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/axiosleo/node-koapp/project-structuregit clone --depth 1 https://github.com/AxiosLeo/node-koappWhat 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 | $0.00307 | $0.00307 |
| Opus 5 | $0.00153 | $0.00153 |
| Sonnet 5 | $0.00061 | $0.00061 |
| Haiku 4.5 | $0.00031 | $0.00031 |
Grade A, and why
project-structure 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 yesterday.
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
@axiosleo/koapp Project Structure
This is a Node.js web framework built on Koa.js for rapid application development.
Core Architecture
The main entry point is index.js, which exports all framework components:
- Applications: KoaApplication, SocketApplication, WebSocketApplication
- Core Classes: Router, Controller, Model
- Utilities: Response helpers, middlewares, context initialization
Key Directories
src/- Framework source codeapps/- Application types (Koa, Socket, WebSocket)workflows/- Request processing workflowsmiddlewares/- Custom middleware implementations
assets/- Templates and static assetstmpl/- Project scaffolding templates
commands/- CLI command implementationstests/- Test files and examplesbin/- Executable CLI entry point
Application Types
- KoaApplication - Standard HTTP web server (extends Application)
- SocketApplication - TCP socket server (extends Application)
- WebSocketApplication - Native WebSocket server (extends SocketApplication)
KoaApplication and SocketApplication extend the base Application class. WebSocketApplication extends SocketApplication, inheriting connection management methods.
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.
- yesterday First seen · 37 lines · 307 tokens per session scan A 070fd07e74e6
project-structure is a cursor rule published in the GitHub repository AxiosLeo/node-koapp (129 stars, last pushed 18d ago), licensed MIT. It adds 307 tokens to every session, about $0.0015 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.
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