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/Michael-Obele/sepiaWrote 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/michael-obele/sepia/cursor)<a href="https://agentmods.dev/rules/michael-obele/sepia/cursor"><img src="https://agentmods.dev/badge/rules/michael-obele/sepia/cursor/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/michael-obele/sepia/cursor"><img src="https://agentmods.dev/badge/rules/michael-obele/sepia/cursor.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 | $0.01657 | $0.01657 |
| Opus 5.5 | $0.00663 | $0.00663 |
| Sonnet 5.5 | $0.00331 | $0.00331 |
| Haiku 4.5 | $0.00166 | $0.00166 |
Grade C, and why
cursor scanned grade C with 1 finding 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 16d 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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- Source of truth: src/instructions.ts (MEMORY_CONTRACT). Keep in sync. --> The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 16d ago Changed f90c08311e85
- 17d ago Changed · +1 lines · +140 tokens per session b25a95cf28d6
- 28d ago Changed c7743b8c8a41
- 1mo ago Changed 83e3d58ee7a7
- 1mo ago Changed · +90 tokens per session 9856e08f0231
- 1mo ago Changed 6d57b1cb92f0
- 1mo ago Changed · +5 lines · +245 tokens per session 1de4cf655b42
- 1mo ago Changed 616920a117d4
- 1mo ago Changed · +2 lines · +58 tokens per session d7a3b06a6b79
- 1mo ago First seen · 45 lines · 1,124 tokens per session scan C 7ba2cae2f793
cursor is a cursor rule published in the GitHub repository Michael-Obele/sepia (5 stars, last pushed 16d ago), licensed AGPL-3.0. It adds 1,657 tokens to every session, about $0.0066 per session on Opus 5.5. A static security scan graded it C with 1 finding (hidden instructions). 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
memory-bank-key
Memory-Bank key: de83ede7-85de-4746-86c7-c2dafefc3fb7.
testing
Shared Svelte testing guidance.
cursor-memory
Shokunin memory system: persistent context across sessions.
main
🚨 CRITICAL RULE: MEMORY BANK CREATION IS MANDATORY 🚨 Memory Bank MUST be created BEFORE any other operation in ANY mode NO process can continue without verifying Memory Bank existence.
memory-bank-paths
Defines canonical paths for core Memory Bank files.
php-types-validation
Guidelines for type definitions and validation in PHP MCP SDK.