docs: neutralize Copilot-specific references in agent instructions

diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index 26ea001406bfdab0aa336d14ab916f5f85741d7a..1b24f89f8bb2afd339e336a1c34a7428f05d3933 100644 (file)
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -1,13 +1,13 @@
-# Copilot Instructions (repository-wide, language-agnostic)
+# Coding Agent Instructions (repository-wide, language-agnostic)
 
-These instructions guide GitHub Copilot to generate changes consistent with this repository's conventions, regardless of programming language.
+These instructions guide coding agents to generate changes consistent with this repository's conventions, regardless of programming language.
 
 ## Glossary
 
 - **Tunables**: user-adjustable parameters that shape behavior, exposed via options or configuration files.
 - **Canonical defaults**: the single, authoritative definition of all tunables and their defaults.
 
-## Implementation guidance for Copilot
+## Implementation guidance
 
 - **Before coding**:
   - Perform a comprehensive inventory of the codebase. Search for and read:
@@ -158,4 +158,4 @@ protected handleProtocolRequest(
 
 ---
 
-By following these instructions, Copilot should propose changes that are consistent and maintainable across languages.
+By following these instructions, coding agents should propose changes that are consistent and maintainable across languages.