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Cortex Message

Category: General  ·  Sub-category: general-misc  ·  Last updated:
Message other Claude sessions by name, and spawn/coordinate detached background Claude agents. Use when the user asks to talk to another Claude, have two sessions message each other, delegate work to a worker/sub agent, run several Claudes in parallel, build a team of agents, or check on / reply to a running agent. Register a name, then send and receive messages by name; incoming messages are delivered to you automatically.

From the source SKILL.md

Cortex turns Claude sessions into a named async message mesh. Once a session is registered, any node can cortex-send it by name and the message is delivered automatically — even an idle session is woken with the message in context. No polling, no inbox loop, no background command, no re-arming; the plugin's hooks handle it.

What this skill does

Cortex Message is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/cortex-message/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user asks to talk to another Claude, have two sessions message each other, delegate work to a worker/sub agent, run several Claudes in parallel, build a team of agents, or check on / reply to a running agent. Register a name, then send and receive messages by name; incoming messages are delivered to you automatically.

Who uses this skill

The Cortex Message Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/cortex-message
curl -L https://claudskills.com/skills/cortex-message/SKILL.md \
  -o ~/.claude/skills/cortex-message/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/cortex-message/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/cortex-message/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\cortex-message\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Attribution & license

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Browse all General skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all General skills → Top 100 skills
Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills.  ·  What's New  ·  Install guide  ·  About  ·  llms.txt

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