Add to-do list template library commands

.surface

@@ -336,6 +336,8 @@ ARG basecamp subscriptions unsubscribe 00 <id|url>
 ARG basecamp templates construct 00 <template_id>
 ARG basecamp templates construction 00 <template_id>
 ARG basecamp templates construction 01 <construction_id>
+ARG basecamp templates copy 00 <template_id>
+ARG basecamp templates copy-status 00 <copy_id>
 ARG basecamp templates create 00 <name>
 ARG basecamp templates delete 00 <id>
 ARG basecamp templates show 00 <id>
@@ -991,8 +993,11 @@ CMD basecamp subscriptions unsubscribe
 CMD basecamp templates
 CMD basecamp templates construct
 CMD basecamp templates construction
+CMD basecamp templates copy
+CMD basecamp templates copy-status
 CMD basecamp templates create
 CMD basecamp templates delete
+CMD basecamp templates library
 CMD basecamp templates list
 CMD basecamp templates show
 CMD basecamp templates update
@@ -13296,6 +13301,50 @@ FLAG basecamp templates construction --stats type=bool
 FLAG basecamp templates construction --styled type=bool
 FLAG basecamp templates construction --todolist type=string
 FLAG basecamp templates construction --verbose type=count
+FLAG basecamp templates copy --account type=string
+FLAG basecamp templates copy --agent type=bool
+FLAG basecamp templates copy --cache-dir type=string
+FLAG basecamp templates copy --confirm-adding-people type=bool
+FLAG basecamp templates copy --count type=bool
+FLAG basecamp templates copy --help type=bool
+FLAG basecamp templates copy --hints type=bool
+FLAG basecamp templates copy --ids-only type=bool
+FLAG basecamp templates copy --in type=string
+FLAG basecamp templates copy --jq type=string
+FLAG basecamp templates copy --json type=bool
+FLAG basecamp templates copy --markdown type=bool
+FLAG basecamp templates copy --md type=bool
+FLAG basecamp templates copy --no-hints type=bool
+FLAG basecamp templates copy --no-stats type=bool
+FLAG basecamp templates copy --profile type=string
+FLAG basecamp templates copy --project type=string
+FLAG basecamp templates copy --quiet type=bool
+FLAG basecamp templates copy --stats type=bool
+FLAG basecamp templates copy --styled type=bool
+FLAG basecamp templates copy --todolist type=string
+FLAG basecamp templates copy --todoset type=string
+FLAG basecamp templates copy --verbose type=count
+FLAG basecamp templates copy-status --account type=string
+FLAG basecamp templates copy-status --agent type=bool
+FLAG basecamp templates copy-status --cache-dir type=string
+FLAG basecamp templates copy-status --count type=bool
+FLAG basecamp templates copy-status --help type=bool
+FLAG basecamp templates copy-status --hints type=bool
+FLAG basecamp templates copy-status --ids-only type=bool
+FLAG basecamp templates copy-status --in type=string
+FLAG basecamp templates copy-status --jq type=string
+FLAG basecamp templates copy-status --json type=bool
+FLAG basecamp templates copy-status --markdown type=bool
+FLAG basecamp templates copy-status --md type=bool
+FLAG basecamp templates copy-status --no-hints type=bool
+FLAG basecamp templates copy-status --no-stats type=bool
+FLAG basecamp templates copy-status --profile type=string
+FLAG basecamp templates copy-status --project type=string
+FLAG basecamp templates copy-status --quiet type=bool
+FLAG basecamp templates copy-status --stats type=bool
+FLAG basecamp templates copy-status --styled type=bool
+FLAG basecamp templates copy-status --todolist type=string
+FLAG basecamp templates copy-status --verbose type=count
 FLAG basecamp templates create --account type=string
 FLAG basecamp templates create --agent type=bool
 FLAG basecamp templates create --cache-dir type=string
@@ -13341,6 +13390,27 @@ FLAG basecamp templates delete --stats type=bool
 FLAG basecamp templates delete --styled type=bool
 FLAG basecamp templates delete --todolist type=string
 FLAG basecamp templates delete --verbose type=count
+FLAG basecamp templates library --account type=string
+FLAG basecamp templates library --agent type=bool
+FLAG basecamp templates library --cache-dir type=string
+FLAG basecamp templates library --count type=bool
+FLAG basecamp templates library --help type=bool
+FLAG basecamp templates library --hints type=bool
+FLAG basecamp templates library --ids-only type=bool
+FLAG basecamp templates library --in type=string
+FLAG basecamp templates library --jq type=string
+FLAG basecamp templates library --json type=bool
+FLAG basecamp templates library --markdown type=bool
+FLAG basecamp templates library --md type=bool
+FLAG basecamp templates library --no-hints type=bool
+FLAG basecamp templates library --no-stats type=bool
+FLAG basecamp templates library --profile type=string
+FLAG basecamp templates library --project type=string
+FLAG basecamp templates library --quiet type=bool
+FLAG basecamp templates library --stats type=bool
+FLAG basecamp templates library --styled type=bool
+FLAG basecamp templates library --todolist type=string
+FLAG basecamp templates library --verbose type=count
 FLAG basecamp templates list --account type=string
 FLAG basecamp templates list --agent type=bool
 FLAG basecamp templates list --cache-dir type=string
@@ -18426,8 +18496,11 @@ SUB basecamp subscriptions unsubscribe
 SUB basecamp templates
 SUB basecamp templates construct
 SUB basecamp templates construction
+SUB basecamp templates copy
+SUB basecamp templates copy-status
 SUB basecamp templates create
 SUB basecamp templates delete
+SUB basecamp templates library
 SUB basecamp templates list
 SUB basecamp templates show
 SUB basecamp templates update

API-COVERAGE.md

@@ -6,12 +6,14 @@ Coverage of Basecamp 3 API endpoints. Source: [bc3-api/sections](https://github.
 
 | Status | Sections | Endpoints |
 |--------|----------|-----------|
-| ✅ Implemented | 50 | 186 |
+| ✅ Implemented | 50 | 189 |
 | ⚠️ Blocked | 0 | 0 |
 | ⏭️ Out of scope | 4 | 12 |
-| **Total tracked** | **54** | **198** |
+| **Total tracked** | **54** | **201** |
 
-**186 of 186 tracked in-scope endpoints.** The last gap — `GET
+**189 of 189 tracked in-scope endpoints.** SDK v0.16.0 adds the three to-do
+list template-library operations, available through `templates library`,
+`templates copy`, and `templates copy-status`. The previous last gap — `GET
 /uploads/:id/versions.json` — closed with the v0.14.0 SDK bump. The command
 (`files versions`) was written earlier but held: the SDK's
 `UploadsService.ListVersions` decoded the response as `[]Upload` when the API
@@ -43,16 +45,15 @@ Out-of-scope sections are excluded from parity totals and scripts: chatbots (dif
 
 > Note: the per-row `Endpoints` column in the Coverage by Section table sums higher than the Summary totals above. The discrepancy predates the BC5 baseline; the row count (48 sections) is authoritative for the `Since` column. Reconciling endpoint counts is pre-existing maintenance, tracked separately.
 
-**SDK version:** v0.15.1 (adds Bubble Up write support; pinned to the
-pre-release bubble-up SDK head until the v0.15.1 tag —
-`internal/version/sdk-provenance.json` is authoritative). The command surface below largely dates to the v0.12.0 bump,
-which added 20 exported Go methods over 13 new backend operations; the extra
-seven wrapped endpoints that already existed but were reachable only through
-the raw generated client, which the andon-cord rule forbids the CLI from
-calling. v0.13.0–v0.15.0 corrected shapes and routes (pointerized optional
-fields, page-selection semantics, field-keyed 422 payloads) rather than opening
-new sections; their additions here are `files replace` and the un-held
-`files versions`, both from v0.14.0's upload work (basecamp/basecamp-sdk#683).
+**SDK version:** v0.16.0 (adds the to-do list template library and asynchronous
+copy operations; `internal/version/sdk-provenance.json` is authoritative). The
+command surface below largely dates to the v0.12.0 bump, which added 20 exported
+Go methods over 13 new backend operations; the extra seven wrapped endpoints
+that already existed but were reachable only through the raw generated client,
+which the andon-cord rule forbids the CLI from calling. v0.13.0–v0.15.0
+corrected shapes and routes (pointerized optional fields, page-selection
+semantics, field-keyed 422 payloads) and added `files replace`, `files versions`,
+and Bubble Up writes. v0.16.0 adds the three template-library operations.
 
 Those methods land as four new command groups (`bookmarks`, `drafts`, `notes`,
 `calendars`) and three extensions (`assignments` gains the Up Next verbs,
@@ -228,7 +229,7 @@ cannot faithfully cover at least one endpoint for a reason outside the CLI. A
 | **Webhooks** |
 | webhooks | 7 | `webhooks` | ✅ | BC4 | - | list, show, create, update, delete |
 | **Templates** |
-| templates | 7 | `templates` | ✅ | BC4 | - | list, show, create, update, delete, construct, construction |
+| templates | 10 | `templates` | ✅ | BC4 | - | list, show, create, update, delete, construct, construction, library, copy, copy-status |
 | **Time Tracking** |
 | timesheets | 6 | `timesheet` | ✅ | BC4 | - | list, show, create, update, delete |
 | **Subscriptions** |

e2e/smoke/smoke_account.bats

@@ -21,6 +21,13 @@ setup_file() {
   assert_json_value '.ok' 'true'
 }
 
+@test "templates library returns to-do list templates" {
+  run_smoke basecamp templates library --json
+  [[ "$status" -ne 0 ]] && mark_unverifiable "Template library not available in this account"
+  assert_success
+  assert_json_value '.ok' 'true'
+}
+
 @test "people show returns person detail" {
   run_smoke basecamp people show me --json
   assert_success

e2e/smoke/smoke_bookmarks.bats

@@ -49,3 +49,11 @@ setup_file() {
 @test "bookmarks remove is out of scope" {
   mark_out_of_scope "Mutating - exercised by the live add/check/remove round-trip"
 }
+
+@test "bubble-up add is out of scope" {
+  mark_out_of_scope "Mutates the current user's personal readings"
+}
+
+@test "bubble-up remove is out of scope" {
+  mark_out_of_scope "Mutates the current user's personal readings"
+}

e2e/smoke/smoke_lifecycle.bats

@@ -97,6 +97,14 @@ load smoke_helper
   mark_out_of_scope "Depends on templates construct (OOS)"
 }
 
+@test "templates copy is out of scope" {
+  mark_out_of_scope "Copies a to-do list into a project and may grant project access"
+}
+
+@test "templates copy-status is out of scope" {
+  mark_out_of_scope "Depends on templates copy (OOS)"
+}
+
 @test "templates create is out of scope" {
   mark_out_of_scope "Account-wide template mutation"
 }

e2e/templates.bats

@@ -131,6 +131,33 @@ load test_helper
 }
 
 
+# Template library copy errors
+
+@test "templates copy without template id shows error" {
+  create_credentials
+  create_global_config '{"account_id": 99999}'
+
+  run basecamp templates copy
+  assert_failure
+  assert_output_contains "ID required"
+}
+
+@test "templates copy-status without copy id shows error" {
+  create_credentials
+  create_global_config '{"account_id": 99999}'
+
+  run basecamp templates copy-status
+  assert_failure
+  assert_output_contains "ID required"
+}
+
+@test "templates copy --confirm-adding-people is accepted" {
+  run basecamp templates copy --help
+  assert_success
+  assert_output_contains "--confirm-adding-people"
+}
+
+
 # Flag parsing
 
 @test "templates list --status without value shows error" {
@@ -163,6 +190,8 @@ load test_helper
   assert_output_contains "basecamp templates"
   assert_output_contains "construct"
   assert_output_contains "construction"
+  assert_output_contains "library"
+  assert_output_contains "copy-status"
 }
 
 

go.mod

@@ -6,7 +6,7 @@ require (
 	charm.land/bubbles/v2 v2.2.1
 	charm.land/bubbletea/v2 v2.0.9
 	charm.land/lipgloss/v2 v2.0.6
-	github.com/basecamp/basecamp-sdk/go v0.15.1-0.20260902205921-f439f493caf2
+	github.com/basecamp/basecamp-sdk/go v0.16.0
 	github.com/basecamp/cli v0.2.2-0.20260828230226-767413fc712d
 	github.com/basecamp/mcp v0.0.0-20260828100356-2d6f44b51e9d
 	github.com/basecamp/surfguard/go v0.1.0
@@ -134,7 +134,7 @@ require (
 	go.opentelemetry.io/otel/metric v1.46.0 // indirect
 	go.opentelemetry.io/otel/trace v1.46.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.5 // indirect
-	golang.org/x/crypto v0.55.0 // indirect
+	golang.org/x/crypto v0.56.0 // indirect
 	golang.org/x/oauth2 v0.36.0 // indirect
 	golang.org/x/sync v0.22.0 // indirect
 	golang.org/x/term v0.45.0 // indirect

go.sum

@@ -87,8 +87,8 @@ 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 v0.15.1-0.20260902205921-f439f493caf2 h1:bIaTwvIoWTNirPigLsXsC912abkIYDTFHuOrkSyB96U=
-github.com/basecamp/basecamp-sdk/go v0.15.1-0.20260902205921-f439f493caf2/go.mod h1:Cs9DV8iRJaVT4+IQXGZTeyG2nQAV2kQda7GHuBOeonY=
+github.com/basecamp/basecamp-sdk/go v0.16.0 h1:6MfdBf+tgDtfzSHLDhJO9yqsCExNvtWUlK6gzTKzMvM=
+github.com/basecamp/basecamp-sdk/go v0.16.0/go.mod h1:Cs9DV8iRJaVT4+IQXGZTeyG2nQAV2kQda7GHuBOeonY=
 github.com/basecamp/cli v0.2.2-0.20260828230226-767413fc712d h1:jAzDrCCzDpIwhbFT1xVVs0z2xpXoDEkomHfKB2bUUp8=
 github.com/basecamp/cli v0.2.2-0.20260828230226-767413fc712d/go.mod h1:iTBTaWvsPEFIcZfkxQHEfISyJ6sZ7036K6bNx0RY3EE=
 github.com/basecamp/mcp v0.0.0-20260828100356-2d6f44b51e9d h1:zEQVGq1x1nhKMZ2TudFAcSJ32CHT8richI1vQakIKz4=
@@ -474,8 +474,8 @@ go.yaml.in/yaml/v2 v2.4.4/go.mod h1:gMZqIpDtDqOfM0uNfy0SkpRhvUryYH0Z6wdMYcacYXQ=
 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 go.yaml.in/yaml/v3 v3.0.5 h1:N6y/pJk8buWs9NY5ERU2HSMfm+IuD/OtfdAnq6kESPw=
 go.yaml.in/yaml/v3 v3.0.5/go.mod h1:HVTZu1O7/Vkt2N+BFy8Zza+lnLsABggaTM2ZpNIGuKg=
-golang.org/x/crypto v0.55.0 h1:+KWHjbgOaAQ66dh/YlkZKHlz9ZUlq61AFirAR9ntP8M=
-golang.org/x/crypto v0.55.0/go.mod h1:uq0V9dE/fzQuJtbnL+2EhWOE63vo164FY8xqEnV9xis=
+golang.org/x/crypto v0.56.0 h1:GUh5Ii4J5jtcseSMiRqr1jXCNHoxjeV9Fmekc2oLy6Y=
+golang.org/x/crypto v0.56.0/go.mod h1:OMW5y6CY9l38uPLmxU6l6pwcXp1obtLo3e6gT7gQR2I=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 h1:mgKeJMpvi0yx/sU5GsxQ7p6s2wtOnGAHZWCHUM4KGzY=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546/go.mod h1:j/pmGrbnkbPtQfxEe5D0VQhZC6qKbfKifgD0oM7sR70=
 golang.org/x/mod v0.40.0 h1:hUv+3cXcdRHz08UmSiOob7sadHig73uo5bkXxQ/tvUs=

internal/commands/commands.go

@@ -89,7 +89,7 @@ func CommandCategories() []CommandCategory {
 			Name: "Organization",
 			Commands: []CommandInfo{
 				{Name: "people", Category: "organization", Description: "Manage people and access", Actions: []string{"list", "show", "update", "out-of-office", "pingable", "add", "remove"}},
-				{Name: "templates", Category: "organization", Description: "Manage project templates", Actions: []string{"list", "show", "create", "update", "delete", "construct"}},
+				{Name: "templates", Category: "organization", Description: "Manage project and to-do list templates", Actions: []string{"list", "show", "create", "update", "delete", "construct", "construction", "library", "copy", "copy-status"}},
 				{Name: "webhooks", Category: "organization", Description: "Manage webhooks", Actions: []string{"list", "show", "create", "update", "delete"}},
 				{Name: "lineup", Category: "organization", Description: "Manage lineup markers", Actions: []string{"list", "create", "update", "delete"}},
 			},