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 equinor/fusion-skills --skill fusion-backend-devgit clone --depth 1 https://github.com/equinor/fusion-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/equinor/fusion-skills/fusion-backend-dev)<a href="https://agentmods.dev/skills/equinor/fusion-skills/fusion-backend-dev"><img src="https://agentmods.dev/badge/skills/equinor/fusion-skills/fusion-backend-dev/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/equinor/fusion-skills/fusion-backend-dev"><img src="https://agentmods.dev/badge/skills/equinor/fusion-skills/fusion-backend-dev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
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 | $0.00110 | $0.01493 |
| Opus 5 | $0.00055 | $0.00746 |
| Sonnet 5 | $0.00022 | $0.00299 |
| Haiku 4.5 | $0.00011 | $0.00149 |
Grade A, and why
fusion-backend-dev 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.
How it starts
The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Fusion Backend Consumption
When to use
Use when needing to understand Fusion backend services, available APIs, integration patterns, or architectural decisions.
Typical triggers:
- "How do I call the People API?"
- "Show an example of how the authorization pattern works"
- "What's the contract for the Org service?"
- "How do services handle validation errors?"
- "What async/messaging patterns does Fusion use?"
- "Can I see a reference implementation of a CQRS handler?"
- "How do services integrate with external APIs?"
- "What authentication/authorization requirements do I need?"
- "Show how events flow through the system"
- "What's the pattern for cross-service calls?"
- "How should I structure my API client?"
- "Where should I call the Context API?"
- "What's the difference between a command and a query in Fusion?"
Implicit triggers:
- Building frontend/client app needing to understand backend contracts
- Integrating with Fusion APIs and need patterns
- Designing architecture needing backend best practices
- Learning from existing Fusion service implementations
When not to use
- Creating or modifying backend services — use service-specific repo skill
- Adding new endpoints or API operations — backend development
- Database schema changes or migrations — backend development
- Authorization requirement definitions — backend development (this skill shows what exists, not new requirements)
- Pure architecture discussions without code references — use
fusion-researchor ADR-focused skills - Selecting between Fusion Framework alternatives — use
fusion-researchorfusion-app-react-dev
Required inputs
Mandatory
- What you're trying to do: clear description of integration point, use case, or pattern
- Your role/context: building a frontend app? Integrating externally? Designing architecture?
Conditional
- When comparing patterns: which two options you're deciding between
- When consuming an API: what operation/scenario (CRUD, async, real-time, etc.)
- When integrating: external system name and direction of flow (calling out vs being called)
What ships with it
8 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.
- yesterday Changed · +1 lines · +4 tokens per session 28af00a1d242
- 8d ago First seen · 152 lines · 106 tokens per session scan A f5c8abe151dd
fusion-backend-dev is a skill published in the GitHub repository equinor/fusion-skills (1 stars, last pushed yesterday), licensed MIT. It adds 110 tokens to every session and 1,493 once invoked, about $0.0006 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 2026-08-31.
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