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summon

summon is a command for Claude Code from ANcpLua/ancplua-claude-plugins. It costs 45 tokens per session (420 once invoked), scanned A, original, MIT.

A project command that copies five Nihil workflow scripts into Claude Code's project workflow directory, making them available as slash commands.

In plain words
What is it for?
It installs the /nihil, /nihil-maat, /nihil-odin, /nihil-shiva, and /nihil-athena commands for the current project.
Why use it?
It works around Claude Code's lack of direct plugin support for dynamic workflows and puts the scripts where Claude Code can load them.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: reads .claude/ paths; mentions Claude Code.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the nihil plugin — 6 skills, 1 command, 5 agents shipped together

not rated 6repo 5d ago A scan 45 tokens original MIT

Good fit It installs the /nihil, /nihil-maat, /nihil-odin, /nihil-shiva, and /nihil-athena commands for the current project.

Compare 6 commands from other repositories ↓
View source ↗ ANcpLua/ancplua-claude-plugins
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add ANcpLua/ancplua-claude-plugins
Claude Code
/plugin install nihil

Made for: Claude Code.

Or install nihil, the plugin that ships this one along with the rest of its 6 skills, 1 command, 5 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for summon

README.md
[![agentmods](https://agentmods.dev/badge/commands/ancplua/ancplua-claude-plugins/summon/github.svg)](https://agentmods.dev/commands/ancplua/ancplua-claude-plugins/summon)
Your own site
<a href="https://agentmods.dev/commands/ancplua/ancplua-claude-plugins/summon"><img src="https://agentmods.dev/badge/commands/ancplua/ancplua-claude-plugins/summon/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for summon

Your own site · 80×15
<a href="https://agentmods.dev/commands/ancplua/ancplua-claude-plugins/summon"><img src="https://agentmods.dev/badge/commands/ancplua/ancplua-claude-plugins/summon.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 420 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00045 $0.00420
Opus 5.5 $0.00018 $0.00168
Sonnet 5.5 $0.00009 $0.00084
Haiku 4.5 $0.00005 $0.00042

Measured 16d ago against content hash 32a8a71b1a29, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

summon scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 16d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/nihil/commands/summon.md · 28 lines

What it actually says

Install the Nihil pantheon's dynamic-workflow scripts so they register as /<name> commands.

Plugins cannot register dynamic workflows directly — there is no workflows/ plugin component — so this command copies the bundled scripts into the one location Claude Code actually loads workflows from: .claude/workflows/.

Procedure

Copy the five workflow scripts into the project, creating the directory if needed:

mkdir -p "$CLAUDE_PROJECT_DIR/.claude/workflows"
cp -v "${CLAUDE_PLUGIN_ROOT}/workflows/"*.js "${CLAUDE_PLUGIN_ROOT}/workflows/jsconfig.json" "$CLAUDE_PROJECT_DIR/.claude/workflows/"

Then tell the user the pantheon is installed and available as /nihil, /nihil-maat, /nihil-odin, /nihil-shiva, and /nihil-athena. New workflow commands may require restarting the session to appear in / autocomplete.

Notes

  • This installs into the project. To make the workflows available in every project instead, copy into ~/.claude/workflows/.
  • The scripts are read-only by default. Only /nihil-shiva writes, and only when invoked with args.execute=true (private removals only); /nihil, /nihil-maat, /nihil-odin, and /nihil-athena never write. Public breaks and rewrites always require explicit human sign-off.
  • Re-running overwrites the installed copies with the plugin's current version.
  • jsconfig.json is copied alongside the scripts on purpose: it tells editors not to type-check the workflow dialect (top-level return/await, injected globals).
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 16d ago First seen · 28 lines · 45 tokens per session scan A 32a8a71b1a29

Subscribe to this mod's changes

summon is a command published in the GitHub repository ANcpLua/ancplua-claude-plugins (6 stars, last pushed 5d ago), licensed MIT. It adds 45 tokens to every session and 420 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-01.

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