A structured learning workflow for studying a subject, reading materials by theme, or continuing an earlier learning project. It creates or restores a traceable learning record before teaching begins.

Learning a topic systematically, studying through questions, doing thematic reading, and resuming a previous learning project.

It keeps study progress and sources connected over time instead of treating each explanation as a separate conversation. It is meant for guided learning, not a quick answer or content rewrite.

eva-learn — Skill for Claude Code and Codex by Lulu-Eva/Eva-skill

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 Lulu-Eva/Eva-skill --skill eva-learn

Clone the repo

git clone --depth 1 https://github.com/Lulu-Eva/Eva-skill

Made for: Claude Code, Codex.

Or install eva, the plugin that ships this one along with the rest of its 13 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/lulu-eva/eva-skill/eva-learn/github.svg)](https://agentmods.dev/skills/lulu-eva/eva-skill/eva-learn)

Your own site

<a href="https://agentmods.dev/skills/lulu-eva/eva-skill/eva-learn"><img src="https://agentmods.dev/badge/skills/lulu-eva/eva-skill/eva-learn/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/lulu-eva/eva-skill/eva-learn"><img src="https://agentmods.dev/badge/skills/lulu-eva/eva-skill/eva-learn.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 186 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,479 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.

Model	Per session	Once invoked
Fable 5.1	$0.00186	$0.01479
Opus 5.5	$0.00074	$0.00592
Sonnet 5.5	$0.00037	$0.00296
Haiku 4.5	$0.00019	$0.00148

Measured 1mo ago against content hash 57c39db8f86d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

eva-learn 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.

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.

skills/eva-learn/SKILL.md · 79 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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.

agents/openai.yaml 220 B

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.

1mo ago Changed 57c39db8f86d
1mo ago Changed adaf6bc7c8cb
2mo ago First seen · 79 lines · 186 tokens per session scan A 1ba59d2d7765

Subscribe to this mod's changes

eva-learn is a skill published in the GitHub repository Lulu-Eva/Eva-skill (62 stars, last pushed 1mo ago), with no licence file. It adds 186 tokens to every session and 1,479 once invoked, about $0.0007 per session on Opus 5.5. 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.

Learning and teaching

eva-learn next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
eva-learnLulu-Eva/Eva-skill	Skill	62	1mo ago	none	A	186	Claude Code, Codex
hr-onboardingnexu-io/open-design	Skill	106k	yesterday	Apache-2.0	A	62	Claude Code, Codex
book-mirrorgarrytan/gbrain	Skill	32k	yesterday	MIT	A	138	Claude Code
exam-forecastanthropics/claude-for-legal	Skill	9.9k	3d ago	Apache-2.0	A	73	Claude Code
lean-formalizewanshuiyin/Auto-claude-code-research-in-sleep	Skill	19k	3d ago	MIT	A	81	Claude Code
eli5companion-inc/feynman	Skill	10k	6d ago	MIT	A	63	Claude Code, Codex
deck-course-modulenexu-io/html-anything	Skill	9.4k	25d ago	Apache-2.0	A	25	Claude Code, Codex