chore: retire Windsurf integration — absorbed into Cognition Devin (#3168) (#3213)

* chore: retire windsurf integration — absorbed into Cognition Devin (#3168)

windsurf.com now permanently redirects to devin.ai/desktop following
acquisition. Remove subpackage, registry/catalog entries, docs, and tests;
re-point sample-agent test fixtures to Kilo Code.

Assisted-by: GitHub Copilot (model: Claude Opus 4.8, autonomous)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* docs: remove stale Windsurf support references

Assisted-by: GitHub Copilot (model: gpt-5.3-codex, autonomous)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* docs: fix Kilo Code command path in upgrade guide

Assisted-by: GitHub Copilot (model: gpt-5.3-codex, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* chore: align integration lists after rebase

Assisted-by: GitHub Copilot (model: gpt-5.3-codex, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* docs: align kilocode example with runtime behavior

Assisted-by: GitHub Copilot (model: gpt-5.3-codex, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

tests/integrations/test_integration_devin.py

@@ -28,7 +28,7 @@ class TestDevinBuildExecArgs:
         assert args is not None, (
             "DevinIntegration.build_exec_args must not return None. "
             "None is the codebase sentinel for IDE-only integrations "
-            "(see WindsurfIntegration); Devin is dispatchable via 'devin -p'."
+            "(see KilocodeIntegration); Devin is dispatchable via 'devin -p'."
         )
         assert args[:3] == ["devin", "-p", "test prompt"]
 

tests/integrations/test_integration_forge.py

@@ -403,7 +403,7 @@ class TestForgeCommandRegistrar:
             encoding="utf-8"
         )
         
-        # Register with Windsurf (standard markdown agent without inject_name)
+        # Register with Kilo Code (standard markdown agent without inject_name)
         registrar = CommandRegistrar()
         commands = [
             {
@@ -413,22 +413,22 @@ class TestForgeCommandRegistrar:
         ]
         
         registrar.register_commands(
-            "windsurf",
+            "kilocode",
             commands,
             "test-extension",
             ext_dir,
             tmp_path
         )
         
-        # Windsurf uses standard markdown format without name injection.
+        # Kilo Code uses standard markdown format without name injection.
         # The format_name callback should not be invoked for non-Forge agents.
-        windsurf_cmd = tmp_path / ".windsurf" / "workflows" / "speckit.my-extension.example.md"
-        assert windsurf_cmd.exists()
+        kilocode_cmd = tmp_path / ".kilocode" / "workflows" / "speckit.my-extension.example.md"
+        assert kilocode_cmd.exists()
         
-        content = windsurf_cmd.read_text(encoding="utf-8")
-        # Windsurf should NOT have a name field injected
+        content = kilocode_cmd.read_text(encoding="utf-8")
+        # Kilo Code should NOT have a name field injected
         assert "name:" not in content, (
-            "Windsurf should not inject name field - format_name callback should be Forge-only"
+            "Kilo Code should not inject name field - format_name callback should be Forge-only"
         )
 
     def test_git_extension_command_uses_hyphen_notation(self, tmp_path):

tests/integrations/test_integration_windsurf.py

@@ -1,10 +0,0 @@
-"""Tests for WindsurfIntegration."""
-
-from .test_integration_base_markdown import MarkdownIntegrationTests
-
-
-class TestWindsurfIntegration(MarkdownIntegrationTests):
-    KEY = "windsurf"
-    FOLDER = ".windsurf/"
-    COMMANDS_SUBDIR = "workflows"
-    REGISTRAR_DIR = ".windsurf/workflows"

tests/integrations/test_registry.py

@@ -23,7 +23,7 @@ ALL_INTEGRATION_KEYS = [
     # Stage 3 — standard markdown integrations
     "claude", "qwen", "opencode", "junie", "kilocode", "auggie",
     "roo", "rovodev", "codebuddy", "qodercli", "amp", "shai", "bob", "trae",
-    "pi", "kiro-cli", "windsurf", "vibe", "cursor-agent", "firebender",
+    "pi", "kiro-cli", "vibe", "cursor-agent", "firebender",
     # Stage 4 — TOML integrations
     "gemini", "tabnine",
     # Stage 5 — skills, generic & option-driven integrations