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.
npx skills add kju4q/q-claude-skills --skill buildinggit clone --depth 1 https://github.com/kju4q/q-claude-skillsWrote 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.
[](https://agentmods.dev/skills/kju4q/q-claude-skills/building)<a href="https://agentmods.dev/skills/kju4q/q-claude-skills/building"><img src="https://agentmods.dev/badge/skills/kju4q/q-claude-skills/building/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.
<a href="https://agentmods.dev/skills/kju4q/q-claude-skills/building"><img src="https://agentmods.dev/badge/skills/kju4q/q-claude-skills/building.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00062 | $0.00362 |
| Opus 5 | $0.00031 | $0.00181 |
| Sonnet 5 | $0.00012 | $0.00072 |
| Haiku 4.5 | $0.00006 | $0.00036 |
Grade A, and why
q-building 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 11d 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
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.
- 11d ago First seen · 26 lines · 62 tokens per session scan A ee43c17b53a6
q-building is a skill published in the GitHub repository kju4q/q-claude-skills (19 stars, last pushed 25d ago), with no licence file. It adds 62 tokens to every session and 362 once invoked, about $0.0003 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.
Other skills, from other repositories
dev-plan
Transforma um BRIEF (ou ideia já discutida) em PLAN.md atômico — tasks com critério verificável, vertical slices, must-haves observáveis, esforço estimado e pontos de reset de contexto. Sem código no plano. Auto-suficiente para reset — uma nova sessão consegue retomar lendo só o PLAN.md. Use quando o usuário disser…
dev-brainstorm
Grilling estruturado para estressar uma ideia de feature ANTES de planejar. Traduz ideia falada/solta em requisitos, classifica o tamanho (S/M/L), faz uma pergunta por vez sempre com recomendação inline, explora o codebase para resolver dúvidas sem perguntar, captura decisões em BRIEF.md ao vivo e fecha com radar de…
dev-ship
Fechamento de feature — verificação goal-backward antes de declarar pronto. Roda Must-Haves do PLAN.md, executa o demo script, revisa o diff completo procurando bugs e restos (debug logs, TODOs, código morto), passa lente de segurança nos arquivos tocados, escreve SUMMARY.md e arquiva o plano. Use quando o usuário…
dev-fix
Loop de diagnóstico disciplinado para bugs — sem PLAN.md, direto ao ponto. Constrói feedback loop reproduzível primeiro, ranqueia hipóteses falsificáveis, instrumenta um probe por hipótese, corrige com teste de regressão e limpa os rastros. Tem modo rápido para bug trivial. Use quando o usuário disser "/dev-fix", "tem…
dev-coding
Executa um PLAN.md task por task — lê readfirst, aplica a action, verifica acceptance, marca [x], faz commit atômico com referência à task. Mostra progresso (X/N), guarda de escopo quando a task infla, protocolo de drift quando a implementação diverge do plano. Suporta TDD vertical (tracer bullet red-green-refactor)…
collab-proof
Surfaces AI collaboration evidence the developer didn't consciously record. Vela 3-layer pipeline × ADHD 4-frame reasoning — prompt-native, zero dependencies.