sublinear-time-solver (ruvnet/sublinear-time-solver) is an MCP server listed on the M8ven Trust Index. It scores 52 out of 100, grade D. It declares 5 tools. No publisher has claimed this listing.

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D
Caution
52/100

sublinear-time-solver

Rust + WASM sublinear-time solver for asymmetric diagonally dominant systems. Exposes Neumann series, push, and hybrid random-walk algorithms with npm/npx CLI and Flow-Nexus HTTP streaming for swarm cost propagation and verification.

→ ruvnet/sublinear-time-solver· listed on github_topic

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

ruvnet

Source: github_topic

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Install from

GitHub

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.
🔐
You'll be asked for 2 credentials: FLOW_NEXUS_TOKEN, PERPLEXITY_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// tools this server exposes5 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.

reason

Perform psycho-symbolic reasoning on a given query

knowledge_graph_query

Query the knowledge graph

add_knowledge

Add new knowledge to the graph

analyze_reasoning_path

Analyze and explain a reasoning path

health_check

Check server health and status

// known CVEs in dependencies4 high3 low

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

high@modelcontextprotocol/sdk@1.18.1GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.18.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.18.1GHSA-w48q-cv73-mx4w

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

highws@8.14.2GHSA-3h5v-q93c-6h6q

ws affected by a DoS when handling a request with many HTTP headers

lowexpress@4.18.2GHSA-qw6h-vgh9-j6wx

express vulnerable to XSS via response.redirect()

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.
🔐 secretFLOW_NEXUS_TOKEN
configGOAP_EXTENSIONS
configGOAP_PLUGINS
configLOG_LEVEL
🔐 secretPERPLEXITY_API_KEY
// 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

5/5 tools missing one or more hints — reason (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); knowledge_graph_query (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); add_knowledge (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +2 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

2/5 tools referenced in tests (40%)

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

No eval / new Function

4 eval() or new Function() calls — dynamic code execution

Replace eval / Function with explicit parsing or safer alternatives.

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.

Secrets not logged

7 secret values sent to console.log

Redact or omit secret values from log output.

Production dependencies are patched

0 critical, 4 high severity in production deps — @modelcontextprotocol/sdk@1.18.1 (high), @modelcontextprotocol/sdk@1.18.1 (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 7 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/ruvnet/sublinear-time-solver?variant=verified)](https://m8ven.ai/mcp/ruvnet/sublinear-time-solver)
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commit: 47804fc5ca495d4fd608866fdb1e0960b34bffbf
code hash: 6ff5afe8aaf0930cd9886980684c487e200d512b8c4833748b7c0b118ee44077
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