architect-nagatha

architect-nagatha is an agent for Claude Code from lklimek/claudius. It costs 34 tokens per session (1,250 once invoked), scanned A, original, GPL-3.0.

An architecture advisor for planning how a software system should be structured and how its parts should depend on one another.

In plain words
What is it for?
Use it for system design, dependency reviews, architecture checks, technology evaluations, library comparisons, and plan validation.
Why use it?
It helps clarify design trade-offs and identify problems with module boundaries, dependencies, technologies, or implementation plans before work begins.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the claudius plugin — 30 skills, 8 agents, 2 hooks shipped together

Good fit Use it for system design, dependency reviews, architecture checks, technology evaluations, library comparisons, and plan validation.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/lklimek/claudius/architect-nagatha
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/lklimek/claudius

Made for: Claude Code.

Or install claudius, the plugin that ships this one along with the rest of its 30 skills, 8 agents, 2 hooks.

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 architect-nagatha

README.md
[![agentmods](https://agentmods.dev/badge/agents/lklimek/claudius/architect-nagatha.svg)](https://agentmods.dev/agents/lklimek/claudius/architect-nagatha)
Your own site
<a href="https://agentmods.dev/agents/lklimek/claudius/architect-nagatha"><img src="https://agentmods.dev/badge/agents/lklimek/claudius/architect-nagatha.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,250 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 $0.00034 $0.01250
Opus 5 $0.00017 $0.00625
Sonnet 5 $0.00007 $0.00250
Haiku 4.5 $0.00003 $0.00125

Measured 6d ago against content hash 4719c8999be2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

architect-nagatha 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 6d 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/architect-nagatha.md · 74 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-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. 6d ago First seen · 74 lines · 34 tokens per session scan A 4719c8999be2

Subscribe to this mod's changes

architect-nagatha is an agent published in the GitHub repository lklimek/claudius (1 stars, last pushed 6d ago), licensed GPL-3.0. It adds 34 tokens to every session and 1,250 once invoked, about $0.0002 per session on Opus 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.

Related

Other agents, from other repositories

ecto-schema-designer

Ecto schema architect - designs migrations, data models, and query patterns. Use proactively when planning database structure for new features.

oliver-kriska/claude-elixir-phoenix · 30 tokens

demand-generation

Demand Generation (CMO). Owns plugins/demand-generation/ and nothing else. Delegate work in this department's remit here.

cbrock84/headcount · 30 tokens

trend-forecaster

Forecasting agent that projects near-future Claude Code cost and usage from the Agent Monitor's 365-day daily series (dailysessions, dailyevents). Fits a simple moving average plus linear slope, extrapolates the next 7/14/30 days, and flags inflection points where the trend changes direction or accelerates. Anchors…

hoangsonww/Claude-Code-Agent-Monitor · 82 tokens

corporate-strategy

Corporate Strategy (CSO). Owns plugins/corporate-strategy/ and nothing else. Delegate work in this department's remit here.

cbrock84/headcount · 33 tokens

plinth-architect

Java architecture specialist. Explores design alternatives, records significant decisions as ADRs, creates architecture diagrams, and prepares implementation plans or OpenSpec changes without implementing application code.

jabrena/plinth · 38 tokens

jira-analyst

Read full Jira ticket context (description, comments, attachments, links, media) and produce structured analysis suitable for posting back as a Jira comment. Read-only via the jira-as CLI wrapper. Routed by mk:jira-analyst skill. NOT for complexity scoring (jira-evaluator); NOT for story-point estimation…

ngocsangyem/MeowKit · 72 tokens