Use Copilot as usual. Send it better context.

No workflow reset.

Keep using Copilot Chat, agent mode, repo instructions, and prompt files. Context Delta gives you a reviewable packet first, so the prompt starts with less noise and fewer missing signals.

What Context Delta adds.

• Changed-context detection from git or local snapshots.
• Relevant spec and instruction sections with inclusion reasons.
• Nearby tests and missing-test warnings.
• Estimated token savings and budget pressure.
• Excluded files and stale-context warnings.

Copilot-ready handoff.

Copy a Markdown handoff that states the task, packet readiness, included context, exclusions, risks, and recommended next steps.

npm run packet -- "Update admin refresh token behavior"
npm run handoff -- --format copilot

When Copilot misses, inspect the packet.

If the answer looks wrong, you can see whether the right spec, test, instruction, and changed file were present before retrying with a better packet.