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/michael-obele/sepia/cursorgit clone --depth 1 https://github.com/Michael-Obele/sepiaWhat 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 | $0.00841 | $0.00841 |
| Opus 5 | $0.00420 | $0.00420 |
| Sonnet 5 | $0.00168 | $0.00168 |
| Haiku 4.5 | $0.00084 | $0.00084 |
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 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.
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.
- 2d ago First seen · 35 lines · 841 tokens per session scan C 889eab51698a
cursor is a cursor rule published in the GitHub repository Michael-Obele/sepia (3 stars, last pushed 4d ago), licensed AGPL-3.0. It adds 841 tokens to every session, about $0.0042 per session on Opus 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
testing
Comprehensive Testing Best Practices for Svelte 5 + vitest-browser-svelte.
cursorrules
Comprehensive Testing Best Practices for Svelte 5 + vitest-browser-svelte.
atelier
Atelier UI/UX and Backend Architecture Quality Gate.
cursor_conductor_tasks_workflow
Cursor rule "cursor_conductor_tasks_workflow" from hridaya423/conductor-tasks, covering conductor tasks: comprehensive ai development workflow, primary interaction: mcp server vs. cli, standard development workflow process (ai-driven), task complexity analysis (conceptual) and task breakdown process (using…
cursor_dev_workflow
Cursor rule "cursor_dev_workflow" from hridaya423/conductor-tasks, covering cursor development workflow with conductor tasks, leveraging cursor's ai features for task implementation, integrating conductor tasks into cursor's flow and ai-specific reminders in cursor.
cursor_conductor_task_management
description: Best practices for effective task management with Conductor Tasks in an AI-assisted workflow globs: / alwaysApply: true.