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 agentmods add rules/bernierllc/agents-environment-config/fastapigit clone --depth 1 https://github.com/bernierllc/agents-environment-configWhat 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 | $0.00000 | $0.00763 |
| Opus 5 | $0.00000 | $0.00381 |
| Sonnet 5 | $0.00000 | $0.00153 |
| Haiku 4.5 | $0.00000 | $0.00076 |
Grade A, and why
fastapi 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 2d 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 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.
- 2d ago First seen · 129 lines · 0 tokens per session scan A c68b999819da
fastapi is a cursor rule published in the GitHub repository bernierllc/agents-environment-config (10 stars, last pushed 13d ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 763 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.
Other cursor rules, from other repositories
avoid_source_deduplication
name: avoid-source-deduplication description: Preserve unique source entries in search results to maintain proper citation tracking globs: ['/connectorservice.py', '/searchservice.py'] alwaysApply: true.
consistent_container_image_sources
name: consistent-container-image-sources description: Maintain consistent image sources in Docker compose files using authorized registries globs: ['/docker-compose.yml', '/docker-compose..yml'] alwaysApply: true.
no_env_files_in_repo
name: no-env-files-in-repo description: Prevent committing environment and configuration files containing sensitive credentials globs: ['/.env', '/.env.', '/config/.yml', '/config/.yaml'] alwaysApply: true.
cursorrules
use pnpm as default package manager.
niyam-conventions
Niyam is a full-stack AI-powered Applicant Tracking System (ATS) — a modern alternative to Greenhouse/Lever/SmartRecruiters.
stock-data
Stock data domain (TW/US markets, FinMind, Massive, ticker insights, charts, translations). Auto-attached when editing stock-related code.