focus

focus is a skill for Claude Code, Codex from Anantys-oss/koan. It costs 0 tokens per session (133 once invoked), scanned A, original, GPL-3.0.

A focused working mode for an AI coding agent that limits reflection and open-ended exploration. It processes assigned missions directly.

In plain words
What is it for?
Use it for tightly scoped coding missions where direct task processing matters more than brainstorming or broad investigation.
Why use it?
It reduces unrelated thinking and exploration when you want the agent to stay narrowly focused on a defined task.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it for tightly scoped coding missions where direct task processing matters more than brainstorming or broad investigation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/anantys-oss/koan/focus
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.

Any agent
npx skills add Anantys-oss/koan --skill focus
Clone the repo
git clone --depth 1 https://github.com/Anantys-oss/koan

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 focus

README.md
[![agentmods](https://agentmods.dev/badge/skills/anantys-oss/koan/focus/github.svg)](https://agentmods.dev/skills/anantys-oss/koan/focus)
Your own site
<a href="https://agentmods.dev/skills/anantys-oss/koan/focus"><img src="https://agentmods.dev/badge/skills/anantys-oss/koan/focus/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 focus

Your own site · 80×15
<a href="https://agentmods.dev/skills/anantys-oss/koan/focus"><img src="https://agentmods.dev/badge/skills/anantys-oss/koan/focus.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 133 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 $0.00000 $0.00133
Opus 5.5 $0.00000 $0.00053
Sonnet 5.5 $0.00000 $0.00027
Haiku 4.5 $0.00000 $0.00013

Measured 1mo ago against content hash 67f2bae2f1d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

focus 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 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (handler.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

koan/skills/core/focus/SKILL.md · 19 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

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. 1mo ago First seen · 19 lines · 0 tokens per session scan A 67f2bae2f1d9

Subscribe to this mod's changes

focus is a skill published in the GitHub repository Anantys-oss/koan (47 stars, last pushed 8d ago), licensed GPL-3.0. It costs nothing until one of its globs matches a file; then it loads 133 tokens. 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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