copilot-setting: Instructions file for GitHub Copilot

Global Copilot Instructions

Language & Communication

• Always respond in Traditional Chinese (繁體中文).
• Code, variable names, comments, and commit messages must be in English.
• Keep responses concise and direct.

Tech Stack

• Java 8 — WAR packaging, deployed to servlet container (not embedded server)
• Maven
• Spring Framework 3.2 — not 4.x/5.x. No @RestController, no @Conditional. XML config + <tx:advice> for transactions
• Spring Security 3.2 — XML namespace config
• Hibernate 4.2 — native Session API (not JPA), hbm.xml mappings (not annotations), getCurrentSession()
• MySQL 8.0 — InnoDB, utf8mb4
• SLF4J 1.7 + Logback
• JSP + JSTL 1.2 — view layer

Hard boundary — not a style preference. Do NOT use APIs, annotations, or patterns from newer versions of these frameworks. The pull toward modern idioms is a bias to resist, not a hint to follow — and the build won't catch it: many such symbols compile clean and fail only at review or runtime. If unsure whether something exists in these versions, read the matching instructions/ file before writing code; never guess.

Coding Philosophy

• State assumptions explicitly. If uncertain, ask — don't guess.
• If multiple interpretations exist, present them. Don't pick silently.
• Prefer what already exists — a codebase pattern, the stdlib, an already-installed dependency — before writing new code.
• Minimum code that solves the problem — no speculative abstractions, no features beyond what was asked.
• Touch only what the task requires; match existing style, even if you'd do it differently.
• Clean up orphans YOUR changes created. Don't remove pre-existing dead code — mention it, don't delete it.

File Operations

• Never use cat/echo/printf/tee with >/>>/<< EOF to write file content — VS Code terminal integration corrupts these (tab completion, escaping, exit 130).
• Create / modify files with the file editing tools (Write / Edit).
• Terminal remains fine for package management, builds, tests, git, ls/mkdir/rm, and downloads that don't pipe into files.