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nika

nika is a plugin for Claude Code from supernovae-st/nika. Its manifest loads nothing; the 4 skills, 6 commands, 3 agents, 1 MCP server it bundles cost 302 tokens per session together, scanned A, original, AGPL-3.0.

A toolkit for creating, checking, explaining, tracing, and operating AI workflows stored as .nika.yaml files. It includes skills, subagents, rules, commands, and hooks for several coding-agent environments.

In plain words
What is it for?
Use it to create or inspect Nika workflow files, trace their behavior, check permissions, diagnose problems, and run them across supported agent surfaces.
Why use it?
It gives workflows a shared file format and provides checks and diagnostics across Cursor, Claude Code, and Codex.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest. Also seen: installed under .agents/ (shared by several agents).

not rated 95repo +1 changed 11d ago A scan tokens not measured AGPL-3.0

Good fit Use it to create or inspect Nika workflow files, trace their behavior, check permissions, diagnose problems, and run them across supported agent surfaces.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add supernovae-st/nika
/plugin install nika
View source ↗ supernovae-st/nika nika.sh
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/supernovae-st/nika

Made for: Claude Code.

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 nika

README.md
[![agentmods](https://agentmods.dev/badge/plugins/supernovae-st/nika/nika/github.svg)](https://agentmods.dev/plugins/supernovae-st/nika/nika)
Your own site
<a href="https://agentmods.dev/plugins/supernovae-st/nika/nika"><img src="https://agentmods.dev/badge/plugins/supernovae-st/nika/nika/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 nika

Your own site · 80×15
<a href="https://agentmods.dev/plugins/supernovae-st/nika/nika"><img src="https://agentmods.dev/badge/plugins/supernovae-st/nika/nika.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 4 skills, 6 commands, 3 agents, 1 MCP server cost 302 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Security

Grade A, and why

nika 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 11d 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.

.agents/plugins/nika/.claude-plugin/plugin.json · 22 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Contents

What it installs

The manifest is a name and a version. 4 skills, 6 commands, 3 agents, 1 MCP server travel with it, and installing the plugin installs all of them — 302 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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. 11d ago Changed 37075ccf1d85
  2. 18d ago Changed ed3024ea4362
  3. 25d ago Changed 1582f27d0dd4
  4. 1mo ago Changed 9731917d23d6
  5. 1mo ago Changed c0a4a9867073
  6. 1mo ago Changed b6dcb1f1fa0b
  7. 1mo ago Changed fb2913ecb77e
  8. 1mo ago Changed 5dab7db6b748
  9. 1mo ago Changed f0b814c1592b
  10. 1mo ago First seen · 22 lines scan A 9f1e220917ff

Subscribe to this mod's changes

nika is a plugin published in the GitHub repository supernovae-st/nika (95 stars, last pushed yesterday), licensed AGPL-3.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-08-30.

Building agentsDevOps and cloudRustautomationcliworkflow-engineyaml
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