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Module VC-09VIBECODE

Summarize Product Analytics

VIBECODE • Vibe Coding: AI-First Software Delivery

Browser-only practice

Problem Statement

Stage: Capstone: Ship and Learn

The capstone needs observable evidence rather than intuition.

Deliverable

Event counts and average duration in milliseconds.

Input and output contract

Read event|duration records; group by event, sort by event, and print count plus rounded integer average.

Acceptance criteria

  1. Ignore malformed durations.
  2. Round averages using half-up behavior.
  3. Sort event names.

Suggested vibe loop

Read AGENTS.md, connect your Ollama or OpenAI-compatible provider in the browser, and ask the agent to restate the contract and make one small verifiable change. Watch edits stream into app.py while the editor is locked, then review the result and run the visible example. Keep the checkpoint when the evidence is correct or use Undo to restore it. The browser-client agent does not require an administrator gateway or API key.

Constraints

Use Python 3 standard library only. Read and follow AGENTS.md, keep main.py as the entry point, and implement solve(raw) in app.py.

Sample Testcases

Submit runs every public testcase in this browser. Results and code never leave this device.

Sample #1
Public sample
Input
open|100
save|250
open|200
Output
open count=2 avg=150ms
save count=1 avg=250ms
Explanation
Summarizes product behavior.

Web terminal

C, C++, Java, and Python run locally in a browser VM. No worker or visualizer is used.

Saved in this browser
Editor settings