gerbil-mcp

Item: gerbil-mcp
Rating: 30
Author: M8ven

Provides AI assistants with live access to a Gerbil Scheme environment to evaluate expressions, look up module exports, and check syntax. It enables real-time interaction with the gxi runtime for macro expansion and symbol searching.

→ ober/gerbil-mcp · listed on glama

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// key findings

⚠️

Tool annotations don’t match behaviour

25 read-only tools perform write/delete/exec — gerbil_build_conflict_check (line 20: execSync(); gerbil_build_linkage_diagnostic (line 32: ldPattern.exec(content)); gerbil_build_ss_audit (line 80: callPattern.exec(effective))

⚠️

Known vulnerabilities in dependencies: 3 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.

// known CVEs in dependencies3 high

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

high@modelcontextprotocol/sdk@1.12.0GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.12.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.0GHSA-w48q-cv73-mx4w

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

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configGERBIL_HOME— /opt/gerbil Gerbil installation directory (used for module listing)

configGERBIL_MCP_GERBIL_PATH— gerbil in PATH, then /opt/gerbil/bin/gerbil Path to the gerbil CLI binary (used for project-wide testing)

configGERBIL_MCP_GXC_PATH— gxc in PATH, then /opt/gerbil/bin/gxc Path to the gxc compiler binary

configGERBIL_MCP_GXI_PATH— e =/opt/gerbil/bin/gxi \

configGERBIL_MCP_GXPKG_PATH— gxpkg in PATH, then /opt/gerbil/bin/gxpkg Path to the gxpkg package manager binary

configGERBIL_PATH

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// 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 Score](https://m8ven.ai/badge/mcp/ober-gerbil-mcp-8t4ku9)](https://m8ven.ai/mcp/ober-gerbil-mcp-8t4ku9)

commit: 81335a52c90e0f6cd4e80006f475c5e5f45cbd53

code hash: 54e277672672ba139e572da29d1901b7907b440469efff7a717d1a31d5b3b33b

verified: 5/27/2026, 11:17:20 AM

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