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 DorianSchlede/nexus-template --skill learn-nexusgit clone --depth 1 https://github.com/DorianSchlede/nexus-templateWrote 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/dorianschlede/nexus-template/learn-nexus)<a href="https://agentmods.dev/skills/dorianschlede/nexus-template/learn-nexus"><img src="https://agentmods.dev/badge/skills/dorianschlede/nexus-template/learn-nexus/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/dorianschlede/nexus-template/learn-nexus"><img src="https://agentmods.dev/badge/skills/dorianschlede/nexus-template/learn-nexus.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 | $0.00052 | $0.02037 |
| Opus 5 | $0.00026 | $0.01019 |
| Sonnet 5 | $0.00010 | $0.00407 |
| Haiku 4.5 | $0.00005 | $0.00204 |
Grade A, and why
learn-nexus 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 8d 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 — 340 lines — stays where its author put it; the contents beside it link to each section on GitHub.
[TARGET] AI Proactive Triggering (ONBOARDING SKILL)
This is an ONBOARDING skill with MEDIUM PRIORITY (suggest after core onboarding complete).
When to Proactively Suggest (AI MUST check user-config.yaml)
Check learning_tracker.completed.learn_nexus in user-config.yaml. If false:
PROACTIVELY SUGGEST when user:
- Has completed quick-start onboarding and other learning skills (learn-builds, learn-skills) but hasn't done learn-nexus yet - suggest as "graduation" step
- Asks philosophical questions ("why does Nexus work this way?", "what's the design behind...")
- Encounters AI patterns (false progress, incomplete reads, over-engineering)
- Makes common mistakes (creating builds instead of skills, skipping close-session)
- Expresses interest in mastering the system or best practices
- After using Nexus for 3+ sessions without completing this skill
Suggestion Pattern (after other onboarding):
💡 You've learned the core concepts! Ready for system mastery? 'learn nexus'
(15 min) covers the philosophy, design principles, common pitfalls, and
expert collaboration techniques.
This is the "graduation" skill - after this, you'll understand Nexus deeply.
Suggestion Pattern (encountering issues):
💡 I notice you're running into [AI pattern / common mistake]. The 'learn nexus'
skill covers exactly how to handle this. Want to take 15 minutes to learn
the system deeply? It'll prevent these issues in the future.
DO NOT suggest if:
learning_tracker.completed.learn_nexus: true- User hasn't completed core onboarding yet (suggest core skills first)
- User is new and just getting started (too advanced for first sessions)
Learn Nexus
Master Nexus through understanding its philosophy, design principles, and practical patterns.
Purpose
Help users understand WHY Nexus works the way it does, avoid common mistakes, and collaborate effectively with AI.
Time Estimate: 15-18 minutes
Part A: The Living Knowledge Organism (3 min)
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.
- 8d ago First seen · 340 lines · 52 tokens per session scan A dfcc53fd6a7b
learn-nexus is a skill published in the GitHub repository DorianSchlede/nexus-template (8 stars, last pushed 7mo ago), licensed MIT. It adds 52 tokens to every session and 2,037 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 2026-09-03.
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