init-sumela

init-sumela is a skill for Claude Code, Codex from tolgakisaogullari/SumelaOS. It costs 64 tokens per session (9,830 once invoked), scanned A, original, MIT.

A project-onboarding workflow that detects the technology stack and structure of an existing codebase, then prepares agent guidance for it. SumelaOS is the project framework this workflow configures.

In plain words
What is it for?
Use it in an existing project after requesting setup to inspect the stack and generate files such as agent instructions, rules, a wiki, and editor pointers after confirmation.
Why use it?
It reduces the manual work needed to explain a project’s conventions and architecture to coding agents before development begins.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions AGENTS.md.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is | docs/second-brain/ | ./docs/second-brain | COLLIDES | Rename to docs/second-brain-legacy/, install ours, migrate pages |.

Good fit Use it in an existing project after requesting setup to inspect the stack and generate files such as agent instructions, rules, a wiki, and editor pointers after confirmation.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/tolgakisaogullari/SumelaOS
agentmods
npx agentmods add skills/tolgakisaogullari/sumelaos/init-sumela

Made for: Claude Code, Codex.

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 init-sumela

README.md
[![agentmods](https://agentmods.dev/badge/skills/tolgakisaogullari/sumelaos/init-sumela/github.svg)](https://agentmods.dev/skills/tolgakisaogullari/sumelaos/init-sumela)
Your own site
<a href="https://agentmods.dev/skills/tolgakisaogullari/sumelaos/init-sumela"><img src="https://agentmods.dev/badge/skills/tolgakisaogullari/sumelaos/init-sumela/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 init-sumela

Your own site · 80×15
<a href="https://agentmods.dev/skills/tolgakisaogullari/sumelaos/init-sumela"><img src="https://agentmods.dev/badge/skills/tolgakisaogullari/sumelaos/init-sumela.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,830 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 $0.00064 $0.09830
Opus 5 $0.00032 $0.04915
Sonnet 5 $0.00013 $0.01966
Haiku 4.5 $0.00006 $0.00983

Measured 11d ago against content hash 0a6978f2e96a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

init-sumela 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.

.sumela/skills/init-sumela/SKILL.md · 608 lines

How it starts

The opening of the file, as written. The whole thing — 608 lines — stays where its author put it; the contents beside it link to each section on GitHub.

This is the "zero-config" onboarding experience: one command → fully functional agent framework.

<execution_workflow> Execute these steps strictly in order. STOP and ask for user confirmation before writing any files.

PHASE 1 — Project Reconnaissance (silent)

Read the project structure to build a mental model. Do NOT write anything yet.

Step 1.1: Stack Detection

Scan for manifest/dependency files to identify the tech stack:

File Found Stack Detected Backend Frontend Mobile
*.csproj, *.sln, *.slnx .NET
package.json with react-native or expo React Native / Expo
package.json with react + vite/next/cra React
package.json with vue/nuxt Vue
package.json with angular Angular
go.mod Go
Cargo.toml Rust
pom.xml, build.gradle Java/Kotlin
requirements.txt, pyproject.toml, Pipfile Python
Gemfile Ruby
pubspec.yaml Flutter
docker-compose.yml Infrastructure infra
nginx/, terraform/, k8s/ Infrastructure infra

For each package.json found, read it to extract: framework, key dependencies, scripts (build/test/lint/dev commands).

For each *.csproj found, read it to extract: target framework, key packages, project references.

Step 1.2: Architecture Detection

Analyze directory structure to identify the architecture pattern:

Pattern Indicators
Clean Architecture src/Domain/, src/Application/, src/Infrastructure/, src/Api/ or src/Presentation/
MVC Controllers/, Models/, Views/ or app/, resources/views/
Microservices services/, gateway/, multiple Dockerfiles, docker-compose.yml with multiple services
Monorepo packages/, apps/, libs/, workspace config (lerna, nx, turborepo, pnpm-workspace)
Modular Monolith modules/, features/, each with own controller/service/repository
Hexagonal/Ports-Adapters ports/, adapters/, domain/
Feature-based features/auth/, features/users/, each with own files
Flat Single src/ or app/ with files organized by type

Read the full file on GitHub · 608 lines

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 First seen · 608 lines · 64 tokens per session scan A 0a6978f2e96a

Subscribe to this mod's changes

init-sumela is a skill published in the GitHub repository tolgakisaogullari/SumelaOS (4 stars, last pushed 17d ago), licensed MIT. It adds 64 tokens to every session and 9,830 once invoked, about $0.0003 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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