Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/khalilbenaz/claude-skills-collectionnpx agentmods add skills/khalilbenaz/claude-skills-collection/developer-onboarding-builderWrote 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/khalilbenaz/claude-skills-collection/developer-onboarding-builder)<a href="https://agentmods.dev/skills/khalilbenaz/claude-skills-collection/developer-onboarding-builder"><img src="https://agentmods.dev/badge/skills/khalilbenaz/claude-skills-collection/developer-onboarding-builder/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/khalilbenaz/claude-skills-collection/developer-onboarding-builder"><img src="https://agentmods.dev/badge/skills/khalilbenaz/claude-skills-collection/developer-onboarding-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Privilege Escalation · line 30 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
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 | $0.00072 | $0.02285 |
| Opus 5 | $0.00036 | $0.01143 |
| Sonnet 5 | $0.00014 | $0.00457 |
| Haiku 4.5 | $0.00007 | $0.00229 |
Grade A, and why
developer-onboarding-builder 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 236 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Developer Onboarding Builder
Critères de décision avant de commencer
| Contexte | Action recommandée |
|---|---|
| Première embauche de l'équipe | Créer le process from scratch (étapes 1→8) |
| Onboarding existant mais douloureux | Audit d'abord : identifier les étapes manuelles, les accès qui manquent, la doc périmée |
| Stack change (migration, nouveau service) | Mettre à jour GETTING_STARTED.md + script setup ; réutiliser le reste |
| Profil senior / nouveau sur le domaine métier | Réduire le setup time, allonger le parcours métier (ADR, post-mortems, glossaire) |
Workflow en étapes
Étape 1 — Script de setup idempotent
Un onboarding sans script se dégrade en 3 semaines. Le script est la source de vérité.
# Makefile minimal — couvre les cas les plus fréquents
.PHONY: setup check-deps
setup: check-deps
cp .env.example .env
npm ci
docker compose up -d db redis
npm run db:migrate
npm run db:seed
@echo "✅ Env prêt. Lance : npm run dev"
check-deps:
@command -v node >/dev/null || (echo "Node manquant"; exit 1)
@command -v docker >/dev/null || (echo "Docker manquant"; exit 1)
Checklist script :
- Idempotent (relancer ne casse rien)
- Testé sur machine vierge (CI ou VM) au moins une fois par trimestre
- Couvre : runtime, dépendances, variables d'env, DB locale, certificats internes
- Temps total < 2h sur une machine standard
Accès à provisionner AVANT J1 :
□ Git (repo + droits push sur branches de travail)
□ Slack/Teams (invité dans les channels clés, pas tous)
□ Gestionnaire de tickets (Jira, Linear, Azure DevOps)
□ VPN + credentials
□ Cloud (AWS/GCP/Azure) — environnement dev uniquement, read-only prod
□ Registres privés (npm, Docker Hub, Maven, NuGet)
□ Gestionnaire de secrets (Vault, AWS SSM) — policies en lecture dev
□ Accès monitoring (Grafana, Datadog) — lecture seule
Étape 2 — GETTING_STARTED.md
Fichier linkable depuis le README principal. Cible : 30 min de lecture → compréhension globale.
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.
- 7d ago First seen · 236 lines · 72 tokens per session scan A ccd3a1e038ce
developer-onboarding-builder is a skill published in the GitHub repository khalilbenaz/claude-skills-collection (22 stars, last pushed 16d ago), licensed MIT. It adds 72 tokens to every session and 2,285 once invoked, about $0.0004 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 2026-09-03.
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