qa

A documentation tool for recording questions and answers about technical, mathematical, and specialised subjects as structured reference pages.

In plain words
What is it for?
Use it to save explanations of subjects such as algorithms, topology, statistics, machine learning, or web technology in dated Markdown files.
Why use it?
It gives scattered explanations a consistent place and format, making concepts easier to revisit and organise by topic.

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/roboco-io/plugins/qa
Any agent
npx skills add roboco-io/plugins --skill qa
Clone the repo
git clone --depth 1 https://github.com/roboco-io/plugins

Made for: Claude Code, Codex.

Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 753 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00035 $0.00753
Opus 5 $0.00017 $0.00377
Sonnet 5 $0.00007 $0.00151
Haiku 4.5 $0.00003 $0.00075

Measured yesterday against content hash 09044e9635b7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

qa 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 yesterday.

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.

plugins/documentation/skills/qa/SKILL.md · 99 lines

What it actually says

Q&A Recording Skill

기술적/수학적 개념에 대한 질문과 답변을 구조화된 문서로 기록합니다.

사용법

/qa <질문 또는 개념>

예시

/qa Persistent Homology가 뭐야?
/qa Takens embedding의 수학적 원리
/qa Simplicial complex와 graph의 차이점
/qa React Server Components 동작 방식

동작

  1. 전달된 질문/개념을 분석하고 카테고리 분류
  2. 체계적이고 명확한 답변 작성
  3. docs/qa/ 디렉토리에 마크다운 파일로 저장

파일 저장 규칙

  • 파일명: YYYYMMDD-HHMMSS-<slug>.md
    • 예: 20260118-143052-persistent-homology.md
  • 저장 위치: docs/qa/
  • 디렉토리가 없으면 자동 생성

파일 구조

---
date: YYYY-MM-DD HH:MM:SS
tags: [관련 태그들]
category: <카테고리>
---

# Q: <질문>

## A: <답변 제목>

<상세 설명>

### 핵심 개념
- ...

### 수학적 정의 (해당시)
- ...

### 예시
- ...

### 관련 개념
- ...

카테고리 분류

카테고리 설명 예시
math 수학 전반 선형대수, 미적분, 확률론
topology 위상수학 Persistent Homology, Simplicial Complex
algebra 대수학 Tensor, Matrix Decomposition
geometry 기하학 Manifold, Embedding
ml 머신러닝 Neural Network, Optimization
statistics 통계학 Bayesian, Hypothesis Testing
cs 컴퓨터 과학 Algorithm, Data Structure
web 웹 기술 React, HTTP, REST
infra 인프라 Docker, Kubernetes, AWS
general 기타 분류 불가한 항목

작성 지침

  1. 직관성: 12살도 이해할 수 있게 직관적으로 설명. 일상적인 비유와 쉬운 예시를 먼저 제시
  2. 명확성: 직관적 설명 후 학문적 엄밀성을 갖춘 정의 제공
  3. 구조화: 직관적 설명 → 정의 → 예시 → 응용 순서로 설명
  4. 시각화: 가능하면 Mermaid 다이어그램 (흑백) 사용
  5. 연결성: 관련 개념이 있으면 언급
  6. 실용성: 현재 프로젝트와의 연관성이 있으면 언급

실행 절차

  1. 질문 분석 및 카테고리 분류
  2. 체계적인 답변 작성
  3. docs/qa/ 디렉토리 확인 (없으면 생성)
  4. 파일 저장
  5. 저장 완료 메시지 출력

질문: $ARGUMENTS

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. yesterday First seen · 99 lines · 35 tokens per session scan A 09044e9635b7

Subscribe to this mod's changes

qa is a skill published in the GitHub repository roboco-io/plugins (21 stars, last pushed 1mo ago), licensed MIT. It adds 35 tokens to every session and 753 once invoked, about $0.0002 per session on Opus 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.

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