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feat: add manual chat title regeneration (#23633)
## Summary
Adds a "Generate new title" action that lets users manually regenerate a
chat's title using richer conversation context than the automatic
first-message title path.
## Changes
### Backend
- **New endpoint:** `POST
/api/experimental/chats/{chatID}/title/regenerate` returns the updated
Chat with a regenerated title
- **Manual title algorithm:** Extracts useful user/assistant text turns
→ selects first user turn + last 3 turns → builds context with gap
markers → renders prompt with anti-recency guidance → calls lightweight
model → normalizes output
- **Helpers:** `extractManualTitleTurns`,
`selectManualTitleTurnIndexes`, `buildManualTitleContext`,
`renderManualTitlePrompt`, `generateManualTitle` — all private, with the
public `Server.RegenerateChatTitle` method
- **SDK:** `ExperimentalClient.RegenerateChatTitle(ctx, chatID) (Chat,
error)`
- Persists title via existing `UpdateChatByID` and broadcasts
`ChatEventKindTitleChange`
### Frontend
- API client method + React Query mutation with cache invalidation
- "Generate new title" menu item (with wand icon) in both TopBar and
Sidebar dropdown menus
- Loading/disabled state while regeneration is in-flight
- Error toast on failure
- Stories updated for both menus
### Tests
- `quickgen_test.go`: Table-driven tests for all 4 helper functions
(turn extraction, index selection, context building, prompt rendering)
- `exp_chats_test.go`: Handler tests (ChatNotFound,
NotFoundForDifferentUser, NoDaemon)
## Design notes
- The existing auto-title path (`maybeGenerateChatTitle`, `titleInput`)
is completely unchanged
- Manual regeneration uses richer context (first user turn + last 3
turns + gap markers) vs the auto path's single first message
- Endpoint is experimental and marked with `@x-apidocgen {"skip": true}`
This commit is contained in:
Michael Suchacz
@@ -4932,6 +4932,73 @@ func (q *sqlQuerier) GetChatMessagesByChatID(ctx context.Context, arg GetChatMes
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return items, nil
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}
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const getChatMessagesByChatIDAscPaginated = `-- name: GetChatMessagesByChatIDAscPaginated :many
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SELECT
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id, chat_id, model_config_id, created_at, role, content, visibility, input_tokens, output_tokens, total_tokens, reasoning_tokens, cache_creation_tokens, cache_read_tokens, context_limit, compressed, created_by, content_version, total_cost_micros, runtime_ms, deleted, provider_response_id
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FROM
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chat_messages
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WHERE
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chat_id = $1::uuid
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AND id > $2::bigint
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AND visibility IN ('user', 'both')
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AND deleted = false
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ORDER BY
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id ASC
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LIMIT
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COALESCE(NULLIF($3::int, 0), 50)
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`
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type GetChatMessagesByChatIDAscPaginatedParams struct {
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ChatID uuid.UUID `db:"chat_id" json:"chat_id"`
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AfterID int64 `db:"after_id" json:"after_id"`
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LimitVal int32 `db:"limit_val" json:"limit_val"`
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}
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func (q *sqlQuerier) GetChatMessagesByChatIDAscPaginated(ctx context.Context, arg GetChatMessagesByChatIDAscPaginatedParams) ([]ChatMessage, error) {
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rows, err := q.db.QueryContext(ctx, getChatMessagesByChatIDAscPaginated, arg.ChatID, arg.AfterID, arg.LimitVal)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var items []ChatMessage
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for rows.Next() {
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var i ChatMessage
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if err := rows.Scan(
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&i.ID,
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&i.ChatID,
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&i.ModelConfigID,
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&i.CreatedAt,
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&i.Role,
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&i.Content,
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&i.Visibility,
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&i.InputTokens,
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&i.OutputTokens,
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&i.TotalTokens,
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&i.ReasoningTokens,
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&i.CacheCreationTokens,
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&i.CacheReadTokens,
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&i.ContextLimit,
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&i.Compressed,
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&i.CreatedBy,
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&i.ContentVersion,
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&i.TotalCostMicros,
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&i.RuntimeMs,
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&i.Deleted,
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&i.ProviderResponseID,
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); err != nil {
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return nil, err
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}
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items = append(items, i)
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}
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if err := rows.Close(); err != nil {
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return nil, err
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return items, nil
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}
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const getChatMessagesByChatIDDescPaginated = `-- name: GetChatMessagesByChatIDDescPaginated :many
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SELECT
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id, chat_id, model_config_id, created_at, role, content, visibility, input_tokens, output_tokens, total_tokens, reasoning_tokens, cache_creation_tokens, cache_read_tokens, context_limit, compressed, created_by, content_version, total_cost_micros, runtime_ms, deleted, provider_response_id
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@@ -6254,6 +6321,52 @@ func (q *sqlQuerier) UpdateChatLabelsByID(ctx context.Context, arg UpdateChatLab
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return i, err
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}
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const updateChatLastModelConfigByID = `-- name: UpdateChatLastModelConfigByID :one
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UPDATE
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chats
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SET
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-- NOTE: updated_at is intentionally NOT touched here to avoid changing list ordering.
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last_model_config_id = $1::uuid
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WHERE
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id = $2::uuid
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RETURNING
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id, owner_id, workspace_id, title, status, worker_id, started_at, heartbeat_at, created_at, updated_at, parent_chat_id, root_chat_id, last_model_config_id, archived, last_error, mode, mcp_server_ids, labels, build_id, agent_id, pin_order
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`
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type UpdateChatLastModelConfigByIDParams struct {
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LastModelConfigID uuid.UUID `db:"last_model_config_id" json:"last_model_config_id"`
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ID uuid.UUID `db:"id" json:"id"`
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}
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func (q *sqlQuerier) UpdateChatLastModelConfigByID(ctx context.Context, arg UpdateChatLastModelConfigByIDParams) (Chat, error) {
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row := q.db.QueryRowContext(ctx, updateChatLastModelConfigByID, arg.LastModelConfigID, arg.ID)
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var i Chat
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err := row.Scan(
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&i.ID,
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&i.OwnerID,
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&i.WorkspaceID,
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&i.Title,
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&i.Status,
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&i.WorkerID,
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&i.StartedAt,
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&i.HeartbeatAt,
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&i.CreatedAt,
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&i.UpdatedAt,
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&i.ParentChatID,
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&i.RootChatID,
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&i.LastModelConfigID,
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&i.Archived,
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&i.LastError,
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&i.Mode,
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pq.Array(&i.MCPServerIDs),
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&i.Labels,
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&i.BuildID,
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&i.AgentID,
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&i.PinOrder,
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)
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return i, err
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}
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const updateChatMCPServerIDs = `-- name: UpdateChatMCPServerIDs :one
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UPDATE
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chats
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@@ -6479,6 +6592,69 @@ func (q *sqlQuerier) UpdateChatStatus(ctx context.Context, arg UpdateChatStatusP
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return i, err
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}
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const updateChatStatusPreserveUpdatedAt = `-- name: UpdateChatStatusPreserveUpdatedAt :one
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UPDATE
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chats
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SET
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status = $1::chat_status,
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worker_id = $2::uuid,
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started_at = $3::timestamptz,
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heartbeat_at = $4::timestamptz,
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last_error = $5::text,
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updated_at = $6::timestamptz
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WHERE
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id = $7::uuid
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RETURNING
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id, owner_id, workspace_id, title, status, worker_id, started_at, heartbeat_at, created_at, updated_at, parent_chat_id, root_chat_id, last_model_config_id, archived, last_error, mode, mcp_server_ids, labels, build_id, agent_id, pin_order
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`
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type UpdateChatStatusPreserveUpdatedAtParams struct {
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Status ChatStatus `db:"status" json:"status"`
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WorkerID uuid.NullUUID `db:"worker_id" json:"worker_id"`
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StartedAt sql.NullTime `db:"started_at" json:"started_at"`
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HeartbeatAt sql.NullTime `db:"heartbeat_at" json:"heartbeat_at"`
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LastError sql.NullString `db:"last_error" json:"last_error"`
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UpdatedAt time.Time `db:"updated_at" json:"updated_at"`
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ID uuid.UUID `db:"id" json:"id"`
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}
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func (q *sqlQuerier) UpdateChatStatusPreserveUpdatedAt(ctx context.Context, arg UpdateChatStatusPreserveUpdatedAtParams) (Chat, error) {
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row := q.db.QueryRowContext(ctx, updateChatStatusPreserveUpdatedAt,
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arg.Status,
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arg.WorkerID,
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arg.StartedAt,
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arg.HeartbeatAt,
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arg.LastError,
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arg.UpdatedAt,
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arg.ID,
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)
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var i Chat
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err := row.Scan(
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&i.ID,
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&i.OwnerID,
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&i.WorkspaceID,
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&i.Title,
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&i.Status,
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&i.WorkerID,
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&i.StartedAt,
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&i.HeartbeatAt,
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&i.CreatedAt,
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&i.UpdatedAt,
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&i.ParentChatID,
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&i.RootChatID,
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&i.LastModelConfigID,
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&i.Archived,
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&i.LastError,
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&i.Mode,
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pq.Array(&i.MCPServerIDs),
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&i.Labels,
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&i.BuildID,
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&i.AgentID,
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&i.PinOrder,
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)
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return i, err
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}
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const updateChatWorkspaceBinding = `-- name: UpdateChatWorkspaceBinding :one
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UPDATE chats SET
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workspace_id = $1::uuid,
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