What is datagsm-server copilot-instructions.md?

A project instruction file for a multi-module Kotlin and Spring Boot school-information API. It tells a coding agent how the project is organised, which tools it uses, and to respond in Korean.

It helps with API development, authentication, database work, testing, and navigating the separate project modules.

It gives the agent project-specific context instead of making it infer the structure and conventions. This helps keep code suggestions, reviews, and commands consistent with the repository.

How themoment-team/datagsm-server configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to themoment-team/datagsm-server. 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/themoment-team/datagsm-server/master/.github/copilot-instructions.md

Clone the repo

git clone --depth 1 https://github.com/themoment-team/datagsm-server

Made for: GitHub Copilot.

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/themoment-team/datagsm-server/copilot-instructions/github.svg)](https://agentmods.dev/instructions/themoment-team/datagsm-server/copilot-instructions)

Your own site

<a href="https://agentmods.dev/instructions/themoment-team/datagsm-server/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/themoment-team/datagsm-server/copilot-instructions/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/themoment-team/datagsm-server/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/themoment-team/datagsm-server/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,212 This file is loaded in full into every session.

When invoked 1,212 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	$0.01212	$0.01212
Opus 5.5	$0.00485	$0.00485
Sonnet 5.5	$0.00242	$0.00242
Haiku 4.5	$0.00121	$0.00121

Measured 29d ago against content hash 5deb4d270c57, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

datagsm-server 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 29d 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.

.github/copilot-instructions.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DataGSM Copilot Instructions

Please provide all code suggestions, reviews, and responses in Korean (한국어).

Project Overview

DataGSM is a Spring Boot REST API service providing school information (students, clubs, meals, schedules) for Gwangju Software Meister High School. Uses Google OAuth2 authentication with JWT token and API key management.

Tech Stack

Kotlin with Spring Boot 4.0, Spring Security, Spring Data JPA
MySQL (main data), Redis (caching, sessions)
QueryDSL for complex queries, OpenFeign for external APIs
Jackson 3.0 for JSON processing
Kotest + MockK + JUnit 5 for testing (Given-When-Then style)

Project Structure (Multi-module)

datagsm-common/: Shared library (Entity, DTO, Repository, Config, Health API)
datagsm-oauth-authorization/: OAuth2 authentication, account lifecycle (signup, password reset)
datagsm-oauth-userinfo/: OAuth2 UserInfo endpoint (external clients)
datagsm-openapi/: Public API — read and write (students, clubs, projects, NEIS)
datagsm-web/: Web service API (user features, admin features, Excel)
datagsm-shared/: Kotlin Multiplatform module — published type definitions (Maven + npm)
datagsm-ksp-processor/: KSP processor — generates KMP/TypeScript types from @KmpExport
Each service module: controller/, service/, repository/, entity/, dto/

Commands

Build: ./gradlew build
Test: ./gradlew test
Format: ./gradlew ktlintFormat
Run: ./gradlew :datagsm-{module}:bootRun

Coding Conventions

Use Kotlin idioms: val over var, null safety, extension functions
Naming: PascalCase (classes), camelCase (functions/variables), Request/Response DTO suffix (e.g., UserReqDto, UserResDto)
Follow KtLint rules
Architecture: Controller → Service (interface + impl) → Repository pattern
Always use constructor injection for dependencies
Separate Entity and DTO clearly
Do NOT add excessive comments - only where logic is not self-evident
Write services in student/club/project domains must publish EventDispatchRequested (enforced by EventDispatchConventionTest)

Read the full file on GitHub · 106 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.

29d ago First seen · 106 lines · 1,212 tokens per session scan A 5deb4d270c57

Subscribe to this mod's changes

datagsm-server copilot-instructions.md is an instructions file published in the GitHub repository themoment-team/datagsm-server (29 stars, last pushed yesterday), licensed MIT. It adds 1,212 tokens to every session, about $0.0048 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 2026-10-08.

Backend and APIs Languages kotlin multi-module mysql redis spring-boot spring-data

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datagsm-server: Instructions file for GitHub Copilot