eIsland: Skill for Claude Code

.claude/skills/eisland-dev-add-empty-setting-subpage/SKILL.md

eisland-dev-add-empty-setting-subpage is a skill for Claude Code from JNTMTMTM/eIsland. It costs 143 tokens per session (2,360 once invoked), scanned A, original, GPL-3.0.

A project-specific procedure for adding an empty tab to an eIsland settings area. The new tab is connected to the settings section's page navigation.

In plain words
What is it for?
Use it when creating a blank settings subpage that can later receive its own content.
Why use it?
It avoids having to work out the project's settings-page structure and navigation conventions manually.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is JNTMTMTM/eIsland's own configuration. It tells Claude Code how to work on eIsland 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 eIsland configures →

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is import { SettingsPageNavigation } from '../SettingsPageNavigation';.

Reuse

Borrowing it

Nothing to install: this file belongs to JNTMTMTM/eIsland. 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/JNTMTMTM/eIsland/main/.claude/skills/eisland-dev-add-empty-setting-subpage/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/JNTMTMTM/eIsland

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 eisland-dev-add-empty-setting-subpage

README.md
[![agentmods](https://agentmods.dev/badge/skills/jntmtmtm/eisland/eisland-dev-add-empty-setting-subpage/github.svg)](https://agentmods.dev/skills/jntmtmtm/eisland/eisland-dev-add-empty-setting-subpage)
Your own site
<a href="https://agentmods.dev/skills/jntmtmtm/eisland/eisland-dev-add-empty-setting-subpage"><img src="https://agentmods.dev/badge/skills/jntmtmtm/eisland/eisland-dev-add-empty-setting-subpage/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 eisland-dev-add-empty-setting-subpage

Your own site · 80×15
<a href="https://agentmods.dev/skills/jntmtmtm/eisland/eisland-dev-add-empty-setting-subpage"><img src="https://agentmods.dev/badge/skills/jntmtmtm/eisland/eisland-dev-add-empty-setting-subpage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 143 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,360 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 $0.00143 $0.02360
Opus 5 $0.00072 $0.01180
Sonnet 5 $0.00029 $0.00472
Haiku 4.5 $0.00014 $0.00236

Measured 10d ago against content hash af365d5939df, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

eisland-dev-add-empty-setting-subpage 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 10d 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.

.claude/skills/eisland-dev-add-empty-setting-subpage/SKILL.md · 278 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. 10d ago First seen · 278 lines · 143 tokens per session scan A af365d5939df

Subscribe to this mod's changes

eisland-dev-add-empty-setting-subpage is a skill published in the GitHub repository JNTMTMTM/eIsland (312 stars, last pushed today), licensed GPL-3.0. It adds 143 tokens to every session and 2,360 once invoked, about $0.0007 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 2026-08-30.

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