Context Analysis Plugin

Token usage tracking and cost estimation for OpenSIN CLI.

Overview

Tracks token usage per turn, session-level statistics, and cost estimation.

Installation

bun add @opensin/plugin-context-analysis

Usage

import { ContextAnalysisPlugin, estimateCost } from '@opensin/plugin-context-analysis';

const plugin = new ContextAnalysisPlugin('session-1');
plugin.recordTurn(1000, 500);
plugin.recordTurn(2000, 1000);

const stats = plugin.getTokenUsage();
console.log(`Total: ${stats.totalTokens} tokens`);

const cost = plugin.getCostEstimate();
console.log(`Cost: ${cost.totalCost} ${cost.currency}`);

API

estimateCost(inputTokens, outputTokens, config): CostEstimate

Estimate cost for token usage.

ContextAnalysisPlugin

Class with recordTurn(), getTokenUsage(), getCostEstimate(), getTurnCost(), reset(), getConfig(), setConfig() methods.

Testing

bun test
# 11 tests passing

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Relevante Mandate

Mandat	Priority	Regel
Bun-Only	-1.5	bun install / bun run statt npm
Annahmen-Verbot	-5.0	KEINE Diagnose ohne Beweis
Test-Beweis-Pflicht	0.0	KEIN "Done" ohne echten Test-Lauf

→ Alle Mandate