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stella: Skill for Claude Code

.claude/skills/oxagen-branding/SKILL.md

oxagen-branding is a skill for Claude Code from macanderson/stella. It costs 133 tokens per session (409 once invoked), scanned A, original, AGPL-3.0.

A writing and editing guide for Oxagen and Stella brand content. It applies when creating text that people will read on behalf of either brand.

In plain words
What is it for?
It is for writing or editing branded pages, posts, ads, emails, presentations, specifications, interface text, error messages, command-line output, and README files.
Why use it?
It keeps pages, messages, documents, and interface text consistent with the brands' approved voice and identity.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is macanderson/stella's own configuration. It tells Claude Code how to work on stella itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything stella configures →

not rated 18repo +1 changed 1mo ago A scan 133 tokens AGPL-3.0
View source ↗ macanderson/stella stella.oxagen.sh
Reuse

Borrowing it

Nothing to install: this file belongs to macanderson/stella. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/macanderson/stella/main/.claude/skills/oxagen-branding/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/macanderson/stella

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 oxagen-branding

README.md
[![agentmods](https://agentmods.dev/badge/skills/macanderson/stella/oxagen-branding/github.svg)](https://agentmods.dev/skills/macanderson/stella/oxagen-branding)
Your own site
<a href="https://agentmods.dev/skills/macanderson/stella/oxagen-branding"><img src="https://agentmods.dev/badge/skills/macanderson/stella/oxagen-branding/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 oxagen-branding

Your own site · 80×15
<a href="https://agentmods.dev/skills/macanderson/stella/oxagen-branding"><img src="https://agentmods.dev/badge/skills/macanderson/stella/oxagen-branding.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 133 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 409 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00133 $0.00409
Opus 5.5 $0.00053 $0.00164
Sonnet 5.5 $0.00027 $0.00082
Haiku 4.5 $0.00013 $0.00041

Measured 1mo ago against content hash f0dd6f6ffa34, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

oxagen-branding scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -fsSL "https://raw.githubusercontent.com/oxageninc/brand/$sha/skills/oxagen-branding/SKILL.md"
.claude/skills/oxagen-branding/SKILL.md · 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

Files

What ships with it

7 files 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. 1mo ago Changed f0dd6f6ffa34
  2. 1mo ago Changed 7b0cf4c2617a
  3. 1mo ago Changed · -74 lines 81357d584022
  4. 1mo ago First seen · 96 lines · 133 tokens per session scan A abdcf7ffee13

Subscribe to this mod's changes

oxagen-branding is a skill published in the GitHub repository macanderson/stella (18 stars, last pushed today), licensed AGPL-3.0. It adds 133 tokens to every session and 409 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-21.

Writing and docsagent-codingagent-memoryagent-swarmagent-teamsai-codingevals
Related

oxagen-branding compared with skills from other repositories

oxagen-branding next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
oxagen-brandingmacanderson/stellaSkill18todayAGPL-3.0A133Claude Code
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composiodesplega-ai/agent-swarmSkill1.0ktodayMITA128Claude Code
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scheduled-task-resiliencedesplega-ai/agent-swarmSkill1.0ktodayMITA48Claude Code
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agent-browserdesplega-ai/agent-swarmSkill1.0ktodayMITA125Claude Code