analytics-stub-api

analytics-stub-api is a cursor rule for Cursor from brendadeeznuts1111/betting-brain-v3. It costs 0 tokens per session (1,618 once invoked), scanned A, original, MIT.

A testing interface for an analytics data service, represented by an in-memory stub instead of a real service. It records data points so tests can inspect their fields, tags, and timestamps.

In plain words
What is it for?
Use it to record analytics calls during tests, count them, retrieve them, and filter them by stored content.
Why use it?
It lets tests check analytics behavior without sending data over the network or relying on an external service. This makes those tests easier to run repeatedly.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is import { expectAnalyticsCall } from '../utils/test-helpers';.

Good fit Use it to record analytics calls during tests, count them, retrieve them, and filter them by stored content.

Compare 6 cursor rules from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/brendadeeznuts1111/betting-brain-v3
agentmods
npx agentmods add rules/brendadeeznuts1111/betting-brain-v3/analytics-stub-api

Made for: Cursor.

Wrote 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.

agentmods badge for analytics-stub-api

README.md
[![agentmods](https://agentmods.dev/badge/rules/brendadeeznuts1111/betting-brain-v3/analytics-stub-api/github.svg)](https://agentmods.dev/rules/brendadeeznuts1111/betting-brain-v3/analytics-stub-api)
Your own site
<a href="https://agentmods.dev/rules/brendadeeznuts1111/betting-brain-v3/analytics-stub-api"><img src="https://agentmods.dev/badge/rules/brendadeeznuts1111/betting-brain-v3/analytics-stub-api/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.

agentmods 80×15 button for analytics-stub-api

Your own site · 80×15
<a href="https://agentmods.dev/rules/brendadeeznuts1111/betting-brain-v3/analytics-stub-api"><img src="https://agentmods.dev/badge/rules/brendadeeznuts1111/betting-brain-v3/analytics-stub-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 1,618 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.01618
Opus 5 $0.00000 $0.00809
Sonnet 5 $0.00000 $0.00324
Haiku 4.5 $0.00000 $0.00162

Measured 9d ago against content hash 6d28aa60e8cd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

analytics-stub-api 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.

.cursor/rules/analytics-stub-api.mdc · 277 lines

How it starts

The opening of the file, as written. The whole thing — 277 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AnalyticsEngineStub API Rules

Core Interface

AnalyticsCall Interface


export interface AnalyticsCall {
  blobs: string[];
  doubles: number[];
  tags?: Record<string, string>;
  timestamp: number;
}

AnalyticsEngineStub Class


export class AnalyticsEngineStub {
  private calls: AnalyticsCall[] = [];
  private flushPromises: Promise<void>[] = [];

  async writeDataPoint(data: {
    blobs: string[];
    doubles: number[];
    tags?: Record<string, string>;
  }): Promise<void> {
    // Implementation
  }
}

Core Methods

writeDataPoint


// ✅ CORRECT: Standard analytics call
await analytics.writeDataPoint({
  blobs: ['event_type', 'data_type'],
  doubles: [1.5, 1000],
  tags: { source: 'test', version: '1.0' }
});

getCalls


// ✅ CORRECT: Get all calls
const calls = analytics.getCalls();
expect(calls).toHaveLength(1);
expect(calls[0].blobs).toEqual(['event_type', 'data_type']);

callCount

// ✅ CORRECT: Count calls
expect(analytics.callCount()).toBe(1);

Filtering Methods

callsWithBlob

// ✅ CORRECT: Filter by blob content
const eventCalls = analytics.callsWithBlob('event_type');
expect(eventCalls).toHaveLength(1);

callsWithTag

// ✅ CORRECT: Filter by tag
const sourceCalls = analytics.callsWithTag('source', 'test');
expect(sourceCalls).toHaveLength(1);

wasCalledWith

// ✅ CORRECT: Check specific call
expect(analytics.wasCalledWith({
  blobs: ['event_type', 'data_type'],
  doubles: [1.5, 1000]
})).toBe(true);

Utility Methods

clearCalls

// ✅ CORRECT: Clear all calls
analytics.clearCalls();
expect(analytics.callCount()).toBe(0);

getStats

// ✅ CORRECT: Get call statistics
const stats = analytics.getStats();
expect(stats.totalCalls).toBe(1);
expect(stats.averageDoublesPerCall).toBe(2);

flush

// ✅ CORRECT: Flush analytics (auto-called)
analytics.flush();

Read the full file on GitHub · 277 lines

Changes

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.

  1. 9d ago First seen · 277 lines · 0 tokens per session scan A 6d28aa60e8cd

Subscribe to this mod's changes

analytics-stub-api is a cursor rule published in the GitHub repository brendadeeznuts1111/betting-brain-v3 (8 stars, last pushed 11mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,618 tokens. 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 2026-08-31.