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 skills add aj-geddes/useful-ai-prompts --skill polyglot-integrationgit clone --depth 1 https://github.com/aj-geddes/useful-ai-promptsWrote 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/skills/aj-geddes/useful-ai-prompts/polyglot-integration)<a href="https://agentmods.dev/skills/aj-geddes/useful-ai-prompts/polyglot-integration"><img src="https://agentmods.dev/badge/skills/aj-geddes/useful-ai-prompts/polyglot-integration/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/skills/aj-geddes/useful-ai-prompts/polyglot-integration"><img src="https://agentmods.dev/badge/skills/aj-geddes/useful-ai-prompts/polyglot-integration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
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 | $0.00037 | $0.00602 |
| Opus 5 | $0.00018 | $0.00301 |
| Sonnet 5 | $0.00007 | $0.00120 |
| Haiku 4.5 | $0.00004 | $0.00060 |
Grade A, and why
polyglot-integration 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 9d 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 — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Polyglot Integration
Table of Contents
Overview
Integrate code written in different programming languages to leverage their unique strengths and ecosystems.
When to Use
- Performance-critical code in C/C++/Rust
- ML models in Python from other languages
- Legacy system integration
- Leveraging language-specific libraries
- Microservices polyglot architecture
Quick Start
Minimal working example:
// addon.cc
#include <node.h>
namespace demo {
using v8::FunctionCallbackInfo;
using v8::Isolate;
using v8::Local;
using v8::Object;
using v8::String;
using v8::Value;
using v8::Number;
void Add(const FunctionCallbackInfo<Value>& args) {
Isolate* isolate = args.GetIsolate();
if (args.Length() < 2) {
isolate->ThrowException(v8::Exception::TypeError(
String::NewFromUtf8(isolate, "Wrong number of arguments")));
return;
}
if (!args[0]->IsNumber() || !args[1]->IsNumber()) {
isolate->ThrowException(v8::Exception::TypeError(
String::NewFromUtf8(isolate, "Arguments must be numbers")));
// ... (see reference guides for full implementation)
Reference Guides
Detailed implementations in the references/ directory:
| Guide | Contents |
|---|---|
| Node.js Native Addons (C++) | Node.js Native Addons (C++) |
| Python from Node.js | Python from Node.js |
| Rust from Python (PyO3) | Rust from Python (PyO3) |
| gRPC Polyglot Communication | gRPC Polyglot Communication |
| Java from Python (Py4J) | Java from Python (Py4J) |
Best Practices
✅ DO
- Use appropriate IPC mechanism
- Handle serialization carefully
- Implement proper error handling
- Consider performance overhead
- Use type-safe interfaces
- Document integration points
What ships with it
7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago First seen · 93 lines · 37 tokens per session scan A 0aaf62d96a1b
polyglot-integration is a skill published in the GitHub repository aj-geddes/useful-ai-prompts (338 stars, last pushed 6mo ago), licensed MIT. It adds 37 tokens to every session and 602 once invoked, about $0.0002 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.
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