What is dfs-engine AGENTS.md?

Repository instructions for a sports betting and daily fantasy sports codebase organized as an npm workspaces monorepo, where multiple packages live in one repository.

Use them when changing the Buzzr packages, their APIs, package relationships, or the repository's TypeScript and npm workspace structure.

They document package boundaries, public entry points, and rules that help coding agents avoid unsupported imports or breaking core-engine assumptions.

How Buzzr-app/dfs-engine configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to Buzzr-app/dfs-engine. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/Buzzr-app/dfs-engine/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/Buzzr-app/dfs-engine

Made for: Codex, OpenCode.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/buzzr-app/dfs-engine/agents-md/github.svg)](https://agentmods.dev/instructions/buzzr-app/dfs-engine/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/buzzr-app/dfs-engine/agents-md"><img src="https://agentmods.dev/badge/instructions/buzzr-app/dfs-engine/agents-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/buzzr-app/dfs-engine/agents-md"><img src="https://agentmods.dev/badge/instructions/buzzr-app/dfs-engine/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,643 This file is loaded in full into every session.

When invoked 1,643 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.01643	$0.01643
Opus 5.5	$0.00657	$0.00657
Sonnet 5.5	$0.00329	$0.00329
Haiku 4.5	$0.00164	$0.00164

Measured 2mo ago against content hash 5b81a1c03572, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dfs-engine AGENTS.md 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 2mo 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.

AGENTS.md · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Buzzr Sports Engines

Guidance for AI coding agents working in this monorepo or consuming the published @buzzr/* packages.

What this repo is

An npm workspaces monorepo (packages/*) publishing ten TypeScript packages for sports betting / DFS apps: three pure core engines, one stdio MCP server, one filesystem CLI, and five provider/UI/testing satellites. The core engines perform no I/O and have zero external runtime dependencies. Boundary packages have explicit jobs: the CLI reads files, provider packages call consumer-supplied loaders, and the MCP server uses the official MCP SDK plus Zod.

Package map and API entry points

Each package's public API is exactly what packages/<name>/src/index.ts exports. Do not import from deep paths — only the package root is a supported entry point.

Package	Directory	Primary entry points
`@buzzr/dfs-engine`	`packages/dfs-engine`	`createDfsEngine`, `defineStatProvider`, `defineBookPolicy`, `engine.settleEntry`, `engine.settleEntries` (v5 batch)
`@buzzr/bets-core`	`packages/bets-core`	`calculateNoVigFairLine`, `combineAmericanOdds`, `calculateParlayFairValue`, `calculateExpectedValue`, `calculateKellyStake`, `calculateClosingLineValue`, `calculateRollupByPeriod`
`@buzzr/entertainment-engine`	`packages/entertainment-engine`	`resolveBuzzScores`, `enrichGameRowWithBuzzScores`, `isMustWatch`, `rankGamesForUser`
`@buzzr/mcp`	`packages/mcp`	MCP server, bins `mcp` / `buzzr-mcp`, 11 tools over the three engines
`@buzzr/dfs-cli`	`packages/dfs-cli`	bin `dfs-grade`; `runGrade`, `runGradeFromFiles`
`@buzzr/dfs-react`	`packages/dfs-react`	`getSlipDisplayModel`, `getStatusTone`, `formatLegLabel`, `formatLegLine`
`@buzzr/dfs-testkit`	`packages/dfs-testkit`	`makeDfsEntry`, `makeDfsLeg`, `makeGameLogEntry`, `createMockStatProvider`, `makeInvalidDfsEntry`
`@buzzr/dfs-provider-espn`	`packages/dfs-provider-espn`	`createEspnStatProvider`
`@buzzr/dfs-provider-sportradar`	`packages/dfs-provider-sportradar`	`createSportradarStatProvider`, `sportradarRowToGameLog`
`@buzzr/dfs-engine-test-vectors`	`packages/dfs-engine-test-vectors`	`TEST_VECTORS` engine regression fixtures

Read the full file on GitHub · 74 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.

2mo ago First seen · 74 lines · 1,643 tokens per session scan A 5b81a1c03572

Subscribe to this mod's changes

dfs-engine AGENTS.md is an instructions file published in the GitHub repository Buzzr-app/dfs-engine (1 stars, last pushed 1mo ago), licensed MIT. It adds 1,643 tokens to every session, about $0.0066 per session on Opus 5.5. 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 2026-08-31.

Backend and APIs TypeScript buzzr dfs monorepo sportsbook vitest

dfs-engine AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
dfs-engine AGENTS.mdBuzzr-app/dfs-engine	Instructions file	1	1mo ago	MIT	A	1,643	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

dfs-engine: Instructions file for Codex