diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index 476f4e5689..ea3f8082fa 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -13,7 +13,7 @@
 - Language entry points: `nodejs/src/client.ts`, `python/README.md`, `go/README.md`, `dotnet/README.md`
 - Java: `java/README.md`, `java/pom.xml`, `java/sdk/pom.xml`, `java/copilot-native/pom.xml`
 - Test harness & E2E: `test/harness/*`, Python harness wrapper `python/e2e/testharness/proxy.py`
-- Schemas & type generation: `nodejs/scripts/generate-session-types.ts`
+- Schemas & type generation: `scripts/codegen/`
 - Session snapshots used by E2E: `test/snapshots/` (used by the replay proxy)
 - Docs style guide: `.github/instructions/docs-style.instructions.md` (used for `docs/**`)
 
@@ -23,7 +23,7 @@
   - Install deps: `just install` (runs npm ci, uv pip install -e, go mod download, dotnet restore)
   - Format all: `just format` | Lint all: `just lint` | Test all: `just test`
 - Per-language:
-  - Node: `cd nodejs && npm ci` → `npm test` (Vitest), `npm run generate:session-types` to regenerate session-event types
+  - Node: `cd nodejs && npm ci` → `npm test` (Vitest), `npm run generate` to regenerate session-event types
   - Python: `cd python && uv pip install -e . --group dev` → `uv run pytest` (E2E tests use the test harness)
   - Go: `cd go && go test ./...`
   - .NET: `cd dotnet && dotnet test test/GitHub.Copilot.SDK.Test.csproj`
@@ -68,6 +68,6 @@
 
 ## Boundaries — files you must NOT hand-edit ⛔
 
-- `java/sdk/src/generated/java/` — auto-generated by `scripts/codegen/java.ts`; regenerate with `cd java && mvn generate-sources -Pcodegen`.
-- `nodejs/src/generated/` — auto-generated by `npm run generate:session-types`.
+- `java/sdk/src/generated/java/` — auto-generated by `java/scripts/codegen/java.ts`; regenerate with `cd java && mvn generate-sources -Pcodegen`.
+- `nodejs/src/generated/` — auto-generated by `cd nodejs && npm run generate`.
 - `test/snapshots/` — authoritative test fixtures; add/edit YAML here to change E2E behavior, but don't delete without understanding downstream impact.