project-tendril (gadgethd/Project-Tendril) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 18 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Emerging
74/100
10 days ago

project-tendril

Enables AI agents to operate an isolated local Chromium browser through MCP, with semantic snapshots, ref-based actions, search, research, crawling, and CDP access.

→ gadgethd/Project-Tendril· listed on glama

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

gadgethd

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
✅
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.
🔐
You'll be asked for 2 credentials: GOOGLE_SEARCH_API_KEY, TENDRIL_TOKEN
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// 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.
🔐 secretGOOGLE_SEARCH_API_KEY
configGOOGLE_SEARCH_CX
configPROGRAMFILES
configPROGRAMFILES(X86)
configSEARXNG_URL
configTENDRIL_ACTION_TIMEOUT_MS
configTENDRIL_ALLOWED_HOSTSComma-separated host allowlist
configTENDRIL_ALLOW_NO_SANDBOXAn opt-in live quality smoke is available with TENDRIL_LIVE_SEARXNG_URL=https://your-instance.example =true npx vitest run tests/search-live.test.ts; normal tests never contact a live provider.
configTENDRIL_BLOCKED_HOSTSComma-separated host blocklist
configTENDRIL_BLOCK_PRIVATE_NETWORKSBlock loopback, private, link-local, metadata, and reserved destinations
configTENDRIL_CONFIG
configTENDRIL_DATA_DIRNamed profiles and HTTP token
configTENDRIL_EXECUTABLE_PATHChromium or Chrome executable
configTENDRIL_HEADLESSLaunch Chromium without a visible window
configTENDRIL_HOSTHTTP bind host
configTENDRIL_LOG_LEVELdebug, info, warn, or error
configTENDRIL_MAX_RESPONSE_BODY_BYTES
configTENDRIL_MAX_SESSIONSMaximum concurrent Chromium processes
configTENDRIL_MAX_SNAPSHOT_CHARS
configTENDRIL_NAVIGATION_TIMEOUT_MS
configTENDRIL_PORTHTTP listen port
configTENDRIL_RUNTIME_DIREphemeral session state
configTENDRIL_SEARCH_PROVIDERSOrdered search adapters
configTENDRIL_SEARXNG_URLOptional self-hosted SearXNG URL
configTENDRIL_SESSION_IDLE_MSIdle-session lifetime
🔐 secretTENDRIL_TOKENIf is not set, Project Tendril creates a random token and stores it at:
configTENDRIL_WORKSPACE_ROOTSPermitted upload roots
// quality suggestions

Dependencies

12 runtime dependencies (10 dev), 1 flagged: playwright

All four hints declared on every tool

18/18 tools missing one or more hints — browser_session (missing: idempotentHint); browser_page (missing: idempotentHint); browser_navigate (missing: destructiveHint, idempotentHint), +15 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

8/18 tools referenced in tests (44%)

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

Dependency freshness

1/12 production deps stale: robots-parser@2023-02-21 (3.5y)

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 2 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 Score](https://m8ven.ai/badge/mcp/gadgethd/project-tendril)](https://m8ven.ai/mcp/gadgethd/project-tendril)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: b7c11d7b8454b49090e0217dbbce676115e8edb1
code hash: fb833a4603201c14fbffc803b3af5ff266900f5507df8b1fd16f9f60abfb9a52
verified: 9/1/2026, 5:35:02 PM
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