Agentic IPL analyst · 2024 & 2025
Agentic IPL Analyst — GDG Baroda Hackathon
A question goes through three hops before an answer appears.
User asks a question
Browser sends the query to /api/ask as a GET request, opening an SSE stream.
Agent loop — up to 5 rounds
The Cloudflare Worker runs an async generator. Round 0 forces a tool call (tool_choice: "required") so the model can never guess. Subsequent rounds are auto with JSON output mode.
Tool execution — pure JS, in-memory
Each tool call runs synchronously over 34,388 deliveries bundled as an ES module. Zero network round-trips. Results are appended back into the conversation.
Azure OpenAI — gpt-5.4-mini
Uses the Responses API (/openai/responses), not Chat Completions. System prompt goes into instructions, tool results as function_call_output items.
SSE → Answer card
The Worker streams tool_call events (chips animate in real-time) then a final event with a structured JSON payload — headline, insight, chart, sources, follow-ups.
Every layer runs at the edge. No servers. No databases.
Cloudflare Workers
Serverless edge runtime. Handles routing, SSE streaming via TransformStream, and serves static assets — all from a single Worker.
Azure OpenAI — gpt-5.4-mini
Latest model via the Responses API. Native function calling, structured JSON output, and instructions field for system prompts.
Static JSON as ES Module
The entire 34 k-delivery dataset is bundled into the Worker as import data from "./data.json". 12 MB raw, 306 KB gzip — well within Worker limits.
Vanilla JS + Tailwind CDN
Zero build step, zero framework. SSE via EventSource, SVG charts hand-rolled, player name linkification with regex — all in plain JS.
Six pure-JS functions. No async. No I/O. The agent picks which to call.
get_player_stats
Batting and bowling splits for any player — filterable by season (2024/2025), phase (powerplay/middle/death), and opponent team.
compare_players
Side-by-side comparison of 2–4 players on a chosen metric (strike rate, economy, average, wickets…). Drives most "X vs Y" questions.
find_matches
Looks up matches by season, stage (Final, Qualifier), or team. Called first for "Who won IPL 2024?" style questions to get the right match ID before fetching context.
match_context
Full match summary — teams, venue, innings totals, wickets, result — for a given Cricsheet match ID.
clutch_index
Composite 0–100 pressure score. Weights death-overs performance (40%), boundary/dot % under pressure (30%), and sample-size confidence (30%). Answers "Was X clutch?"
head_to_head
Batter vs bowler matchup — balls faced, runs, dismissals, strike rate. Filterable by season.
Ball-by-ball Cricsheet data, flattened and bundled at build time.
145
Matches
34,388
Deliveries
222
Players
Row schema
Source: cricsheet.org · Flattened by scripts/flatten.js
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