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MCP verified MIT Self-run

Zed Ejentum Mcp

mcp-ejentum-zed-ejentum-mcp · by ejentum

Zed editor extension wrapping the Ejentum MCP server. 8 cognitive operations (4 harnesses × dynamic + adaptive) available to Zed's agent.

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Install

$ agentstack add mcp-ejentum-zed-ejentum-mcp

✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ● Shell / process execution Used
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

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About

Ejentum context server for Zed

A Zed extension that exposes the Ejentum Reasoning Harness as an MCP context server. Ejentum is a library of 679 cognitive operations engineered in natural language, organized across four harnesses. Each harness call retrieves a task-matched scaffold rather than serving a fixed template: a named failure pattern, an executable procedure, suppression vectors that block the obvious shortcut, and a falsification test for self-verification. The assistant ingests the scaffold and writes from it, addressing attention decay, sycophantic collapse, hallucination drift, and reasoning decay.

Four tools are exposed:

  • reasoning for analytical, diagnostic, planning, multi-step questions
  • code for codegen, refactor, review, debugging, architecture choices
  • anti-deception when the prompt pressures the assistant to validate, certify, or soften an honest assessment
  • memory for sharpening an observation already formed about cross-turn drift

Install

Once published, install through the Zed extensions panel (cmd+shift+x / ctrl+shift+x).

Configure

Add your Ejentum API key to Zed settings:

{
  "context_servers": {
    "ejentum-mcp": {
      "settings": {
        "ejentum_api_key": "YOUR_KEY_HERE"
      }
    }
  }
}

Free tier (30-day trial, no card) at ejentum.com/pricing.

Hosted alternative

This extension bundles the ejentum-mcp npm package and runs it as a stdio subprocess inside Zed. If you'd rather avoid the local subprocess (no npx install, no Node version pinning), the same four harness tools are also hosted at https://api.ejentum.com/mcp with Bearer auth via your EJENTUM_API_KEY. Most Zed users will prefer this extension (tighter integration, no extra MCP-client configuration needed); the hosted endpoint is documented here for users who want to route through Zed's HTTP-capable MCP support, or who run Zed alongside other clients (n8n, custom HTTP-MCP agents) sharing one key.

License

MIT.

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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