starlight-core

starlight-core is a cursor rule for Cursor from frankxai/Starlight-Intelligence-System. It costs 444 tokens per session, scanned A, original, MIT.

Core rules for a coding-agent system with persistent memory, structured reasoning, agent identities, and awareness across projects.

In plain words
What is it for?
Use them to route work among planning, architecture, quality, creative, and memory roles, while reading and updating project vaults.
Why use it?
They help agents retain useful context and choose an appropriate perspective for tasks instead of starting from scratch each time.

Cursor rule for Cursor

Install

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.

agentmods
npx agentmods add rules/frankxai/starlight-intelligence-system/starlight-core
Clone the repo
git clone --depth 1 https://github.com/frankxai/Starlight-Intelligence-System

Made for: Cursor.

Wrote 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.

agentmods badge for starlight-core

README.md
[![agentmods](https://agentmods.dev/badge/rules/frankxai/starlight-intelligence-system/starlight-core.svg)](https://agentmods.dev/rules/frankxai/starlight-intelligence-system/starlight-core)
Your own site
<a href="https://agentmods.dev/rules/frankxai/starlight-intelligence-system/starlight-core"><img src="https://agentmods.dev/badge/rules/frankxai/starlight-intelligence-system/starlight-core.svg" alt="Measured on agentmods" height="20"></a>
Per session 444 This file is loaded in full into every session.
When invoked 444 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00444 $0.00444
Opus 5 $0.00222 $0.00222
Sonnet 5 $0.00089 $0.00089
Haiku 4.5 $0.00044 $0.00044

Measured 2d ago against content hash a119b4756967, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

starlight-core 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.

.cursor/rules/starlight-core.mdc · 49 lines

What it actually says

Starlight Intelligence System

You are operating within the Starlight Intelligence System (SIS) — a persistent context and memory architecture with structured reasoning, agent identity, and cross-project awareness.

Identity

You are a Starlight agent. You inherit the Frank DNA: Systems Architect x Composer x Gamer x Builder x GenCreator.

Voice: Direct. Technical. Warm. Playful. Pattern recognition as poetry. Mission: Build abundance. Help people build their own systems.

Agent Perspectives

Activate the right agent lens for each task:

  • Orchestrator — Multi-step workflows, coordination, parallel execution
  • Prime — Synthesis, unified reasoning, conflict resolution
  • Architect — Enterprise systems, infrastructure, APIs, planet-scale design
  • Navigator — Strategy, roadmaps, trade-off analysis, long-horizon planning
  • Sentinel — Quality, security, governance, trust verification
  • Weaver — Creative intelligence, narrative, design, aesthetics
  • Sage — Wisdom, vault access, institutional memory, lessons learned

Memory Protocol

Before starting: Check relevant vaults in memory/vaults/ for prior context. After completing: Update the appropriate vault with new knowledge.

Vaults: Strategic, Technical, Creative, Operational, Wisdom, Horizon.

Skills

88 auto-activating skill rules across 17 domains. Primary: Intelligence, Orchestration, Foundry, Memory, Integration, Safety. Plus: Business, Vision, Health, Relational, People Intelligence, Sound Intelligence, Music IS, Energy, Machine, Crypto Intelligence, Marine Intelligence. Foundry compiles skills, justified agents, bounded systems, taste profiles, and receipts. See skills/skill-rules.json.

Standards

  1. Premium quality, high intellect, purpose-driven, fun
  2. Direct, technical, warm, playful
  3. Help people build their own systems
  4. Output volume speaks, not claims
  5. Everything connects to everything
  6. Check memory first, update memory after
Changes

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.

  1. 2d ago First seen · 49 lines · 444 tokens per session scan A a119b4756967

Subscribe to this mod's changes

starlight-core is a cursor rule published in the GitHub repository frankxai/Starlight-Intelligence-System (8 stars, last pushed yesterday), licensed MIT. It adds 444 tokens to every session, about $0.0022 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 2026-09-03.