Copilot SDK v0.1.33-preview.4: Fine-Grained Prompts
Copilot SDK now lets you customize individual system prompt sections without replacing the entire prompt. Use transform callbacks for dynamic mutations.
TL;DR
- New
"customize"mode for system prompts — override specific sections without replacing the entire prompt - Ten configurable sections: identity, tone, tool_efficiency, environment_context, code_change_rules, guidelines, safety, tool_instructions, custom_instructions, last_instructions
- Supports static actions (replace, remove, append, prepend) plus transform callbacks for dynamic mutations
New
- Fine-grained system prompt customization —
"customize"mode lets you selectively override individual prompt sections instead of replacing the whole thing or just appending to the end. - Transform callbacks — Pass a function to read the current rendered section content and return a modified version, enabling regex mutations, conditional edits, or logging.
Details
- Ten sections are independently configurable:
identity,tone,tool_efficiency,environment_context,code_change_rules,guidelines,safety,tool_instructions,custom_instructions,last_instructions. - Each section supports four static actions:
replace,remove,append,prepend. - JavaScript and C# examples provided in the release.
Update via npm install @github/copilot-sdk@0.1.33-preview.4
Source: Copilot SDK
