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second-brain

v0.3.4

Go-to-market ContentPack: offers, positioning, messaging pillars, ICPs, campaigns, battle cards, and proof points.

CodexClaude CodeAgent Plugins5 Skills

By Rick HightowerLicense: MIT0 GitHub starsUpdated 2 months ago

Directory evidence

Runtimes
Codex, Claude Code, and Agent Plugins
Parsed components
5 skill or MCP entries
Source updated
Aug 22, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install second-brain for Codex and Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install second-brain-6@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

Compatibility: the page URL and API slug “second-brain-6” remain stable.

  • Codex: Legacy selector second-brain-6@agent-plugin-marketplace remains documented for migration; install from source for this runtime.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Codex has another source with the same manifest name. This directory does not invent numbered install aliases; use the publisher's catalog or inspect the source manually for that runtime.

Get the source manually
git clone https://github.com/SpillwaveSolutions/gtm-positioning

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The repository root is the plugin root.

Plugin files

second-brain/
├── .codex-plugin/plugin.json
├── .claude-plugin/plugin.json
├── plugin.json
├── skills/gtm-capture/SKILL.md
├── skills/gtm-doctor/SKILL.md
├── skills/gtm-init/SKILL.md
├── skills/gtm-pack/SKILL.md
└── skills/gtm-session/SKILL.md

Included Skills5

gtm-captureskills/gtm-capture/SKILL.md

Capture a GTM Positioning noun into the shared second brain via the deterministic write helper.

gtm-doctorskills/gtm-doctor/SKILL.md

Health-check the GTM Positioning catalogs and report empty indexes or missing schemas.

gtm-initskills/gtm-init/SKILL.md

Scaffold the GTM Positioning catalogs in a shared second-brain bundle.

gtm-packskills/gtm-pack/SKILL.md

Build a bounded ContextPack from a GTM Positioning root concept (default 2 hops, 20 nodes).

gtm-sessionskills/gtm-session/SKILL.md

Open or close an isolated second-brain write session (worktree + PR). Use before writing when multiple agents share one knowledge remote.

Plugin manifests3

.codex-plugin/plugin.json
{
  "name": "second-brain",
  "hooks": "./hooks/codex-hooks.json"
}
.claude-plugin/plugin.json
{
  "name": "gtm-positioning",
  "version": "0.3.4",
  "description": "Go-to-market ContentPack: offers, positioning, messaging pillars, ICPs, campaigns, battle cards, and proof points.",
  "author": {
    "name": "Rick Hightower",
    "url": "https://github.com/RichardHightower"
  },
  "homepage": "https://github.com/SpillwaveSolutions/gtm-positioning",
  "repository": "https://github.com/SpillwaveSolutions/gtm-positioning",
  "license": "MIT",
  "keywords": [
    "gtm",
    "positioning",
    "offer",
    "messaging",
    "icp",
    "campaign",
    "claude-code",
    "grok-build",
    "codex",
    "okf",
    "content-pack",
    "worklog",
    "wiki-ticket-sdd"
  ]
}
plugin.json
{
  "$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
  "name": "gtm-positioning",
  "version": "0.3.4",
  "description": "Go-to-market ContentPack: offers, positioning, messaging, ICPs, campaigns, battle cards.",
  "author": {
    "name": "Rick Hightower",
    "url": "https://github.com/RichardHightower"
  },
  "homepage": "https://github.com/SpillwaveSolutions/gtm-positioning",
  "repository": "https://github.com/SpillwaveSolutions/gtm-positioning",
  "license": "MIT",
  "keywords": [
    "gtm",
    "positioning",
    "second-brain",
    "agent-plugins",
    "cursor",
    "worklog",
    "wiki-ticket-sdd"
  ]
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[second-brain on Agent Plugins Marketplace](https://pluginsmp.com/plugins/second-brain-6)