Slash Command

Summon

Summon the egregore to autonomously process work items through the full development lifecycle. Runs indefinitely by default until dismissed.

Type: Slash Command
Repository: athola/claude-night-market
GitHub stars: 339
License: MIT
Repo last updated: Sep 24, 2026
Source file: plugins/egregore/commands/summon.md

What Summon is

Summon is a slash command published in the athola/claude-night-market repository on GitHub, which has about 339 stars. The repository describes itself as: “23 Claude Code plugins: TDD enforcement hooks, git/PR workflows, spec-driven development, code review, project lifecycle, fix-from-error, maintenance automation, context optimization, research, and multi-LLM delegation. 186 skills, 128 commands, 54 agents.”

A slash command is a reusable prompt saved as a markdown file and run by typing its name after a slash. In Claude Code, custom commands have been merged into skills: a file in .claude/commands/ and a skill folder in .claude/skills/ both create the same kind of command, and existing command files keep working.

Summon gives you a repeatable way to run the same instructions without retyping them, optionally with arguments.

How to install Summon

Claude Code

Download summon.md from the repository.
Save it to ~/.claude/commands/ (all projects) or .claude/commands/ (one project). As a skill, you can instead save it as ~/.claude/skills/<name>/SKILL.md.
Run it by typing / followed by its name.

Claude Cowork

Turn the command into a skill: create a folder with the file saved as SKILL.md and zip it.
In Customize → Skills, click +, then upload the ZIP.
Run it from any task with / and the skill name.

New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.

Inside the source file

An excerpt from plugins/egregore/commands/summon.md, shared under the repository's MIT license. Read the full file on GitHub.

Launch the egregore to autonomously process work items through planning, implementation, testing, and PR creation. By default the egregore runs indefinitely, scanning for new work after completing its current manifest. Use /egregore:dismiss to stop it.

Invoke Skill(egregore:summon), which carries the orchestration loop, the manifest mode, the pipeline mapping, the context-overflow and token-budget protocols, the progress monitoring and the failure handling.

When To Use

You have one or more issues or tasks to process without manual intervention.
You want to run a multi-hour or multi-day development pipeline overnight or over a weekend.
You want the agent to self-recover from crashes and rate limits via the watchdog.
You want continuous autonomous processing that finds and handles new work as it appears.

When NOT To Use

For quick, single-file changes. Just do them directly.
When you need tight human-in-the-loop review at every step. Use normal Claude sessions instead.
On repositories you do not trust the agent to modify. Egregore creates branches and opens PRs autonomously.

Usage

From a prompt:

/egregore:summon "Refactor the auth module to use JWT"

From GitHub issues by number:

/egregore:summon --issues 42,43,44

From GitHub issues by label:

/egregore:summon --issues-label "egregore"

Bounded mode (stops when time window expires):

/egregore:summon --bounded --window 2d --issues 42,43,44

Options

The egregore runs indefinitely by default. Pass --bounded to set a hard time limit. In both modes, the egregore scans for new work after completing all current items. The only difference is that bounded mode exits when the time window expires.

Stopping the Egregore

The egregore does not stop on its own. To shut it down:

/egregore:dismiss

This pauses all active work items, saves state, and removes the pidfile. You can resume later with another /egregore:summon.

Before you install

Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
Try it in a test project or a copy of your files before pointing it at real work.
Pin the version you tested, and review changes before updating.
Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.

FAQ

What is Summon?

Summon is a slash command for Claude Code and Claude Cowork from the athola/claude-night-market repository on GitHub. Summon the egregore to autonomously process work items through the full development lifecycle. Runs indefinitely by default until dismissed.

How do I install Summon in Claude Code?

Download summon.md from the repository. Save it to ~/.claude/commands/ (all projects) or .claude/commands/ (one project). As a skill, you can instead save it as ~/.claude/skills/<name>/SKILL.md. Run it by typing / followed by its name.

Can I use Summon in Claude Cowork?

Turn the command into a skill: create a folder with the file saved as SKILL.md and zip it. In Customize → Skills, click +, then upload the ZIP. Run it from any task with / and the skill name.

Is Summon safe to install?

It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.

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Listing data comes from the public GitHub repository and was last checked in September 2026. Excerpts are © their authors and shared under MIT. This directory is independent and not affiliated with Anthropic or the resource's authors.