flat-skill

flat-skill is a skill for Claude Code, Codex from pantheon-org/tekhne. It costs 18 tokens per session (81 once invoked), scanned A, a copy of flat-skill, MIT.

A minimal skill format that keeps all of its files in one top-level folder. The available details say it uses a guide, an extraction script, and a formatting template.

In plain words
What is it for?
Use it to run the extraction script and apply the formatting template; the exact purpose of the extracted data is not specified.
Why use it?
It provides a simple layout, but the supplied information does not explain a broader problem it solves.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/pantheon-org/tekhne/flat-skill
Any agent
npx skills add pantheon-org/tekhne --skill flat-skill
Clone the repo
git clone --depth 1 https://github.com/pantheon-org/tekhne

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 flat-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/pantheon-org/tekhne/flat-skill.svg)](https://agentmods.dev/skills/pantheon-org/tekhne/flat-skill)
Your own site
<a href="https://agentmods.dev/skills/pantheon-org/tekhne/flat-skill"><img src="https://agentmods.dev/badge/skills/pantheon-org/tekhne/flat-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 81 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00018 $0.00081
Opus 5 $0.00009 $0.00041
Sonnet 5 $0.00004 $0.00016
Haiku 4.5 $0.00002 $0.00008

Measured 5d ago against content hash f75a9dc873a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

flat-skill 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 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (extract.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.

Origin

This is a copy

100% identical to flat-skill — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

crates/skill-validator-rs/tests/golden-corpus/fixtures/testdata/flat-skill/SKILL.md · 15 lines

What it actually says

Flat Skill

This skill uses a flat directory layout instead of the standard structure.

Usage

Refer to guide.md for detailed instructions on how to use this skill.

Run extract.py to extract data from the source, then apply template.txt to format the output.

Files

What ships with it

3 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. 5d ago First seen · 15 lines · 18 tokens per session scan A f75a9dc873a4

Subscribe to this mod's changes

flat-skill is a skill published in the GitHub repository pantheon-org/tekhne (10 stars, last pushed 4d ago), licensed MIT. It adds 18 tokens to every session and 81 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to flat-skill, differing in 0 lines, and is treated as a copy.

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