A tool for creating and editing flashcards in Markdown files for spaced-repetition learning, a method that reviews information at increasing intervals. Cards can use one-line or multi-line question-and-answer formats and are grouped with desk tags.

Use it to make study cards, reverse cards, organize them by subject, or fix formatting in existing flashcard notes.

It provides consistent card formatting and organization so flashcards can be created, changed, and troubleshot without breaking their structure.

flashcard — Skill for Claude Code and Codex by googlicius

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 googlicius/obsidian-steward --skill flashcard

Clone the repo

git clone --depth 1 https://github.com/googlicius/obsidian-steward

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/googlicius/obsidian-steward/flashcard/github.svg)](https://agentmods.dev/skills/googlicius/obsidian-steward/flashcard)

Your own site

<a href="https://agentmods.dev/skills/googlicius/obsidian-steward/flashcard"><img src="https://agentmods.dev/badge/skills/googlicius/obsidian-steward/flashcard/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/googlicius/obsidian-steward/flashcard"><img src="https://agentmods.dev/badge/skills/googlicius/obsidian-steward/flashcard.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,355 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. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original 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	$0.00033	$0.01355
Opus 5.5	$0.00013	$0.00542
Sonnet 5.5	$0.00007	$0.00271
Haiku 4.5	$0.00003	$0.00136

Measured 2mo ago against content hash 3aa466f60e69, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

flashcard 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 2mo 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/flashcard/SKILL.md · 264 lines

How it starts

The opening of the file, as written. The whole thing — 264 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Flashcard Skill

This skill enables you to create and edit flashcards for spaced repetition learning. Flashcards are stored in markdown files with specific formatting rules.

Flashcard Structure

Flashcards can be defined in two styles:

Single-Line Style

A single-line flashcard uses :: or ::: as separators:

Question :: Answer — Standard flashcard (question on front)
Question ::: Answer — Reversed flashcard (both sides can be swapped)

Examples:

What is the capital of France? :: Paris


The process of photosynthesis ::: Plants converting light energy into chemical energy

Multiple-Line Style

A multiple-line flashcard uses ? or ?? as separators:

Standard flashcard (?):

What are the three types of rock?
?
Igneous, sedimentary, and metamorphic

Reversed flashcard (??):

The Pythagorean theorem
??
a² + b² = c² in a right triangle

Desk Organization

Flashcards must always belong to a desk, indicated by tags prefixed with #flashcards:

Desk Tags

#flashcards/Math — All math flashcards
#flashcards/Math/Addition — Specific topic within math
#flashcards/History/WorldWar2 — Multi-level desk hierarchy

Example:

#flashcards/Math/Addition

What is 2 + 2? :: 4


What is 15 + 27? :: 42


#flashcards/Math/Subtraction

What is 10 - 3? :: 7


What is 50 - 18? :: 32

Rules for Desk Tags

Every flashcard must be below a desk tag (prefixed with #flashcards)
Desk tags can have hierarchical paths using / separator
All flashcards between one desk tag and the next (or end of file) belong to that desk

Sequential Review with @start/@end Markers

For flashcards that need to be reviewed in a specific order, use @start and @end markers:

Syntax

@start <Description>

Question 1 :: Answer 1


Question 2 :: Answer 2


Question 3 :: Answer 3

@end

The @start marker must include a description
Flashcards between @start and @end are always reviewed in sequence
Sequential groups must still be under a desk tag

Read the full file on GitHub · 264 lines

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.

2mo ago First seen · 264 lines · 33 tokens per session scan A 3aa466f60e69

Subscribe to this mod's changes

flashcard is a skill published in the GitHub repository googlicius/obsidian-steward (85 stars, last pushed 3mo ago), licensed MIT. It adds 33 tokens to every session and 1,355 once invoked, about $0.0001 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.

Autonomous Agents Learning and teaching Writing and docs obsidian-plugin shell terminal

flashcard next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
flashcardgooglicius/obsidian-steward	Skill	85	3mo ago	MIT	A	33	Claude Code, Codex
emil-engineering-vocabularyfreekmurze/dotfiles	Skill	1.0k	3d ago	none	A	102	Claude Code, Codex
agent-challengesruvnet/ruflo	Skill	81k	2d ago	MIT	A	15	Claude Code
explore-unknownsdzhng/skills	Skill	1.5k	yesterday	MIT	A	162	Claude Code, Codex
eli5dzhng/skills	Skill	1.5k	yesterday	MIT	A	29	Claude Code
liquid-glassfreekmurze/dotfiles	Skill	1.0k	3d ago	none	A	45	Claude Code
cloudflarefreekmurze/dotfiles	Skill	1.0k	3d ago	none	A	53	Claude Code, Codex