60 lines
3.7 KiB
Markdown
60 lines
3.7 KiB
Markdown
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---
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kind: task
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slug: contextual-chat-authorization
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title: Bind chat to authorized project and supported object contexts
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plan_slug: workspace-communications
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epic_slug: workspace-chat
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status: blocked
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priority: P1
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tenant_id: global
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owner: unassigned
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cursor_todo_id: null
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updated_at: "2026-10-22"
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---
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# Task summary
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Extend the workspace-chat foundation to project and explicitly supported object contexts without widening private-context access.
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## Description
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Follow the [plan's context authorization contract](../Plan-workspace-communications.md). Projects are generic `objects` rows (`type = 'project'`), not a separate table. Existing types include space, task, document, whiteboard, group and form; enable only types with a verified read/write/delegate policy and usable entry point. `object_type_defs` does not automatically enable custom contexts. Neither `object_assignees`, parent links nor workspace ownership are ACLs.
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This is a bounded chat adapter/API/UI integration, not a general object-permissions rewrite. It is blocked on an authoritative context policy: current `objects` schema/router proves only tenant ownership. Keep private/unknown/policy-unavailable contexts disabled until that policy is supplied and tested; escalate the missing ACL prerequisite to the conductor rather than inventing one inside chat.
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## Subtasks
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- [ ] Resolve the explicit prerequisite: document the authoritative read/write/delegate policy API and which concrete object types it supports before enabling any object context.
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- [ ] Extend the foundation's context union to a tenant-validated object reference; generate a new migration with referential integrity and context indexes as needed. Context binding cannot be silently moved to broaden an audience.
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- [ ] Use workspace AND context AND channel checks for discovery, history, threads, writes, membership targets, mentions/counts, notifications, replay and live delivery; prevent channel membership from granting object access.
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- [ ] Add project/supported-object conversation entry points that resolve the same durable channel surface as workspace Chat, showing context without leaking inaccessible titles.
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- [ ] Test private same-workspace denial, unsupported types, archived/deleted contexts, ancestry-policy changes, revoked membership/subscriptions, and authorized access without duplicate histories.
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## Owner or assignee
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`unassigned`
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## Status
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`blocked` — workspace chat foundation and a verified object-level authorization/delegation policy must exist first. User kickoff approval does not waive this prerequisite.
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## Estimation
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`M` once the policy prerequisite is available.
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## Acceptance criteria
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- [ ] Project chat references actual `objects` records; no invented projects table or arbitrary context slug grants access.
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- [ ] Workspace membership, workspace admin role, object assignment, and channel membership independently cannot bypass private-context denial.
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- [ ] Public means public within the permitted context audience; private/direct require membership in addition.
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- [ ] Removed access immediately stops subsequent reads, replay, notifications and live payloads; client caches are invalidated.
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- [ ] Unsupported contexts fail closed; there is no fallback to workspace-public chat.
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- [ ] `pnpm lint && pnpm type-check && pnpm test` pass; run build for changed server entry points/exports.
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## Links to related Epic / Plan
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- Epic: [Workspace chat](./Epic-workspace-chat.md)
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- Plan: [Workspace communications](../Plan-workspace-communications.md)
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- Dependencies: [Persistence](./Task-chat-persistence.md), [Realtime](./Task-chat-realtime-delivery.md), [UI](./Task-chat-ui-and-navigation.md)
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- Agent integration: [Reviewed agent membership](../Epic-agent-participation/Task-agent-channel-membership.md)
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