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/mikesquared-agency/cortex/cursorrulesgit clone --depth 1 https://github.com/MikeSquared-Agency/cortexWhat 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 | $0.00777 | $0.00777 |
| Opus 5 | $0.00388 | $0.00388 |
| Sonnet 5 | $0.00155 | $0.00155 |
| Haiku 4.5 | $0.00078 | $0.00078 |
Grade A, and why
cursorrules 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.
How it starts
The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — Cortex Agent Guide
What is this?
Cortex is an embedded graph memory engine for AI agents. Rust, redb (embedded DB), gRPC + HTTP APIs, vector search (HNSW), auto-linking.
Repo structure
crates/
cortex-core/ — Storage, graph, vector, auto-linker, types. The library.
cortex-server/ — gRPC/HTTP server, CLI, config. The binary.
cortex-client/ — Rust gRPC client crate.
cortex-proto/ — Protobuf definitions + generated code.
warren-adapter/ — Optional Warren integration (feature-gated).
sdks/
typescript/ — @cortex/client npm package
python/ — cortex-memory PyPI package
go/ — Go client module
specs/ — Design specs (tagged IMPLEMENTED/DEFERRED)
docs/ — User-facing documentation
examples/ — Integration examples (LangChain, CrewAI, etc.)
Build & test
cargo test --workspace # All 176 tests
cargo test --workspace --no-default-features # Without warren adapter
cargo build -p cortex-server --release # Release binary
cargo clippy --workspace # Lint
Run
cortex init # Create cortex.toml
cortex serve # Start server (gRPC :9090, HTTP :9091)
cortex node create --kind fact --title "..."
cortex search "query"
cortex briefing <agent-id>
cortex shell # Interactive REPL
Key types
NodeKind/Relation— validated string newtypes (not enums)Cortex::open(path)— library mode, no server neededStoragetrait —RedbStorageimplements itIngestAdaptertrait — pluggable event sources- Config:
cortex.tomlwith#[serde(default)]on all structs
Architecture decisions
- redb for storage (embedded, ACID, zero-copy mmap)
- HNSW for vector search (instant-distance crate)
- gRPC (tonic) for production API, HTTP (axum) for debug/viz
- warren-adapter is optional (
--features warren), cortex-core has zero network deps - Auto-linker runs background loop: similarity rules → edges, decay → prune, dedup → merge
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 · 88 lines · 777 tokens per session scan A 145806383846
cursorrules is a cursor rule published in the GitHub repository MikeSquared-Agency/cortex (11 stars, last pushed 1mo ago), licensed MIT. It adds 777 tokens to every session, about $0.0039 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
angular-20
This rule provides comprehensive best practices and coding standards for Angular development, focusing on modern TypeScript, standalone components, signals, and performance optimizations.
dev-standard
Apache Superset development standards and guidelines for Cursor IDE.
typescript
Changes to these high-fan-out internals can affect every message, delta, element, or rerun. Keep work in them minimal, and benchmark changes with representative stress-test apps.
coolify-ai-docs
Master reference to all Coolify AI documentation in .ai/ directory.
python_lib
Tips and guidelines specific to the development of the Streamlit Python library, not applicable to scripts and e2e tests.
specs
This directory contains product and tech specs for Streamlit features.