Factsets MCP Server
factsets
npm
v0.2.0
Source verified
Published by joshua-auchincloss — publish provenance cryptographically ties this package to that repository. That is proof of origin, not an official vendor package.
An MCP server that provides a local, persistent, self-maintaining knowledge base for AI agents
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 − 6 = 94. 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 |
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 7
high Reads a sensitive credential path or dumps the environment (dist/main.js)MTC-SRC-006
In the server's implementation (`dist/main.js:48973`): Reading private keys / cloud credentials, or serializing the whole environment, is a sensitive-data source that becomes exfiltration when combined with any egress. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: "vitest.config", ".npmrc", ".yarnrc", "turbo.json", "nx.json", ".editorconfig", //
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/main.js
high Reads a sensitive credential path or dumps the environment (dist/runtime/categories.js)MTC-SRC-006
In the server's implementation (`dist/runtime/categories.js:372`): Reading private keys / cloud credentials, or serializing the whole environment, is a sensitive-data source that becomes exfiltration when combined with any egress. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: st.config", ".npmrc", ".yarnrc", "turbo.json", "nx.json", ".
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/runtime/categories.js
high Reads a sensitive credential path or dumps the environment (src/runtime/categories.ts)MTC-SRC-006
In the server's implementation (`src/runtime/categories.ts:393`): Reading private keys / cloud credentials, or serializing the whole environment, is a sensitive-data source that becomes exfiltration when combined with any egress. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: "vitest.config", ".npmrc", ".yarnrc", "turbo.json", "nx.json", ".editorconfig", // Python
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 src/runtime/categories.ts
high Dynamic code execution in server code (dist/main.js)MTC-SRC-001
In the server's implementation (`dist/main.js:2947`): Evaluating strings as code is the most direct RCE primitive; if any tool input reaches it, the server executes attacker-chosen code. 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 makeValidate = new Function(`${names_1.default.self}`, `${names_1.default.scope}`, sourceCode); const v
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/main.js
high Shell/command execution in server code (dist/commands/mcp-server.js)MTC-SRC-002
In the server's implementation (`dist/commands/mcp-server.js:4`): 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: rt { spawn } from "node:child_process"; import { createServer } from "node:http"; import { createConnection, runMigratio
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/commands/mcp-server.js
high Shell/command execution in server code (dist/main.js)MTC-SRC-002
In the server's implementation (`dist/main.js:39721`): 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: rt { spawn } from "node:child_process"; import { createServer } from "node:http"; // node_modules/drizzle-orm/better-sq
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/main.js
high Shell/command execution in server code (src/commands/mcp-server.ts)MTC-SRC-002
In the server's implementation (`src/commands/mcp-server.ts:4`): 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: ildProcess } from "node:child_process"; import { createServer, type Server } from "node:http"; import type { CommandHand
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 src/commands/mcp-server.ts
Tools 16
Each tool and what it can reach — statically extracted from the published source.
get_refresh_guideingests untrusted inputbuild_skill_contextno sensitive capabilitydelete_configno sensitive capabilityget_configno sensitive capabilityget_config_schemano sensitive capabilityget_execution_logno sensitive capabilityget_knowledge_contextno sensitive capabilityget_maintenance_reportno sensitive capabilityget_preference_promptno sensitive capabilityget_resourceno sensitive capability
Show 6 more tools ↓
get_skillno sensitive capabilityget_user_preferencesno sensitive capabilityinfer_preferenceno sensitive capabilitylist_configno sensitive capabilityreset_preferencesno sensitive capabilityset_configno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (16 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 |
|---|---|---|---|---|
v0.2.0 latest |
A 94/100 | 7 | 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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