spartan

spartan is a skill in alexgreensh/attention-span, last changed 23 Oct 2026. It can name web addresses. Our pattern check flagged nothing at commit 8a6e225 on 27 Oct 2026.

Pattern check: nothing flagged · commit 8a6e225 · 27 Oct 2026

Install

From the author

Answer in the terse, zero-warmth Spartan style for the rest of this chat.

Licence: AGPL 3.0
Repo stars: 1.5k
Folder last changed: 23 Oct 2026 (opens in a new tab)
Publisher: alexgreensh
Files: 1 file
Checked: 8a6e225 (opens in a new tab) · 27 Oct 2026

Install

Each tab says whether it installs commit 8a6e225, the one we checked, or the latest version.

No tab for your agent? Use Any agent for OpenCode, Goose, Windsurf (Devin Desktop), Zed, Roo Code, Factory Droid, Junie, Amp and Antigravity, and Claude Code for Cline. Kiro needs the folder copied by hand.

Pinned to commit 8a6e225, the one we checked.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/alexgreensh/attention-span.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  git -C "$tmp" sparse-checkout set -- plugins/attention-span/skills/spartan &&
  git -C "$tmp" checkout -q 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  mkdir -p .claude/skills &&
  mkdir .claude/skills/spartan &&
  cp -R "$tmp"/plugins/attention-span/skills/spartan/. .claude/skills/spartan/ &&
  rm -rf "$tmp"

If Claude Code was already running and this created the skills folder, run /reload-skills.

Or install the attention-span plugin it ships in. Installs the latest version, not the one we checked. Installs everything in the plugin, including any hooks, MCP servers and scripts our check doesn't cover.

claude plugin marketplace add alexgreensh/attention-span --scope project &&
  claude plugin install attention-span@attention-span --scope project

Claude Code docs

Pinned to commit 8a6e225, the one we checked.

Skills in the Claude apps belong to your account rather than to a project.

Make spartan.zip, with the skill folder at the top level:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/alexgreensh/attention-span.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  git -C "$tmp" sparse-checkout set -- plugins/attention-span/skills/spartan &&
  git -C "$tmp" checkout -q 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  out="$(mktemp -d)" &&
  cp -R "$tmp"/plugins/attention-span/skills/spartan "$out"/spartan &&
  (cd "$out" && zip -qr - spartan) > spartan.zip &&
  rm -rf "$tmp" "$out"

In Claude, open Customize > Skills, select +, then + Create skill > Upload a skill, and choose spartan.zip.

On Free, Pro and Max plans, turn on Code execution and file creation (Create and edit files in newer settings) under Settings > Capabilities.

Claude apps docs

Pinned to commit 8a6e225, the one we checked.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/alexgreensh/attention-span.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  git -C "$tmp" sparse-checkout set -- plugins/attention-span/skills/spartan &&
  git -C "$tmp" checkout -q 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  mkdir -p .agents/skills &&
  mkdir .agents/skills/spartan &&
  cp -R "$tmp"/plugins/attention-span/skills/spartan/. .agents/skills/spartan/ &&
  rm -rf "$tmp"

Codex picks up new skills on its own; restart it if this one does not appear.

Codex docs

Pinned to commit 8a6e225, the one we checked.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/alexgreensh/attention-span.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  git -C "$tmp" sparse-checkout set -- plugins/attention-span/skills/spartan &&
  git -C "$tmp" checkout -q 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  mkdir -p .cursor/skills &&
  mkdir .cursor/skills/spartan &&
  cp -R "$tmp"/plugins/attention-span/skills/spartan/. .cursor/skills/spartan/ &&
  rm -rf "$tmp"

Cursor docs

Pinned to commit 8a6e225, the one we checked.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/alexgreensh/attention-span.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  git -C "$tmp" sparse-checkout set -- plugins/attention-span/skills/spartan &&
  git -C "$tmp" checkout -q 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  mkdir -p .github/skills &&
  mkdir .github/skills/spartan &&
  cp -R "$tmp"/plugins/attention-span/skills/spartan/. .github/skills/spartan/ &&
  rm -rf "$tmp"

In a running Copilot CLI session, run /skills reload.

Or install it with gh skill, which also installs the commit we checked. Needs GitHub CLI 2.90 or later.

gh skill install alexgreensh/attention-span plugins/attention-span/skills/spartan/SKILL.md@8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 --agent github-copilot --scope project

Copilot & VS Code docs

Pinned to commit 8a6e225, the one we checked.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/alexgreensh/attention-span.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  git -C "$tmp" sparse-checkout set -- plugins/attention-span/skills/spartan &&
  git -C "$tmp" checkout -q 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  mkdir -p .gemini/skills &&
  mkdir .gemini/skills/spartan &&
  cp -R "$tmp"/plugins/attention-span/skills/spartan/. .gemini/skills/spartan/ &&
  rm -rf "$tmp"

In a running session, run /skills reload.

Or use Gemini CLI’s own installer. Installs the latest version, not the one we checked.

gemini skills install https://github.com/alexgreensh/attention-span.git --path plugins/attention-span/skills/spartan --scope workspace

Gemini CLI docs

Pinned to commit 8a6e225, the one we checked.

Codex, Cursor, Copilot, VS Code, Gemini CLI, OpenCode, Goose, Amp and Zed all read .agents/skills; Claude Code and Kiro list only their own folders.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/alexgreensh/attention-span.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  git -C "$tmp" sparse-checkout set -- plugins/attention-span/skills/spartan &&
  git -C "$tmp" checkout -q 8a6e2250dbc1dfb1b4186e03a92484d8c799c1b0 &&
  mkdir -p .agents/skills &&
  mkdir .agents/skills/spartan &&
  cp -R "$tmp"/plugins/attention-span/skills/spartan/. .agents/skills/spartan/ &&
  rm -rf "$tmp"

Or use the skills CLI from skills.sh. Installs the latest version, not the one we checked. The skills CLI reports installs to skills.sh unless you set DISABLE_TELEMETRY=1.

npx skills@1.7.4 add alexgreensh/attention-span --skill spartan

Agent Skills docs

What it can touch

From the files and frontmatter at commit 8a6e225. This is how much a skill can do, not whether it is risky.

What it can touch: Scripts or outside hosts

Names web addresses
It mentions outside web addresses the agent may visit. We list them but don't follow them.

Pattern check

Pattern check: nothing flagged · commit 8a6e225 · 27 Oct 2026

We checked every text file in this skill, at commit 8a6e225 on 27 Oct 2026, against 45 published patterns such as download-and-run commands, hidden text and credential access. We don't run the skill, we don't read the web pages it points to, and we can't judge everything its instructions might lead an agent to do. In published tests, pattern checks like this one missed most malicious skills. Read the skill before you install it — especially anything it asks you to download or run.

How the check works Report an incorrect finding

Outside links we did not follow

https://github.com/alexgreensh/attention-span

Format check

Each agent reads SKILL.md a little differently. We check the file against each one's published rules; we don't run the skill in any agent.

Agent Skills specPasses with warnings
The open format from agentskills.io, held to what the strictest agents enforce, so one folder loads everywhere.
- Warning
  Fields outside the spec: disable-model-invocation (read by Claude Code and VS Code). Uploads to the Claude apps and API, and the spec's validator, reject the file; most agents ignore these fields. O1
  Fix: Delete them for a portable skill, or keep them if you only target the agents that read them.
- Note
  The description doesn't say when to use the skill. D6
  Fix: Add a sentence such as "Use when …" naming the requests or files that should trigger it.
- Note
  There is no license field, so readers can't tell whether they may reuse the skill. O2
  Fix: Add license: with an SPDX name such as MIT or Apache-2.0, or the name of a bundled licence file.
Claude CodePasses
Claude apps & API uploadFails
Uploading to claude.ai or the Claude API, or packaging with Anthropic's script, accepts only the six spec fields and stops on anything else.
- Error
  Upload and packaging fail on fields outside the spec: disable-model-invocation. O1
  Fix: Delete them, and keep your own data under metadata as text values.
OpenAI (Codex & API)Passes with warnings
Codex finds SKILL.md by its exact name and needs a description; OpenAI's Skills API checks the frontmatter against the spec and caps uploads.
- Warning
  Fields outside the spec: disable-model-invocation. Codex ignores them; OpenAI doesn't say whether its upload accepts them. O1
  Fix: Delete them, or move your own data under metadata as text values.
VS Code & CopilotPasses

SKILL.md

We only show SKILL.md text here when its licence clearly allows it.

Read SKILL.md on GitHub

Files

1 file

Path	Size
SKILL.md (opens in a new tab)	3.7 KB

spartan

Install

What it can touch

Pattern check

Outside links we did not follow

Format check

SKILL.md

Files

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