---
title: "summon"
description: "Cross-vendor sub-agent broker with structured envelopes, council, governed deliberation, and authenticated local browser surfaces; optional MCP facade and provider drivers (CLI + openai-compat + arkcli)."
canonical: https://agentpluginsdirectory.com/plugins/summon
last-updated: 2026-09-21
---

# summon
Cross-vendor sub-agent broker with structured envelopes, council, governed deliberation, and authenticated local browser surfaces; optional MCP facade and provider drivers (CLI + openai-compat + arkcli).
- Slug: summon
- Publisher: Nafjan
- Repository: https://github.com/Nafjan/summon
- Manifest: plugin.json
- Version: 3.4.0
- License: MIT
- Category (editorial): agent-tooling
- Skills: 3 (council, deliberate, summon)
- MCP servers: 1 (summon)
- Stars: 4
- Repository created: 2026-07-11
- Repository last pushed: 2026-09-02
- Publisher type: User
- Listing: https://agentpluginsdirectory.com/plugins/summon
- Schema: https://agent-plugins.org/schemas/1.0.0/plugin.schema.json

## What summon does, in the publisher's words

Summon

Summon any AI, from any CLI. One skill, every model as a sub-agent.

Install: npx skills add Nafjan/summon, then ask your agent to use it.

- Coding CLIs: Claude Code, Codex, Cursor CLI, Gemini CLI, Kimi, Antigravity, and ArkCLI.
- T3 Code: install Summon into the Claude, Codex, and Cursor skill roots T3 discovers (python install.py --profile t3). Not a native T3 plugin; see the T3 Code setup guide.
- AI IDEs: Cursor, Antigravity, or VS Code with an agent extension. The skill installs as a slash command, or the agent invokes the dispatcher.
- Desktop agent apps: the Claude app and the ChatGPT app (formerly Codex), whose agent modes can run the dispatcher and read the skill.
- A plain terminal, where you drive it yourself.

From the project README, punctuation lightly normalized. Full text: https://raw.githubusercontent.com/Nafjan/summon/HEAD/README.md

## Skills

- council: Use for open-ended, vendor-diverse judgment with independent positions, cross-examination, and a chaired synthesis; promote a result to deliberate only after a human fixes the options and policy.
- deliberate: Use for governed fixed-option decisions that require named seats, fixed quorum, hard attempt/deadline bounds, durable replay, or explicit human approval/cancel boundaries.
- summon: Summon another AI CLI, Claude, Codex, Cursor, Gemini, Kimi, Antigravity, ArkCLI, OpenCode, or the experimental native ZCode preview, as a sub-agent to run a task, in parallel when useful. Use whenever the user names an agent or sub-agent to run, asks to delegate work to another AI or a specific m…

Descriptions come from the frontmatter of each SKILL.md, punctuation lightly normalized.

## MCP servers

- summon: transport: stdio; command: python ./skills/summon/scripts/mcp_server.py

Read from the plugin's own mcp.json. Environment variable names only, never values.