Coart (stevenke1981/coart) is an MCP server listed on the M8ven Trust Index. It scores 70 out of 100, grade C. It declares 10 tools. No publisher has claimed this listing.

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C
Caution
70/100

Coart

Enables an infinite canvas for Codex using tldraw, with tools for canvas state, assets, images, HTML, and slide containers, all saved locally.

→ stevenke1981/coart· 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

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Who stands behind it

stevenke1981

Source: Glama

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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: 2 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
10 tools verified — handlers match their declared behaviour
3 read-only tools verified — handlers contain no write/delete/exec
✅
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.

get_coart_canvas_state

Use this when you need the persisted Coart snapshot, view state, selection, manifest, or storage paths.

save_coart_canvas_state

Use this when the widget needs to persist a Coart/tldraw snapshot and localize data URL assets.

save_coart_selection

Use this when the widget selection changes and Codex must target the same selected shapes.

save_coart_view_state

Use this when the widget needs to persist the active page and camera.

get_coart_selection

Use this when a generation or edit workflow needs the current persisted Coart selection.

save_coart_reference_image

Use this when the widget provides a reference or annotation image that must be saved inside canvas assets.

read_coart_asset

Use this when a workflow needs to read one project-local /assets/... item as base64.

insert_coart_image

Use this when a generated image must be copied into canvas assets and inserted, optionally replacing an acknowledged AI image holder.

insert_coart_html

Use this when single-file HTML must be inserted, an acknowledged HTML shape updated, or a page added to Slides.

download_coart_file

Use this when the user explicitly wants a Coart asset or data payload saved into Downloads.

// known CVEs in dependencies2 high3 medium2 low

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

highvite@7.0.0GHSA-fx2h-pf6j-xcff

vite: `server.fs.deny` bypass on Windows alternate paths

highvite@7.0.0GHSA-p9ff-h696-f583

Vite Vulnerable to Arbitrary File Read via Vite Dev Server WebSocket

mediumvite@7.0.0GHSA-4w7w-66w2-5vf9

Vite Vulnerable to Path Traversal in Optimized Deps `.map` Handling

mediumvite@7.0.0GHSA-93m4-6634-74q7

vite allows server.fs.deny bypass via backslash on Windows

mediumvite@7.0.0GHSA-v6wh-96g9-6wx3

launch-editor: NTLMv2 hash disclosure via UNC path handling on Windows

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.
configCHROME_PATH
configCOART_CANVAS_DIR
configCOART_CHROME
configCOART_HTTP_HOST
configCOART_HTTP_PORT
configCOART_PROJECT_DIR
configCOART_WIDGET_BUILD
configPROGRAMFILES
configPROGRAMFILES(X86)
// quality suggestions

Tool inputs are validated

9/10 tool handlers declare input schemas (90%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tool handlers catch errors

Only 0/10 tool handlers wrap calls in try/catch (0%)

Wrap each tool handler body in try/catch and return a structured error response.

Tests exist

No test files found

Add tests that exercise each declared tool.

Shell command execution

1 child_process call — runs shell commands

Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.

Production dependencies are patched

0 critical, 2 high severity in production deps — vite@7.0.0 (high), vite@7.0.0 (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 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/stevenke1981/coart?variant=verified)](https://m8ven.ai/mcp/stevenke1981/coart)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: 14e1efb5e9a5f9f45edd64226f112cd021a12d5e
code hash: c42727ebf845751d0ec3c7b24bcee3d8eb7a74c6b81ab8290bef07d537c94063
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