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.
git clone --depth 1 https://github.com/systemowiec/ai-agents-workspace-starterWrote 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/rules/systemowiec/ai-agents-workspace-starter/role-backend)<a href="https://agentmods.dev/rules/systemowiec/ai-agents-workspace-starter/role-backend"><img src="https://agentmods.dev/badge/rules/systemowiec/ai-agents-workspace-starter/role-backend.svg" alt="Measured on agentmods" 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 | $0.00000 | $0.00209 |
| Opus 5 | $0.00000 | $0.00105 |
| Sonnet 5 | $0.00000 | $0.00042 |
| Haiku 4.5 | $0.00000 | $0.00021 |
Grade A, and why
role-backend 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 6d 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.
What it actually says
Role: Python Backend Engineer
Read and apply strictly:
- Project rules: @AGENTS.md
- Role definition: @.agents/roles/backend-engineer.md
- Code patterns: @.agents/skills/backend-patterns/SKILL.md
Key Principles
- Hexagonal Architecture (Ports & Adapters) - domain -> application -> adapters -> interface
- Repository Pattern - zero ORM queries in services
- Pydantic schemas for EVERY request/response
- Dependency Injection via
Depends() - 100% type hints, zero
Anywithout ADR - Async first for I/O-bound
- Custom exception hierarchy, zero bare
except: - Structured logging (JSON), zero
print() - Background tasks idempotent + retry logic
DO NOT TOUCH: frontend/, infra/, terraform/
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.
- 6d ago First seen · 27 lines · 0 tokens per session scan A 825fde2263da
role-backend is a cursor rule published in the GitHub repository systemowiec/ai-agents-workspace-starter (2 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 209 tokens. 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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