feat(C90): remodela responsáveis da Atividade em campo único polimórfico

Um campo responsible (staff campaignUser · leadership · stateDeputy) multi-valor substitui responsible/Contact + advisors + leadership; assessor mantém acesso via notação-objeto equals no access; nova migração esquema+dados (advisors/leadership → responsible); busca q da lista título-only; notificação notifica staff do campo. Closes #426
2026-08-08 17:10:48 -03:00 · 2026-08-08 17:10:48 -03:00 · 63642483a4
commit 63642483a4
parent 8b2bc51aa5
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--- a/docs/CHANGELOG-AGENTS.md
+++ b/docs/CHANGELOG-AGENTS.md
@ -8,6 +8,8 @@ Conteúdo movido do `AGENTS.md` em 2026-07-30 (fatiamento do paradigma de agente

 **Recently resolved (2026-08-08):** **B168** (Issue #422) — desfeito o **encadeamento automático** das ações rápidas do wizard (B98 era o precedente que este item inverte; evidência de campo: o coordenador rejeitou a tela avançando sozinha). Ao salvar **qualquer** ação de ajuste (votos, tendência, atualização, liderança), o usuário volta à origem (`from` allowlist B110 mantido; Início sem `from`) com toast — nunca avança para outro wizard. Removidos a fila/pipeline `wizardActionChain.ts` (fundido `wizardReturnHref` + `wizardPreviousHref` só com passos internos em `campaignActionRoutes.ts`), o param `entry`, os skip resolvers/`Pular` (`WizardSkipTrailing`/`WizardTrendSkipTrailing` deletados, chrome mobile sempre “X”) e o prefill de nota sem produtor (`notePrefill`/`voteFrom`/`voteTo`). Tendência: pós-save o RSC refresha com status já aplicado e o **client** é o único dono da navegação (toast + retorno) — o redirect servidor engolia o toast (B97 corrigido no caminho). Liderança: botão flutuante pós-save passou de “Continuar” (avançava) para **“Concluir”** (retorna à origem). Sem migration. Intenção [`desfazer-encadeamento-acoes-wizard.md`](plans/desfazer-encadeamento-acoes-wizard.md); impl [`desfazer-encadeamento-acoes-wizard-impl.md`](plans/desfazer-encadeamento-acoes-wizard-impl.md).

+**Recently resolved (2026-08-08):** **C90** (Issue #426) — os três campos de responsável da Atividade (`responsible` Contact, `advisors` staff, `leadership`) viraram **um campo `responsible` polimórfico multi-valor** (`campaignUser` staff · `leadership` · `stateDeputy`), removendo os dois antigos do modelo/UI; assessor continua vendo/curando o compromisso onde está listado como responsável via notação-objeto `equals {relationTo,value}` no access (provado por int test com `payload.find` real); seletor `ResponsibleMultiSelect` (chips tipados) + busca única `searchActivityResponsibleOptions` (escopo de leitura do ator, liderança engajada) — reusado pelo C91 na agenda; migração esquema+dados (advisors/leadership → `responsible`, Contact antigo descartado, contagem via NOTICE; SQL de reconciliação ensaiado contra cenário misto); busca `q` da lista virou título-only (regressão assumida no gate); notificação de atenção notifica só staff em `responsible`. Intenção [`remodelar-responsaveis-atividade.md`](docs/plans/remodelar-responsaveis-atividade.md); impl [`remodelar-responsaveis-atividade-impl.md`](docs/plans/remodelar-responsaveis-atividade-impl.md).
+
 **Recently resolved (2026-08-08):** **worktree next provisiona ambiente isolado por worktree** — agentes em paralelo não disputam mais porta 3000, o `teqo_test` compartilhado nem um segundo Postgres no 5432: `pnpm worktree next [--go] [--no-migrate]` deriva deterministicamente slot do código da Issue (C15→15; hash sem dígitos; bump em colisão entre worktrees vivos) → dev server `3100+slot`, bancos `teqo_wt<slot>`/`teqo_wt<slot>_test` criados no container compartilhado com migrations aplicadas; escreve `.env.local` + `.env.test.local` (gitignored, marcador gerado; envs manuais nunca sobrescritos) e copia PAYLOAD*SECRET/Blob/VAPID do main. `kill` dropa os bancos gerados (best-effort, WITH FORCE). Suites leem `.env.test.local` depois de `.env.test` (vitest.setup/playwright/db-doctor/gate-ci espelham o layering); `assertTestDatabase` aceita `teqo_test` ou `teqo*<worktree>\_test`em localhost só (fail-closed preservado).`db:start`/`db:stop`fixam`-p teqo`(um container, qualquer diretório); max_connections 200→400. Sem Docker (Cursor Cloud): degrada ao compartilhado com aviso. Derivação pura`scripts/lib/worktree-env.mjs` (unit-tested).

 **Recently resolved (2026-08-08):** **B164** (Issue #400) — barra de navegação inferior fixa no mobile para staff, com 5 itens (Início, Municípios, Atualizações, Agenda, Mais) e drawer overflow "Mais" para destinos secundários (Quadro, Territórios, Organizações, Líderanças, etc.) + rodapé Perfil/Sair. Leader e desktop mantêm sidebar-only (lockdown intacto). `CampaignContentScroll` e `CampaignQuickActionsHost` ajustados para safe-area e z-index do FAB sobre a barra. `/campanha/atualizacoes` é placeholder honesto (âncora C89). Impl [`barra-navegacao-inferior-mobile-impl.md`](docs/plans/barra-navegacao-inferior-mobile-impl.md).
--- a/docs/plans/remodelar-responsaveis-atividade-impl.md
+++ b/docs/plans/remodelar-responsaveis-atividade-impl.md
@ -0,0 +1,135 @@
+# Impl: C90 — Remodelar responsáveis da Atividade — campo único polimórfico multi-valor
+
+Status: em execução
+Atualizado em: 2026-08-08
+Issue: #426
+Intenção: docs/plans/remodelar-responsaveis-atividade.md
+Appetite restante: herdado (~1–1,5 dia eng). Sem cortes no appetite — a mudança é serializada (schema→server→UI→gates) e não cria entidade nova.
+
+## Leitura da intenção
+
+- **Outcome:** uma Atividade tem UM campo `responsible` polimórfico multi-valor (staff `campaignUser` nas funções assessor/candidato/coordenador, `leadership`, `stateDeputy`); `advisors` e `leadership` saem do modelo e da UI; a informação migra para `responsible`; o assessor mantém ver/editar quando está listado como responsável (mesmo direito que `advisors` dava).
+- **O que NÃO negociar:** campo único (não 3 campos); sem segundo cadastro de pessoa (seletor só escolhe existentes); sem papel novo; assessor continua vendo/curando o compromisso em que está listado; `responsible` opcional (obrigatório só título/município); `tasks[].responsible` (Contact) NÃO muda.
+- **O que reavaliar (engenharia):**
+  1. A leg do assessor em `canReadActivity` hoje é `advisors: { contains: user.id }`. Campo polimórfico hasMany **não aceita** `contains` escalar (o query-builder do adapter não suporta where por id escalar em relação polimórfica hasMany — só a notação-objeto `{ relationTo, value }` com `equals`). → decisão de acesso abaixo.
+  2. A busca `q` da lista usa `'responsible.name'`, impossível de manter em polimórfico → vira título-only (perda pequena, sinalizada no gate).
+  3. `notifyActivityNeedsAttention` usava `doc.advisors` → passa a filtrar entradas `campaignUser` de `responsible`.
+  4. O `responsible` antigo é um **Contact** — Contact não é tipo válido no novo union. O valor antigo não tem destino; decisão de dados no gate.
+
+## Abordagem recomendada
+
+```mermaid
+flowchart LR
+  A[Activity.ts: responsible polimórfico hasMany<br/>relationTo campaignUser|leadership|stateDeputy<br/>remove advisors + leadership] --> B[validateActivityResponsibles hook<br/>+ auto-include assessor no create]
+  B --> C[access/activities.ts: leg assessor =<br/>responsible equals {relationTo campaignUser, value me}]
+  C --> D[lib/schemas + activityFormData: responsiblesJson<br/>bounded, shape {relationTo, value}]
+  D --> E[action searchActivityResponsibleOptions 3 catálogos<br/>+ ResponsibleMultiSelect novo componente]
+  E --> F[ActivityForm/OverviewTab/ActivityCard/viewModels<br/>chips tipados]
+  A --> G[migration: activity_rels +leadership_id+statedeputy_id<br/>drop activity.responsible_id/leadership_id<br/>migra advisors→responsible, leadership→responsible]
+```
+
+**Opções consideradas:** A) campo polimórfico puro (payload `relationTo: [...]`, `hasMany`) como a intenção manda | B) campo polimórfico + coluna derivada escondida `assignedStaffIds` para o acesso do assessor | C) manter sessões separadas e só juntar na UI.
+**Recomendação: A** — é o modelo de domínio da intenção, sem twin de dados; o acesso por notação-objeto `equals {relationTo,value}` resolve o escopo do assessor dentro do próprio campo (provado por teste int que roda a query real).
+**Rejeitadas:** B porque duplica o dado do `responsible` num campo derivado (viola "edit the owner, don't twin" e drift não é barato); C porque não atende o aceite de produto (campo único).
+
+### Decisões de engenharia (forma obrigatória)
+
+**D1 — Leg do assessor no read/update:**
+
+- Opções: A) `{ responsible: { equals: { relationTo: 'campaignUser', value: id } } }` (notação-objeto; o único operador aceito pelo adapter em polimórfico é `equals`) | B) `{ responsible: { contains: id } }` escalar | C) consulta dupla (município scope + lookup pós-fetch).
+- Recomendação: A — expressivo, suportado (verificado no fonte do `@payloadcms/drizzle`, `sanitizeQueryValue`/`getTableColumnFromPath`), PROVADO por teste int que roda `payload.find` como o assessor.
+- Rejeitadas: B — o query-builder não tem caminho para id escalar em relação polimórfica hasMany (cairia em recursão sem tabela resolvida); C — fere a semântica de `Access` que precisa devolver `Where`.
+
+**D2 — Edição do `responsible` (field access):**
+
+- Opções: A) staff pode gravar o campo (mesmo esboço do `advisors` que era coordinator-only some) | B) manter gate coordinator-only | C) só hook de validate.
+- Recomendação: A — o produto diz "staff cria; assessor edita o que administra + o que lhe é imputado" sem gate de coordenador; o row access (`canUpdateActivity`) já restringe o assessor ao escopo. `canCreateActivityAdvisors`/`canManageActivityAdvisors` saem; entra `canSetActivityResponsible` = staff.
+- Rejeitadas: B pois `advisors` coordinator-only era uma UI conveniente do Admin, não um requisito; o assessor precisa conseguir atribuir/editar responsáveis no que administra. C sozinho não protege o Admin.
+
+**D3 — Busca `q` da lista de Atividades:**
+
+- Opções: A) título-only | B) manter `responsible.name` (quebra em polimórfico) | C) resolver nomes pós-fetch.
+- Recomendação: A (título-only) — a query aninhada `responsible.name` em polimórfico não é suportada; pós-fetch é caro e proporcional a nada. **Sinalizado no gate** (mudança visível: buscar por nome de responsável na lista deixa de casar).
+- Rejeitadas: B (runtime error), C (overhead injustificável).
+
+**D4 — Dados antigos na migração:**
+
+- Opções: A) `advisors`→`responsible` (campaignUser), `leadership`→`responsible` (leadership), Contact antigo em `responsible_id` **descartado** (sem tipo válido no union, sem destino confiável) | B) tentar mapear Contact antigo para campaignUser/leadership por heurística | C) manter Contact como 4º tipo.
+- Recomendação: A — fiel à intenção (o union é staff/leadership/dobradinha); Contact é exatamente o campo que o produto quer eliminar (o "Contact avulso"). **Decisão de dados confirmada no gate** antes de executar.
+- Rejeitadas: B (heurística especulativa, risco de atribuir responsável errado); C (viola o aceite — Contact não é papel da campanha).
+
+**D5 — Componente do seletor:**
+
+- Opções: A) novo `ResponsibleMultiSelect` (chips + Command dialog + busca polimórfica agrupada por tipo) | B) estender `AsyncSearchCombobox` para multi+polimórfico | C) três seletores.
+- Recomendação: A — o picker polimórfico multi-tipo (resultado tipado, chip tipado) é uma forma nova que nenhum primitivo expressa; `AsyncSearchCombobox` é single-value e usado em vários lugares (município/liderança); mudá-lo arrisca os outros call sites. Colocado em `campaign/shared/` para o C91 o reusar no overlay da agenda.
+- Rejeitadas: B (twin-arriscado num primitivo compartilhado), C (anti-aceite).
+
+### Componentes / mudanças
+
+- **`Activity.ts`** (`src/collections/Activity.ts`): `responsible` → relationship polimórfico hasMany `relationTo: ['campaignUser', 'leadership', 'stateDeputy']`, `hasMany: true`, `index: true`, `filterOptions` por collection (`campaignUser`: `eligibleCampaignStaffWhere`), `admin.label` "Responsáveis". Remove `advisors` e `leadership`. Hook `validateActivityAdvisors` → `validateActivityResponsibles` (valida entradas: staff elegível p/ `campaignUser`, existência p/ `leadership`/`stateDeputy`, cap). `deriveActivityFields`: auto-include `[{relationTo:'campaignUser', value: user.id}]` no create do assessor; `activityStaffFieldSnapshot` re-expresso sobre `responsible`.
+- **`src/utilities/access/activities.ts`**: `canReadActivity`/`canUpdateActivity` leg assessor = `{ or: [{ responsible: { equals: { relationTo: 'campaignUser', value: id } } }, advisorMunicipalityScopeWhere('municipality', ids)] }`. Remove `canCreateActivityAdvisors`/`canManageActivityAdvisors`; adiciona `canSetActivityResponsible` (staff). Re-export em `campaignAccess.ts`.
+- **`src/lib/schemas/activity.ts`**: `responsible: z.array(activityResponsibleSchema).max(20).optional()` (shape `{ relationTo: enum, value: positiveRelationshipId }`); remove `advisors`/`leadership` (create/update). `tasks[].responsible` intacto.
+- **`src/utilities/activityFormData.ts`**: parseia `responsiblesJson` (bounded JSON, precedente `tagsJson`), replace de `advisors`/`leadership`/`responsible`.
+- **`src/app/(campaign)/campanha/actions/activity.ts`**: create/update recebem `responsible` polimórfico; update sempre envia o array (limpar = `[]`); ajusta comentário de stripping de null (endAt/responsible mantêm null-anulável? → `responsible` agora é array, muda o strip).
+- **`src/utilities/activityViewModels.ts`**: `ActivityFormViewModel` → `responsibles: Array<{ relationTo, id, name, typeLabel }>`; `ActivityDetailViewModel` → `responsibles` (chips tipados) no lugar de `advisors`+`responsibleName`; `ActivityListViewModel` → `responsibles` + resumo p/ card. Selects ajustados (depth 1 para popular).
+- **Search actions** (`src/app/(campaign)/campanha/(app)/atividades/contactSearchActions.ts` + `src/utilities/activityLeadershipOptions.ts`): novo `searchActivityResponsibleOptions(query)` (server action) que busca os 3 catálogos em paralelo com `overrideAccess: false` (escopo de leitura do ator), agrupando por tipo com rótulo; mantém filtro `supportStatus: 'engajado'` p/ leadership (comportamento atual — sinalizado). `searchActivityContactOptions` permanece (tarefas). Remove `searchActivityLeadershipOptionsAction` se ficar órfão (knip).
+- **`src/components/campaign/shared/ResponsibleMultiSelect.tsx`** (novo, client): chips removíveis (padrão `RelationMultiSelect`) + trigger + `Command` dialog com grupos por tipo; submete `responsiblesJson`.
+- **`src/components/campaign/activity/ActivityForm.tsx`**: card "Pessoas e organizações" → campos "Responsáveis" (novo seletor) + "Organizações apoiadoras"; some grupo de assessores e combobox de liderança; `searchContacts` permanece p/ tarefas; props `advisorOptions`/`canManageAdvisors`/`searchLeaderships` saem; entra `searchResponsibles`.
+- **`nova`/`editar` pages**: drop `advisorOptions`/`canManageAdvisors`; passam `searchResponsibles`.
+- **`ActivityOverviewTab.tsx`**: "Equipe e organizações" → "Responsáveis" (lista de chips tipados); remove linha "Responsável" do card Detalhes.
+- **`ActivityCard.tsx`**: "Resp: X" → chips de responsáveis (até 2 + "+N") com tipo.
+- **`src/utilities/notification/notificationEvents.ts`**: `notifyActivityNeedsAttention` recipients = entradas `campaignUser` de `responsible` (filtra `relationTo`).
+- **`src/utilities/activityUi.ts`**: `buildActivityListWhere` — `q` vira título-only (remove `'responsible.name'`).
+- **Migration:** `pnpm migrate:create remodel_activity_responsible` → schema diff (activity_rels +leadership_id/state_deputy_id; activity −responsible_id/−leadership_id com índices/FKs) + data step: `UPDATE activity_rels SET path='responsible' WHERE path='advisors'`; `INSERT … leadership_id` dos antigos `activity.leadership_id`; reorder por parent; dropar `responsible_id` antiga. Decisão D4 no gate.
+
+### Dados → forma
+
+Não aplica (intenção `Dados: N/A`). O "chips tipados por responsável" é a resposta à questão em aberto da intenção (recomendação B) — sem métrica/série/mapa.
+
+## Fases verificáveis
+
+1. **Tracer/schema+server:** Migration + `Activity.ts` + access + schemas/parse + actions + notificação. Rodar `pnpm migrate:create`, `pnpm migrate`, `generate:types`. Atualizar int spec (inclui teste real do Where do assessor via `payload.find` e teste de auto-include + teste de responsable protegendo contra staff não-elegível).
+2. **UI:** `ResponsibleMultiSelect` + form + overview + card + list search. Impeccable B (shape→craft→critique); shells/Command existentes; tokens `data-theme='campaign'`.
+3. **Gates:** `pnpm gate:fast` na iteração; entrega com `pnpm push`. `knip` (remover órfãos de access/leader options); `formatação`; `check:cycles`.
+
+## Rabbit holes / Não escopo (engenharia)
+
+- **"Twin" de campo derivado para acesso** — rejeitado (D1 usa notação-objeto, sem coluna extra).
+- Consulta de `responsible` por nome em listas/filtros — título-only; não construir busca nome polimórfica (defer com gatilho: "voltar busca por responsável quando o produto pedir").
+- Estender `AsyncSearchCombobox`/`RelationMultiSelect` para multi-polimórfico — novo componente, não mutação de primitivo compartilhado.
+- Admin UI do `responsible`: `filterOptions` por collection só para conveniência do `/admin`; sem UI custom.
+- Sem mudança em `tasks[].responsible`, `resultRecordedBy`, `createdBy`, `updates[].author`, do giro, e2e existente de agenda (não toca responsáveis).
+
+## Riscos e mitigação
+
+- **Notação-objeto `equals` em hasMany polimórfico não casar como esperado** → mitigação: teste int cria atividade com assessor em `responsible` e roda `payload.find`/`canReadActivity` como esse assessor; se falhar, implantar D1-B/CD como fallback no mesmo esforço.
+- **Esquema de dados polimórfico em produção** (joins `_rels`, ordens) → migração idempotente por `path`/`parent`, NOTICE de rows afetadas, revisão do SQL antes do deploy (padrão remodel já aplicado em prod).
+- **Perda do `responsible` (Contact) antigo** → decisão explícita no gate (D4) antes de executar.
+- **Campo `responsible` com `same name` após mudança de tipo** no diff (era column, vira rels) → conferir o SQL gerado e ajustar manualmente se o diff dropar/criar errado.
+
+## Aceite de engenharia
+
+- [ ] Aceite de produto da intenção coberto (campo único polimórfico multi-valor; `advisors`/`leadership` fora; assessor mantém direito via `responsible`)
+- [ ] Invariantes AGENTS/engineering-standards (transações, access `overrideAccess:false` onde actor, sem novo cadastro, sem Consent novo, identificadores inglês/copy pt-BR)
+- [ ] Testes de domínio: int spec (acesso assessor por `responsible` provado via query real; auto-include; validação de staff; data migration verificada em `teqo_test`)
+
+## Já resolvido no simplify (não reabrir)
+
+- Parser polimórfico `{relationTo, value}` centralizado em `parseActivityResponsibleEntries` (`lib/schemas/activity.ts`) — Activity.ts, notificationEvents e viewModels consomem o mesmo.
+- Seleção do `ResponsibleMultiSelect` inicial-only (bug de wipe no create após erro de submit).
+- Existência de `leadership`/`stateDeputy` validada como verdade admin (com `// bypass:` justificado) — assessor responsável re-salva lista intacta mesmo com liderança fora do portfólio (int test cobre).
+- a11y do seletor (`aria-invalid`/`aria-describedby` + `FieldError` com id); gate morto `atCapacity && selected.length > 0` colapsado.
+
+## Adiado com gatilho (não registrar epic agora)
+
+- **S1 — extrair `useDebouncedAsyncSearch(query, isReady, search)`** do efeito clonado entre `AsyncSearchCombobox` e `ResponsibleMultiSelect` (debounce 250ms + requestId + loading/failed). **Gatilho:** terceiro consumidor de busca assíncrona client, ou refactor do próprio `AsyncSearchCombobox`.
+- **S2 — unificar nome-fallback de responsável não-populado** (`Responsável #id` / `Equipe #N` / `Liderança #N`). **Gatilho:** se algum fluxo depender do rótulo exato.
+- **S3 — UX em capacidade máxima** (trigger disabled; remoção só via chips). **Gatilho:** feedback da mesa.
+
+## Explicitamente fora (skips dos revisores + descartes deste triage)
+
+- Estender `AsyncSearchCombobox`/`RelationMultiSelect` para multi-polimórfico (novo componente é a forma certa).
+- Busca por nome de responsável na lista (`q`) — título-only aceito no gate (consulta aninhada em relação polimórfica não é suportada).
+- `tasks[].responsible` (Contact), resultado, giro, agenda — intactos.
+
+Self-score decision-quality: 5/5 (decisões caras com rejeitadas; cabe no appetite; rabbit holes nomeados; reusa loaders/Command/shells; intenção preservada).
--- a/src/app/(campaign)/campanha/(app)/atividades/[slug]/ActivityOverviewTab.tsx
+++ b/src/app/(campaign)/campanha/(app)/atividades/[slug]/ActivityOverviewTab.tsx
@ -71,10 +71,6 @@ export const ActivityOverviewTab = ({
              <dt className="text-muted-foreground">Término</dt>
              <dd>{view.endAt ? formatBahiaDateTimeLabel(view.endAt) : '—'}</dd>
            </div>
-            <div>
-              <dt className="text-muted-foreground">Responsável</dt>
-              <dd>{view.responsibleName ?? 'Não definido'}</dd>
-            </div>
            <div className="sm:col-span-2">
              <dt className="text-muted-foreground">Tags</dt>
              <dd className="flex flex-wrap gap-1 pt-1">
@ -97,15 +93,20 @@ export const ActivityOverviewTab = ({
        </CardHeader>
        <CardContent className="flex flex-col gap-3 text-sm">
          <div>
-            <p className="text-muted-foreground">Assessores responsáveis</p>
-            {view.advisors.length ? (
-              <ul role="list" className="flex flex-col gap-1">
-                {view.advisors.map((advisor) => (
-                  <li key={advisor.id}>{advisor.name}</li>
+            <p className="text-muted-foreground">Responsáveis</p>
+            {view.responsibles.length ? (
+              <ul role="list" className="flex flex-wrap gap-1.5 pt-1">
+                {view.responsibles.map((responsible) => (
+                  <li key={`${responsible.relationTo}:${responsible.id}`}>
+                    <Badge variant="outline" className="gap-1.5">
+                      <span>{responsible.name}</span>
+                      <span className="text-muted-foreground">{responsible.typeLabel}</span>
+                    </Badge>
+                  </li>
                ))}
              </ul>
            ) : (
-              <p className="text-muted-foreground">Nenhum assessor vinculado.</p>
+              <p className="text-muted-foreground">Nenhum responsável definido.</p>
            )}
          </div>
          <div>
--- a/src/app/(campaign)/campanha/(app)/atividades/[slug]/editar/page.tsx
+++ b/src/app/(campaign)/campanha/(app)/atividades/[slug]/editar/page.tsx
@ -4,7 +4,7 @@ import { getPayload } from 'payload'

 import {
  searchActivityContactOptions,
-  searchActivityLeadershipOptionsAction,
+  searchActivityResponsibleOptionsAction,
 } from '@/app/(campaign)/campanha/(app)/atividades/contactSearchActions'
 import { updateActivityFormAction } from '@/app/(campaign)/campanha/(app)/atividades/formActions'
 import { ActivityForm } from '@/components/campaign/activity/ActivityForm'
@ -16,7 +16,6 @@ import {
  loadMunicipalityOptions,
  loadOrganizationOptions,
 } from '@/utilities/campaignRelationOptions'
-import { getEligibleAdvisorOptions } from '@/utilities/municipality/municipalityViewModels'

 type EditActivityPageProps = {
  params: Promise<{ slug: string }>
@ -47,15 +46,13 @@ export default async function EditActivityPage({ params }: EditActivityPageProps
  ])
  if (!slug) notFound()

-  const canManageAdvisors = user.role === 'coordinator'
-  const [view, municipalityOptions, organizationOptions, advisorOptions] = await Promise.all([
+  const [view, municipalityOptions, organizationOptions] = await Promise.all([
    getActivityEditPageData(payload, user, slug).catch((error) => {
      if (error instanceof ActivityNotFoundError) notFound()
      throw error
    }),
    loadMunicipalityOptions(payload, user),
    loadOrganizationOptions(payload, user),
-    canManageAdvisors ? getEligibleAdvisorOptions(payload, user) : Promise.resolve([]),
  ])

  return (
@ -66,11 +63,9 @@ export default async function EditActivityPage({ params }: EditActivityPageProps
        activity={view}
        municipalityOptions={municipalityOptions}
        organizationOptions={organizationOptions}
-        advisorOptions={advisorOptions}
-        canManageAdvisors={canManageAdvisors}
        submitLabel="Salvar alterações"
        searchContacts={searchActivityContactOptions}
-        searchLeaderships={searchActivityLeadershipOptionsAction}
+        searchResponsibles={searchActivityResponsibleOptionsAction}
      />
    </div>
  )
--- a/src/app/(campaign)/campanha/(app)/atividades/contactSearchActions.ts
+++ b/src/app/(campaign)/campanha/(app)/atividades/contactSearchActions.ts
@ -6,9 +6,9 @@ import { getPayload } from 'payload'
 import type { ContactComboboxOption } from '@/components/campaign/shared/ContactCombobox'
 import { isContactSearchQueryReady, normalizeContactSearchQuery } from '@/lib/contactSearchQuery'
 import {
-  searchActivityLeadershipOptions,
-  type ActivityLeadershipOption,
-} from '@/utilities/activityLeadershipOptions'
+  searchActivityResponsibleOptions,
+  type ActivityResponsibleSearchOption,
+} from '@/utilities/activityResponsibleSearch'
 import { getCampaignUser } from '@/utilities/campaignAuth'
 import { CAMPAIGN_AUTH_REQUIRED_MESSAGE } from '@/utilities/campaignFormActionError'

@ -42,11 +42,11 @@ export const searchActivityContactOptions = async (
  return result.docs.map(({ id, name, phone }) => ({ id, name, phone: phone ?? null }))
 }

-export const searchActivityLeadershipOptionsAction = async (
+export const searchActivityResponsibleOptionsAction = async (
  query: string,
-): Promise<ActivityLeadershipOption[]> => {
+): Promise<ActivityResponsibleSearchOption[]> => {
  const [payload, user] = await Promise.all([getPayload({ config }), getCampaignUser()])
  if (!user) throw new Error(CAMPAIGN_AUTH_REQUIRED_MESSAGE)

-  return searchActivityLeadershipOptions(payload, user, query)
+  return searchActivityResponsibleOptions(payload, user, query)
 }
--- a/src/app/(campaign)/campanha/(app)/atividades/nova/page.tsx
+++ b/src/app/(campaign)/campanha/(app)/atividades/nova/page.tsx
@ -3,7 +3,7 @@ import { getPayload } from 'payload'

 import {
  searchActivityContactOptions,
-  searchActivityLeadershipOptionsAction,
+  searchActivityResponsibleOptionsAction,
 } from '@/app/(campaign)/campanha/(app)/atividades/contactSearchActions'
 import { createActivityFormAction } from '@/app/(campaign)/campanha/(app)/atividades/formActions'
 import { ActivityForm } from '@/components/campaign/activity/ActivityForm'
@ -15,7 +15,6 @@ import {
  loadMunicipalityOptions,
  loadOrganizationOptions,
 } from '@/utilities/campaignRelationOptions'
-import { getEligibleAdvisorOptions } from '@/utilities/municipality/municipalityViewModels'

 export const metadata = campaignPageMetadataFromCatalog('atividadesNova')

@ -30,11 +29,9 @@ export default async function NewActivityPage({ searchParams }: NewActivityPageP
    getPayload({ config }),
  ])

-  const canManageAdvisors = user.role === 'coordinator'
-  const [municipalityOptions, organizationOptions, advisorOptions, knownTags] = await Promise.all([
+  const [municipalityOptions, organizationOptions, knownTags] = await Promise.all([
    loadMunicipalityOptions(payload, user),
    loadOrganizationOptions(payload, user),
-    canManageAdvisors ? getEligibleAdvisorOptions(payload, user) : Promise.resolve([]),
    loadAccessibleActivityTags(payload, user),
  ])
  const accessibleMunicipalityIDs = new Set(municipalityOptions.map((option) => option.id))
@ -52,14 +49,12 @@ export default async function NewActivityPage({ searchParams }: NewActivityPageP
        action={createActivityFormAction}
        municipalityOptions={municipalityOptions}
        organizationOptions={organizationOptions}
-        advisorOptions={advisorOptions}
-        canManageAdvisors={canManageAdvisors}
        initialValues={initialValues}
        cancelHref={cancelHref}
        knownTags={knownTags}
        submitLabel="Criar atividade"
        searchContacts={searchActivityContactOptions}
-        searchLeaderships={searchActivityLeadershipOptionsAction}
+        searchResponsibles={searchActivityResponsibleOptionsAction}
      />
    </div>
  )
--- a/src/app/(campaign)/campanha/actions/activity.ts
+++ b/src/app/(campaign)/campanha/actions/activity.ts
@ -232,7 +232,7 @@ const updateActivityRecord = async (
  const { id, ...rawData } = activityUpdateSchema.parse(input)
  // Payload date fields accept string | undefined, not null.
  // Strip nulls only for required-ish fields; keep null for optional
-  // fields (endAt, responsible, leadership) so clearing them works.
+  // fields (endAt) so clearing them works.
  const data = {
    ...Object.fromEntries(
      Object.entries(rawData).filter(([key, value]) => {
--- a/src/collections/Activity.ts
+++ b/src/collections/Activity.ts
@ -8,8 +8,10 @@ import { APIError } from 'payload'
 import { relationshipId } from '@/lib/relationship'
 import {
  ACTIVITY_DEPUTY_RESCHEDULE_FORBIDDEN_MESSAGE,
-  activityStatusLabels,
  activityStatuses,
+  activityStatusLabels,
+  MAX_ACTIVITY_RESPONSIBLES,
+  parseActivityResponsibleEntries,
 } from '@/lib/schemas/activity'
 import { slugify } from '@/lib/slug'
 import { trimmedText } from '@/lib/text'
@ -17,10 +19,9 @@ import { getFreshCampaignUser } from '@/utilities/access/shared'
 import {
  canCampaignUserRescheduleActivity,
  canCreateActivity,
-  canCreateActivityAdvisors,
  canDeleteActivity,
-  canManageActivityAdvisors,
  canReadActivity,
+  canSetActivityResponsible,
  canSetActivityStatus,
  canSetActivitySystemField,
  canUpdateActivity,
@ -51,9 +52,11 @@ const activityStaffFieldSnapshot = (doc: Record<string, unknown>) => ({
  locality: trimmedText(doc.locality),
  deputyPresent: Boolean(doc.deputyPresent),
  organizations: relationshipIds(doc.organizations),
-  advisors: relationshipIds(doc.advisors),
-  responsible: relationshipId(doc.responsible),
-  leadership: relationshipId(doc.leadership),
+  responsible: JSON.stringify(
+    parseActivityResponsibleEntries(doc.responsible)
+      .map(({ relationTo, value }) => `${relationTo}:${value}`)
+      .sort(),
+  ),
  resultSummary: trimmedText(doc.resultSummary),
  resultMedia: relationshipIds(doc.resultMedia),
 })
@ -110,33 +113,101 @@ const validateActivitySchedule: CollectionBeforeValidateHook = ({
  return data
 }

-const validateActivityAdvisors: CollectionBeforeValidateHook = async ({ data, req, context }) => {
+/**
+ * C90 — every `responsible` entry must point at a real, allowed entity:
+ * staff `campaignUser` (assessor/candidato/coordenador) must stay eligible,
+ * and `leadership`/`stateDeputy` ids must exist. Existence is verified as
+ * admin truth so a staff member responsible for a commitment can always
+ * re-save it as-is — the form's selector scopes the choice to the actor's
+ * portfolio, not the save validation.
+ */
+const validateActivityResponsibles: CollectionBeforeValidateHook = async ({
+  data,
+  req,
+  context,
+}) => {
  if (isActivityMutationShortcut(context)) return data
  if (!data) return data
-  if (data.advisors === undefined) return data
+  if (data.responsible === undefined) return data

-  const advisorIDs = [...new Set(relationshipIds(data.advisors))]
-  if (advisorIDs.length === 0) return data
-
-  const eligibleAdvisors = await req.payload.find({
-    collection: 'campaignUser',
-    depth: 0,
-    pagination: false,
-    where: {
-      and: [{ id: { in: advisorIDs } }, eligibleCampaignStaffWhere],
-    },
-    select: { name: true },
-    overrideAccess: true,
-    req,
-  })
-
-  if (eligibleAdvisors.docs.length !== advisorIDs.length) {
+  const entries = parseActivityResponsibleEntries(data.responsible)
+  if (entries.length === 0) return data
+  if (entries.length > MAX_ACTIVITY_RESPONSIBLES) {
    throw new APIError(
-      'Cada responsável deve ter papel de Coordenador Geral, Assessor ou Candidato.',
+      `Informe no máximo ${MAX_ACTIVITY_RESPONSIBLES} responsáveis pelo compromisso.`,
      400,
    )
  }

+  const staffIDs = [
+    ...new Set(
+      entries.filter((entry) => entry.relationTo === 'campaignUser').map((entry) => entry.value),
+    ),
+  ]
+  const leadershipIDs = [
+    ...new Set(
+      entries.filter((entry) => entry.relationTo === 'leadership').map((entry) => entry.value),
+    ),
+  ]
+  const deputyIDs = [
+    ...new Set(
+      entries.filter((entry) => entry.relationTo === 'stateDeputy').map((entry) => entry.value),
+    ),
+  ]
+
+  if (staffIDs.length > 0) {
+    // bypass: eligibility is an admin truth — row access would reject
+    // no-user/admin creates and empty requests; the where filter is the gate.
+    const eligibleStaff = await req.payload.find({
+      collection: 'campaignUser',
+      depth: 0,
+      pagination: false,
+      where: {
+        and: [{ id: { in: staffIDs } }, eligibleCampaignStaffWhere],
+      },
+      select: { name: true },
+      overrideAccess: true,
+      req,
+    })
+    if (eligibleStaff.docs.length !== staffIDs.length) {
+      throw new APIError(
+        'Cada responsável deve ter papel de Coordenador Geral, Assessor ou Candidato.',
+        400,
+      )
+    }
+  }
+
+  if (leadershipIDs.length > 0) {
+    // bypass: existence check only — the actor must be able to save an intact
+    // responsible list even for leaderships outside their read scope.
+    const leaderships = await req.payload.find({
+      collection: 'leadership',
+      depth: 0,
+      pagination: false,
+      where: { id: { in: leadershipIDs } },
+      overrideAccess: true,
+      req,
+    })
+    if (leaderships.docs.length !== leadershipIDs.length) {
+      throw new APIError('Responsável de liderança inválido.', 400)
+    }
+  }
+
+  if (deputyIDs.length > 0) {
+    // bypass: existence check only — see the leadership leg above.
+    const deputies = await req.payload.find({
+      collection: 'stateDeputy',
+      depth: 0,
+      pagination: false,
+      where: { id: { in: deputyIDs } },
+      overrideAccess: true,
+      req,
+    })
+    if (deputies.docs.length !== deputyIDs.length) {
+      throw new APIError('Responsável de dobradinha inválido.', 400)
+    }
+  }
+
  return data
 }

@ -188,9 +259,10 @@ const deriveActivityFields: CollectionBeforeChangeHook = ({
    data.createdBy = req.user.id
    if (
      req.user.role === 'advisor' &&
-      (data.advisors === undefined || (Array.isArray(data.advisors) && data.advisors.length === 0))
+      (data.responsible === undefined ||
+        (Array.isArray(data.responsible) && data.responsible.length === 0))
    ) {
-      data.advisors = [req.user.id]
+      data.responsible = [{ relationTo: 'campaignUser', value: req.user.id }]
    }
  }

@ -305,7 +377,7 @@ export const Activity: CollectionConfig = {
    beforeValidate: [
      setCanonicalActivitySlug,
      validateActivitySchedule,
-      validateActivityAdvisors,
+      validateActivityResponsibles,
      validateDeputyPresentTimeGate,
    ],
    beforeChange: [deriveActivityFields],
@ -427,31 +499,20 @@ export const Activity: CollectionConfig = {
      index: true,
    },
    {
-      name: 'advisors',
+      // C90 — one polymorphic multi-value field replaces the old `advisors`
+      // (staff hasMany), `leadership` (hasOne) and `responsible` (Contact)
+      // fields. Anyone conducting the commitment — staff, a leadership or a
+      // dobradinha — lives here.
+      name: 'responsible',
      type: 'relationship',
-      relationTo: 'campaignUser',
-      label: 'Assessores responsáveis',
+      relationTo: ['campaignUser', 'leadership', 'stateDeputy'],
+      label: 'Responsáveis',
      hasMany: true,
      index: true,
      access: {
-        create: canCreateActivityAdvisors,
-        update: canManageActivityAdvisors,
+        create: canSetActivityResponsible,
+        update: canSetActivityResponsible,
      },
-      filterOptions: eligibleCampaignStaffWhere,
-    },
-    {
-      name: 'responsible',
-      type: 'relationship',
-      relationTo: 'contact',
-      label: 'Responsável',
-      index: true,
-    },
-    {
-      name: 'leadership',
-      type: 'relationship',
-      relationTo: 'leadership',
-      label: 'Liderança',
-      index: true,
    },
    {
      name: 'tasks',
--- a/src/components/campaign/activity/ActivityCard.tsx
+++ b/src/components/campaign/activity/ActivityCard.tsx
@ -39,9 +39,27 @@ export const ActivityCard = ({ activity }: { activity: ActivityListViewModel })
        </div>
      ) : null}
      <div className="flex flex-wrap items-center justify-between gap-2 pt-1 text-sm">
-        <span className="flex items-center gap-1.5 text-muted-foreground">
+        <span className="flex min-w-0 items-center gap-1.5 text-muted-foreground">
          <UserIcon aria-hidden="true" className="size-4 shrink-0" />
-          Resp: {activity.responsibleName ?? 'Não definido'}
+          {activity.responsibles.length ? (
+            <span className="flex min-w-0 flex-wrap gap-1">
+              {activity.responsibles.slice(0, 2).map((responsible) => (
+                <Badge
+                  key={`${responsible.relationTo}:${responsible.id}`}
+                  variant="outline"
+                  className="min-w-0 gap-1"
+                >
+                  <span className="truncate">{responsible.name}</span>
+                  <span className="shrink-0 text-muted-foreground">{responsible.typeLabel}</span>
+                </Badge>
+              ))}
+              {activity.responsibles.length > 2 ? (
+                <Badge variant="outline">+{activity.responsibles.length - 2}</Badge>
+              ) : null}
+            </span>
+          ) : (
+            'Resp: Não definido'
+          )}
        </span>
        {activity.taskProgress.total > 0 ? (
          <span className="font-medium tabular-nums text-muted-foreground">
--- a/src/components/campaign/activity/ActivityForm.tsx
+++ b/src/components/campaign/activity/ActivityForm.tsx
@ -5,40 +5,29 @@ import { useActionState, useState } from 'react'

 import { ActivityDemandFields } from '@/components/campaign/activity/ActivityDemandFields'
 import { ActivityTaskFields } from '@/components/campaign/activity/ActivityTaskFields'
-import { AsyncSearchCombobox } from '@/components/campaign/shared/AsyncSearchCombobox'
-import {
-  ContactCombobox,
-  type ContactComboboxOption,
-} from '@/components/campaign/shared/ContactCombobox'
+import type { ContactComboboxOption } from '@/components/campaign/shared/ContactCombobox'
 import {
  RelationMultiSelect,
  type RelationOption,
 } from '@/components/campaign/shared/RelationMultiSelect'
+import {
+  ResponsibleMultiSelect,
+  type ResponsibleOption,
+} from '@/components/campaign/shared/ResponsibleMultiSelect'
 import { Alert, AlertDescription, AlertTitle } from '@/components/ui/Alert'
 import { Button } from '@/components/ui/button'
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
 import { Checkbox } from '@/components/ui/Checkbox'
-import {
-  Field,
-  FieldDescription,
-  FieldError,
-  FieldGroup,
-  FieldLabel,
-  FieldLegend,
-  FieldSet,
-} from '@/components/ui/field'
+import { Field, FieldDescription, FieldError, FieldGroup, FieldLabel } from '@/components/ui/field'
 import { Input } from '@/components/ui/input'
 import { NativeSelect, NativeSelectOption } from '@/components/ui/native-select'
 import { Spinner } from '@/components/ui/Spinner'
 import { Textarea } from '@/components/ui/textarea'
 import { formatIsoAsBahiaDateTimeInput } from '@/lib/campaignTime'
-import { isContactSearchQueryReady } from '@/lib/contactSearchQuery'
 import { MAX_ACTIVITY_TAG_LENGTH, MAX_ACTIVITY_TAGS } from '@/lib/schemas/activity'
-import type { ActivityLeadershipOption } from '@/utilities/activityLeadershipOptions'
 import type { ActivityCreatePrefill } from '@/utilities/activityUi'
 import type { ActivityFormViewModel } from '@/utilities/activityViewModels'
 import { fieldError } from '@/utilities/campaignFormFields'
-import type { EligibleAdvisorOption } from '@/utilities/municipality/municipalityViewModels'

 export type ActivityFormState = {
  message?: string
@ -55,14 +44,12 @@ type ActivityFormAction = (
 export type ActivityFormFieldsProps = {
  municipalityOptions: RelationOption[]
  organizationOptions: RelationOption[]
-  advisorOptions?: EligibleAdvisorOption[]
-  canManageAdvisors?: boolean
  activity?: ActivityFormViewModel
  initialValues?: ActivityCreatePrefill
  fieldErrors?: Record<string, string[]>
  submittedTitle?: string
  searchContacts: (query: string) => Promise<ContactComboboxOption[]>
-  searchLeaderships: (query: string) => Promise<ActivityLeadershipOption[]>
+  searchResponsibles: (query: string) => Promise<ResponsibleOption[]>
  /** Tags already used across activities, for autocomplete. */
  knownTags?: string[]
 }
@ -152,29 +139,16 @@ const TagInput = ({
 const ActivityFormFields = ({
  municipalityOptions,
  organizationOptions,
-  advisorOptions = [],
-  canManageAdvisors = false,
  activity,
  initialValues,
  fieldErrors = {},
  submittedTitle,
  searchContacts,
-  searchLeaderships,
+  searchResponsibles,
  knownTags = [],
 }: ActivityFormFieldsProps) => {
  const errorFor = (name: string) => fieldError(fieldErrors, name)
-  const [responsible, setResponsible] = useState<ContactComboboxOption | null>(
-    activity?.responsible
-      ? {
-          id: activity.responsible.id,
-          name: activity.responsible.name,
-          phone: activity.responsible.phone,
-        }
-      : null,
-  )
-  const [leadership, setLeadership] = useState<ActivityLeadershipOption | null>(
-    activity?.leadership ? { id: activity.leadership.id, label: activity.leadership.label } : null,
-  )
+  const initialResponsibles = activity?.responsibles ?? []
  const initialStartAt = activity?.startAt ?? initialValues?.startAt
  const initialEndAt = activity?.endAt ?? initialValues?.endAt
  const initialMunicipalityId = activity?.municipalityId ?? initialValues?.municipalityId
@ -336,41 +310,14 @@ const ActivityFormFields = ({
        </CardHeader>
        <CardContent>
          <FieldGroup>
-            <Field data-invalid={Boolean(errorFor('responsible'))}>
-              <FieldLabel>Responsável</FieldLabel>
-              <ContactCombobox
-                name="responsible"
-                label="Responsável pela atividade"
-                current={responsible}
-                search={searchContacts}
-                onChange={setResponsible}
-              />
-              {errorFor('responsible') ? (
-                <FieldError id="responsible-error">{errorFor('responsible')}</FieldError>
-              ) : null}
-            </Field>
-
-            <Field data-invalid={Boolean(errorFor('leadership'))}>
-              <FieldLabel>Liderança vinculada</FieldLabel>
-              <AsyncSearchCombobox
-                name="leadership"
-                label="Liderança vinculada"
-                value={leadership}
-                emptyOptionLabel="Nenhuma"
-                dialogDescription="Busque lideranças engajadas por nome ou celular."
-                isQueryReady={isContactSearchQueryReady}
-                queryTooShortMessage="Digite ao menos dois caracteres para buscar."
-                search={searchLeaderships}
-                onChange={setLeadership}
-              />
-              <FieldDescription>
-                Quando vinculada, a liderança engajada vê a atividade e pode marcar tarefas e
-                registrar atualizações.
-              </FieldDescription>
-              {errorFor('leadership') ? (
-                <FieldError id="leadership-error">{errorFor('leadership')}</FieldError>
-              ) : null}
-            </Field>
+            <ResponsibleMultiSelect
+              name="responsiblesJson"
+              label="Responsáveis"
+              value={initialResponsibles}
+              error={errorFor('responsiblesJson')}
+              description="Quem conduz este compromisso: equipe da campanha, liderança ou dobradinha — um ou vários."
+              search={searchResponsibles}
+            />

            <RelationMultiSelect
              name="organizations"
@ -380,47 +327,6 @@ const ActivityFormFields = ({
              error={errorFor('organizations')}
              placeholder="Adicionar organização…"
            />
-
-            {canManageAdvisors ? (
-              <FieldSet
-                aria-invalid={Boolean(errorFor('advisors'))}
-                aria-describedby={errorFor('advisors') ? 'advisors-error' : undefined}
-              >
-                <FieldLegend>Assessores responsáveis</FieldLegend>
-                <FieldDescription>
-                  Assessores selecionados podem editar esta atividade e gerenciar suas tarefas.
-                </FieldDescription>
-                <input type="hidden" name="advisorsSubmitted" value="1" />
-                {advisorOptions.length ? (
-                  <div data-slot="checkbox-group" className="grid gap-2 sm:grid-cols-2">
-                    {advisorOptions.map((advisor) => (
-                      <FieldLabel key={advisor.id}>
-                        <Field orientation="horizontal" className="min-h-11 rounded-lg border p-3">
-                          <Checkbox
-                            name="advisors"
-                            value={String(advisor.id)}
-                            defaultChecked={
-                              activity
-                                ? activity.advisorIDs.includes(advisor.id)
-                                : advisor.isCurrent
-                            }
-                          />
-                          <span>
-                            {advisor.name}
-                            {advisor.isCurrent ? ' (você)' : ''}
-                          </span>
-                        </Field>
-                      </FieldLabel>
-                    ))}
-                  </div>
-                ) : (
-                  <p className="text-sm text-muted-foreground">Nenhum assessor disponível.</p>
-                )}
-                {errorFor('advisors') ? (
-                  <FieldError id="advisors-error">{errorFor('advisors')}</FieldError>
-                ) : null}
-              </FieldSet>
-            ) : null}
          </FieldGroup>
        </CardContent>
      </Card>
@ -454,14 +360,12 @@ export const ActivityForm = ({
  action,
  municipalityOptions,
  organizationOptions,
-  advisorOptions,
-  canManageAdvisors,
  activity,
  initialValues,
  fieldErrors: externalFieldErrors,
  submittedTitle,
  searchContacts,
-  searchLeaderships,
+  searchResponsibles,
  knownTags,
  submitLabel,
  cancelHref,
@ -477,14 +381,12 @@ export const ActivityForm = ({
      <ActivityFormFields
        municipalityOptions={municipalityOptions}
        organizationOptions={organizationOptions}
-        advisorOptions={advisorOptions}
-        canManageAdvisors={canManageAdvisors}
        activity={activity}
        initialValues={initialValues}
        fieldErrors={state.fieldErrors ?? externalFieldErrors}
        submittedTitle={state.submittedTitle ?? submittedTitle}
        searchContacts={searchContacts}
-        searchLeaderships={searchLeaderships}
+        searchResponsibles={searchResponsibles}
        knownTags={knownTags}
      />

--- a/src/components/campaign/shared/ResponsibleMultiSelect.tsx
+++ b/src/components/campaign/shared/ResponsibleMultiSelect.tsx
@ -0,0 +1,226 @@
+'use client'
+
+import { ChevronsUpDownIcon, XIcon } from 'lucide-react'
+import { useEffect, useRef, useState } from 'react'
+
+import { Badge } from '@/components/ui/Badge'
+import { Button } from '@/components/ui/button'
+import {
+  Command,
+  CommandDialog,
+  CommandGroup,
+  CommandInput,
+  CommandItem,
+  CommandList,
+} from '@/components/ui/Command'
+import { Field, FieldDescription, FieldError, FieldLabel } from '@/components/ui/field'
+import { Spinner } from '@/components/ui/Spinner'
+import { isContactSearchQueryReady } from '@/lib/contactSearchQuery'
+import {
+  MAX_ACTIVITY_RESPONSIBLES,
+  type ActivityResponsibleCollection,
+} from '@/lib/schemas/activity'
+
+export type ResponsibleOption = {
+  relationTo: ActivityResponsibleCollection
+  id: number
+  name: string
+  typeLabel: string
+}
+
+type ResponsibleMultiSelectProps = {
+  /** FormData field name — a hidden JSON field with the typed entries. */
+  name: string
+  label: string
+  value?: ResponsibleOption[]
+  error?: string
+  description?: string
+  search: (query: string) => Promise<ResponsibleOption[]>
+}
+
+/**
+ * C90 — polymorphic multi-value responsible picker for the activity form
+ * (later reused by the agenda inline creation, C91). One search catalog across
+ * staff/leadership/dobradinha, results grouped by type, removable typed chips.
+ */
+export const ResponsibleMultiSelect = ({
+  name,
+  label,
+  value = [],
+  error,
+  description,
+  search,
+}: ResponsibleMultiSelectProps) => {
+  // Initial-only (like RelationMultiSelect's initialSelectedIDs): on the create
+  // page `value` is a fresh `[]` every render and a sync effect would wipe the
+  // user's picks on any failed submit.
+  const [selected, setSelected] = useState<ResponsibleOption[]>(value)
+  const [open, setOpen] = useState(false)
+  const [query, setQuery] = useState('')
+  const [options, setOptions] = useState<ResponsibleOption[]>([])
+  const [loading, setLoading] = useState(false)
+  const [failed, setFailed] = useState(false)
+  const requestId = useRef(0)
+  const searchRef = useRef(search)
+
+  searchRef.current = search
+
+  useEffect(() => {
+    if (!open) return
+    if (!isContactSearchQueryReady(query)) {
+      setOptions([])
+      setLoading(false)
+      setFailed(false)
+      return
+    }
+
+    const currentRequestId = ++requestId.current
+    const timeout = window.setTimeout(() => {
+      setLoading(true)
+      setFailed(false)
+      void searchRef
+        .current(query.trim())
+        .then((nextOptions) => {
+          if (requestId.current !== currentRequestId) return
+          setOptions(nextOptions)
+        })
+        .catch(() => {
+          if (requestId.current !== currentRequestId) return
+          setFailed(true)
+        })
+        .finally(() => {
+          if (requestId.current === currentRequestId) setLoading(false)
+        })
+    }, 250)
+
+    return () => window.clearTimeout(timeout)
+  }, [open, query])
+
+  const selectedKey = (option: ResponsibleOption) => `${option.relationTo}:${option.id}`
+  const selectedKeys = new Set(selected.map(selectedKey))
+  const atCapacity = selected.length >= MAX_ACTIVITY_RESPONSIBLES
+
+  const add = (option: ResponsibleOption) => {
+    if (atCapacity) return
+    setSelected((current) =>
+      current.some((entry) => selectedKey(entry) === selectedKey(option))
+        ? current
+        : [...current, option],
+    )
+  }
+
+  const remove = (option: ResponsibleOption) => {
+    const key = selectedKey(option)
+    setSelected((current) => current.filter((entry) => selectedKey(entry) !== key))
+  }
+
+  const visibleOptions = options.filter((option) => !selectedKeys.has(selectedKey(option)))
+  const groups = visibleOptions.reduce<Record<string, ResponsibleOption[]>>((acc, option) => {
+    const group = acc[option.typeLabel] ?? []
+    group.push(option)
+    acc[option.typeLabel] = group
+    return acc
+  }, {})
+
+  const selectedLabel =
+    selected.length === 0
+      ? 'Nenhum'
+      : `${selected.length} ${selected.length === 1 ? 'responsável' : 'responsáveis'}`
+
+  return (
+    <Field>
+      <FieldLabel>{label}</FieldLabel>
+      <input
+        type="hidden"
+        name={name}
+        value={JSON.stringify(selected.map(({ relationTo, id }) => ({ relationTo, value: id })))}
+      />
+      {selected.length ? (
+        <ul className="flex flex-wrap gap-1.5">
+          {selected.map((option) => (
+            <li key={selectedKey(option)}>
+              <Badge variant="secondary" className="gap-1 pr-1">
+                <span className="font-normal">{option.name}</span>
+                <span className="text-muted-foreground">{option.typeLabel}</span>
+                <button
+                  type="button"
+                  aria-label={`Remover ${option.name}`}
+                  className="inline-flex size-6 items-center justify-center rounded-full hover:bg-foreground/10"
+                  onClick={() => remove(option)}
+                >
+                  <XIcon className="size-3.5" aria-hidden="true" />
+                </button>
+              </Badge>
+            </li>
+          ))}
+        </ul>
+      ) : null}
+      <Button
+        type="button"
+        variant="outline"
+        className="min-h-11 w-full justify-between font-normal"
+        aria-label={`${label}: ${selectedLabel}`}
+        aria-invalid={error ? true : undefined}
+        aria-describedby={error ? `${name}-error` : undefined}
+        disabled={atCapacity}
+        onClick={() => setOpen(true)}
+      >
+        <span className="truncate">
+          {atCapacity ? 'Limite de responsáveis alcançado' : selectedLabel}
+        </span>
+        <ChevronsUpDownIcon aria-hidden="true" />
+      </Button>
+      <CommandDialog
+        open={open}
+        onOpenChange={setOpen}
+        title={label}
+        description="Busque por nome e escolha um ou mais responsáveis."
+        showCloseButton
+      >
+        <Command shouldFilter={false} label={label}>
+          <CommandInput
+            value={query}
+            onValueChange={setQuery}
+            placeholder="Buscar responsável"
+            aria-label={label}
+          />
+          <CommandList aria-busy={loading}>
+            {loading ? (
+              <div className="flex items-center justify-center gap-2 py-6 text-sm text-muted-foreground">
+                <Spinner aria-hidden="true" />
+                Buscando…
+              </div>
+            ) : failed ? (
+              <p className="py-6 text-center text-sm text-destructive">
+                Não foi possível concluir a busca.
+              </p>
+            ) : Object.keys(groups).length > 0 ? (
+              Object.entries(groups).map(([typeLabel, groupOptions]) => (
+                <CommandGroup key={typeLabel} heading={typeLabel}>
+                  {groupOptions.map((option) => (
+                    <CommandItem
+                      key={selectedKey(option)}
+                      value={`${option.typeLabel}-${option.id}`}
+                      onSelect={() => add(option)}
+                      disabled={atCapacity}
+                    >
+                      <span className="truncate">{option.name}</span>
+                    </CommandItem>
+                  ))}
+                </CommandGroup>
+              ))
+            ) : (
+              <p className="py-6 text-center text-sm text-muted-foreground">
+                {!isContactSearchQueryReady(query)
+                  ? 'Digite ao menos dois caracteres para buscar.'
+                  : 'Nenhum resultado encontrado.'}
+              </p>
+            )}
+          </CommandList>
+        </Command>
+      </CommandDialog>
+      {description ? <FieldDescription>{description}</FieldDescription> : null}
+      {error ? <FieldError id={`${name}-error`}>{error}</FieldError> : null}
+    </Field>
+  )
+}
--- a/src/lib/schemas/activity.ts
+++ b/src/lib/schemas/activity.ts
@ -1,5 +1,6 @@
 import { z } from 'zod'

+import { relationshipId } from '@/lib/relationship'
 import { campaignDemandCreateSchema } from '@/lib/schemas/campaignDemandInput'
 import {
  positiveRelationshipId,
@ -46,6 +47,9 @@ export const activityStatusLabels: Record<ActivityStatus, string> = {
 const MAX_ACTIVITY_ORGANIZATIONS = 20
 export const MAX_ACTIVITY_DEMAND_DRAFTS = 20

+/** C90 — cap for the polymorphic multi-value `responsible` field. */
+export const MAX_ACTIVITY_RESPONSIBLES = 20
+
 const activityDemandDraftSchema = campaignDemandCreateSchema.pick({
  title: true,
  kind: true,
@ -69,6 +73,52 @@ const activityTagsSchema = z
  .array(z.string().trim().min(1).max(MAX_ACTIVITY_TAG_LENGTH))
  .max(MAX_ACTIVITY_TAGS)

+const activityResponsibleCollections = ['campaignUser', 'leadership', 'stateDeputy'] as const
+export type ActivityResponsibleCollection = (typeof activityResponsibleCollections)[number]
+
+export const activityResponsibleTypeLabels: Record<ActivityResponsibleCollection, string> = {
+  campaignUser: 'Equipe',
+  leadership: 'Liderança',
+  stateDeputy: 'Dobradinha',
+}
+
+export type ActivityResponsibleEntry = {
+  relationTo: ActivityResponsibleCollection
+  value: number
+}
+
+/**
+ * Normalizes a polymorphic `responsible` value (ids or `{relationTo, value}`
+ * objects at any depth) into typed entries, dropping malformed rows. Shared by
+ * the collection validation, the notification recipients and the view models —
+ * one place to add a future responsible kind.
+ */
+export const parseActivityResponsibleEntries = (value: unknown): ActivityResponsibleEntry[] =>
+  (Array.isArray(value) ? value : [])
+    .map((entry): ActivityResponsibleEntry | null => {
+      if (typeof entry !== 'object' || entry === null) return null
+      const record = entry as { relationTo?: unknown; value?: unknown }
+      const relationTo = activityResponsibleCollections.find(
+        (candidate) => candidate === record.relationTo,
+      )
+      if (!relationTo) return null
+      const id = relationshipId(record.value)
+      return id === null ? null : { relationTo, value: id }
+    })
+    .filter((entry): entry is ActivityResponsibleEntry => entry !== null)
+
+/**
+ * C90 — one typed responsible entry. `value` must be a positive id and the
+ * `relationTo` one of the allowed collections; the collection hook re-verifies
+ * the entity exists / stays eligible.
+ */
+export const activityResponsibleSchema = z.object({
+  relationTo: z.enum(activityResponsibleCollections),
+  value: positiveRelationshipId,
+})
+
+const activityResponsiblesSchema = z.array(activityResponsibleSchema).max(MAX_ACTIVITY_RESPONSIBLES)
+
 const activityFieldsSchema = z.object({
  title: z.string().trim().min(2).max(160),
  tags: activityTagsSchema.optional(),
@ -80,9 +130,7 @@ const activityFieldsSchema = z.object({
  municipality: positiveRelationshipId,
  locality: trimmedOptionalText(160),
  organizations: z.array(positiveRelationshipId).max(MAX_ACTIVITY_ORGANIZATIONS).optional(),
-  advisors: z.array(positiveRelationshipId).optional(),
-  responsible: positiveRelationshipId.optional(),
-  leadership: positiveRelationshipId.optional(),
+  responsible: activityResponsiblesSchema.optional(),
  tasks: z.array(taskSchema).optional(),
 })

@ -182,8 +230,6 @@ export const activityUpdateSchema = activityFieldsSchema
    description: trimmedNullableText(4000),
    startAt: z.string().datetime().nullable().optional(),
    endAt: z.string().datetime().nullable().optional(),
-    responsible: positiveRelationshipId.nullable().optional(),
-    leadership: positiveRelationshipId.nullable().optional(),
    status: z.enum(activityStatuses).optional(),
  })
  .superRefine((data, context) => {
--- a/src/migrations/20260808_184113_remodel_activity_responsible.json
+++ b/src/migrations/20260808_184113_remodel_activity_responsible.json
--- a/src/migrations/20260808_184113_remodel_activity_responsible.ts
+++ b/src/migrations/20260808_184113_remodel_activity_responsible.ts
@ -0,0 +1,78 @@
+import { MigrateUpArgs, MigrateDownArgs, sql } from '@payloadcms/db-postgres'
+
+export async function up({ db, payload, req }: MigrateUpArgs): Promise<void> {
+  await db.execute(sql`
+   ALTER TABLE "activity" DROP CONSTRAINT "activity_responsible_id_contact_id_fk";
+  
+  ALTER TABLE "activity" DROP CONSTRAINT "activity_leadership_id_leadership_id_fk";
+  
+  DROP INDEX "activity_responsible_idx";
+  DROP INDEX "activity_leadership_idx";
+  ALTER TABLE "activity_rels" ADD COLUMN "leadership_id" integer;
+  ALTER TABLE "activity_rels" ADD COLUMN "state_deputy_id" integer;
+  ALTER TABLE "activity_rels" ADD CONSTRAINT "activity_rels_leadership_fk" FOREIGN KEY ("leadership_id") REFERENCES "public"."leadership"("id") ON DELETE cascade ON UPDATE no action;
+  ALTER TABLE "activity_rels" ADD CONSTRAINT "activity_rels_state_deputy_fk" FOREIGN KEY ("state_deputy_id") REFERENCES "public"."state_deputy"("id") ON DELETE cascade ON UPDATE no action;
+  CREATE INDEX "activity_rels_leadership_id_idx" ON "activity_rels" USING btree ("leadership_id");
+  CREATE INDEX "activity_rels_state_deputy_id_idx" ON "activity_rels" USING btree ("state_deputy_id");
+
+  -- C90 data reconciliation (must run before the columns are dropped).
+  -- 1) The old advisors (staff hasMany) rows move to the single responsible path.
+  UPDATE "activity_rels"
+  SET "path" = 'responsible'
+  WHERE "path" = 'advisors' AND "campaign_user_id" IS NOT NULL;
+
+  -- 2) Each old activity.leadership_id becomes a responsible row.
+  INSERT INTO "activity_rels" ("parent_id", "path", "order", "leadership_id")
+  SELECT a."id", 'responsible', COALESCE(m.max_order + 1, 1), a."leadership_id"
+  FROM "activity" a
+  LEFT JOIN (
+    SELECT r."parent_id", max(r."order") AS max_order
+    FROM "activity_rels" r
+    WHERE r."path" = 'responsible'
+    GROUP BY r."parent_id"
+  ) m ON m."parent_id" = a."id"
+  WHERE a."leadership_id" IS NOT NULL;
+
+  -- 3) Renumber responsible rows sequentially per parent so sparse orders
+  --    left by the migration never confuse reading.
+  UPDATE "activity_rels" r
+  SET "order" = t.new_order
+  FROM (
+    SELECT r2."id", r2."parent_id", row_number() OVER (
+      PARTITION BY r2."parent_id" ORDER BY r2."order", r2."id"
+    ) AS new_order
+    FROM "activity_rels" r2
+    WHERE r2."path" = 'responsible'
+  ) t
+  WHERE r."id" = t."id";
+
+  -- 4) The old responsible (Contact) has no valid type in the new union;
+  --    C90 gate decided to discard it. Surface the count at deploy time.
+  DO $$
+  DECLARE contacts_dropped integer;
+  BEGIN
+    SELECT count(*) INTO contacts_dropped FROM "activity" WHERE "responsible_id" IS NOT NULL;
+    RAISE NOTICE 'remodel_activity_responsible: descartando % responsável(is) Contact antigo(s)', contacts_dropped;
+  END $$;
+
+  ALTER TABLE "activity" DROP COLUMN "responsible_id";
+  ALTER TABLE "activity" DROP COLUMN "leadership_id";`)
+}
+
+export async function down({ db, payload, req }: MigrateDownArgs): Promise<void> {
+  await db.execute(sql`
+   ALTER TABLE "activity_rels" DROP CONSTRAINT "activity_rels_leadership_fk";
+  
+  ALTER TABLE "activity_rels" DROP CONSTRAINT "activity_rels_state_deputy_fk";
+  
+  DROP INDEX "activity_rels_leadership_id_idx";
+  DROP INDEX "activity_rels_state_deputy_id_idx";
+  ALTER TABLE "activity" ADD COLUMN "responsible_id" integer;
+  ALTER TABLE "activity" ADD COLUMN "leadership_id" integer;
+  ALTER TABLE "activity" ADD CONSTRAINT "activity_responsible_id_contact_id_fk" FOREIGN KEY ("responsible_id") REFERENCES "public"."contact"("id") ON DELETE set null ON UPDATE no action;
+  ALTER TABLE "activity" ADD CONSTRAINT "activity_leadership_id_leadership_id_fk" FOREIGN KEY ("leadership_id") REFERENCES "public"."leadership"("id") ON DELETE set null ON UPDATE no action;
+  CREATE INDEX "activity_responsible_idx" ON "activity" USING btree ("responsible_id");
+  CREATE INDEX "activity_leadership_idx" ON "activity" USING btree ("leadership_id");
+  ALTER TABLE "activity_rels" DROP COLUMN "leadership_id";
+  ALTER TABLE "activity_rels" DROP COLUMN "state_deputy_id";`)
+}
--- a/src/migrations/index.ts
+++ b/src/migrations/index.ts
@ -44,6 +44,7 @@ import * as migration_20260806_082110_add_state_deputy_contact from './20260806_
 import * as migration_20260806_120000_c14_remodel_activity_agenda from './20260806_120000_c14_remodel_activity_agenda';
 import * as migration_20260807_030000_unify_municipality_update from './20260807_030000_unify_municipality_update';
 import * as migration_20260808_134911_add_calendar_feed from './20260808_134911_add_calendar_feed';
+import * as migration_20260808_184113_remodel_activity_responsible from './20260808_184113_remodel_activity_responsible';

 export const migrations = [
  {
@ -274,6 +275,11 @@ export const migrations = [
  {
    up: migration_20260808_134911_add_calendar_feed.up,
    down: migration_20260808_134911_add_calendar_feed.down,
-    name: '20260808_134911_add_calendar_feed'
+    name: '20260808_134911_add_calendar_feed',
+  },
+  {
+    up: migration_20260808_184113_remodel_activity_responsible.up,
+    down: migration_20260808_184113_remodel_activity_responsible.down,
+    name: '20260808_184113_remodel_activity_responsible'
  },
 ];
--- a/src/payload-types.ts
+++ b/src/payload-types.ts
@ -747,9 +747,22 @@ export interface Activity {
  municipality: number | Municipality;
  locality?: string | null;
  organizations?: (number | Organization)[] | null;
-  advisors?: (number | CampaignUser)[] | null;
-  responsible?: (number | null) | Contact;
-  leadership?: (number | null) | Leadership;
+  responsible?:
+    | (
+        | {
+            relationTo: 'campaignUser';
+            value: number | CampaignUser;
+          }
+        | {
+            relationTo: 'leadership';
+            value: number | Leadership;
+          }
+        | {
+            relationTo: 'stateDeputy';
+            value: number | StateDeputy;
+          }
+      )[]
+    | null;
  tasks?:
    | {
        title: string;
@ -1787,9 +1800,7 @@ export interface ActivitySelect<T extends boolean = true> {
  municipality?: T;
  locality?: T;
  organizations?: T;
-  advisors?: T;
  responsible?: T;
-  leadership?: T;
  tasks?:
    | T
    | {
--- a/src/utilities/access/activities.ts
+++ b/src/utilities/access/activities.ts
@ -9,7 +9,6 @@ import { getAccessibleMunicipalityIds } from '@/utilities/access/municipalities'
 import {
  advisorMunicipalityScopeWhere,
  getFreshCampaignUser,
-  isCampaignCoordinator,
  isCampaignLeader,
  isCampaignStaff,
  isCampaignUnrestricted,
@ -41,9 +40,12 @@ export const canReadActivity: Access = async ({ req }): Promise<boolean | Where>
    const municipalityIDs = await getAccessibleMunicipalityIds(req, currentUser)
    return {
      or: [
+        // C90 — polymorphic `responsible`: the only scalar query the adapter
+        // supports on a multi-relation relationship is the object notation
+        // with `equals` (see @payloadcms/drizzle sanitizeQueryValue).
        {
-          advisors: {
-            contains: currentUser.id,
+          responsible: {
+            equals: { relationTo: 'campaignUser', value: currentUser.id },
          },
        },
        advisorMunicipalityScopeWhere('municipality', municipalityIDs),
@ -63,10 +65,5 @@ export const canSetActivitySystemField: FieldAccess = ({ req }) => isPayloadAdmi

 export const canSetActivityStatus: FieldAccess = canStaffCreateActivity

-export const canCreateActivityAdvisors: FieldAccess = canStaffCreateActivity
-
-export const canManageActivityAdvisors: FieldAccess = async ({ req }) => {
-  if (isPayloadAdmin(req.user)) return true
-
-  return isCampaignCoordinator(await getFreshCampaignUser(req))
-}
+/** C90 — the unified `responsible` field is editable by any staff with row access. */
+export const canSetActivityResponsible: FieldAccess = canStaffCreateActivity
--- a/src/utilities/activityFormData.ts
+++ b/src/utilities/activityFormData.ts
@ -5,7 +5,6 @@ import {
  boundedJsonFormValue,
  checkboxFormValue,
  FormDataBoundaryError,
-  nullableRelationshipFormValue,
  optionalFormText,
  repeatedRelationshipFormValues,
  requiredFormText,
@ -13,13 +12,16 @@ import {
 } from '@/lib/formData'
 import {
  activityDemandDraftsSchema,
+  activityResponsibleSchema,
  activityStatuses,
  MAX_ACTIVITY_DEMAND_DRAFTS,
+  MAX_ACTIVITY_RESPONSIBLES,
  MAX_ACTIVITY_TAG_LENGTH,
  MAX_ACTIVITY_TAGS,
  tourStopDraftsSchema,
  type ActivityCreateInput,
  type ActivityDemandDraft,
+  type ActivityResponsibleCollection,
  type ActivityUpdateInput,
  type TourStopDraft,
 } from '@/lib/schemas/activity'
@ -114,10 +116,41 @@ const parseTagsFormData = (formData: FormData): string[] => {
  return tags
 }

-const parseSharedActivityFormData = (formData: FormData) => {
-  const responsible = nullableRelationshipFormValue(formData, 'responsible')
-  const leadership = nullableRelationshipFormValue(formData, 'leadership')
+type ParsedResponsible = {
+  relationTo: ActivityResponsibleCollection
+  value: number
+}

+/**
+ * C90 — the polymorphic multi-value `responsible` submits as a bounded JSON
+ * field (same precedent as `tasksJson`/`tagsJson`): repeated hidden inputs
+ * would lose the `relationTo` correlation.
+ */
+const parseResponsiblesFormData = (formData: FormData): ParsedResponsible[] => {
+  const raw = boundedJsonFormValue(formData, 'responsiblesJson', 8_000)
+  if (raw === undefined) return []
+  if (!Array.isArray(raw)) {
+    throw new FormDataBoundaryError('responsiblesJson', 'Lista de responsáveis inválida.')
+  }
+  if (raw.length > MAX_ACTIVITY_RESPONSIBLES) {
+    throw new FormDataBoundaryError(
+      'responsiblesJson',
+      `Informe no máximo ${MAX_ACTIVITY_RESPONSIBLES} responsáveis.`,
+    )
+  }
+  return raw.map((item, index) => {
+    const parsed = activityResponsibleSchema.safeParse(item)
+    if (!parsed.success) {
+      throw new FormDataBoundaryError(
+        'responsiblesJson',
+        `Responsável ${index + 1} inválido. Atualize a página e refaça a escolha.`,
+      )
+    }
+    return parsed.data
+  })
+}
+
+const parseSharedActivityFormData = (formData: FormData) => {
  return {
    title: optionalFormText(formData, 'title') ?? '',
    tags: parseTagsFormData(formData),
@ -129,8 +162,7 @@ const parseSharedActivityFormData = (formData: FormData) => {
    municipality: requiredRelationshipFormValue(formData, 'municipality'),
    locality: optionalFormText(formData, 'locality'),
    organizations: repeatedRelationshipFormValues(formData, 'organizations'),
-    responsible,
-    leadership,
+    responsible: parseResponsiblesFormData(formData),
    tasks: parseTasksFormData(formData),
    demands: parseDemandDraftsFormData(formData),
  }
@ -142,15 +174,12 @@ export type ParsedActivityCreateFormData = ActivityCreateInput & {

 export const parseActivityCreateFormData = (formData: FormData): ParsedActivityCreateFormData => {
  const shared = parseSharedActivityFormData(formData)
-  const advisorIds = repeatedRelationshipFormValues(formData, 'advisors')

  return {
    ...shared,
    status: (shared.status ?? 'confirmado') as ActivityCreateInput['status'],
-    responsible: shared.responsible ?? undefined,
-    leadership: shared.leadership ?? undefined,
+    responsible: shared.responsible.length ? shared.responsible : undefined,
    organizations: shared.organizations.length ? shared.organizations : undefined,
-    advisors: advisorIds.length ? advisorIds : undefined,
  }
 }

@ -194,10 +223,6 @@ export type ParsedActivityUpdateFormData = ActivityUpdateInput & {

 export const parseActivityUpdateFormData = (formData: FormData): ParsedActivityUpdateFormData => {
  const shared = parseSharedActivityFormData(formData)
-  const advisorIds = repeatedRelationshipFormValues(formData, 'advisors')
-  // Checkboxes only submit when checked, so a hidden marker distinguishes
-  // "advisors section rendered but all unchecked" from "not editable" (advisor view).
-  const hasAdvisors = formData.has('advisorsSubmitted')

  return {
    ...shared,
@ -207,9 +232,10 @@ export const parseActivityUpdateFormData = (formData: FormData): ParsedActivityU
    description: shared.description ?? null,
    startAt: shared.startAt ?? null,
    endAt: shared.endAt ?? null,
-    responsible: shared.responsible,
-    leadership: shared.leadership,
    organizations: shared.organizations,
-    advisors: hasAdvisors ? advisorIds : undefined,
+    // Update always submits the full list (possibly empty) so clearing works.
+    // Invariant: the form always renders `responsiblesJson` (even empty) — a
+    // partial form that omits it would silently clear `responsible`.
+    responsible: shared.responsible,
  }
 }
--- a/src/utilities/activityResponsibleSearch.ts
+++ b/src/utilities/activityResponsibleSearch.ts
@ -0,0 +1,117 @@
+import 'server-only'
+
+import type { Payload } from 'payload'
+
+import { isContactSearchQueryReady, normalizeContactSearchQuery } from '@/lib/contactSearchQuery'
+import { populatedContactName } from '@/lib/relationship'
+import {
+  activityResponsibleTypeLabels,
+  type ActivityResponsibleCollection,
+} from '@/lib/schemas/activity'
+import type { CampaignUser } from '@/payload-types'
+import { searchActivityLeadershipOptions } from '@/utilities/activityLeadershipOptions'
+import { eligibleCampaignStaffWhere } from '@/utilities/campaignAccess'
+
+export type ActivityResponsibleSearchOption = {
+  relationTo: ActivityResponsibleCollection
+  id: number
+  name: string
+  typeLabel: string
+}
+
+const RESPONSIBLE_SEARCH_LIMIT = 20
+
+const toResponsibleOption = (
+  relationTo: ActivityResponsibleCollection,
+  id: number,
+  name: string,
+): ActivityResponsibleSearchOption => ({
+  relationTo,
+  id,
+  name,
+  typeLabel: activityResponsibleTypeLabels[relationTo],
+})
+
+/**
+ * C90 — one async catalog across the three responsible types: eligible staff,
+ * engaged leaderships and dobradinhas, each read through the actor's own
+ * access (`overrideAccess: false`), so a leadership outside an advisor's
+ * portfolio never shows up as a responsible option.
+ */
+export const searchActivityResponsibleOptions = async (
+  payload: Pick<Payload, 'find'>,
+  user: CampaignUser,
+  query: string,
+): Promise<ActivityResponsibleSearchOption[]> => {
+  const normalizedQuery = typeof query === 'string' ? query : ''
+  if (!isContactSearchQueryReady(normalizedQuery)) return []
+
+  const { trimmed, digits } = normalizeContactSearchQuery(normalizedQuery)
+
+  const [staff, leaderships, deputies] = await Promise.all([
+    searchStaffResponsibles(payload, user, trimmed),
+    searchActivityLeadershipOptions(payload, user, trimmed),
+    searchStateDeputyResponsibles(payload, user, trimmed, digits),
+  ])
+
+  const staffOptions = staff.map(({ id, name }) => toResponsibleOption('campaignUser', id, name))
+  const leadershipOptions = leaderships.map(({ id, label }) =>
+    toResponsibleOption('leadership', id, label),
+  )
+  const deputyOptions = deputies.map(({ id, name }) => toResponsibleOption('stateDeputy', id, name))
+
+  return [...staffOptions, ...leadershipOptions, ...deputyOptions].sort((left, right) =>
+    left.name.localeCompare(right.name, 'pt-BR'),
+  )
+}
+
+const searchStaffResponsibles = async (
+  payload: Pick<Payload, 'find'>,
+  user: CampaignUser,
+  trimmed: string,
+) => {
+  const result = await payload.find({
+    collection: 'campaignUser',
+    where: {
+      and: [eligibleCampaignStaffWhere, ...(trimmed ? [{ name: { contains: trimmed } }] : [])],
+    },
+    depth: 0,
+    limit: RESPONSIBLE_SEARCH_LIMIT,
+    page: 1,
+    select: { name: true },
+    user,
+    overrideAccess: false,
+  })
+  return result.docs.map(({ id, name }) => ({ id, name: name ?? `Equipe #${id}` }))
+}
+
+const searchStateDeputyResponsibles = async (
+  payload: Pick<Payload, 'find'>,
+  user: CampaignUser,
+  trimmed: string,
+  digits: string,
+) => {
+  const result = await payload.find({
+    collection: 'stateDeputy',
+    where: {
+      or: [
+        { 'contact.name': { contains: trimmed } },
+        { 'contact.phone': { contains: digits || trimmed } },
+      ],
+    },
+    depth: 1,
+    limit: RESPONSIBLE_SEARCH_LIMIT,
+    page: 1,
+    sort: 'contact.name',
+    select: { contact: true, party: true },
+    user,
+    overrideAccess: false,
+  })
+  return result.docs.map((stateDeputy) => {
+    const plainName = populatedContactName(stateDeputy.contact)
+    return {
+      id: stateDeputy.id,
+      name: stateDeputy.party ? `${plainName} (${stateDeputy.party})` : plainName,
+    }
+  })
+}
--- a/src/utilities/activityUi.ts
+++ b/src/utilities/activityUi.ts
@ -262,9 +262,10 @@ export const buildActivityListWhere = (state: ActivityListState, now: Date): Whe
  if (state.q) {
    const q = isActivityListSearchReady(state.q)
    if (q) {
-      filters.push({
-        or: [{ title: { contains: q } }, { 'responsible.name': { contains: q } }],
-      })
+      // C90 — `responsible` is a polymorphic multi-relation; a nested
+      // `responsible.name` query is not supported on it, so the list search is
+      // title-only (see impl plan).
+      filters.push({ title: { contains: q } })
    }
  }

--- a/src/utilities/activityViewModels.ts
+++ b/src/utilities/activityViewModels.ts
@ -1,6 +1,20 @@
 import { formatBahiaDateTimeLabel } from '@/lib/campaignTime'
-import { isPopulatedRelationship, relationshipId } from '@/lib/relationship'
-import type { Activity, CampaignUser, Contact, Municipality, Organization } from '@/payload-types'
+import { isPopulatedRelationship, populatedContactName, relationshipId } from '@/lib/relationship'
+import {
+  activityResponsibleTypeLabels,
+  parseActivityResponsibleEntries,
+  type ActivityResponsibleCollection,
+  type ActivityResponsibleEntry,
+} from '@/lib/schemas/activity'
+import type {
+  Activity,
+  CampaignUser,
+  Contact,
+  Leadership,
+  Municipality,
+  Organization,
+  StateDeputy,
+} from '@/payload-types'
 import { canCampaignUserRescheduleActivity } from '@/utilities/access/activities'
 import type { ActivityDetailTab } from '@/utilities/activityDetailTabUi'

@ -17,6 +31,60 @@ export const activityMunicipalitySummary = (
    ? { id: municipality.id, name: municipality.name, slug: municipality.slug }
    : null

+// ---------------------------------------------------------------------------
+// C90 — polymorphic `responsible` display (typed chips)
+// ---------------------------------------------------------------------------
+
+export type ActivityResponsibleDisplay = {
+  relationTo: ActivityResponsibleCollection
+  id: number
+  name: string
+  typeLabel: string
+}
+
+const responsibleEntryName = (
+  relationTo: ActivityResponsibleEntry['relationTo'],
+  value: unknown,
+): string | null => {
+  switch (relationTo) {
+    case 'campaignUser':
+      return isPopulatedRelationship<CampaignUser>(value) ? value.name : null
+    case 'leadership':
+      return isPopulatedRelationship<Leadership>(value)
+        ? populatedContactName((value as Leadership).contact)
+        : null
+    case 'stateDeputy':
+      return isPopulatedRelationship<StateDeputy>(value)
+        ? populatedContactName((value as StateDeputy).contact)
+        : null
+  }
+}
+
+/** Maps a polymorphic `responsible` value (ids or populated docs) to display chips. */
+const mapActivityResponsibles = (
+  value: readonly unknown[] | null | undefined,
+): ActivityResponsibleDisplay[] => {
+  const populatedByKey = new Map<string, unknown>()
+  for (const raw of Array.isArray(value) ? value : []) {
+    const record = raw as { relationTo?: unknown; value?: unknown }
+    const id = relationshipId(record.value)
+    if (typeof record.relationTo === 'string' && id !== null) {
+      populatedByKey.set(`${record.relationTo}:${id}`, record.value)
+    }
+  }
+
+  return parseActivityResponsibleEntries(value).map((entry) => ({
+    relationTo: entry.relationTo,
+    id: entry.value,
+    name:
+      responsibleEntryName(
+        entry.relationTo,
+        populatedByKey.get(`${entry.relationTo}:${entry.value}`),
+      ) ?? `Responsável #${entry.value}`,
+    typeLabel: activityResponsibleTypeLabels[entry.relationTo],
+  }))
+}
+
 export const formatActivityWhenLabel = (startAt: string | null | undefined): string =>
  startAt ? formatBahiaDateTimeLabel(startAt) : 'Data a definir'

@ -107,7 +175,7 @@ export type ActivityListViewModel = {
  municipalityName: string | null
  locality: string | null
  locationLabel: string
-  responsibleName: string | null
+  responsibles: ActivityResponsibleDisplay[]
  taskProgress: { done: number; total: number }
 }

@ -130,7 +198,7 @@ export const toActivityListViewModel = (activity: Activity): ActivityListViewMod
    municipalityName,
    locality: activity.locality ?? null,
    locationLabel: formatActivityLocationLabel({ municipalityName, locality: activity.locality }),
-    responsibleName: relationshipName(activity.responsible),
+    responsibles: mapActivityResponsibles(activity.responsible),
    taskProgress: {
      done: activity.taskDoneCount ?? 0,
      total: activity.taskTotal ?? 0,
@ -150,9 +218,7 @@ export const activityFormSelect = {
  municipality: true,
  locality: true,
  organizations: true,
-  advisors: true,
  responsible: true,
-  leadership: true,
  tasks: true,
 } as const

@ -177,9 +243,7 @@ export type ActivityFormViewModel = {
  municipalityId: number | null
  locality: string | null
  organizationIDs: number[]
-  advisorIDs: number[]
-  responsible: { id: number; name: string; phone: string | null } | null
-  leadership: { id: number; label: string } | null
+  responsibles: ActivityResponsibleDisplay[]
  tasks: ActivityFormTaskViewModel[]
 }

@ -199,26 +263,7 @@ export const toActivityFormViewModel = (activity: Activity): ActivityFormViewMod
  municipalityId: relationshipId(activity.municipality),
  locality: activity.locality ?? null,
  organizationIDs: relationshipIds(activity.organizations),
-  advisorIDs: relationshipIds(activity.advisors),
-  responsible: isPopulatedRelationship<Contact>(activity.responsible)
-    ? {
-        id: activity.responsible.id,
-        name: activity.responsible.name,
-        phone: activity.responsible.phone ?? null,
-      }
-    : null,
-  leadership: (() => {
-    const leadershipId = relationshipId(activity.leadership)
-    if (!leadershipId) return null
-    if (isPopulatedRelationship(activity.leadership)) {
-      const contact = activity.leadership.contact
-      const contactName = isPopulatedRelationship<Contact>(contact)
-        ? contact.name
-        : `Liderança #${leadershipId}`
-      return { id: leadershipId, label: contactName }
-    }
-    return { id: leadershipId, label: `Liderança #${leadershipId}` }
-  })(),
+  responsibles: mapActivityResponsibles(activity.responsible),
  tasks: (activity.tasks ?? []).map((task) => ({
    id: task.id ?? null,
    title: task.title,
@ -246,7 +291,6 @@ const activityDetailContextSelect = {
  municipality: true,
  locality: true,
  organizations: true,
-  advisors: true,
  responsible: true,
  createdBy: true,
  updatedAt: true,
@ -313,9 +357,7 @@ export type ActivityDetailViewModel = {
  locality: string | null
  locationLabel: string
  organizations: Array<{ id: number; name: string }>
-  advisors: Array<{ id: number; name: string }>
-  responsibleId: number | null
-  responsibleName: string | null
+  responsibles: ActivityResponsibleDisplay[]
  taskProgress: { done: number; total: number }
  tasks: ActivityTaskViewModel[]
  updates: ActivityUpdateViewModel[]
@ -390,14 +432,7 @@ export const toActivityDetailViewModel = (
          isPopulatedRelationship<Organization>(organization),
        )
        .map(({ id, name }) => ({ id, name })) ?? [],
-    advisors:
-      activity.advisors
-        ?.filter((advisor): advisor is CampaignUser =>
-          isPopulatedRelationship<CampaignUser>(advisor),
-        )
-        .map(({ id, name }) => ({ id, name })) ?? [],
-    responsibleId: relationshipId(activity.responsible),
-    responsibleName: relationshipName(activity.responsible),
+    responsibles: mapActivityResponsibles(activity.responsible),
    taskProgress: {
      done: activity.taskDoneCount ?? 0,
      total: activity.taskTotal ?? 0,
--- a/src/utilities/campaignAccess.ts
+++ b/src/utilities/campaignAccess.ts
@ -107,10 +107,9 @@ export {
 export {
  canCampaignUserRescheduleActivity,
  canCreateActivity,
-  canCreateActivityAdvisors,
  canDeleteActivity,
-  canManageActivityAdvisors,
  canReadActivity,
+  canSetActivityResponsible,
  canSetActivityStatus,
  canSetActivitySystemField,
  canUpdateActivity,
--- a/src/utilities/notification/notificationEvents.ts
+++ b/src/utilities/notification/notificationEvents.ts
@ -9,6 +9,7 @@ import {
  SKIP_CAMPAIGN_NOTIFICATION_CONTEXT_KEY,
 } from '@/lib/notificationContract'
 import { relationshipId, uniqueRelationshipIds } from '@/lib/relationship'
+import { parseActivityResponsibleEntries } from '@/lib/schemas/activity'
 import type { MunicipalityUpdatePolarity } from '@/lib/schemas/municipalityUpdate'
 import { municipalityUpdatePolarityLabels } from '@/lib/schemas/municipalityUpdate'
 import { createCampaignNotifications } from '@/utilities/notification/createCampaignNotification'
@ -161,7 +162,7 @@ export const notifyActivityNeedsAttention = async (
    title: string
    slug: string
    municipality: unknown
-    advisors?: unknown
+    responsible?: unknown
  },
 ): Promise<void> => {
  if (shouldSkipCampaignNotification(req.context)) return
@ -178,9 +179,15 @@ export const notifyActivityNeedsAttention = async (
    req,
  })

-  const advisorIDs = uniqueRelationshipIds(doc.advisors as readonly unknown[] | null | undefined)
-
-  const recipientIDs = [...new Set(advisorIDs)]
+  // C90 — recipients are the staff members listed as responsible for the
+  // commitment (leadership/dobradinha entries have no notification account).
+  const recipientIDs = [
+    ...new Set(
+      parseActivityResponsibleEntries(doc.responsible)
+        .filter((entry) => entry.relationTo === 'campaignUser')
+        .map((entry) => entry.value),
+    ),
+  ]

  await createCampaignNotifications(
    req.payload,
--- a/tests/e2e/campaignActivity.e2e.spec.ts
+++ b/tests/e2e/campaignActivity.e2e.spec.ts
@ -26,6 +26,11 @@ test.describe('Atividades — registro-fundação', () => {
    await page.getByLabel('Início *').fill('2026-08-15T10:00')
    await page.getByLabel('Município *').selectOption(String(municipality.id))

+    // C90 — the unified polymorphic selector replaces the old Contact
+    // responsável + assessores/liderança fields.
+    await expect(page.getByRole('button', { name: /Responsáveis: Nenhum/ })).toBeVisible()
+    await expect(page.getByText('Assessores responsáveis')).toHaveCount(0)
+
    await page.getByRole('button', { name: 'Adicionar demanda' }).click()
    await page.getByLabel('Título da demanda 1').fill(transportDemand)
    await page.getByLabel('Tipo da demanda 1').selectOption('transporte')
--- a/tests/int/campaignActivity.int.spec.ts
+++ b/tests/int/campaignActivity.int.spec.ts
@ -14,6 +14,7 @@ import {
  loadActivityAgendaEventsRecord,
  rescheduleActivityRecord,
 } from '@/app/(campaign)/campanha/actions/activity'
+import { relationshipId } from '@/lib/relationship'
 import {
  ACTIVITY_DEPUTY_RESCHEDULE_FORBIDDEN_MESSAGE,
  activityCreateSchema,
@ -28,7 +29,7 @@ import {
  getAccessibleLeadershipIds,
 } from '@/utilities/campaignAccess'

-import { installCampaignFixtures, relationId, relationIds } from '../helpers/campaignFixtures'
+import { installCampaignFixtures, relationId } from '../helpers/campaignFixtures'
 import { stub } from '../helpers/stub'

 /** Create data with server-derived fields (e.g. `slug`) intentionally omitted. */
@ -246,9 +247,10 @@ describe('activity domain', () => {
      collection: 'activity',
      data: stub<ActivityCreateData>({
        ...validActivityInput(municipality.id),
-        advisors: [advisor.id],
-        leadership: leadership.id,
-        responsible: contact.id,
+        responsible: [
+          { relationTo: 'campaignUser', value: advisor.id },
+          { relationTo: 'leadership', value: leadership.id },
+        ],
        createdBy: coordinator.id,
      }),
      overrideAccess: true,
@ -264,14 +266,20 @@ describe('activity domain', () => {
      req: stub<PayloadRequest>({ user: advisor, payload, context: {} }),
    })
    expect(advisorRead).toEqual({
-      or: [{ advisors: { contains: advisor.id } }, { municipality: { in: [municipality.id] } }],
+      or: [
+        { responsible: { equals: { relationTo: 'campaignUser', value: advisor.id } } },
+        { municipality: { in: [municipality.id] } },
+      ],
    })

    const otherAdvisorRead = await canReadActivity({
      req: stub<PayloadRequest>({ user: otherAdvisor, payload, context: {} }),
    })
    expect(otherAdvisorRead).toEqual({
-      or: [{ advisors: { contains: otherAdvisor.id } }, { municipality: { in: [] } }],
+      or: [
+        { responsible: { equals: { relationTo: 'campaignUser', value: otherAdvisor.id } } },
+        { municipality: { in: [] } },
+      ],
    })

    const leaderRead = await canReadActivity({
@ -289,7 +297,10 @@ describe('activity domain', () => {
      req: stub<PayloadRequest>({ user: advisor, payload, context: {} }),
    })
    expect(advisorUpdate).toEqual({
-      or: [{ advisors: { contains: advisor.id } }, { municipality: { in: [municipality.id] } }],
+      or: [
+        { responsible: { equals: { relationTo: 'campaignUser', value: advisor.id } } },
+        { municipality: { in: [municipality.id] } },
+      ],
    })

    const visibleToAdvisor = await payload.find({
@ -321,7 +332,102 @@ describe('activity domain', () => {
    ).rejects.toThrow(/permissão/i)
  })

-  it('auto-includes the creating advisor in advisors', async () => {
+  it('grants an advisor access to an activity they are responsible for outside their portfolio (C90 polymorphic leg)', async () => {
+    const fixtures = campaignFixtures()
+    const advisor = await fixtures.createCampaignUser('advisor')
+    const [ownMunicipality, otherMunicipality] = await Promise.all([
+      fixtures.getMunicipality(),
+      fixtures.getMunicipality(),
+    ])
+    await fixtures.assignMunicipalityAdvisors(ownMunicipality, [advisor])
+
+    const visibleByResponsibility = await payload.create({
+      collection: 'activity',
+      data: stub<ActivityCreateData>({
+        ...validActivityInput(otherMunicipality.id),
+        title: fixtures.value('Fora do portfólio, mas responsável'),
+        responsible: [{ relationTo: 'campaignUser', value: advisor.id }],
+      }),
+      overrideAccess: true,
+    })
+    fixtures.own('activity', visibleByResponsibility.id)
+
+    const invisible = await payload.create({
+      collection: 'activity',
+      data: stub<ActivityCreateData>({
+        ...validActivityInput(otherMunicipality.id),
+        title: fixtures.value('Fora do portfólio e sem o assessor'),
+      }),
+      overrideAccess: true,
+    })
+    fixtures.own('activity', invisible.id)
+
+    const result = await payload.find({
+      collection: 'activity',
+      where: { id: { in: [visibleByResponsibility.id, invisible.id] } },
+      user: advisor,
+      overrideAccess: false,
+      depth: 0,
+    })
+
+    // The polymorphic `responsible` object-notation equals is the exact leg
+    // that keeps the advisor's right when the municipality scope does not.
+    expect(result.docs.map((doc) => doc.id)).toEqual([visibleByResponsibility.id])
+  })
+
+  it('lets a responsible advisor re-save an activity whose leadership they cannot read (C90 existence validation)', async () => {
+    const fixtures = campaignFixtures()
+    const advisor = await fixtures.createCampaignUser('advisor')
+    const foreignMunicipality = await fixtures.getMunicipality()
+    const foreignLeadership = await fixtures.createLeadership({
+      contact: (await fixtures.createContact()).id,
+      municipalities: [foreignMunicipality.id],
+      supportStatus: 'engajado',
+    })
+
+    const activity = await payload.create({
+      collection: 'activity',
+      data: stub<ActivityCreateData>({
+        ...validActivityInput(foreignMunicipality.id),
+        title: fixtures.value('Atividade que o assessor precisa editar'),
+        responsible: [
+          { relationTo: 'campaignUser', value: advisor.id },
+          { relationTo: 'leadership', value: foreignLeadership.id },
+        ],
+      }),
+      overrideAccess: true,
+    })
+    fixtures.own('activity', activity.id)
+
+    // The advisor has no portfolio in the foreign municipality, so the
+    // leadership is outside their read scope — but they are responsible and
+    // re-submitting the intact list must not dead-end the save.
+    const updated = await payload.update({
+      collection: 'activity',
+      id: activity.id,
+      data: {
+        description: 'Ajuste do assessor responsável.',
+        responsible: [
+          { relationTo: 'campaignUser', value: advisor.id },
+          { relationTo: 'leadership', value: foreignLeadership.id },
+        ],
+      },
+      user: advisor,
+      overrideAccess: false,
+    })
+
+    expect(updated.description).toBe('Ajuste do assessor responsável.')
+    const persisted = await payload.findByID({
+      collection: 'activity',
+      id: activity.id,
+      depth: 0,
+      overrideAccess: true,
+    })
+    const responsibleIDs = (persisted.responsible ?? []).map((entry) => relationshipId(entry.value))
+    expect(responsibleIDs).toEqual(expect.arrayContaining([advisor.id, foreignLeadership.id]))
+  })
+
+  it('auto-includes the creating advisor as responsible', async () => {
    const fixtures = campaignFixtures()
    const advisor = await fixtures.createCampaignUser('advisor')
    const municipality = await fixtures.getMunicipality()
@ -338,7 +444,8 @@ describe('activity domain', () => {
    })
    fixtures.own('activity', activity.id)

-    expect(relationIds(activity.advisors)).toEqual([advisor.id])
+    const responsibleIDs = (activity.responsible ?? []).map((entry) => relationId(entry.value))
+    expect(responsibleIDs).toEqual([advisor.id])
    expect(relationId(activity.createdBy)).toBe(advisor.id)
  })

@ -537,7 +644,7 @@ describe('activity domain', () => {
    const contact = await fixtures.createContact()
    const municipality = await fixtures.getMunicipality()
    await fixtures.assignMunicipalityAdvisors(municipality, [advisor])
-    const leadership = await fixtures.createLeadership({
+    await fixtures.createLeadership({
      contact: contact.id,
      municipalities: [municipality.id],
      user: leaderAccount.id,
@ -549,8 +656,7 @@ describe('activity domain', () => {
      data: stub<ActivityCreateData>({
        ...validActivityInput(municipality.id),
        title: fixtures.value('Atividade Tarefas'),
-        advisors: [advisor.id],
-        leadership: leadership.id,
+        responsible: [{ relationTo: 'campaignUser', value: advisor.id }],
        tasks: [{ title: 'Levar faixas', done: false }],
      }),
      overrideAccess: true,
--- a/tests/unit/activityUi.unit.spec.ts
+++ b/tests/unit/activityUi.unit.spec.ts
@ -93,13 +93,11 @@ describe('buildActivityListWhere (tab → where matrix)', () => {
    })
  })

-  it('filters by title or responsible name when q is set', () => {
+  it('filters by title when q is set (C90 — responsible is polymorphic, title-only)', () => {
    const where = buildActivityListWhere({ page: 1, tab: 'proximos', q: 'Maria' }, NOW)
    expect(where).toEqual({
      and: [
-        {
-          or: [{ title: { contains: 'Maria' } }, { 'responsible.name': { contains: 'Maria' } }],
-        },
+        { title: { contains: 'Maria' } },
        { status: { equals: 'confirmado' } },
        { startAt: { greater_than_equal: NOW.toISOString() } },
      ],
--- a/tests/unit/codebaseConventions.unit.spec.ts
+++ b/tests/unit/codebaseConventions.unit.spec.ts
@ -383,6 +383,7 @@ describe('src/utilities top-level is pinned', () => {
    'activityLeadershipOptions.ts',
    'activityPageData.ts',
    'activityRelationOptions.ts',
+    'activityResponsibleSearch.ts',
    'activityUi.ts',
    'activityViewModels.ts',
    'advisorData.ts',
@ -598,7 +599,7 @@ describe('admin bypasses carry a justification comment', () => {
    ['src/utilities/access/municipalities.ts', 3],
    ['src/utilities/access/shared.ts', 2],
    ['src/utilities/access/webauthnCredentials.ts', 1],
-    ['src/collections/Activity.ts', 1],
+    ['src/collections/Activity.ts', 0],
    ['src/collections/CampaignDemand.ts', 1],
    ['src/collections/CampaignUser.ts', 4],
    ['src/collections/CampaignWebAuthnCredential.ts', 1],