diff --git a/‎.changeset/21795-platform-objects-org-admin-actions-by-grade.md‎
Lines changed: 12 additions & 0 deletions b/‎.changeset/21795-platform-objects-org-admin-actions-by-grade.md‎
Lines changed: 12 additions & 0 deletions
diff --git a/‎.changeset/21795-spec-membership-reach-action-gate.md‎
Lines changed: 13 additions & 0 deletions b/‎.changeset/21795-spec-membership-reach-action-gate.md‎
Lines changed: 13 additions & 0 deletions
diff --git a/‎content/docs/references/data/object.mdx‎
Lines changed: 1 addition & 0 deletions b/‎content/docs/references/data/object.mdx‎
Lines changed: 1 addition & 0 deletions
diff --git a/‎content/docs/references/kernel/metadata-plugin.mdx‎
Lines changed: 1 addition & 0 deletions b/‎content/docs/references/kernel/metadata-plugin.mdx‎
Lines changed: 1 addition & 0 deletions
diff --git a/‎content/docs/references/ui/action.mdx‎
Lines changed: 14 additions & 0 deletions b/‎content/docs/references/ui/action.mdx‎
Lines changed: 14 additions & 0 deletions
diff --git a/‎packages/metadata-protocol/src/protocol.meta-types-degenerate-derivation.test.ts‎
Lines changed: 3 additions & 2 deletions b/‎packages/metadata-protocol/src/protocol.meta-types-degenerate-derivation.test.ts‎
Lines changed: 3 additions & 2 deletions
diff --git a/‎packages/platform-objects/src/apps/translations/en.metadata-forms.generated.ts‎
Lines changed: 4 additions & 0 deletions b/‎packages/platform-objects/src/apps/translations/en.metadata-forms.generated.ts‎
Lines changed: 4 additions & 0 deletions
diff --git a/‎packages/platform-objects/src/apps/translations/es-ES.metadata-forms.generated.ts‎
Lines changed: 4 additions & 0 deletions b/‎packages/platform-objects/src/apps/translations/es-ES.metadata-forms.generated.ts‎
Lines changed: 4 additions & 0 deletions
diff --git a/‎packages/platform-objects/src/apps/translations/ja-JP.metadata-forms.generated.ts‎
Lines changed: 4 additions & 0 deletions b/‎packages/platform-objects/src/apps/translations/ja-JP.metadata-forms.generated.ts‎
Lines changed: 4 additions & 0 deletions
diff --git a/‎packages/platform-objects/src/apps/translations/object-lifecycle-panel-echo-decisions.test.ts‎
Lines changed: 3 additions & 1 deletion b/‎packages/platform-objects/src/apps/translations/object-lifecycle-panel-echo-decisions.test.ts‎
Lines changed: 3 additions & 1 deletion
@@ -0,0 +1,12 @@
+---
+'@objectstack/platform-objects': patch
+---
+
+The organization's member, invitation and team actions are offered only to the membership grades the server admits. A plain member no longer sees "Invite User", "Change Role", "Remove Member", "Cancel Invitation", "Create Team" and the rest, each of which the server refused with 403.
+
+- `invite_user` (on the Users, Members and Invitations lists) and `resend_invitation`: owner, admin and delegated_admin.
+- `update_member_role`, `remove_member`, `cancel_invitation`, `create_team`, `update_team`, `remove_team`, `add_team_member` and `remove_team_member`: owner and admin.
+- `transfer_ownership`: the owner alone, on a non-owner row.
+- `add_member` is unchanged. Its door is platform-admin standing, not a membership grade.
+
+Each action declares `requiresMembershipReach` from `@objectstack/spec`, which is lowered into its `visible` predicate.
@@ -0,0 +1,13 @@
+---
+'@objectstack/spec': minor
+---
+
+An action can declare which organization membership grades it is offered to: `requiresMembershipReach` names a row of the new `MEMBERSHIP_REACH` table and is lowered at parse time into `visible`, the way `requiresFeature` is.
+
+Clause-②: yes (widening)
+
+- **`MEMBERSHIP_REACH`** (`@objectstack/spec/identity`) says which membership grades reach which better-auth organization endpoint. `invite_member` is reached by owner, admin and delegated_admin. `cancel_invitation`, `update_member_role`, `remove_member`, `create_team`, `update_team`, `remove_team`, `add_team_member` and `remove_team_member` are reached by owner and admin. `transfer_ownership` (setting the creator role on a member) is reached by the owner alone. The rows are read off better-auth's own access-control statements plus the `delegated_admin` registration, and plugin-auth pins them equal to the door. It is reach, not authority (ADR-0108 D1): a fourth fact beside the membership names, the administrative-grade rule and the identity projection, and merged into none of them. Also exported: `MEMBERSHIP_REACH_NAMES`, `membershipReachPredicate`, `lowerRequiresMembershipReach`, and the `MembershipReachEntry`, `MembershipReachName` and `MembershipReachStatement` types.
+- **`ActionSchema.requiresMembershipReach`** is optional and enum-checked against the table's row names. At parse time it becomes one `'<name>' in current_user.positions` term per grade, in the names `mapMembershipRole` projects them to (`org_owner`, `org_admin`, `delegated_admin`). The terms are AND-composed with an explicit `visible`, and the key is stripped from the parsed output. It composes ahead of `requiresFeature`, so a feature gate stays the last term. `visible: false`, a non-CEL or AST-only `visible`, and a blank `source` are refused at parse time, at the key.
+- It is UI courtesy, not authorization: the endpoint's own door stays the authority. The capability channel (`current_user.can`) is unchanged and carries no grade (ADR-0108).
+
+Nothing that parsed before is refused now, and an action without the key lowers exactly as before.
@@ -468,6 +468,7 @@ const result = ApiMethod.parse(data);
 | **resultDialog** | `{ title?: string \| Record<string, string>; description?: string \| Record<string, string>; acknowledge?: string \| Record<string, string>; format?: Enum<'qrcode' \| 'code-list' \| 'secret' \| 'text' \| 'json'>; … }` | optional | Render API response in a one-shot reveal dialog (suppresses successMessage when set). |
 | **visible** | `boolean \| string \| { dialect: Enum<'cel' \| 'cron' \| 'template'>; source: string; ast?: any; meta?: object }` | optional | Visibility predicate — `true`/`false` literal, CEL string, or `{dialect, source}` envelope. The action is offered when it evaluates TRUE. Omit = always visible. |
 | **requiresFeature** | `Enum<'twoFactor' \| 'organization' \| 'multiOrgEnabled' \| 'degradedTenancy' \| …>` | optional | Public auth feature flag gating this action; lowered into `visible` at parse time. |
+| **requiresMembershipReach** | `Enum<'invite_member' \| 'cancel_invitation' \| 'update_member_role' \| …>` | optional | Organization endpoint (a MEMBERSHIP_REACH row) whose membership-grade gate this action follows; lowered into `visible` over current_user.positions at parse time. |
 | **disabled** | `boolean \| string \| { dialect: Enum<'cel' \| 'cron' \| 'template'>; source: string; ast?: any; meta?: object }` | optional | Disabled predicate — `true`/`false` literal, CEL string, or `{dialect, source}` envelope. The action is shown but refused when it evaluates TRUE. Omit = never disabled. |
 | **requiredPermissions** | `string[]` | optional | [ADR-0066 D4] Capabilities required to invoke this action. Enforced with 403 on the platform action route (script/flow/modal + MCP) and mirrored as a UI hide; a `type: api` action pointed at a custom endpoint must re-check it there. |
 | **shortcut** | `never` | optional | [REMOVED] `action.shortcut` was removed in @objectstack/spec 17.0.0 (audit close-out) — it never triggered anything: no keydown listener feeds ActionEngine.getShortcuts(), and objectui's keyboard stack (useKeyboardShortcuts) is hand-registered and never consults action metadata. Delete the key. For a real shortcut, register the key in the Console keyboard stack and have its handler invoke the action by name. Run `os migrate meta --from 16` to list the mechanical edits for existing sources; apply them by hand. |
 
@@ -338,6 +338,7 @@ const result = MetadataBulkResultSchema.parse(data);
 | **resultDialog** | `{ title?: string \| Record<string, string>; description?: string \| Record<string, string>; acknowledge?: string \| Record<string, string>; format?: Enum<'qrcode' \| 'code-list' \| 'secret' \| 'text' \| 'json'>; … }` | optional | Render API response in a one-shot reveal dialog (suppresses successMessage when set). |
 | **visible** | `boolean \| string \| { dialect: Enum<'cel' \| 'cron' \| 'template'>; source: string; ast?: any; meta?: object }` | optional | Visibility predicate — `true`/`false` literal, CEL string, or `{dialect, source}` envelope. The action is offered when it evaluates TRUE. Omit = always visible. |
 | **requiresFeature** | `Enum<'twoFactor' \| 'organization' \| 'multiOrgEnabled' \| 'degradedTenancy' \| …>` | optional | Public auth feature flag gating this action; lowered into `visible` at parse time. |
+| **requiresMembershipReach** | `Enum<'invite_member' \| 'cancel_invitation' \| 'update_member_role' \| …>` | optional | Organization endpoint (a MEMBERSHIP_REACH row) whose membership-grade gate this action follows; lowered into `visible` over current_user.positions at parse time. |
 | **disabled** | `boolean \| string \| { dialect: Enum<'cel' \| 'cron' \| 'template'>; source: string; ast?: any; meta?: object }` | optional | Disabled predicate — `true`/`false` literal, CEL string, or `{dialect, source}` envelope. The action is shown but refused when it evaluates TRUE. Omit = never disabled. |
 | **requiredPermissions** | `string[]` | optional | [ADR-0066 D4] Capabilities required to invoke this action. Enforced with 403 on the platform action route (script/flow/modal + MCP) and mirrored as a UI hide; a `type: api` action pointed at a custom endpoint must re-check it there. |
 | **shortcut** | `never` | optional | [REMOVED] `action.shortcut` was removed in @objectstack/spec 17.0.0 (audit close-out) — it never triggered anything: no keydown listener feeds ActionEngine.getShortcuts(), and objectui's keyboard stack (useKeyboardShortcuts) is hand-registered and never consults action metadata. Delete the key. For a real shortcut, register the key in the Console keyboard stack and have its handler invoke the action by name. Run `os migrate meta --from 16` to list the mechanical edits for existing sources; apply them by hand. |
 
@@ -55,6 +55,7 @@ const result = ActionSchema.parse(data);
 | **resultDialog** | `{ title?: string \| Record<string, string>; description?: string \| Record<string, string>; acknowledge?: string \| Record<string, string>; format?: Enum<'qrcode' \| 'code-list' \| 'secret' \| 'text' \| 'json'>; … }` | optional | Render API response in a one-shot reveal dialog (suppresses successMessage when set). |
 | **visible** | `boolean \| string \| { dialect: Enum<'cel' \| 'cron' \| 'template'>; source: string; ast?: any; meta?: object }` | optional | Visibility predicate — `true`/`false` literal, CEL string, or `{dialect, source}` envelope. The action is offered when it evaluates TRUE. Omit = always visible. |
 | **requiresFeature** | `Enum<'twoFactor' \| 'organization' \| 'multiOrgEnabled' \| 'degradedTenancy' \| 'oidcProvider' \| 'sso' \| 'ssoEnforced' \| 'deviceAuthorization' \| 'admin' \| 'phoneNumber' \| 'phoneNumberOtp'>` | optional | Public auth feature flag gating this action; lowered into `visible` at parse time. |
+| **requiresMembershipReach** | `Enum<'invite_member' \| 'cancel_invitation' \| 'update_member_role' \| 'transfer_ownership' \| 'remove_member' \| 'create_team' \| 'update_team' \| 'remove_team' \| … +2 more>` | optional | Organization endpoint (a MEMBERSHIP_REACH row) whose membership-grade gate this action follows; lowered into `visible` over current_user.positions at parse time. |
 | **disabled** | `boolean \| string \| { dialect: Enum<'cel' \| 'cron' \| 'template'>; source: string; ast?: any; meta?: object }` | optional | Disabled predicate — `true`/`false` literal, CEL string, or `{dialect, source}` envelope. The action is shown but refused when it evaluates TRUE. Omit = never disabled. |
 | **requiredPermissions** | `string[]` | optional | [ADR-0066 D4] Capabilities required to invoke this action. Enforced with 403 on the platform action route (script/flow/modal + MCP) and mirrored as a UI hide; a `type: api` action pointed at a custom endpoint must re-check it there. |
 | **shortcut** | `never` | optional | [REMOVED] `action.shortcut` was removed in @objectstack/spec 17.0.0 (audit close-out) — it never triggered anything: no keydown listener feeds ActionEngine.getShortcuts(), and objectui's keyboard stack (useKeyboardShortcuts) is hand-registered and never consults action metadata. Delete the key. For a real shortcut, register the key in the Console keyboard stack and have its handler invoke the action by name. Run `os migrate meta --from 16` to list the mechanical edits for existing sources; apply them by hand. |
@@ -78,6 +79,19 @@ const result = ActionSchema.parse(data);
 | **_packageVersion** | `string` | optional | Owning package version. |
 | **_lockDocsUrl** | `string` | optional | Optional documentation link surfaced next to _lockReason. |
 
+### Allowed Values: `Action.requiresMembershipReach`
+
+* `invite_member`
+* `cancel_invitation`
+* `update_member_role`
+* `transfer_ownership`
+* `remove_member`
+* `create_team`
+* `update_team`
+* `remove_team`
+* `add_team_member`
+* `remove_team_member`
+
 ### Nested Shape: `Action.body[language='expression']`
 
 L1 expression body — pure formula, no IO
 
@@ -247,10 +247,11 @@ describe('#17501 — /meta/types serves a real schema for `action`, and moves no
         // [#21095] 48 → 49: `outcomeMessages` joined the accepted set, and it
         // is named in the sample below so the served schema is held to
         // carrying it, not merely to having one more key than before.
-        expect(Object.keys(properties).length + retiredTopLevelCount('action')).toBe(49);
+        // [#21795] 49 → 50: `requiresMembershipReach` joined the accepted set.
+        expect(Object.keys(properties).length + retiredTopLevelCount('action')).toBe(50);
         // A sample an author would actually address, and the one #17500's
         // repeater titles need a node to sit on.
-        for (const key of ['name', 'label', 'objectName', 'type', 'params', 'locations', 'outcomeMessages']) {
+        for (const key of ['name', 'label', 'objectName', 'type', 'params', 'locations', 'outcomeMessages', 'requiresMembershipReach']) {
             expect(Object.keys(properties)).toContain(key);
         }
     });
 
@@ -1772,6 +1772,10 @@ export const enMetadataForms: NonNullable<TranslationData['metadataForms']> = {
         label: "Requires Feature",
         helpText: "Public auth feature flag gating this action. It is lowered into the `visible` predicate at parse time and stripped from the output, so no downstream consumer ever sees the key."
       },
+      requiresMembershipReach: {
+        label: "Requires Membership Reach",
+        helpText: "The organization endpoint this action calls, so it is offered only to members whose grade reaches that endpoint. It is lowered into the `visible` predicate at parse time and stripped from the output, so no downstream consumer ever sees the key."
+      },
       requiredPermissions: {
         label: "Required Permissions",
         helpText: "Capabilities (permission-set systemPermissions) a caller must hold — every one listed — to invoke this action (ADR-0066 D4). The platform action route refuses anyone else with 403 (script, flow and modal actions, and the MCP/AI path), and the button is hidden from them. A type api action calls its endpoint directly, so that endpoint must re-check them."
 
@@ -1772,6 +1772,10 @@ export const esESMetadataForms: NonNullable<TranslationData['metadataForms']> =
         label: "Requiere función",
         helpText: "Indicador público de función de autenticación que condiciona esta acción. Se traslada al predicado `visible` durante el análisis y se elimina de la salida, así que ningún consumidor posterior llega a ver la clave."
       },
+      requiresMembershipReach: {
+        label: "Requiere alcance de membresía",
+        helpText: "El endpoint de la organización al que llama esta acción, de modo que solo se ofrece a los miembros cuyo grado alcanza ese endpoint. Se traslada al predicado `visible` durante el análisis y se elimina de la salida, así que ningún consumidor posterior llega a ver la clave."
+      },
       requiredPermissions: {
         label: "Permisos requeridos",
         helpText: "Capacidades (systemPermissions de conjuntos de permisos) que quien llama debe tener, todas las enumeradas, para invocar esta acción (ADR-0066 D4). La ruta de acciones de la plataforma rechaza a cualquier otro con 403 (acciones script, flow y modal, y la vía MCP/IA), y se le oculta el botón. Una acción de type api llama directamente a su endpoint, así que ese endpoint debe volver a comprobarlas."
 
@@ -1772,6 +1772,10 @@ export const jaJPMetadataForms: NonNullable<TranslationData['metadataForms']> =
         label: "必要な認証機能",
         helpText: "このアクションの表示可否を決める公開認証機能フラグ。解析時に `visible` の述語へ畳み込まれ、出力からは取り除かれるため、下流の利用側がこのキーを見ることはありません。"
       },
+      requiresMembershipReach: {
+        label: "必要なメンバーシップ到達先",
+        helpText: "このアクションが呼び出す組織エンドポイント。メンバーシップのグレードがそのエンドポイントに到達できるメンバーにだけ表示されます。解析時に `visible` の述語へ畳み込まれ、出力からは取り除かれるため、下流の利用側がこのキーを見ることはありません。"
+      },
       requiredPermissions: {
         label: "必要な権限",
         helpText: "このアクションを実行するために呼び出し元が保持すべき機能（権限セットの systemPermissions）。列挙したすべてが必要です（ADR-0066 D4）。それ以外の呼び出し元はプラットフォームのアクションルートで 403 として拒否され（script、flow、modal アクションと MCP/AI 経路）、ボタンも表示されません。type が api のアクションはエンドポイントを直接呼び出すため、そのエンドポイントで改めてチェックする必要があります。"
 
@@ -1169,7 +1169,9 @@ describe('#19403 round 10 — the verdicts, on the live bundles', () => {
       // taking its label — authored in all three locales — out of the catalog.
       // 660 since #21765: the object form offers `imageField` beside
       // `nameField` — one new row label, authored in all three locales.
-      expect(translated.length, `${locale} positive control`).toBe(660);
+      // 661 since the action form offers `requiresMembershipReach` beside
+      // `requiresFeature` — one new row label, authored in all three locales.
+      expect(translated.length, `${locale} positive control`).toBe(661);
     }
     // ⭐ DARK — the blindness, executable. On a synthetic two-locale catalog the
     // all-three predicate returns 0 while the per-locale one returns 1, so the