diff --git a/pkg/cmd/agent-task/capi/sessions_test.go b/pkg/cmd/agent-task/capi/sessions_test.go
new file mode 100644
index 000000000..2ac2dab6e
--- /dev/null
+++ b/pkg/cmd/agent-task/capi/sessions_test.go
@@ -0,0 +1,822 @@
+package capi
+
+import (
+	"context"
+	"net/http"
+	"net/url"
+	"testing"
+	"time"
+
+	"github.com/MakeNowJust/heredoc"
+	"github.com/cli/cli/v2/api"
+
+	"github.com/cli/cli/v2/internal/config"
+	"github.com/cli/cli/v2/pkg/httpmock"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestListSessionsForViewer(t *testing.T) {
+	sampleDateString := "2025-08-29T00:00:00Z"
+	sampleDate, err := time.Parse(time.RFC3339, sampleDateString)
+	require.NoError(t, err)
+
+	tests := []struct {
+		name      string
+		perPage   int
+		limit     int
+		httpStubs func(*testing.T, *httpmock.Registry)
+		wantErr   string
+		wantOut   []*Session
+	}{
+		{
+			name:    "zero limit",
+			limit:   0,
+			wantOut: nil,
+		},
+		{
+			name:  "no sessions",
+			limit: 10,
+			httpStubs: func(t *testing.T, reg *httpmock.Registry) {
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions", url.Values{
+							"page_number": {"1"},
+							"page_size":   {"50"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StringResponse(`{"sessions":[]}`),
+				)
+			},
+			wantOut: nil,
+		},
+		{
+			name:  "single session",
+			limit: 10,
+			httpStubs: func(t *testing.T, reg *httpmock.Registry) {
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions", url.Values{
+							"page_number": {"1"},
+							"page_size":   {"50"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StringResponse(heredoc.Docf(`
+						{
+							"sessions": [
+								{
+									"id": "sess1",
+									"name": "Build artifacts",
+									"user_id": 1,
+									"agent_id": 2,
+									"logs": "",
+									"state": "completed",
+									"owner_id": 10,
+									"repo_id": 1000,
+									"resource_type": "pull",
+									"resource_id": 2000,
+									"created_at": "%[1]s"
+								}
+							]
+						}`,
+						sampleDateString,
+					)),
+				)
+				// GraphQL hydration
+				reg.Register(
+					httpmock.GraphQL(`query FetchPRsForAgentTaskSessions\b`),
+					httpmock.GraphQLQuery(heredoc.Docf(`
+						{
+							"data": {
+								"nodes": [
+									{
+										"__typename": "PullRequest",
+										"id": "PR_node",
+										"fullDatabaseId": "2000",
+										"number": 42,
+										"title": "Improve docs",
+										"state": "OPEN",
+										"url": "https://github.com/OWNER/REPO/pull/42",
+										"body": "",
+										"createdAt": "%[1]s",
+										"updatedAt": "%[1]s",
+										"repository": {
+											"nameWithOwner": "OWNER/REPO"
+										}
+									}
+								]
+							}
+						}`,
+						sampleDateString,
+					), func(q string, vars map[string]interface{}) {
+						assert.Equal(t, []interface{}{"PR_kwDNA-jNB9A"}, vars["ids"])
+					}),
+				)
+			},
+			wantOut: []*Session{
+				{
+					session: session{
+						ID:           "sess1",
+						Name:         "Build artifacts",
+						UserID:       1,
+						AgentID:      2,
+						Logs:         "",
+						State:        "completed",
+						OwnerID:      10,
+						RepoID:       1000,
+						ResourceType: "pull",
+						ResourceID:   2000,
+						CreatedAt:    sampleDate,
+					},
+					PullRequest: &api.PullRequest{
+						ID:             "PR_node",
+						FullDatabaseID: "2000",
+						Number:         42,
+						Title:          "Improve docs",
+						State:          "OPEN",
+						URL:            "https://github.com/OWNER/REPO/pull/42",
+						Body:           "",
+						CreatedAt:      sampleDate,
+						UpdatedAt:      sampleDate,
+						Repository: &api.PRRepository{
+							NameWithOwner: "OWNER/REPO",
+						},
+					},
+				},
+			},
+		},
+		{
+			name:    "multiple sessions, paginated",
+			perPage: 1, // to enforce pagination
+			limit:   2,
+			httpStubs: func(t *testing.T, reg *httpmock.Registry) {
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions", url.Values{
+							"page_number": {"1"},
+							"page_size":   {"1"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StringResponse(heredoc.Docf(`
+						{
+							"sessions": [
+								{
+									"id": "sess1",
+									"name": "Build artifacts",
+									"user_id": 1,
+									"agent_id": 2,
+									"logs": "",
+									"state": "completed",
+									"owner_id": 10,
+									"repo_id": 1000,
+									"resource_type": "pull",
+									"resource_id": 2000,
+									"created_at": "%[1]s"
+								}
+							]
+						}`,
+						sampleDateString,
+					)),
+				)
+
+				// Second page
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions", url.Values{
+							"page_number": {"2"},
+							"page_size":   {"1"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StringResponse(heredoc.Docf(`
+						{
+							"sessions": [
+								{
+									"id": "sess2",
+									"name": "Build artifacts",
+									"user_id": 1,
+									"agent_id": 2,
+									"logs": "",
+									"state": "completed",
+									"owner_id": 10,
+									"repo_id": 1000,
+									"resource_type": "pull",
+									"resource_id": 2001,
+									"created_at": "%[1]s"
+								}
+							]
+						}`,
+						sampleDateString,
+					)),
+				)
+				// GraphQL hydration
+				reg.Register(
+					httpmock.GraphQL(`query FetchPRsForAgentTaskSessions\b`),
+					httpmock.GraphQLQuery(heredoc.Docf(`
+						{
+							"data": {
+								"nodes": [
+									{
+										"__typename": "PullRequest",
+										"id": "PR_node",
+										"fullDatabaseId": "2000",
+										"number": 42,
+										"title": "Improve docs",
+										"state": "OPEN",
+										"url": "https://github.com/OWNER/REPO/pull/42",
+										"body": "",
+										"createdAt": "%[1]s",
+										"updatedAt": "%[1]s",
+										"repository": {
+											"nameWithOwner": "OWNER/REPO"
+										}
+									},
+									{
+										"__typename": "PullRequest",
+										"id": "PR_node",
+										"fullDatabaseId": "2001",
+										"number": 43,
+										"title": "Improve docs",
+										"state": "OPEN",
+										"url": "https://github.com/OWNER/REPO/pull/43",
+										"body": "",
+										"createdAt": "%[1]s",
+										"updatedAt": "%[1]s",
+										"repository": {
+											"nameWithOwner": "OWNER/REPO"
+										}
+									}
+								]
+							}
+						}`,
+						sampleDateString,
+					), func(q string, vars map[string]interface{}) {
+						assert.Equal(t, []interface{}{"PR_kwDNA-jNB9A", "PR_kwDNA-jNB9E"}, vars["ids"])
+					}),
+				)
+			},
+			wantOut: []*Session{
+				{
+					session: session{
+						ID:           "sess1",
+						Name:         "Build artifacts",
+						UserID:       1,
+						AgentID:      2,
+						Logs:         "",
+						State:        "completed",
+						OwnerID:      10,
+						RepoID:       1000,
+						ResourceType: "pull",
+						ResourceID:   2000,
+						CreatedAt:    sampleDate,
+					},
+					PullRequest: &api.PullRequest{
+						ID:             "PR_node",
+						FullDatabaseID: "2000",
+						Number:         42,
+						Title:          "Improve docs",
+						State:          "OPEN",
+						URL:            "https://github.com/OWNER/REPO/pull/42",
+						Body:           "",
+						CreatedAt:      sampleDate,
+						UpdatedAt:      sampleDate,
+						Repository: &api.PRRepository{
+							NameWithOwner: "OWNER/REPO",
+						},
+					},
+				},
+				{
+					session: session{
+						ID:           "sess2",
+						Name:         "Build artifacts",
+						UserID:       1,
+						AgentID:      2,
+						Logs:         "",
+						State:        "completed",
+						OwnerID:      10,
+						RepoID:       1000,
+						ResourceType: "pull",
+						ResourceID:   2001,
+						CreatedAt:    sampleDate,
+					},
+					PullRequest: &api.PullRequest{
+						ID:             "PR_node",
+						FullDatabaseID: "2001",
+						Number:         43,
+						Title:          "Improve docs",
+						State:          "OPEN",
+						URL:            "https://github.com/OWNER/REPO/pull/43",
+						Body:           "",
+						CreatedAt:      sampleDate,
+						UpdatedAt:      sampleDate,
+						Repository: &api.PRRepository{
+							NameWithOwner: "OWNER/REPO",
+						},
+					},
+				},
+			},
+		},
+		{
+			name:  "API error",
+			limit: 10,
+			httpStubs: func(t *testing.T, reg *httpmock.Registry) {
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions", url.Values{
+							"page_number": {"1"},
+							"page_size":   {"50"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StatusStringResponse(500, "{}"),
+				)
+			},
+			wantErr: "failed to list sessions:",
+		}, {
+			name:  "API error at hydration",
+			limit: 10,
+			httpStubs: func(t *testing.T, reg *httpmock.Registry) {
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions", url.Values{
+							"page_number": {"1"},
+							"page_size":   {"50"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StringResponse(heredoc.Docf(`
+						{
+							"sessions": [
+								{
+									"id": "sess1",
+									"name": "Build artifacts",
+									"user_id": 1,
+									"agent_id": 2,
+									"logs": "",
+									"state": "completed",
+									"owner_id": 10,
+									"repo_id": 1000,
+									"resource_type": "pull",
+									"resource_id": 2000,
+									"created_at": "%[1]s"
+								}
+							]
+						}`,
+						sampleDateString,
+					)),
+				)
+				// GraphQL hydration
+				reg.Register(
+					httpmock.GraphQL(`query FetchPRsForAgentTaskSessions\b`),
+					httpmock.StatusStringResponse(500, `{}`),
+				)
+			},
+			wantErr: `failed to fetch session resources: non-200 OK status code:`,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			reg := &httpmock.Registry{}
+			if tt.httpStubs != nil {
+				tt.httpStubs(t, reg)
+			}
+			defer reg.Verify(t)
+
+			httpClient := &http.Client{Transport: reg}
+
+			cfg := config.NewBlankConfig()
+			capiClient := NewCAPIClient(httpClient, cfg.Authentication())
+
+			if tt.perPage != 0 {
+				last := defaultSessionsPerPage
+				defaultSessionsPerPage = tt.perPage
+				defer func() {
+					defaultSessionsPerPage = last
+				}()
+			}
+
+			sessions, err := capiClient.ListSessionsForViewer(context.Background(), tt.limit)
+
+			if tt.wantErr != "" {
+				require.ErrorContains(t, err, tt.wantErr)
+				require.Nil(t, sessions)
+				return
+			}
+
+			require.NoError(t, err)
+			require.Equal(t, tt.wantOut, sessions)
+		})
+	}
+}
+
+func TestListSessionForRepoRequiresRepo(t *testing.T) {
+	client := &CAPIClient{}
+
+	_, err := client.ListSessionsForRepo(context.Background(), "", "only-repo", 0)
+	assert.EqualError(t, err, "owner and repo are required")
+	_, err = client.ListSessionsForRepo(context.Background(), "only-owner", "", 0)
+	assert.EqualError(t, err, "owner and repo are required")
+	_, err = client.ListSessionsForRepo(context.Background(), "", "", 0)
+	assert.EqualError(t, err, "owner and repo are required")
+}
+
+func TestListSessionsForRepo(t *testing.T) {
+	sampleDateString := "2025-08-29T00:00:00Z"
+	sampleDate, err := time.Parse(time.RFC3339, sampleDateString)
+	require.NoError(t, err)
+
+	tests := []struct {
+		name      string
+		perPage   int
+		limit     int
+		httpStubs func(*testing.T, *httpmock.Registry)
+		wantErr   string
+		wantOut   []*Session
+	}{
+		{
+			name:    "zero limit",
+			limit:   0,
+			wantOut: nil,
+		},
+		{
+			name:  "no sessions",
+			limit: 10,
+			httpStubs: func(t *testing.T, reg *httpmock.Registry) {
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions/nwo/OWNER/REPO", url.Values{
+							"page_number": {"1"},
+							"page_size":   {"50"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StringResponse(`{"sessions":[]}`),
+				)
+			},
+			wantOut: nil,
+		},
+		{
+			name:  "single session",
+			limit: 10,
+			httpStubs: func(t *testing.T, reg *httpmock.Registry) {
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions/nwo/OWNER/REPO", url.Values{
+							"page_number": {"1"},
+							"page_size":   {"50"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StringResponse(heredoc.Docf(`
+						{
+							"sessions": [
+								{
+									"id": "sess1",
+									"name": "Build artifacts",
+									"user_id": 1,
+									"agent_id": 2,
+									"logs": "",
+									"state": "completed",
+									"owner_id": 10,
+									"repo_id": 1000,
+									"resource_type": "pull",
+									"resource_id": 2000,
+									"created_at": "%[1]s"
+								}
+							]
+						}`,
+						sampleDateString,
+					)),
+				)
+				// GraphQL hydration
+				reg.Register(
+					httpmock.GraphQL(`query FetchPRsForAgentTaskSessions\b`),
+					httpmock.GraphQLQuery(heredoc.Docf(`
+						{
+							"data": {
+								"nodes": [
+									{
+										"__typename": "PullRequest",
+										"id": "PR_node",
+										"fullDatabaseId": "2000",
+										"number": 42,
+										"title": "Improve docs",
+										"state": "OPEN",
+										"url": "https://github.com/OWNER/REPO/pull/42",
+										"body": "",
+										"createdAt": "%[1]s",
+										"updatedAt": "%[1]s",
+										"repository": {
+											"nameWithOwner": "OWNER/REPO"
+										}
+									}
+								]
+							}
+						}`,
+						sampleDateString,
+					), func(q string, vars map[string]interface{}) {
+						assert.Equal(t, []interface{}{"PR_kwDNA-jNB9A"}, vars["ids"])
+					}),
+				)
+			},
+			wantOut: []*Session{
+				{
+					session: session{
+						ID:           "sess1",
+						Name:         "Build artifacts",
+						UserID:       1,
+						AgentID:      2,
+						Logs:         "",
+						State:        "completed",
+						OwnerID:      10,
+						RepoID:       1000,
+						ResourceType: "pull",
+						ResourceID:   2000,
+						CreatedAt:    sampleDate,
+					},
+					PullRequest: &api.PullRequest{
+						ID:             "PR_node",
+						FullDatabaseID: "2000",
+						Number:         42,
+						Title:          "Improve docs",
+						State:          "OPEN",
+						URL:            "https://github.com/OWNER/REPO/pull/42",
+						Body:           "",
+						CreatedAt:      sampleDate,
+						UpdatedAt:      sampleDate,
+						Repository: &api.PRRepository{
+							NameWithOwner: "OWNER/REPO",
+						},
+					},
+				},
+			},
+		},
+		{
+			name:    "multiple sessions, paginated",
+			perPage: 1, // to enforce pagination
+			limit:   2,
+			httpStubs: func(t *testing.T, reg *httpmock.Registry) {
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions/nwo/OWNER/REPO", url.Values{
+							"page_number": {"1"},
+							"page_size":   {"1"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StringResponse(heredoc.Docf(`
+						{
+							"sessions": [
+								{
+									"id": "sess1",
+									"name": "Build artifacts",
+									"user_id": 1,
+									"agent_id": 2,
+									"logs": "",
+									"state": "completed",
+									"owner_id": 10,
+									"repo_id": 1000,
+									"resource_type": "pull",
+									"resource_id": 2000,
+									"created_at": "%[1]s"
+								}
+							]
+						}`,
+						sampleDateString,
+					)),
+				)
+
+				// Second page
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions/nwo/OWNER/REPO", url.Values{
+							"page_number": {"2"},
+							"page_size":   {"1"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StringResponse(heredoc.Docf(`
+						{
+							"sessions": [
+								{
+									"id": "sess2",
+									"name": "Build artifacts",
+									"user_id": 1,
+									"agent_id": 2,
+									"logs": "",
+									"state": "completed",
+									"owner_id": 10,
+									"repo_id": 1000,
+									"resource_type": "pull",
+									"resource_id": 2001,
+									"created_at": "%[1]s"
+								}
+							]
+						}`,
+						sampleDateString,
+					)),
+				)
+				// GraphQL hydration
+				reg.Register(
+					httpmock.GraphQL(`query FetchPRsForAgentTaskSessions\b`),
+					httpmock.GraphQLQuery(heredoc.Docf(`
+						{
+							"data": {
+								"nodes": [
+									{
+										"__typename": "PullRequest",
+										"id": "PR_node",
+										"fullDatabaseId": "2000",
+										"number": 42,
+										"title": "Improve docs",
+										"state": "OPEN",
+										"url": "https://github.com/OWNER/REPO/pull/42",
+										"body": "",
+										"createdAt": "%[1]s",
+										"updatedAt": "%[1]s",
+										"repository": {
+											"nameWithOwner": "OWNER/REPO"
+										}
+									},
+									{
+										"__typename": "PullRequest",
+										"id": "PR_node",
+										"fullDatabaseId": "2001",
+										"number": 43,
+										"title": "Improve docs",
+										"state": "OPEN",
+										"url": "https://github.com/OWNER/REPO/pull/43",
+										"body": "",
+										"createdAt": "%[1]s",
+										"updatedAt": "%[1]s",
+										"repository": {
+											"nameWithOwner": "OWNER/REPO"
+										}
+									}
+								]
+							}
+						}`,
+						sampleDateString,
+					), func(q string, vars map[string]interface{}) {
+						assert.Equal(t, []interface{}{"PR_kwDNA-jNB9A", "PR_kwDNA-jNB9E"}, vars["ids"])
+					}),
+				)
+			},
+			wantOut: []*Session{
+				{
+					session: session{
+						ID:           "sess1",
+						Name:         "Build artifacts",
+						UserID:       1,
+						AgentID:      2,
+						Logs:         "",
+						State:        "completed",
+						OwnerID:      10,
+						RepoID:       1000,
+						ResourceType: "pull",
+						ResourceID:   2000,
+						CreatedAt:    sampleDate,
+					},
+					PullRequest: &api.PullRequest{
+						ID:             "PR_node",
+						FullDatabaseID: "2000",
+						Number:         42,
+						Title:          "Improve docs",
+						State:          "OPEN",
+						URL:            "https://github.com/OWNER/REPO/pull/42",
+						Body:           "",
+						CreatedAt:      sampleDate,
+						UpdatedAt:      sampleDate,
+						Repository: &api.PRRepository{
+							NameWithOwner: "OWNER/REPO",
+						},
+					},
+				},
+				{
+					session: session{
+						ID:           "sess2",
+						Name:         "Build artifacts",
+						UserID:       1,
+						AgentID:      2,
+						Logs:         "",
+						State:        "completed",
+						OwnerID:      10,
+						RepoID:       1000,
+						ResourceType: "pull",
+						ResourceID:   2001,
+						CreatedAt:    sampleDate,
+					},
+					PullRequest: &api.PullRequest{
+						ID:             "PR_node",
+						FullDatabaseID: "2001",
+						Number:         43,
+						Title:          "Improve docs",
+						State:          "OPEN",
+						URL:            "https://github.com/OWNER/REPO/pull/43",
+						Body:           "",
+						CreatedAt:      sampleDate,
+						UpdatedAt:      sampleDate,
+						Repository: &api.PRRepository{
+							NameWithOwner: "OWNER/REPO",
+						},
+					},
+				},
+			},
+		},
+		{
+			name:  "API error",
+			limit: 10,
+			httpStubs: func(t *testing.T, reg *httpmock.Registry) {
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions/nwo/OWNER/REPO", url.Values{
+							"page_number": {"1"},
+							"page_size":   {"50"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StatusStringResponse(500, "{}"),
+				)
+			},
+			wantErr: "failed to list sessions:",
+		}, {
+			name:  "API error at hydration",
+			limit: 10,
+			httpStubs: func(t *testing.T, reg *httpmock.Registry) {
+				reg.Register(
+					httpmock.WithHost(
+						httpmock.QueryMatcher("GET", "agents/sessions/nwo/OWNER/REPO", url.Values{
+							"page_number": {"1"},
+							"page_size":   {"50"},
+						}),
+						"api.githubcopilot.com",
+					),
+					httpmock.StringResponse(heredoc.Docf(`
+						{
+							"sessions": [
+								{
+									"id": "sess1",
+									"name": "Build artifacts",
+									"user_id": 1,
+									"agent_id": 2,
+									"logs": "",
+									"state": "completed",
+									"owner_id": 10,
+									"repo_id": 1000,
+									"resource_type": "pull",
+									"resource_id": 2000,
+									"created_at": "%[1]s"
+								}
+							]
+						}`,
+						sampleDateString,
+					)),
+				)
+				// GraphQL hydration
+				reg.Register(
+					httpmock.GraphQL(`query FetchPRsForAgentTaskSessions\b`),
+					httpmock.StatusStringResponse(500, `{}`),
+				)
+			},
+			wantErr: `failed to fetch session resources: non-200 OK status code:`,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			reg := &httpmock.Registry{}
+			if tt.httpStubs != nil {
+				tt.httpStubs(t, reg)
+			}
+			defer reg.Verify(t)
+
+			httpClient := &http.Client{Transport: reg}
+
+			cfg := config.NewBlankConfig()
+			capiClient := NewCAPIClient(httpClient, cfg.Authentication())
+
+			if tt.perPage != 0 {
+				last := defaultSessionsPerPage
+				defaultSessionsPerPage = tt.perPage
+				defer func() {
+					defaultSessionsPerPage = last
+				}()
+			}
+
+			sessions, err := capiClient.ListSessionsForRepo(context.Background(), "OWNER", "REPO", tt.limit)
+
+			if tt.wantErr != "" {
+				require.ErrorContains(t, err, tt.wantErr)
+				require.Nil(t, sessions)
+				return
+			}
+
+			require.NoError(t, err)
+			require.Equal(t, tt.wantOut, sessions)
+		})
+	}
+}