What is test-lnar-hosting-postgres?

A locally running MCP server configured for the arlet-python-postgres project. MCP is a way for an agent to connect to external tools or data sources, and PostgreSQL is a database system.

Use it as the configured test server for arlet-python-postgres. The available jobs beyond starting it are not specified here.

The description only identifies the server and its project and package; it does not explain what database operations it provides.

test-lnar-hosting-postgres — MCP server by NexaScience

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add mcp/nexascience/arlet-python-postgres/test-lnar-hosting-postgres

Clone the repo

git clone --depth 1 https://github.com/NexaScience/arlet-python-postgres

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin unknown No closer match found in the catalogue.

Security

Grade A, and why

test-lnar-hosting-postgres scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

listed in the official MCP registry · 8 lines

The source is not reproduced here

No licence file

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

yesterday First seen · 8 lines scan A e4c1958a1c5a

Subscribe to this mod's changes

test-lnar-hosting-postgres is an MCP server published in the GitHub repository NexaScience/arlet-python-postgres (0 stars, last pushed 2mo ago), with no licence file. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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