[reference-impl-sync] Reference Implementation sync: 9 new commits (2026-05-05)

[github-actions]

Automated Reference Implementation Sync

There are 9 new commits in the official Copilot SDK since the last merge.

• Last merged commit: c063458ecc3d606766f04cf203b11b08de672cc8
• Reference Implementation HEAD: 58cf64d2c55107c6e86902f75808ff400b8a0eb7

Recent reference implementation commits

58cf64d Add provider model and token limit overrides to ProviderConfig (#966)
1832d0a Avoid shell kill cwd cleanup flakes (#1207)
3c622b9 Fix .NET client startup cleanup race (#1206)
79dc615 Harden Extension E2E Tests With --yolo For Permission Gate Compatibility (#1204)
08b486d Update `@github/copilot` to 1.0.41-1 (#1202)
c9433c4 Add offline GitHub proxy for E2E tests (#1199)
c9c3648 Make agent reload test runtime-compatible (#1201)
100390a Update byok.md (#1203)
ad0a9aa Ignore C# Dev Kit *.csproj.lscache files (#1196)

Instructions

You MUST follow these steps in order. Do NOT improvise or skip scripts.

1. ✅✅Read .github/prompts/agentic-merge-reference-impl.prompt.md in full before starting✅✅

❌❌Do NOT clone the reference implementation manually — the start script does this.❌❌
❌❌Do NOT update .lastmerge manually — the finish script does this.❌❌
❌❌Do NOT skip the finish script — it syncs codegen versions and updates .lastmerge.❌❌

Generated by Reference Implementation Sync · ● 197.3K · ◷

• expires on May 11, 2026, 11:10 PM UTC

[github-actions]

Superseded by a newer reference implementation sync check.