Mycobrain MCP Server
@mycobrain/mcp-server
npm
v1.2.9
Published by @mycobrain — no publish provenance, so origin is unverified, but the source is public: the repository link below is self-declared yet readable, so you can inspect the code before adopting it.
Self-hosted memory layer for AI agents — MCP server backed by Postgres + pgvector + knowledge graph
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 7 = 93. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −6 | capability blast radius (high) — client exposure if the model is manipulated |
| −1 | publisher verification (public source) — no provenance, but the source is public and inspectable |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 8
high Shell/command execution in server code (dist/doctor-live.js)MTC-SRC-002
In the server's implementation (`dist/doctor-live.js:8`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: spawnSync } from "node:child_process"; export const DEFAULT_OLLAMA_BASE_URL = "http://localhost:11434"; export function
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server dist/doctor-live.js
high Shell/command execution in server code (dist/guided-install.js)MTC-SRC-002
In the server's implementation (`dist/guided-install.js:25`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: spawnSync } from "node:child_process"; import { promises as fs, realpathSync } from "node:fs"; import { homedir, platfo
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server dist/guided-install.js
high Shell/command execution in server code (dist/ingest-cli.js)MTC-SRC-002
In the server's implementation (`dist/ingest-cli.js:24`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: ecFileSync } from "node:child_process"; import { canonicalizeAgentContext } from "./agent-identity.js"; import { resolve
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server dist/ingest-cli.js
high Shell/command execution in server code (dist/onboard.js)MTC-SRC-002
In the server's implementation (`dist/onboard.js:22`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: ecFileSync } from "node:child_process"; import { createInterface } from "node:readline"; import { canonicalizeAgentConte
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server dist/onboard.js
high Shell/command execution in server code (dist/preflight.js)MTC-SRC-002
In the server's implementation (`dist/preflight.js:9`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: spawnSync } from "node:child_process"; import net from "node:net"; export const realProbes = { hasCommand(cmd) {
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server dist/preflight.js
medium Hardcoded egress to an external endpoint (dist/reranker.js)MTC-SRC-003
In the server's implementation (`dist/reranker.js:42`): A hardcoded outbound call to a fixed external host inside server code is a classic exfiltration/telemetry channel — especially paired with reads of local data. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: const response = await fetch("https://api.cohere.com/v2/rerank", { method: "POST", headers: {
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server dist/reranker.js
medium Dynamic module load from a non-literal (dist/server-factory.js)MTC-SRC-005
In the server's implementation (`dist/server-factory.js:11`): Loading a module chosen at runtime (from a variable) can pull in and run attacker-influenced code paths. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: "./logger.js"), import(modulePath), ])); const auth = authMod.resolveAuth({ apiKey: args.api_key
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server dist/server-factory.js
low Shell/command execution in packaging/dev tooling (dist/install.js)MTC-SRC-002
In a packaging/dev/install script (shipped, but not the server runtime) (`dist/install.js:36`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: spawnSync } from "node:child_process"; import { AGENT_INSTRUCTIONS, DEFAULT_SERVER_NAME } from "./agent-instructions.js
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server dist/install.js
Tools 13
Each tool and what it can reach — statically extracted from the published source.
brain_annotateno sensitive capabilitybrain_context_packno sensitive capabilitybrain_get_relatedno sensitive capabilitybrain_ingestno sensitive capabilitybrain_neighborsno sensitive capabilitybrain_propose_factno sensitive capabilitybrain_recall_memoryno sensitive capabilitybrain_save_memoryno sensitive capabilitybrain_searchno sensitive capabilitybrain_self_checkno sensitive capability
Show 3 more tools ↓
brain_set_modeno sensitive capabilitybrain_statsno sensitive capabilitybrain_whyno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (13 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 1
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v1.2.9 latest |
A 93/100 | 8 | 1.13.0 | 2026-09-07 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
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