experimental-ash

MCP server · npm · graded 2026-10-20Source linked

Filesystem-first framework for durable backend AI agents that run anywhere.

No outside reports on file

experimental-ash reads and writes local folders; restrict its folder reach, network access, and credentials before installing.

Based on public adoption and transparency signals as of Oct 19, 2026. Our opinion, not a code audit or security guarantee.

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What it can access

Local filesReads & writes local foldersREVIEW
Command executionNo shell command runner notedLOW
Network reachLocal or standard API callsLOW
CredentialsNo API token requiredLOW
Package sourcenpm (experimental-ash)PUBLIC

Inferred from this listing’s public package details and description. Check the project’s source before installing.

Install

npx -y experimental-ash

All setup options ↓

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About Experimental Ash

Experimental Ash is an MCP server focused on Files & documents: Filesystem-first framework for durable backend AI agents that run anywhere.

It is published on npm as experimental-ash (7,670 weekly npm downloads). Based on its public metadata, its operational scope includes: reads & writes local folders.

Setup

Check these steps against the project’s own instructions before running anything.

Run experimental-ash with --ignore-scripts in claude_desktop_config.json or .cursor/mcp.json:

json

{
  "mcpServers": {
    "experimental-ash": {
      "command": "npx",
      "args": ["-y", "--ignore-scripts", "experimental-ash"]
    }
  }
}

Why this grade

DD — High risk signals

Signal-based grade (1/7 points): no public source code found. This reflects adoption and transparency, not a code review.

Popularity and upkeep

29/100

Weekly npm downloads: 8k
Listing last refreshed: 2026-10-28

These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.

Security reports

No reports found for this package in our research (last checked 2026-10-29).

Check a specific version →

Risks to watch for

Local folder write access: Can create, edit, or delete files on disk. Restrict its working directory to a dedicated project folder and never mount home or credential directories.
Dependency & version pinning: Distributed via npm (experimental-ash). Pin an exact release version or commit SHA rather than floating tags so upstream updates are reviewed first.

How to lower the risk

Least-privilege permissions

Give it access only to the specific folders, accounts or projects it needs, never your whole drive or admin account.
Use a separate, limited API key or login just for this tool so you can switch it off without affecting anything else.

Network isolation

Run it on a work computer or sandbox account, not one holding personal or company-sensitive data.
If your IT team can, limit which websites and services it is allowed to contact.

Monitoring

Check its activity history or logs weekly at first, and look at what it changed or sent.
Turn on alerts for new logins or unusual usage on any account it connects to.

Red flags to watch for

It asks for more access than its job requires, or prompts you to paste passwords.
It suddenly updates with new owners, or starts contacting unfamiliar websites.

Questions

How do I install Experimental Ash?

Run npx -y experimental-ash in your terminal, or add the server entry to your claude_desktop_config.json or .cursor/mcp.json as shown in the Setup section on this page.

Are there security reports about Experimental Ash?

No reports found for this package in our research (last checked 2026-10-29). Experimental Ash currently holds Grade D (High risk signals) based on public adoption and transparency signals. Key risk areas to watch include local folder write access:, dependency & version pinning:.

Is Experimental Ash actively maintained?

Experimental Ash has 8k weekly npm downloads. Our directory data was last refreshed on 2026-10-28. Check recent commit activity, release tags, and open issues before pinning it in production.

What are alternatives to Experimental Ash?

You can compare Experimental Ash side by side with other Filesystem MCP servers in the Related tools section on this page, or use the Compare tool on AgentArmorHQ.

Maintain or use Experimental Ash? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.

AgentArmorHQ Risk Grade D for Experimental Ash

GitHub README Markdown:

markdown

[![AgentArmorHQ Risk Grade for Experimental Ash](https://agentarmorhq.com/api/badge/experimental-ash)](https://agentarmorhq.com/skills/experimental-ash)

HTML embed:

html

<a href="https://agentarmorhq.com/skills/experimental-ash"><img src="https://agentarmorhq.com/api/badge/experimental-ash" alt="AgentArmorHQ Risk Grade for Experimental Ash" height="20" /></a>

Terminal check:

terminal

curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "experimental-ash"

Share with your security lead

Need sign-off to use experimental-ash? Copy this note for Slack, a ticket or a pull request.

### AgentArmorHQ Security Review Memo: experimental-ash
- **Listing URL:** https://agentarmorhq.com/skills/experimental-ash
- **Type:** App connector
- **Risk Grade:** Grade D (High risk signals)
- **Outside Security Advisories on File:** 0

#### Permission & Blast-Radius Signals
- **Local files:** Reads & writes local folders
- **Command execution:** No shell command runner noted
- **Network reach:** Local or standard API calls
- **Credentials:** No API token required
- **Package source:** npm (experimental-ash)

#### Recommended Hardened Setup
- **Command:** `npx -y --ignore-scripts experimental-ash`
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.

_Based on public adoption and transparency signals as of Oct 19, 2026. Our opinion, not a code audit or security guarantee._

Key facts

Type: App connector
Install command: npm install experimental-ash
Est. context load: ~1k tokens / turn (~6 tool schemas, 0.5% of 200k context)
Popularity: 8k weekly npm downloads
Last updated: 2026-10-28
Last graded: 2026-10-20

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