MassGen (massgen/MassGen) is an MCP server listed on the M8ven Trust Index. It scores 78 out of 100, grade B. It declares 47 tools. No publisher has claimed this listing.

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B
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78/100
8 days ago

MassGen

🚀 MassGen is an open-source multi-agent scaling system that runs in your terminal, autonomously orchestrating frontier models and agents to collaborate, reason, and produce high-quality results. | Join us on Discord: discord.massgen.ai

→ massgen/MassGen· listed on github_topic

Warning. Serious findings were identified. Review the full report before connecting. 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

massgen

Source: github_topic

Is this your MCP?

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Install from

GitHub

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// key findings
🚨
Code appears obfuscated
20 files are unreadable to a human reviewer. Cannot audit what they do.
🔐
You'll be asked for 8 credentials: ANTHROPIC_API_KEY, OPENAI_API_KEY, GEMINI_API_KEY, UI_TARS_API_KEY, GOOGLE_API_KEY, LOGFIRE_READ_TOKEN, AZURE_OPENAI_API_KEY, CLAUDE_CODE_API_KEY
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.
configMASSGEN_CHECKPOINT_WEB_UI
configMASSGEN_CHECKPOINT_WEB_HOST
configMASSGEN_CHECKPOINT_WEB_PORT
configDISPLAY
🔐 secretANTHROPIC_API_KEY
🔐 secretOPENAI_API_KEY
🔐 secretGEMINI_API_KEY
🔐 secretUI_TARS_API_KEY
configUI_TARS_ENDPOINT
🔐 secretGOOGLE_API_KEY
configMASSGEN_LOG_BASE_DIR
🔐 secretLOGFIRE_READ_TOKEN
configMASSGEN_LOGFIRE_ENABLED
configMASSGEN_TUI_REPLAY_SPEED
🔐 secretAZURE_OPENAI_API_KEY
configAZURE_OPENAI_ENDPOINT
🔐 secretCLAUDE_CODE_API_KEY
configCLAUDE_CODE_GIT_BASH_PATH
configMASSGEN_LOG_BACKENDS
configMASSGEN_CLAUDE_CODE_DEBUG
// 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

47/47 tools missing one or more hints — checkpoint (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); create_task_plan (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); clear_task_plan (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +44 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.

Destructive tools are labelled

3 tools perform destructive updates without destructiveHint — clear_task_plan deletes at line 841 (plan_file.unlink()); delete_file deletes at line 534 (target_path.unlink()); delete_files_batch deletes at line 646 (item.unlink())

Add destructiveHint:true to any tool whose handler calls .delete(), .upsert(), .update(), unlink, rm, DELETE, DROP, REPLACE INTO, or any operation that overwrites existing data.

Readable source code

20 files are minified or bundled, which is usually build output rather than concealment

Ship unminified, readable source.

Secrets not logged

9 secret values sent to logger.info/logger.warning/logger.error

Redact or omit secret values from log output.

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/massgen/massgen?variant=verified)](https://m8ven.ai/mcp/massgen/massgen)
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commit: 007bd8579298d7dc3ff2a43c378e27a284902f22
code hash: f3508b447f8bb992f18363aa845870305f8d4fe927f1a9d048098b28ae6d903a
verified: 9/2/2026, 9:11:04 PM
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