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nika-author

nika-author is an agent for Claude Code from supernovae-st/nika-plugins. It costs 16 tokens per session (277 once invoked), scanned A, original, AGPL-3.0.

An authoring tool for creating and repairing .nika.yaml files, which describe repeatable AI workflows.

In plain words
What is it for?
Use it to create a new .nika.yaml workflow, fill in its required parts, or repair one that fails the nika check.
Why use it?
It turns a requested AI task into a workflow and checks the file until validation succeeds.

Agent for Claude Code

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

Part of the nika plugin — 4 skills, 6 commands, 3 agents, 1 MCP server shipped together

not rated 3repo changed 1mo ago A scan 16 tokens AGPL-3.0

Good fit Use it to create a new .nika.yaml workflow, fill in its required parts, or repair one that fails the nika check.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/supernovae-st/nika-plugins/nika-author
View source ↗ supernovae-st/nika-plugins docs.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-plugins

Made for: Claude Code.

Or install nika, the plugin that ships this one along with the rest of its 4 skills, 6 commands, 3 agents, 1 MCP server.

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-author

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

Your own site · 80×15
<a href="https://agentmods.dev/agents/supernovae-st/nika-plugins/nika-author"><img src="https://agentmods.dev/badge/agents/supernovae-st/nika-plugins/nika-author.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 277 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 unknown 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 $0.00016 $0.00277
Opus 5.5 $0.00006 $0.00111
Sonnet 5.5 $0.00003 $0.00055
Haiku 4.5 $0.00002 $0.00028

Measured 1mo ago against content hash d767efa05497, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

nika-author 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 1mo 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/agents/nika-author.md · 26 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

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. 1mo ago Changed · -85 lines · -80 tokens per session d767efa05497
  2. 2mo ago First seen · 111 lines · 96 tokens per session scan A adea8317296e

Subscribe to this mod's changes

nika-author is an agent published in the GitHub repository supernovae-st/nika-plugins (3 stars, last pushed 2d ago), licensed AGPL-3.0. It adds 16 tokens to every session and 277 once invoked, about $0.0001 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 2026-08-31.

Building agentsClaude CodeLLMagent-skillsai-agentscodexmcp
Related

nika-author compared with agents from other repositories

nika-author next to 6 agents from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
nika-authorsupernovae-st/nika-pluginsAgent32d agoAGPL-3.0A16Claude Code
cpp-revieweraffaan-m/ECCAgent302k4d agoMITA41Claude Code, Kiro
pixel-art-animation-reviewerAnastasiyaW/codex-claude-code-configAgent214yesterdayMITA140Claude Code
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wiki-maintainerbearlike/AssistantAgent43yesterdayMITA50Claude Code
astronomical-instrumentation-scientistK-Dense-AI/scientific-agentsAgent2451mo agoMITA78Claude Code
debuggerbostonaholic/rpikitAgent194d agoMITA28Claude Code