context-budget-check

To check Copilot configuration files against context budget limits, validate per-file type sizes for targets like copilot-instructions.md and SKILL.md, then generate a compliance report flagging oversized content for trimming or splitting.

A Copilot context budget is the token limit for configuration files like .instructions.md and .agent.md. When file sizes balloon, they cause high co-loading and degrade model performance, making size validation essential.

Validate worst-case context loading for .github configurations by simulating co-loading scenarios across all modified files to measure total token impact and identify files that exceed maximum size thresholds.

Run context budget validation immediately after generating or updating any .github Copilot configuration files to ensure they stay within defined size targets before causing model performance degradation.

If your copilot-instructions.md file is too large, use the compliance report recommendations to either trim unnecessary content or split the oversized file into smaller, focused configuration files.