Cortex

Skill · PyPI · ★ 75 · graded 2026-10-19Source linked

Cross-platform persistent memory MCP for Codex, Gemini CLI, Claude Code, and other local MCP hosts. 36 cited neuroscience mechanisms, local-first SQLite/PostgreSQL, hybrid retrieval, decay-based consolidation, and reproducible benchmarks. Claude adds optional automatic lifecycle hooks.

No outside reports on file

Cortex reads local files; 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.

Was this verdict for Cortex helpful?

What it can access

Local filesReads local filesNOTED
Command executionNo shell command runner notedLOW
Network reachLocal or standard API callsLOW
CredentialsNo API token requiredLOW
Package sourcePyPI (hypermnesia-mcp)PUBLIC

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

Install

uvx hypermnesia-mcp

All setup options ↓

Check this skill Watch it in my stack Compare Add to allowlist README badge View project

About Cortex

Cortex is an agent skill focused on Developer tools and Data & databases: Cross-platform persistent memory MCP for Codex, Gemini CLI, Claude Code, and other local MCP hosts. 36 cited neuroscience mechanisms, local-first SQLite/PostgreSQL, hybrid retrieval, decay-based consolidation, and reproducible benchmarks. Claude adds optional automatic lifecycle hooks.

It is published on PyPI as hypermnesia-mcp and hosted on GitHub at cdeust/Cortex (75 GitHub stars). Based on its public metadata, its operational scope includes: reads local files.

Setup

These use the package this listing points to. Check the project’s own instructions before running anything.

PyPI command

uvx hypermnesia-mcp

PyPI (pip) command

pip install hypermnesia-mcp

Why this grade

CC — Moderate risk signals

Signal-based grade (2/7 points): public source code. This reflects adoption and transparency, not a code review.

Popularity and upkeep

26/100

GitHub stars: 75
Listing last refreshed: 2026-10-29

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 file read access: Reads local documents or database files. Point it only at the specific files needed for the task so sensitive workspace files remain out of reach.
Dependency & version pinning: Distributed via PyPI (hypermnesia-mcp). 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 Cortex?

Run uvx hypermnesia-mcp (or pip install hypermnesia-mcp) in your terminal. Full setup docs and environment variables are in github.com/cdeust/Cortex.

Are there security reports about Cortex?

No reports found for this package in our research (last checked 2026-10-29). Cortex currently holds Grade C (Moderate risk signals) based on public adoption and transparency signals. Review the permissions and source repository before granting access to local files, shell commands, or API keys.

Is Cortex actively maintained?

Cortex has 75 GitHub stars. Our directory data was last refreshed on 2026-10-29. Check recent commit activity, release tags, and open issues at github.com/cdeust/Cortex before pinning it in production.

What are alternatives to Cortex?

You can compare Cortex side by side with other SQLite, Memory skills in the Related tools section on this page, or use the Compare tool on AgentArmorHQ.

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

GitHub README Markdown:

markdown

[![AgentArmorHQ Risk Grade for Cortex](https://agentarmorhq.com/api/badge/cdeust-cortex)](https://agentarmorhq.com/skills/cdeust-cortex)

HTML embed:

html

<a href="https://agentarmorhq.com/skills/cdeust-cortex"><img src="https://agentarmorhq.com/api/badge/cdeust-cortex" alt="AgentArmorHQ Risk Grade for Cortex" height="20" /></a>

Terminal check:

terminal

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

Share with your security lead

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

### AgentArmorHQ Security Review Memo: Cortex
- **Listing URL:** https://agentarmorhq.com/skills/cdeust-cortex
- **Type:** AI agent skill
- **Risk Grade:** Grade C (Moderate risk signals)
- **Outside Security Advisories on File:** 0
- **Public Adoption:** 75 GitHub stars

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

#### Recommended Hardened Setup
- **Command:** `uvx hypermnesia-mcp`
- **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: AI agent skill
Publisher: cdeust
Source code: github.com/cdeust/Cortex
Install command: pip install hypermnesia-mcp
Est. context load: ~97 tokens idle · ~1.6k tokens when active (on-demand skill)
Popularity: 75 GitHub stars
Last updated: 2026-10-29
Last graded: 2026-10-19

Community

Discussions for Cortex

Ask questions or share configuration tips. Governed by our Community Rules & Terms.

No posts match this filter yet.

Be the first to ask a question or share a working tip.

Was this listing for Cortex helpful?

Check before you install, in Claude

Your assistant answers Block, Review or No known issues for any package before it installs it.

Get this check inside Claude