arch-search

arch-search is a skill for Claude Code, Codex from 10CG/aria-plugin. It costs 44 tokens per session (1,118 once invoked), scanned A, original, no licence file.

An architecture-document search skill that looks through design and architecture documents instead of searching the project code first.

In plain words
What is it for?
It is for finding where a feature is implemented, learning how modules are designed, and answering architecture questions.
Why use it?
It helps locate implementations and understand system design while reducing unnecessary code searches and token use.

Skill for Claude CodeCodex

Part of the aria plugin — 42 skills, 11 agents, 3 hooks shipped together

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.

agentmods
npx agentmods add skills/10cg/aria-plugin/arch-search
Any agent
npx skills add 10CG/aria-plugin --skill arch-search
Clone the repo
git clone --depth 1 https://github.com/10CG/aria-plugin

Made for: Claude Code, Codex.

Or install aria, the plugin that ships this one along with the rest of its 42 skills, 11 agents, 3 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 arch-search

README.md
[![agentmods](https://agentmods.dev/badge/skills/10cg/aria-plugin/arch-search.svg)](https://agentmods.dev/skills/10cg/aria-plugin/arch-search)
Your own site
<a href="https://agentmods.dev/skills/10cg/aria-plugin/arch-search"><img src="https://agentmods.dev/badge/skills/10cg/aria-plugin/arch-search.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,118 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00044 $0.01118
Opus 5 $0.00022 $0.00559
Sonnet 5 $0.00009 $0.00224
Haiku 4.5 $0.00004 $0.00112

Measured 4d ago against content hash 1f1f92e40848, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

arch-search 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 4d 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.

skills/arch-search/SKILL.md · 160 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 160 lines · 44 tokens per session scan A 1f1f92e40848

Subscribe to this mod's changes

arch-search is a skill published in the GitHub repository 10CG/aria-plugin (1 stars, last pushed 2d ago), with no licence file. It adds 44 tokens to every session and 1,118 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.

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