production deps — @modelcontextprotocol/sdk@1.0.0 (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 4 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/simplicianokelly52/comet_mcp?variant=verified)](https://m8ven.ai/mcp/simplicianokelly52/comet_mcp)

Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.

commit: 3fb03b81639ac7082d3c94e47495bd1cb1d81556

code hash: 687d38c34833300c9748eb5c34ba88937bbc3d88f68e7ad644a50b10d764aeb1

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