SamMorrowDrums · Apr 24, 2026 · Apr 22, 2026
@@ -76,7 +76,7 @@ func Install(opts *Options) (*Result, error) {
 			return nil, fmt.Errorf("failed to install skill %q: %w", skill.InstallName(), err)
 		}
 		var warnings []string
-		if err := lockfile.RecordInstall(skill.InstallName(), opts.Owner, opts.Repo, skill.Path+"/SKILL.md", skill.TreeSHA, opts.PinnedRef); err != nil {
+		if err := lockfile.RecordInstall(opts.Host, skill.InstallName(), opts.Owner, opts.Repo, skill.Path+"/SKILL.md", skill.TreeSHA, opts.PinnedRef); err != nil {
 			warnings = append(warnings, fmt.Sprintf("could not record install for %s: %v", skill.InstallName(), err))
 		}
 		return &Result{Installed: []string{skill.InstallName()}, Dir: targetDir, Warnings: warnings}, nil
@@ -129,7 +129,7 @@ func Install(opts *Options) (*Result, error) {
 		}
 		installed = append(installed, r.name)
 		skill := opts.Skills[i]
-		if err := lockfile.RecordInstall(skill.InstallName(), opts.Owner, opts.Repo, skill.Path+"/SKILL.md", skill.TreeSHA, opts.PinnedRef); err != nil {
+		if err := lockfile.RecordInstall(opts.Host, skill.InstallName(), opts.Owner, opts.Repo, skill.Path+"/SKILL.md", skill.TreeSHA, opts.PinnedRef); err != nil {
 			warnings = append(warnings, fmt.Sprintf("could not record install for %s: %v", skill.InstallName(), err))
 		}
 	}

@@ -10,6 +10,7 @@ import (
 	"time"
 
 	"github.com/cli/cli/v2/internal/flock"
+	"github.com/cli/cli/v2/internal/ghinstance"
 )
 
 const (
@@ -93,7 +94,7 @@ func writeTo(f *os.File, lf *file) error {
 // RecordInstall adds or updates a skill entry in the lock file.
 // It uses a file-based lock to prevent concurrent read-modify-write races
 // when multiple install processes run simultaneously.
-func RecordInstall(skillName, owner, repo, skillPath, treeSHA, pinnedRef string) error {
+func RecordInstall(host, skillName, owner, repo, skillPath, treeSHA, pinnedRef string) error {
 	lockPath, err := lockfilePath()
 	if err != nil {
 		return err
@@ -124,7 +125,7 @@ func RecordInstall(skillName, owner, repo, skillPath, treeSHA, pinnedRef string)
 	f.Skills[skillName] = entry{
 		Source:          owner + "/" + repo,
 		SourceType:      "github",
-		SourceURL:       "https://github.com/" + owner + "/" + repo + ".git",
+		SourceURL:       ghinstance.HostPrefix(host) + owner + "/" + repo + ".git",
 		SkillPath:       skillPath,
 		SkillFolderHash: treeSHA,
 		InstalledAt:     installedAt,

@@ -24,6 +24,7 @@ func TestRecordInstall(t *testing.T) {
 	tests := []struct {
 		name      string
 		setup     func(t *testing.T)
+		host      string
 		skill     string
 		owner     string
 		repo      string
@@ -35,6 +36,7 @@ func TestRecordInstall(t *testing.T) {
 	}{
 		{
 			name:      "fresh install creates lockfile",
+			host:      "github.com",
 			skill:     "code-review",
 			owner:     "monalisa",
 			repo:      "octocat-skills",
@@ -55,8 +57,25 @@ func TestRecordInstall(t *testing.T) {
 				assert.Empty(t, e.PinnedRef)
 			},
 		},
+		{
+			name:      "tenancy host uses correct URL",
+			host:      "mycompany.ghe.com",
+			skill:     "code-review",
+			owner:     "monalisa",
+			repo:      "octocat-skills",
+			skillPath: "skills/code-review/SKILL.md",
+			treeSHA:   "abc123",
+			verify: func(t *testing.T, lockPath string) {
+				t.Helper()
+				f := readTestLockfile(t, lockPath)
+				require.Contains(t, f.Skills, "code-review")
+				e := f.Skills["code-review"]
+				assert.Equal(t, "https://mycompany.ghe.com/monalisa/octocat-skills.git", e.SourceURL)
+			},
+		},
 		{
 			name:      "install with pinned ref",
+			host:      "github.com",
 			skill:     "pr-summary",
 			owner:     "hubot",
 			repo:      "skills-repo",
@@ -73,8 +92,9 @@ func TestRecordInstall(t *testing.T) {
 			name: "multiple skills coexist",
 			setup: func(t *testing.T) {
 				t.Helper()
-				require.NoError(t, RecordInstall("code-review", "monalisa", "octocat-skills", "skills/code-review/SKILL.md", "sha1", ""))
+				require.NoError(t, RecordInstall("github.com", "code-review", "monalisa", "octocat-skills", "skills/code-review/SKILL.md", "sha1", ""))
 			},
+			host:      "github.com",
 			skill:     "issue-triage",
 			owner:     "monalisa",
 			repo:      "octocat-skills",
@@ -107,6 +127,7 @@ func TestRecordInstall(t *testing.T) {
 				require.NoError(t, err)
 				t.Cleanup(unlock)
 			},
+			host:      "github.com",
 			skill:     "code-review",
 			owner:     "monalisa",
 			repo:      "octocat-skills",
@@ -123,6 +144,7 @@ func TestRecordInstall(t *testing.T) {
 				require.NoError(t, os.MkdirAll(filepath.Dir(lockPath), 0o755))
 				require.NoError(t, os.WriteFile(lockPath, []byte("{invalid json"), 0o644))
 			},
+			host:      "github.com",
 			skill:     "code-review",
 			owner:     "monalisa",
 			repo:      "octocat-skills",
@@ -145,6 +167,7 @@ func TestRecordInstall(t *testing.T) {
 				data, _ := json.Marshal(file{Version: 999, Skills: map[string]entry{"old-skill": {}}})
 				require.NoError(t, os.WriteFile(lockPath, data, 0o644))
 			},
+			host:      "github.com",
 			skill:     "code-review",
 			owner:     "monalisa",
 			repo:      "octocat-skills",
@@ -166,7 +189,7 @@ func TestRecordInstall(t *testing.T) {
 				tt.setup(t)
 			}
 
-			err := RecordInstall(tt.skill, tt.owner, tt.repo, tt.skillPath, tt.treeSHA, tt.pinnedRef)
+			err := RecordInstall(tt.host, tt.skill, tt.owner, tt.repo, tt.skillPath, tt.treeSHA, tt.pinnedRef)
 			if tt.wantErr {
 				require.Error(t, err)
 				return
@@ -181,10 +204,10 @@ func TestRecordInstall(t *testing.T) {
 	t.Run("update preserves InstalledAt and updates treeSHA", func(t *testing.T) {
 		lockPath := setupTestHome(t)
 
-		require.NoError(t, RecordInstall("code-review", "monalisa", "octocat-skills", "skills/code-review/SKILL.md", "old-sha", ""))
+		require.NoError(t, RecordInstall("github.com", "code-review", "monalisa", "octocat-skills", "skills/code-review/SKILL.md", "old-sha", ""))
 		firstInstalledAt := readTestLockfile(t, lockPath).Skills["code-review"].InstalledAt
 
-		require.NoError(t, RecordInstall("code-review", "monalisa", "octocat-skills", "skills/code-review/SKILL.md", "new-sha", ""))
+		require.NoError(t, RecordInstall("github.com", "code-review", "monalisa", "octocat-skills", "skills/code-review/SKILL.md", "new-sha", ""))
 		entry := readTestLockfile(t, lockPath).Skills["code-review"]
 
 		assert.Equal(t, "new-sha", entry.SkillFolderHash, "treeSHA should be updated")

@@ -4,6 +4,8 @@ import (
 	"fmt"
 	"strings"
 
+	ghauth "github.com/cli/go-gh/v2/pkg/auth"
+
 	"github.com/cli/cli/v2/internal/ghrepo"
 )
 
@@ -48,16 +50,21 @@ func ParseMetadataRepo(meta map[string]interface{}) (ghrepo.Interface, bool, err
 	return repo, true, nil
 }
 
-// ValidateSupportedHost rejects hosts that are not supported in public preview.
+// ValidateSupportedHost rejects hosts that are not supported.
+// Supported hosts are github.com and GHEC with data residency (*.ghe.com).
+// GitHub Enterprise Server is not currently supported.
 func ValidateSupportedHost(host string) error {
 	host = normalizeHost(host)
 	if host == "" {
 		return fmt.Errorf("could not determine repository host")
 	}
-	if host != SupportedHost {
-		return fmt.Errorf("GitHub Skills currently supports only %s as a host; got %s", SupportedHost, host)
+	if host == SupportedHost || ghauth.IsTenancy(host) {
+		return nil
+	}
+	if ghauth.IsEnterprise(host) {
+		return fmt.Errorf("GitHub Skills does not currently support GitHub Enterprise Server; got %s", host)
 	}
-	return nil
+	return fmt.Errorf("unsupported host for GitHub Skills: %s", host)
 }
 
 func normalizeHost(host string) string {

@@ -72,5 +72,7 @@ func TestParseMetadataRepo(t *testing.T) {
 
 func TestValidateSupportedHost(t *testing.T) {
 	require.NoError(t, ValidateSupportedHost("github.com"))
-	require.ErrorContains(t, ValidateSupportedHost("acme.ghes.com"), "supports only github.com")
+	require.NoError(t, ValidateSupportedHost("mycompany.ghe.com"), "GHEC data residency tenancy hosts should be accepted")
+	require.ErrorContains(t, ValidateSupportedHost("acme.ghes.com"), "does not currently support GitHub Enterprise Server")
+	require.ErrorContains(t, ValidateSupportedHost("github.localhost"), "unsupported host")
 }
@@ -1177,7 +1177,7 @@ func TestInstallRun(t *testing.T) {
 					SkillName:   "git-commit",
 				}
 			},
-			wantErr: "supports only github.com",
+			wantErr: "does not currently support GitHub Enterprise Server",
 		},
 		{
 			name:  "select all skills in interactive prompt",

@@ -403,7 +403,7 @@ func TestPreviewRun_UnsupportedHost(t *testing.T) {
 		repo:       ghrepo.NewWithHost("github", "awesome-copilot", "acme.ghes.com"),
 		Telemetry:  &telemetry.NoOpService{},
 	})
-	require.ErrorContains(t, err, "supports only github.com")
+	require.ErrorContains(t, err, "does not currently support GitHub Enterprise Server")
 }
 
 func TestPreviewRun_Interactive(t *testing.T) {

@@ -968,7 +968,7 @@ func detectGitHubRemote(gitClient *git.Client, dir string) (*gitHubRemote, error
 }
 
 // parseGitHubURL extracts owner/repo from a GitHub remote URL.
-// Only GitHub.com URLs are recognized.
+// Only github.com and GHEC data residency (*.ghe.com) URLs are recognized.
 func parseGitHubURL(rawURL string) (ghrepo.Interface, error) {
 	u, err := git.ParseURL(rawURL)
 	if err != nil {

@@ -171,7 +171,7 @@ func TestPublishRun_UnsupportedHost(t *testing.T) {
 		HttpClient: func() (*http.Client, error) { return nil, nil },
 		host:       "acme.ghes.com",
 	})
-	require.ErrorContains(t, err, "supports only github.com")
+	require.ErrorContains(t, err, "does not currently support GitHub Enterprise Server")
 }
 
 func TestPublishRun(t *testing.T) {

@@ -33,7 +33,7 @@ func TestSearchRun_UnsupportedHost(t *testing.T) {
 		HttpClient: func() (*http.Client, error) { return &http.Client{}, nil },
 		Config:     func() (gh.Config, error) { return cfg, nil },
 	})
-	require.ErrorContains(t, err, "supports only github.com")
+	require.ErrorContains(t, err, "does not currently support GitHub Enterprise Server")
 }
 
 func TestNewCmdSearch(t *testing.T) {

@@ -171,7 +171,7 @@ func TestScanInstalledSkills(t *testing.T) {
 				require.NoError(t, err)
 				require.Len(t, skills, 1)
 				require.Error(t, skills[0].metadataErr)
-				assert.Contains(t, skills[0].metadataErr.Error(), "supports only github.com")
+				assert.Contains(t, skills[0].metadataErr.Error(), "does not currently support GitHub Enterprise Server")
 			},
 		},
 		{