Add lineup list command

.surface

@@ -149,6 +149,7 @@ CMD basecamp help
 CMD basecamp lineup
 CMD basecamp lineup create
 CMD basecamp lineup delete
+CMD basecamp lineup list
 CMD basecamp lineup update
 CMD basecamp login
 CMD basecamp logout
@@ -3606,6 +3607,26 @@ FLAG basecamp lineup delete --stats type=bool
 FLAG basecamp lineup delete --styled type=bool
 FLAG basecamp lineup delete --todolist type=string
 FLAG basecamp lineup delete --verbose type=count
+FLAG basecamp lineup list --account type=string
+FLAG basecamp lineup list --agent type=bool
+FLAG basecamp lineup list --cache-dir type=string
+FLAG basecamp lineup list --count type=bool
+FLAG basecamp lineup list --hints type=bool
+FLAG basecamp lineup list --ids-only type=bool
+FLAG basecamp lineup list --in type=string
+FLAG basecamp lineup list --jq type=string
+FLAG basecamp lineup list --json type=bool
+FLAG basecamp lineup list --markdown type=bool
+FLAG basecamp lineup list --md type=bool
+FLAG basecamp lineup list --no-hints type=bool
+FLAG basecamp lineup list --no-stats type=bool
+FLAG basecamp lineup list --profile type=string
+FLAG basecamp lineup list --project type=string
+FLAG basecamp lineup list --quiet type=bool
+FLAG basecamp lineup list --stats type=bool
+FLAG basecamp lineup list --styled type=bool
+FLAG basecamp lineup list --todolist type=string
+FLAG basecamp lineup list --verbose type=count
 FLAG basecamp lineup update --account type=string
 FLAG basecamp lineup update --agent type=bool
 FLAG basecamp lineup update --cache-dir type=string
@@ -7326,6 +7347,7 @@ SUB basecamp help
 SUB basecamp lineup
 SUB basecamp lineup create
 SUB basecamp lineup delete
+SUB basecamp lineup list
 SUB basecamp lineup update
 SUB basecamp login
 SUB basecamp logout

API-COVERAGE.md

@@ -6,15 +6,15 @@ Coverage of Basecamp 3 API endpoints. Source: [bc3-api/sections](https://github.
 
 | Status | Sections | Endpoints |
 |--------|----------|-----------|
-| ✅ Implemented | 37 | 136 |
+| ✅ Implemented | 37 | 137 |
 | ⏭️ Out of scope | 4 | 12 |
-| **Total (docs)** | **41** | **148** |
+| **Total (docs)** | **41** | **149** |
 
-**100% coverage of in-scope API** (136/136 endpoints)
+**100% coverage of in-scope API** (137/137 endpoints)
 
 Out-of-scope sections are excluded from parity totals and scripts: chatbots (different auth), legacy Clientside (deprecated)
 
-**SDK version:** v0.4.0 — uniform pagination (Limit/Page) on all List methods; `types.FlexibleTime` and `types.FlexInt` for wire format handling.
+**SDK version:** v0.6.0 — uniform pagination (Limit/Page) on all List methods; `types.FlexibleTime` and `types.FlexInt` for wire format handling.
 
 ## Coverage by Section
 
@@ -77,7 +77,7 @@ Out-of-scope sections are excluded from parity totals and scripts: chatbots (dif
 | **Chatbots** |
 | chatbots | 10 | - | ⏭️ | skip | Requires chatbot key, not OAuth (see notes) |
 | **Lineup** |
-| lineup_markers | 3 | `lineup` | ✅ | - | create, update, delete markers |
+| lineup_markers | 4 | `lineup` | ✅ | - | list, create, update, delete markers |
 | **Reference Only** |
 | basecamps | 0 | - | - | - | Documentation reference, no endpoints |
 | rich_text | 0 | - | - | - | Documentation reference, no endpoints |

e2e/smoke/.qa-allowlist

@@ -22,6 +22,9 @@ test_timesheet_item_returns_timesheet_item_detail # timesheets not enabled — s
 
 # Lineup API may not exist on all environments
 test_lineup_create_creates_a_lineup_marker # API not available on some servers — smoke
+test_lineup_list_returns_markers # API not available on some servers — smoke
+test_lineup_update_updates_a_lineup_marker # depends on lineup create — smoke
+test_lineup_delete_removes_a_lineup_marker # depends on lineup create — smoke
 
 # SDK bug: TodolistOrGroup0 union type expects wrapped JSON, API returns flat
 test_todolists_show_returns_todolist_detail # SDK deserialization mismatch — smoke

e2e/smoke/smoke_lifecycle.bats

@@ -128,16 +128,6 @@ load smoke_helper
   mark_out_of_scope "Bulk completion — destructive, no undo"
 }
 
-# --- Structurally untestable (API returns 204 No Content, no ID to chain) ---
-
-@test "lineup update is out of scope" {
-  mark_out_of_scope "API returns 204 No Content — no ID to chain"
-}
-
-@test "lineup delete is out of scope" {
-  mark_out_of_scope "API returns 204 No Content — no ID to chain"
-}
-
 # --- Code-path equivalence: docs group shares implementation with files ---
 
 @test "docs archive is out of scope" {

e2e/smoke/smoke_lineup.bats

@@ -1,9 +1,5 @@
 #!/usr/bin/env bats
-# smoke_lineup.bats - Level 1: Lineup create
-#
-# Note: lineup update/delete are OOS — the API returns 204 No Content
-# (no ID in response), making them structurally untestable without a
-# fragile list-after-create workaround. See smoke_lifecycle.bats.
+# smoke_lineup.bats - Level 1: Lineup CRUD lifecycle
 
 load smoke_helper
 
@@ -15,8 +11,50 @@ setup_file() {
 @test "lineup create creates a lineup marker" {
   local future_date
   future_date=$(date -v+7d +%Y-%m-%d 2>/dev/null || date -d "+7 days" +%Y-%m-%d)
-  run_smoke basecamp lineup create "Smoke lineup $(date +%s)" "$future_date" --json
+  local marker_name="Smoke lineup $(date +%s)"
+  run_smoke basecamp lineup create "$marker_name" "$future_date" --json
   # Lineup API may not exist on all environments (404 → validation error)
   [[ "$status" -ne 0 ]] && mark_unverifiable "Lineup API not available"
   assert_json_value '.ok' 'true'
+  echo "$marker_name" > "$BATS_FILE_TMPDIR/marker_name"
+}
+
+@test "lineup list returns markers" {
+  run_smoke basecamp lineup list --json
+  [[ "$status" -ne 0 ]] && mark_unverifiable "Lineup API not available"
+  assert_json_value '.ok' 'true'
+}
+
+@test "lineup update updates a lineup marker" {
+  local name_file="$BATS_FILE_TMPDIR/marker_name"
+  [[ ! -f "$name_file" ]] && mark_unverifiable "No marker created by earlier test"
+  local marker_name
+  marker_name=$(cat "$name_file")
+  run_smoke basecamp lineup list --json
+  [[ "$status" -ne 0 ]] && mark_unverifiable "Lineup API not available"
+  assert_json_value '.ok' 'true'
+  local marker_id
+  marker_id=$(echo "$output" | jq -r --arg name "$marker_name" '[.data[] | select(.name == $name)][0].id // empty')
+  [[ -z "$marker_id" ]] && mark_unverifiable "No markers found to update"
+  local updated_name="Updated $marker_name"
+  run_smoke basecamp lineup update "$marker_id" "$updated_name" --json
+  assert_success
+  assert_json_value '.ok' 'true'
+  echo "$updated_name" > "$BATS_FILE_TMPDIR/marker_name"
+}
+
+@test "lineup delete removes a lineup marker" {
+  local name_file="$BATS_FILE_TMPDIR/marker_name"
+  [[ ! -f "$name_file" ]] && mark_unverifiable "No marker created by earlier test"
+  local marker_name
+  marker_name=$(cat "$name_file")
+  run_smoke basecamp lineup list --json
+  [[ "$status" -ne 0 ]] && mark_unverifiable "Lineup API not available"
+  assert_json_value '.ok' 'true'
+  local marker_id
+  marker_id=$(echo "$output" | jq -r --arg name "$marker_name" '[.data[] | select(.name == $name)][0].id // empty')
+  [[ -z "$marker_id" ]] && mark_unverifiable "No markers found to delete"
+  run_smoke basecamp lineup delete "$marker_id" --json
+  assert_success
+  assert_json_value '.ok' 'true'
 }

go.mod

@@ -6,7 +6,7 @@ require (
 	charm.land/bubbles/v2 v2.0.0
 	charm.land/bubbletea/v2 v2.0.2
 	charm.land/lipgloss/v2 v2.0.2
-	github.com/basecamp/basecamp-sdk/go v0.6.1-0.20260318221909-49475983b9c8
+	github.com/basecamp/basecamp-sdk/go v0.6.1-0.20260319050216-1c33ce43c305
 	github.com/basecamp/cli v0.1.1
 	github.com/charmbracelet/bubbles v1.0.0
 	github.com/charmbracelet/glamour v1.0.0

go.sum

@@ -25,8 +25,8 @@ github.com/aymanbagabas/go-udiff v0.4.1 h1:OEIrQ8maEeDBXQDoGCbbTTXYJMYRCRO1fnodZ
 github.com/aymanbagabas/go-udiff v0.4.1/go.mod h1:0L9PGwj20lrtmEMeyw4WKJ/TMyDtvAoK9bf2u/mNo3w=
 github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
 github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
-github.com/basecamp/basecamp-sdk/go v0.6.1-0.20260318221909-49475983b9c8 h1:WsLan1O+1GWBSQEn+dTd63roBunjojffjaoKnQ4g33U=
-github.com/basecamp/basecamp-sdk/go v0.6.1-0.20260318221909-49475983b9c8/go.mod h1:g05DM58QkUm4/mvBAvRiugPw+F4trliuGkRGg8y+Th4=
+github.com/basecamp/basecamp-sdk/go v0.6.1-0.20260319050216-1c33ce43c305 h1:NuMRr9mXUhSZAxxxLLfOAhiCTeYDlt/h7HaoarRLGjk=
+github.com/basecamp/basecamp-sdk/go v0.6.1-0.20260319050216-1c33ce43c305/go.mod h1:g05DM58QkUm4/mvBAvRiugPw+F4trliuGkRGg8y+Th4=
 github.com/basecamp/cli v0.1.1 h1:FAF3M09xo1m7gJJXf38glCkT50ZUuvz+31f+c3R3zcc=
 github.com/basecamp/cli v0.1.1/go.mod h1:NTHe+keCTGI2qM5sMXdkUN0QgU3zGbwnBxcmg8vD5QU=
 github.com/bmatcuk/doublestar v1.1.1/go.mod h1:UD6OnuiIn0yFxxA2le/rnRU1G4RaI4UvFv1sNto9p6w=

internal/commands/commands.go

@@ -85,7 +85,7 @@ func CommandCategories() []CommandCategory {
 				{Name: "people", Category: "organization", Description: "Manage people and access", Actions: []string{"list", "show", "pingable", "add", "remove"}},
 				{Name: "templates", Category: "organization", Description: "Manage project templates", Actions: []string{"list", "show", "create", "update", "delete", "construct"}},
 				{Name: "webhooks", Category: "organization", Description: "Manage webhooks", Actions: []string{"list", "show", "create", "update", "delete"}},
-				{Name: "lineup", Category: "organization", Description: "Manage lineup markers", Actions: []string{"create", "update", "delete"}},
+				{Name: "lineup", Category: "organization", Description: "Manage lineup markers", Actions: []string{"list", "create", "update", "delete"}},
 			},
 		},
 		{

internal/commands/lineup.go

@@ -29,6 +29,7 @@ They apply to the entire Basecamp account.`,
 	}
 
 	cmd.AddCommand(
+		newLineupListCmd(),
 		newLineupCreateCmd(),
 		newLineupUpdateCmd(),
 		newLineupDeleteCmd(),
@@ -37,6 +38,36 @@ They apply to the entire Basecamp account.`,
 	return cmd
 }
 
+func newLineupListCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "list",
+		Short: "List lineup markers",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			app := appctx.FromContext(cmd.Context())
+
+			if err := ensureAccount(cmd, app); err != nil {
+				return err
+			}
+
+			result, err := app.Account().Lineup().ListMarkers(cmd.Context())
+			if err != nil {
+				return convertSDKError(err)
+			}
+
+			return app.OK(result.Markers,
+				output.WithSummary(fmt.Sprintf("%d lineup markers", len(result.Markers))),
+				output.WithBreadcrumbs(
+					output.Breadcrumb{
+						Action:      "create",
+						Cmd:         "basecamp lineup create <name> <date>",
+						Description: "Create new marker",
+					},
+				),
+			)
+		},
+	}
+}
+
 func newLineupCreateCmd() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "create <name> <date>",

internal/version/sdk-provenance.json

@@ -1,9 +1,9 @@
 {
   "sdk": {
     "module": "github.com/basecamp/basecamp-sdk/go",
-    "version": "v0.6.1-0.20260318221909-49475983b9c8",
-    "revision": "49475983b9c8",
-    "updated_at": "2026-03-18T22:19:09Z"
+    "version": "v0.6.1-0.20260319050216-1c33ce43c305",
+    "revision": "1c33ce43c305",
+    "updated_at": "2026-03-19T05:02:16Z"
   },
   "api": {
     "repo": "basecamp/bc3",

skills/basecamp/SKILL.md

@@ -573,6 +573,7 @@ basecamp subscriptions remove <id> --people 1,2,3  # Remove people
 ### Lineup (Account-wide Markers)
 
 ```bash
+basecamp lineup list                              # List all markers
 basecamp lineup create "Milestone" "2024-03-15"   # Create marker
 basecamp lineup create "Launch" tomorrow          # Natural date parsing
 basecamp lineup update <id> "New Name" "+7"