feat: Enhance prompting guidelines for AI sessions to improve context handling and clarity

.opencode/skills/copilot-prompt-engineering/SKILL.md

@@ -31,6 +31,7 @@ Use this skill when the user wants a prompt for another AI assistant, GitHub Cop
 - Write the final prompt in English unless the user explicitly requests another language.
 - Default to first-person wording so the user can paste the prompt directly into Copilot.
 - Keep the prompt short unless the user asks for more detail.
+- For follow-up prompts in the same AI session, assume recent shared context and avoid repeating which side made the previous changes unless it matters for the task.
 - Include Jira ID and approved title when available.
 - For REST work, say REST is behind a feature flag and GraphQL is fallback unless confirmed otherwise.
 - For XFlow work, say behavior may depend on entry point, auth state, backend config, and consumer integration.