diff --git a/completers/common/gh_completer/cmd/agentTask_list.go b/completers/common/gh_completer/cmd/agentTask_list.go
index d88d928c93..9acd6e1ebf 100644
--- a/completers/common/gh_completer/cmd/agentTask_list.go
+++ b/completers/common/gh_completer/cmd/agentTask_list.go
@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"github.com/carapace-sh/carapace"
+	"github.com/carapace-sh/carapace-bin/pkg/actions/tools/gh"
 	"github.com/spf13/cobra"
 )
 
@@ -14,7 +15,14 @@ var agentTask_listCmd = &cobra.Command{
 func init() {
 	carapace.Gen(agentTask_listCmd).Standalone()
 
-	agentTask_listCmd.Flags().StringP("limit", "L", "", "Maximum number of agent tasks to fetch (default 30)")
+	agentTask_listCmd.Flags().StringP("jq", "q", "", "Filter JSON output using a jq `expression`")
+	agentTask_listCmd.Flags().StringSlice("json", nil, "Output JSON with the specified `fields`")
+	agentTask_listCmd.Flags().StringP("limit", "L", "", "Maximum number of agent tasks to fetch")
+	agentTask_listCmd.Flags().StringP("template", "t", "", "Format JSON output using a Go template; see \"gh help formatting\"")
 	agentTask_listCmd.Flags().BoolP("web", "w", false, "Open agent tasks in the browser")
 	agentTaskCmd.AddCommand(agentTask_listCmd)
+
+	carapace.Gen(agentTask_listCmd).FlagCompletion(carapace.ActionMap{
+		"json": gh.ActionSessionFields().UniqueList(","),
+	})
 }
diff --git a/completers/common/gh_completer/cmd/agentTask_view.go b/completers/common/gh_completer/cmd/agentTask_view.go
index 4a996d8f80..0ad46ed190 100644
--- a/completers/common/gh_completer/cmd/agentTask_view.go
+++ b/completers/common/gh_completer/cmd/agentTask_view.go
@@ -16,12 +16,16 @@ func init() {
 	carapace.Gen(agentTask_viewCmd).Standalone()
 
 	agentTask_viewCmd.Flags().Bool("follow", false, "Follow agent session logs")
+	agentTask_viewCmd.Flags().StringP("jq", "q", "", "Filter JSON output using a jq `expression`")
+	agentTask_viewCmd.Flags().StringSlice("json", nil, "Output JSON with the specified `fields`")
 	agentTask_viewCmd.Flags().Bool("log", false, "Show agent session logs")
 	agentTask_viewCmd.PersistentFlags().StringP("repo", "R", "", "Select another repository using the `[HOST/]OWNER/REPO` format")
+	agentTask_viewCmd.Flags().StringP("template", "t", "", "Format JSON output using a Go template; see \"gh help formatting\"")
 	agentTask_viewCmd.Flags().BoolP("web", "w", false, "Open agent task in the browser")
 	agentTaskCmd.AddCommand(agentTask_viewCmd)
 
 	carapace.Gen(agentTask_viewCmd).FlagCompletion(carapace.ActionMap{
+		"json": gh.ActionSessionFields().UniqueList(","),
 		"repo": gh.ActionOwnerRepositories(gh.HostOpts{}),
 	})
 
diff --git a/completers/common/gh_completer/cmd/browse.go b/completers/common/gh_completer/cmd/browse.go
index a092cc9243..daddd9d0ff 100644
--- a/completers/common/gh_completer/cmd/browse.go
+++ b/completers/common/gh_completer/cmd/browse.go
@@ -25,6 +25,7 @@ func init() {
 	carapace.Gen(browseCmd).Standalone()
 
 	browseCmd.Flags().BoolP("actions", "a", false, "Open repository actions")
+	browseCmd.Flags().Bool("blame", false, "Open blame view for a file")
 	browseCmd.Flags().StringP("branch", "b", "", "Select another branch by passing in the branch name")
 	browseCmd.Flags().StringP("commit", "c", "", "Select another commit by passing in the commit SHA, default is the last commit")
 	browseCmd.Flags().BoolP("no-browser", "n", false, "Print destination URL instead of opening the browser")
diff --git a/completers/common/gh_completer/cmd/issue_close.go b/completers/common/gh_completer/cmd/issue_close.go
index 80adfb67d8..57e21a08e6 100644
--- a/completers/common/gh_completer/cmd/issue_close.go
+++ b/completers/common/gh_completer/cmd/issue_close.go
@@ -17,12 +17,14 @@ func init() {
 	carapace.Gen(issue_closeCmd).Standalone()
 
 	issue_closeCmd.Flags().StringP("comment", "c", "", "Leave a closing comment")
-	issue_closeCmd.Flags().StringP("reason", "r", "", "Reason for closing: {completed|not planned}")
+	issue_closeCmd.Flags().String("duplicate-of", "", "Mark as duplicate of another issue by number or URL")
+	issue_closeCmd.Flags().StringP("reason", "r", "", "Reason for closing: {completed|not planned|duplicate}")
 	issueCmd.AddCommand(issue_closeCmd)
 
 	carapace.Gen(issue_closeCmd).FlagCompletion(carapace.ActionMap{
-		"comment": action.ActionBody(issue_closeCmd),
-		"reason":  carapace.ActionValues("completed", "not planned"),
+		"comment":      action.ActionBody(issue_closeCmd),
+		"duplicate-of": action.ActionIssues(issue_closeCmd, action.IssueOpts{Closed: true, Open: true}),
+		"reason":       carapace.ActionValues("completed", "not planned", "duplicate"),
 	})
 
 	carapace.Gen(issue_closeCmd).PositionalCompletion(
diff --git a/completers/common/gh_completer/cmd/pr_diff.go b/completers/common/gh_completer/cmd/pr_diff.go
index b2b51f4a1b..b6b4bfaa2b 100644
--- a/completers/common/gh_completer/cmd/pr_diff.go
+++ b/completers/common/gh_completer/cmd/pr_diff.go
@@ -1,6 +1,9 @@
 package cmd
 
 import (
+	"path/filepath"
+	"strings"
+
 	"github.com/carapace-sh/carapace"
 	"github.com/carapace-sh/carapace-bin/completers/common/gh_completer/cmd/action"
 	"github.com/carapace-sh/carapace/pkg/style"
@@ -18,16 +21,31 @@ func init() {
 	carapace.Gen(pr_diffCmd).Standalone()
 
 	pr_diffCmd.Flags().String("color", "", "Use color in diff output: {always|never|auto}")
+	pr_diffCmd.Flags().StringSliceP("exclude", "e", nil, "Exclude files matching glob `patterns` from the diff")
 	pr_diffCmd.Flags().Bool("name-only", false, "Display only names of changed files")
 	pr_diffCmd.Flags().Bool("patch", false, "Display diff in patch format")
 	pr_diffCmd.Flags().BoolP("web", "w", false, "Open the pull request diff in the browser")
 	prCmd.AddCommand(pr_diffCmd)
 
-	carapace.Gen(pr_diffCmd).PositionalCompletion(
-		action.ActionPullRequests(pr_diffCmd, action.PullRequestOpts{Open: true}),
-	)
-
 	carapace.Gen(pr_diffCmd).FlagCompletion(carapace.ActionMap{
 		"color": carapace.ActionValues("auto", "never", "always").StyleF(style.ForKeyword),
+		"exclude": carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+			args := []string{"pr", "diff", "--name-only"}
+			if f := pr_diffCmd.Flag("repo"); f.Changed { // TODO use repoverride
+				args = append(args, "--repo", f.Value.String())
+			}
+			args = append(args, c.Args...)
+			return carapace.ActionExecCommand("gh", args...)(func(output []byte) carapace.Action {
+				lines := strings.Split(string(output), "\n")
+				for index, line := range lines {
+					lines[index] = filepath.Base(line) // full paths don't work as flag value?
+				}
+				return carapace.ActionValues(lines[:len(lines)-1]...).StyleF(style.ForPathExt)
+			})
+		}).UniqueList(","),
 	})
+
+	carapace.Gen(pr_diffCmd).PositionalCompletion(
+		action.ActionPullRequests(pr_diffCmd, action.PullRequestOpts{Open: true}),
+	)
 }
diff --git a/completers/common/gh_completer/cmd/repo_clone.go b/completers/common/gh_completer/cmd/repo_clone.go
index 4275f08712..0f701d6729 100644
--- a/completers/common/gh_completer/cmd/repo_clone.go
+++ b/completers/common/gh_completer/cmd/repo_clone.go
@@ -19,6 +19,7 @@ var repo_cloneCmd = &cobra.Command{
 func init() {
 	carapace.Gen(repo_cloneCmd).Standalone()
 
+	repo_cloneCmd.Flags().Bool("no-upstream", false, "Do not add an upstream remote when cloning a fork")
 	repo_cloneCmd.Flags().StringP("upstream-remote-name", "u", "", "Upstream remote name when cloning a fork")
 	repoCmd.AddCommand(repo_cloneCmd)
 
diff --git a/completers/common/gh_completer/cmd/repo_edit.go b/completers/common/gh_completer/cmd/repo_edit.go
index d424e911cc..93037940d3 100644
--- a/completers/common/gh_completer/cmd/repo_edit.go
+++ b/completers/common/gh_completer/cmd/repo_edit.go
@@ -36,6 +36,7 @@ func init() {
 	repo_editCmd.Flags().Bool("enable-wiki", false, "Enable wiki in the repository")
 	repo_editCmd.Flags().StringP("homepage", "h", "", "Repository home page `URL`")
 	repo_editCmd.Flags().StringSlice("remove-topic", nil, "Remove repository topic")
+	repo_editCmd.Flags().String("squash-merge-commit-message", "", "The default value for a squash merge commit message: {default|pr-title|pr-title-commits|pr-title-description}")
 	repo_editCmd.Flags().Bool("template", false, "Make the repository available as a template repository")
 	repo_editCmd.Flags().String("visibility", "", "Change the visibility of the repository to {public,private,internal}")
 	repoCmd.AddCommand(repo_editCmd)
@@ -56,7 +57,8 @@ func init() {
 			}
 			return action.ActionRepoTopics(repo_editCmd).UniqueList(",")
 		}),
-		"visibility": carapace.ActionValues("public", "private", "internal"),
+		"squash-merge-commit-message": carapace.ActionValues("default", "pr-title", "pr-title-commits", "pr-title-description"),
+		"visibility":                  carapace.ActionValues("public", "private", "internal"),
 	})
 
 	carapace.Gen(repo_editCmd).PositionalCompletion(
diff --git a/pkg/actions/tools/gh/session.go b/pkg/actions/tools/gh/session.go
new file mode 100644
index 0000000000..5c3960afb5
--- /dev/null
+++ b/pkg/actions/tools/gh/session.go
@@ -0,0 +1,24 @@
+package gh
+
+import "github.com/carapace-sh/carapace"
+
+// ActionSessionFields completes session fields
+//
+//	id
+//	name
+func ActionSessionFields() carapace.Action {
+	return carapace.ActionValues(
+		"id",
+		"name",
+		"state",
+		"repository",
+		"user",
+		"createdAt",
+		"updatedAt",
+		"completedAt",
+		"pullRequestNumber",
+		"pullRequestUrl",
+		"pullRequestTitle",
+		"pullRequestState",
+	).Tag("session fields")
+}