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* feat(agents): agent invocation permission system (permission_mode + invocation targets) MUL-3963: split who may INVOKE an agent out of the overloaded visibility column into an explicit, extensible model on feature/composio-integration. - DB: agent.permission_mode (private|public_to) + agent_invocation_target table (workspace/member/team targets) + lossless backfill from visibility (migration 130). - canInvokeAgent: owner-only for private (NO admin bypass, NO A2A bypass); public_to honours the allow-list; A2A judged by the top-of-chain originator. - All trigger paths rewired: issue assign, comment @agent/@squad, chat, quick-create, autopilot, squad leader, child-done. - Agent API: permission_mode + invocation_targets on responses and create/update (owner-only writes); legacy visibility kept as a derived field so old clients never see a permission widening. - Composio: BuildTaskOverlay now FOLLOWS invocation permission and uses the agent OWNER connection (removed the originator==owner gate); front-end warns when a shared agent enables Composio apps. - CLI: --permission-mode / --public-to-workspace / --public-to-member (legacy --visibility still mapped). - Frontend: AccessPicker (Private / workspace / specific people / team soon), permission rules mirror canInvokeAgent, Composio warning banner. - Tests: migration backfill, admin cannot invoke others private, public_to workspace/member whitelist, A2A by originator, Composio overlay uses owner connection. Co-authored-by: multica-agent <github@multica.ai> * feat(agents): stackable, mixed public_to invocation targets (MUL-3963) Follow-up on PR #4844: public_to now supports selecting MULTIPLE, MIXED targets on one agent (e.g. Public to workspace + specific people + team), with canInvokeAgent admitting on ANY matching target (OR). - Frontend AccessPicker: reworked from a single exclusive kind into a stackable multi-select — an "Everyone in workspace" toggle, a member multi-select checklist, and a (disabled, v1) team placeholder can be combined freely. Emits the full union of selected targets; empty union collapses to Private. Existing team targets are preserved across saves. Added the access.public_group locale string (en/zh-Hans/ja/ko). - Backend already supported this (agent_invocation_target is multi-row per agent; create/update take a target ARRAY and batch-replace the whole allow-list; canInvokeAgent OR-matches). Added tests to lock it in: mixed member+team targets, overlapping-member batch replace, and workspace+member stacking then narrowing. Refs MUL-3963. Co-authored-by: multica-agent <github@multica.ai> * fix(agents): address review on invocation permission (MUL-3963) 张大彪 review on PR #4844 — three blockers + product ruling + nits: 1. Migration 130: drop the FK/cascade on agent_invocation_target (agent_id, created_by) per the Multica no-FK rule; relationships are now maintained in the app layer (matching MUL-3515 §4). Added DeleteAgentInvocationTargetsByArchivedRuntimeAgents and call it before DeleteArchivedAgentsByRuntime in all three runtime-delete paths (runtime.go x2, runtime_profile.go) so hard-deleting agents can't orphan target rows. 2. revokeAndRemoveMember: prune the leaving member's member-target grants (DeleteAgentInvocationTargetsByMember) in the same tx as the member-row delete, so a re-invited user can't reclaim a stale invocation grant. 3. Empty public_to is a phantom — parsePermissionInput now normalises a public_to with no resolvable targets to a single workspace target, so `--permission-mode public_to` alone (and any empty target array) means "public to workspace" instead of "shared but nobody can run it". Product ruling: the system/no-human-originator → workspace-target path in canInvokeAgent is a deliberate, documented exception (webhook/system/ workspace-wide automation); member/team targets still fail closed without a resolved originator. Documented in code + locked with a test. Nits: refreshed the stale "originator must be owner" comments — models.go (via migration 130 COMMENT ON COLUMN + sqlc regen for composio_toolkit_allowlist and originator_user_id) and agent-mcp-tab.tsx — to the owner-connection + invocation-permission rules. Tests: member remove/re-add regression, system workspace exception + member fail-closed, empty public_to → workspace (plus the earlier mixed/overlap/ batch-replace suite). Migration 130 applied to the test DB; Go handler/service/ composio suites green; views typecheck clean. Refs MUL-3963. Co-authored-by: multica-agent <github@multica.ai> * fix(agents): scope member invocation-target cleanup to one workspace (MUL-3963) 张大彪 3rd review — cross-workspace permission bug + comment nits: - DeleteAgentInvocationTargetsByMember was a GLOBAL delete by user id, so removing a user from workspace A also wiped their member-target grants on agents in workspace B. Scoped it to a single workspace by joining through agent.workspace_id; revokeAndRemoveMember now passes (workspaceID, userID). - Regression test TestRevokeMember_InvocationTargetCleanupIsWorkspaceScoped: same user allow-listed by agents in two workspaces; removal from one leaves the other workspace's target intact. - Nits: refreshed the remaining stale "originator == agent.owner_id" / "owner-vs-originator" comments — CreateRetryTask (agent.sql, regenerated), and the AgentResponse allowlist doc + ListAgents/UpdateAgent redaction rationale in agent.go — to the owner-connection + invocation-permission rule. Migration 130 applied to the test DB; Go handler/service/composio suites green; go vet clean. Refs MUL-3963. Co-authored-by: multica-agent <github@multica.ai> --------- Co-authored-by: multica-agent <github@multica.ai>