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/first-fluke/fullstack-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/first-fluke/fullstack-starter/lint-format-guide)<a href="https://agentmods.dev/rules/first-fluke/fullstack-starter/lint-format-guide"><img src="https://agentmods.dev/badge/rules/first-fluke/fullstack-starter/lint-format-guide/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/rules/first-fluke/fullstack-starter/lint-format-guide"><img src="https://agentmods.dev/badge/rules/first-fluke/fullstack-starter/lint-format-guide.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 | $0.00008 | $0.01204 |
| Opus 5.5 | $0.00003 | $0.00482 |
| Sonnet 5.5 | $0.00002 | $0.00241 |
| Haiku 4.5 | $0.00001 | $0.00120 |
Grade A, and why
lint-format-guide 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 1mo 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 — 240 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Lint & Format Guide
Overview
This project uses:
- Biome for JavaScript/TypeScript (lint + format)
- Ruff for Python (lint + format)
- dart analyze for Dart/Flutter
- terraform fmt for Terraform
Quick Commands
Check All
# From root
bun lint # Biome check
bun format:check # Biome format check
# Python (in apps/api or apps/worker)
poe lint # Ruff check
poe format:check # Ruff format check
# Flutter (in apps/mobile)
flutter analyze
# Terraform (in apps/infra/gcp or apps/infra/aws)
terraform fmt -check -recursive
Fix All
# From root
bun lint:fix # Biome fix
bun format # Biome format
# Python
poe lint:fix # Ruff fix
poe format # Ruff format
# Terraform
terraform fmt -recursive
Biome (JavaScript/TypeScript)
Configuration
See biome.json at project root.
Key Rules
- Indent: 2 spaces
- Quotes: double
- Semicolons: required
- Trailing commas: ES5
- Line width: 100
Lint Categories
- Correctness: Errors that will cause bugs
- Suspicious: Likely bugs or confusing code
- Style: Code style issues
- Complexity: Overly complex code
- Security: Potential security issues
Ignored Patterns
node_modules/.next/dist/coverage/- Generated files (
*.gen.ts)
Editor Integration
// .vscode/settings.json
{
"editor.defaultFormatter": "biomejs.biome",
"editor.formatOnSave": true,
"[typescript]": {
"editor.defaultFormatter": "biomejs.biome"
},
"[typescriptreact]": {
"editor.defaultFormatter": "biomejs.biome"
}
}
Ruff (Python)
Configuration
See ruff.toml in apps/api/ and apps/worker/.
Key Rules
- Line length: 88
- Target: Python 3.12
- Indent: 4 spaces
- Quotes: double
Rule Sets
- E/W: pycodestyle (errors/warnings)
- F: Pyflakes
- I: isort (import sorting)
- UP: pyupgrade
- B: flake8-bugbear
- S: bandit (security)
- SIM: flake8-simplify
- ASYNC: flake8-async
- RUF: Ruff-specific
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.
- 1mo ago First seen · 240 lines · 8 tokens per session scan A d6f59d17db67
lint-format-guide is a cursor rule published in the GitHub repository first-fluke/fullstack-starter (224 stars, last pushed 3d ago), licensed MIT. It adds 8 tokens to every session and 1,204 once invoked, about $0.0000 per session on Opus 5.5. 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.
Other cursor rules, from other repositories
cursorrules
Cursor rule "cursorrules" from CopilotKit/CopilotKit, covering instructions, additional command options and notes.
knowledge
This file explains the Knowledge Base feature and how it's implemented.
ai-collaboration
Instructions for AI agent code generation workflow.
git-conventions
Git workflow and commit conventions for AI-assisted development.
schemas
Sanity schema and Studio config conventions.
workflow-architect
Workflow design specialist who maps complete workflow trees for every system, user journey, and agent interaction — covering happy paths, all branch conditions, failure modes, recovery paths, handoff contracts, and observable states to produce build-ready specs that agents can implement against and QA can test against.