Borrowing it
Nothing to install: this file belongs to chrisreddington/turn-based-game-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/chrisreddington/turn-based-game-mcp/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/chrisreddington/turn-based-game-mcpWrote 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.
[](https://agentmods.dev/instructions/chrisreddington/turn-based-game-mcp/copilot-instructions)<a href="https://agentmods.dev/instructions/chrisreddington/turn-based-game-mcp/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/chrisreddington/turn-based-game-mcp/copilot-instructions.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00662 | $0.00662 |
| Opus 5 | $0.00331 | $0.00331 |
| Sonnet 5 | $0.00132 | $0.00132 |
| Haiku 4.5 | $0.00066 | $0.00066 |
Grade A, and why
turn-based-game-mcp copilot-instructions.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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Turn-Based Games Platform
Purpose
These instructions guide Copilot across all files in this monorepo. Language-specific and framework-specific rules are in separate instruction files under .github/instructions/.
Repository Structure
shared/- Core game logic, types, and SQLite storage (TypeScript library)web/- Next.js 15 frontend with API routes (React + TailwindCSS)mcp-server/- Model Context Protocol server providing AI opponents (Node.js service)
Code Standards
Required Before Each Commit
- Run
npm run lintto check for linting issues - Run
npm run testto ensure all tests pass - Build shared package first when making cross-package changes
Development Flow
- Build shared:
npm run build --workspace=shared(always run first) - Dev web:
npm run dev --workspace=web(starts Next.js on port 3000) - Dev MCP:
npm run dev --workspace=mcp-server(starts MCP server via stdio) - Full test:
npm run test(runs all workspace tests) - Full lint:
npm run lint(runs all workspace linting)
Database
- SQLite file location:
web/games.db(default) - Controlled by
GAMES_DB_PATHenvironment variable
Architecture Guidelines
Service Boundaries
- MCP server communicates with web app via HTTP calls to
/api/games/*endpoints - MCP server never accesses the database directly
- Web app uses direct SQLite access via
shared/src/storage/sqlite-storage.ts
Game Interface
All games implement Game<TGameState, TMove> interface in shared/src/types/game.ts:
// Required methods for all game implementations
validateMove(state, move) // Check if move is legal
applyMove(state, move) // Apply move and return new state
checkGameEnd(state) // Determine win/draw/continue
getValidMoves(state) // Get available moves
getInitialState(config) // Create starting game state
API Routes Pattern
- Create/list games:
web/src/app/api/games/[game-type]/route.ts - Make moves:
web/src/app/api/games/[game-type]/[id]/move/route.ts
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.
- 7d ago First seen · 79 lines · 662 tokens per session scan A 062bde706214
turn-based-game-mcp copilot-instructions.md is an instructions file published in the GitHub repository chrisreddington/turn-based-game-mcp (31 stars, last pushed 3d ago), licensed MIT. It adds 662 tokens to every session, about $0.0033 per session on Opus 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 2026-08-30.
Other instructions, from other repositories
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.