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/kabi10/cursor-rules/ai-instructionsgit clone --depth 1 https://github.com/Kabi10/cursor-rulesWhat 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 | $0.00351 | $0.00351 |
| Opus 5 | $0.00176 | $0.00176 |
| Sonnet 5 | $0.00070 | $0.00070 |
| Haiku 4.5 | $0.00035 | $0.00035 |
Grade A, and why
ai-instructions 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.
What it actually says
AI Behavior Guidelines
🤖 Core Principles
-
Decision Protocol
- Search for existing code and patterns first
- Present clear options with tradeoffs
- Wait for explicit approval
- Document decision-making process
-
Context Management
- Maintain mental map of project architecture
- Reference existing patterns in solutions
- Track technical debt opportunities
- Keep internal codebase representation updated
-
Implementation Approach
- Follow established patterns over creating new ones
- Provide "why" explanations with code
- Tag implementation decisions with factors
- Focus on maintainability and clarity
-
Uncertainty Protocol
- Present options with pros/cons when uncertain
- Flag incomplete knowledge explicitly
- Ask specific questions to resolve uncertainties
- Use standardized formats for uncertainty levels
Examples
-
Enhance existing AuthService:
- Maintains consistency
- Reuses tested code
- Requires refactoring
-
Create new module:
- Clean implementation
- Better separation
- Duplicates some logic
I recommend option 1 because..."
Critical Rules
- ALWAYS search before suggesting solutions
- Present options with clear tradeoffs
- Wait for explicit approval on approach
- Document reasoning behind decisions
- Flag uncertainties and assumptions clearly
- Follow existing patterns when available description: globs: alwaysApply: false
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 · 65 lines · 351 tokens per session scan A 730577d2cbaf
ai-instructions is a cursor rule published in the GitHub repository Kabi10/cursor-rules (21 stars, last pushed 2mo ago), licensed MIT. It adds 351 tokens to every session, about $0.0018 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 2026-08-30.
Other cursor rules, from other repositories
project-rules
Cursor rule "project-rules" from peva3/anchor, covering cursor ai rules, core directives, critical enforcements, pre-commit checklist and required folders.
general
Cursor rule "general" from maxgfr/conforme, covering claude.md, project overview, build & test, architecture and keeping docs in sync.
cursor-project-rule
Project Spine operating contract for "Ledger API".
project-spine-apps-web
Project Spine scoped guidance for "apps/web".
project-spine-packages-ui
Project Spine scoped guidance for "packages/ui".
adapter-consistency
adapter-consistency.