M

metabrain

MCP server for agent memory: SQLite, zero dependencies, tools learn/recall/verdict/hypotheses/start_brief/stats/capture_error, patterns graduating to hypotheses then preferences; `pip install "metabrain[mcp]"` then `metabrain-mcp --db PATH`

ariaxhan/metabrain · v1.1.2 · Development & Workflow

ariaxhancaution
InstallSourceClaim this plugin
59Follow0

Trust Score

59

Security

59

Surfaces

1

What is metabrain?

metabrain is a published development & workflow plugin for AI coding agents in the gemini-cli ecosystem, developed by ariaxhan and distributed through the HOL AI plugin registry. MCP server for agent memory: SQLite, zero dependencies, tools learn/recall/verdict/hypotheses/start_brief/stats/capture_error, patterns graduating to hypotheses then preferences; `pip install "metabrain[mcp]"` then `metabrain-mcp --db PATH`

Canonical slug
ariaxhan/metabrain
Version
v1.1.2 · updated Sep 15, 2026

Trust & Reputation

HOL Trust Score
59

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
64pts
Maintenance
30pts
MCP Posture
100pts
Plugin Security
59pts
Provenance
70pts
Publisher Quality
75pts

Registry Snapshot

Publisher verification
No
Marketplace source
Unknown
Scanner
Broker fallback
Safety label
caution
Digest verified
Yes

Trust & reputation

Trust & Reputation

HOL Trust Score
59

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
64pts
Maintenance
30pts
MCP Posture
100pts
Plugin Security
59pts
Provenance
70pts
Publisher Quality
75pts

Provenance

Plugin root
.
Source repo
https://github.com/ariaxhan/metabrain
Source commit
aca136db39bd…
Publisher verified
No
Owner verified
Not owner verified

Continuous scanner CI not detected

This plugin remains listed. Its overall trust score is reduced by 10% because security checks are not maintained in the source repository's CI.

Optional: maintain the scanner in the source repository's CI to receive the full trust score. Listing does not require that change.

Verified badge not detected

Add the HOL verified badge to the repository README to score +2% trust. Plugin owners can open that pull request from Guard Plugins.

Security Posture

caution
Safety label
59
Security score
0
High findings
Provider
registry-broker-fallback
Grade
F · caution
Version
Unknown
cisco-skill-scanner: not_applicable

Findings

mediumpublishabilitypublishability.link.missing.websiteURL

websiteURL should be present for marketplace readiness.

mediumpublishabilitypublishability.link.missing.privacyPolicyURL

privacyPolicyURL should be present for marketplace readiness.

mediumpublishabilitypublishability.link.missing.termsOfServiceURL

termsOfServiceURL should be present for marketplace readiness.

lowoperational-securitysupply-chain.lockfile-missing

Repository snapshot does not include a lockfile.

metabrain — Frequently asked questions

What is metabrain?
metabrain is an AI plugin in the HOL registry. MCP server for agent memory: SQLite, zero dependencies, tools learn/recall/verdict/hypotheses/start_brief/stats/capture_error, patterns graduating to hypotheses then preferences; `pip install "metabrain[mcp]"` then `metabrain-mcp --db PATH`
How do I install metabrain?
Install metabrain in your harness: Antigravity CLI — npx skills add ariaxhan/metabrain; MCP — git clone https://github.com/ariaxhan/metabrain; Any agent — npx skills add ariaxhan/metabrain. Full step-by-step guidance is on the HOL plugin page.
How do I install metabrain in Antigravity CLI?
To install metabrain in Antigravity CLI, start with npx skills add ariaxhan/metabrain. The complete step-by-step install guide for Antigravity CLI is on the HOL plugin page.
How do I install metabrain in MCP?
To install metabrain in MCP, start with git clone https://github.com/ariaxhan/metabrain. The complete step-by-step install guide for MCP is on the HOL plugin page.
Is metabrain free?
Pricing for metabrain is published on its HOL plugin page when the maker schedules a launch.
Who publishes metabrain?
metabrain is published by ariaxhan and listed on HOL.
Is metabrain available now?
metabrain availability is listed on its HOL plugin page.

Install Guidance

Install in Antigravity CLI

Install the bundled skills into Antigravity CLI with the open Skills CLI.

Skills CLI docs
  1. 1

    Install with the Skills CLI

    The open Skills CLI detects installed agents and installs this plugin's skills for Antigravity CLI.

    shell
  2. 2

    Restart and verify

    Start a new Antigravity CLI session and confirm the skill is listed before relying on it.

Plugin Manifest

{
  "name": "metabrain",
  "version": "1.1.2",
  "description": "Persistent memory for coding agents: store lessons in one SQLite file, recall them by search, and let the ones that prove out graduate into trusted preferences.",
  "contextFileName": "llms.txt",
  "mcpServers": "./.registry/mcp.json",
  "repository": "https://github.com/ariaxhan/metabrain",
  "interface": {
    "displayName": "metabrain",
    "developerName": "ariaxhan"
  },
  "registryIndexVersion": 5
}

Marketplace Source

Repo URL
https://github.com/ariaxhan/metabrain
Marketplace path
Unknown
Source path
.
Install policy
Unspecified

File Inventory

.codex-plugin/plugin.json

plugin-manifest

425 bytes

711e9d280ece7d6c…

.registry/mcp.json

mcp-config

117 bytes

189e4e494b8243d1…

gemini-extension.json

file

416 bytes

ea995df15bb723d5…

llms.txt

file

3,729 bytes

97e797a6b41074b9…

README.md

file

9,577 bytes

d30ada6e9287c6c7…