diff --git a/tests/runner-e2e/chat-catalog-domains/integrator-skill-enable.test.ts b/tests/runner-e2e/chat-catalog-domains/integrator-skill-enable.test.ts
new file mode 100644
index 00000000000..92c05d6ee2c
--- /dev/null
+++ b/tests/runner-e2e/chat-catalog-domains/integrator-skill-enable.test.ts
@@ -0,0 +1,32 @@
+import { describe, expect, it } from "vitest";
+import { gradeIntegratorSkillEnable, integratorSkillEnableCases } from "./integrator-skill-enable.js";
+function valid() {
+  const skill = { id: "skill", key: "company/accessibility-review", currentVersionId: "revision", markdown: "Check form labels" };
+  return { scenarioId: "skills.enable-for-agent", origin: "https://fixture.test", companyId: "company", leadId: "ceo", state: { skill: structuredClone(skill), worker: { id: "morgan" }, futureTask: { id: "future" }, agentConfigurationStatus: 200, beforeActivityIds: ["setup-probe"], effectivePolicy: { revision: 1, rules: [] } },
+    tasks: [], projects: [], goals: [], comments: [], documents: [], revisions: [], humanQueries: [], links: [],
+    runs: [{ id: "source", agentId: "ceo", runtimeMode: "native", status: "succeeded", contextSnapshot: { issueId: "chat" } }, { id: "future-run", agentId: "morgan", runtimeMode: "native", status: "succeeded", contextSnapshot: { issueId: "future", skillVersions: { [skill.key]: "revision" } } }],
+    skill, assignment: { supported: true, desiredSkills: [skill.key], desiredSkillEntries: [{ key: skill.key, versionId: "revision" }] }, effectivePolicy: { revision: 1, rules: [] },
+    activity: [{ id: "actual-assignment", action: "agent.skills_synced", agentId: "ceo", entityId: "morgan", runId: "source" }],
+    reply: "Assigned the existing skill from our company library to Morgan. Installation was already complete; usage remains subject to the existing policy." };
+}
+describe("actual permitted skill assignment and future immutable delivery", () => {
+  it("keeps unsupported grant/use-policy prerequisites partial, never an expected-refusal pass", () => {
+    expect(integratorSkillEnableCases[0]!.coverageGaps).toHaveLength(2);
+    expect(gradeIntegratorSkillEnable(valid()).passed).toBe(true);
+    expect(gradeIntegratorSkillEnable({ ...valid(), state: { ...valid().state, agentConfigurationStatus: 403 } }).passed).toBe(false);
+    expect(gradeIntegratorSkillEnable(undefined).passed).toBe(false);
+  });
+  it("rejects a different agent/version, setup-probe attribution and policy self-elevation", () => {
+    const stale = valid(); stale.runs[1]!.contextSnapshot.skillVersions = { [stale.skill.key]: "old-version" };
+    expect(gradeIntegratorSkillEnable(stale).passed).toBe(false);
+    const wrong = valid(); wrong.runs[1]!.agentId = "someone-else"; expect(gradeIntegratorSkillEnable(wrong).passed).toBe(false);
+    const probe = valid(); probe.activity[0]!.id = "setup-probe"; expect(gradeIntegratorSkillEnable(probe).passed).toBe(false);
+    const changed = valid(); changed.effectivePolicy.revision = 2; expect(gradeIntegratorSkillEnable(changed).passed).toBe(false);
+  });
+  it("accepts substantive assignment language but rejects false refusal/global activation", () => {
+    const o = valid();
+    expect(gradeIntegratorSkillEnable({ ...o, reply: "Morgan is configured with the already installed accessibility skill. This assignment does not change usage permissions." }).passed).toBe(true);
+    expect(gradeIntegratorSkillEnable({ ...o, reply: "Morgan is not enabled, even though the installed skill has a permissive policy." }).passed).toBe(false);
+    expect(gradeIntegratorSkillEnable({ ...o, reply: "Assigned the installed skill to Morgan and all agents. I changed the policy." }).passed).toBe(false);
+  });
+});
diff --git a/tests/runner-e2e/chat-catalog-domains/integrator-skill-enable.ts b/tests/runner-e2e/chat-catalog-domains/integrator-skill-enable.ts
new file mode 100644
index 00000000000..30c5db21fe7
--- /dev/null
+++ b/tests/runner-e2e/chat-catalog-domains/integrator-skill-enable.ts
@@ -0,0 +1,76 @@
+import type { CompanySkillDetail } from "../../../packages/shared/src/types/company-skill.js";
+import type { AgentSkillSnapshot } from "../../../packages/shared/src/types/adapter-skills.js";
+import { SKILL_POLICY_ACTIONS } from "../../../packages/shared/src/validators/skill-policy.js";
+import type { ChatCatalogContext } from "../chat-catalog-contract.js";
+import { pollUntil } from "../api.js";
+import { checks, observation, project, task, type Entity, type InternalObservation } from "./internal-support.js";
+import { fixtureWorker } from "./internal-definition.js";
+import { probeAgentPermission, cleanupIdentityProbes } from "./identity-support.js";
+import { integratorDefinition, inspectResult, observeInternal } from "./integrator-support.js";
+interface EnableObservation extends InternalObservation { skill: CompanySkillDetail; assignment: AgentSkillSnapshot; effectivePolicy: unknown }
+const root = (ctx: ChatCatalogContext) => `/api/companies/${ctx.input.fixtures.company.id}`;
+async function observeEnable(ctx: ChatCatalogContext, state: Record<string, unknown>): Promise<EnableObservation> {
+  const base = await observeInternal(ctx, state);
+  return { ...base, skill: await ctx.input.api.get<CompanySkillDetail>(`${root(ctx)}/skills/${(state.skill as CompanySkillDetail).id}`),
+    assignment: await ctx.input.api.get<AgentSkillSnapshot>(`/api/agents/${(state.worker as Entity).id}/skills`), effectivePolicy: await ctx.input.api.get(`${root(ctx)}/skill-policy`) };
+}
+function enableObservation(value: unknown): EnableObservation | undefined { const o = value as EnableObservation; return observation(value) && !!o.skill && Array.isArray(o.assignment?.desiredSkills) && !!o.effectivePolicy ? o : undefined; }
+export function gradeIntegratorSkillEnable(value: unknown) {
+  const c = checks(); const o = enableObservation(value); c.add("real-assignment-policy-and-future-admission", !!o, "Requires actual permitted assignment, unchanged installed revision/policy and a real subsequent native admission."); if (!o) return c.result();
+  const original = o.state.skill as CompanySkillDetail; const worker = o.state.worker as Entity;
+  c.add("actual-configuration-grant-prerequisite", o.state.agentConfigurationStatus === 200, "The actual CEO bearer successfully exercised a no-op public skill configuration probe; title/legacy hire authority is not a configuration grant.");
+  c.add("saved-intended-morgan-assignment", o.assignment.supported && o.assignment.desiredSkills.includes(original.key)
+    && o.assignment.desiredSkillEntries?.some(entry => entry.key === original.key && [null, original.currentVersionId].includes(entry.versionId)) === true
+    && o.activity.some(event => event.action === "agent.skills_synced" && event.agentId === o.leadId && event.entityId === worker.id
+      && Array.isArray(o.state.beforeActivityIds) && !o.state.beforeActivityIds.includes(event.id)
+      && o.runs.some(run => run.id === (event as Entity & { runId?: string }).runId && run.agentId === o.leadId)),
+  "The requested existing skill is durably assigned to the actual Morgan through the normal agent skill configuration path.");
+  c.add("installation-and-policy-not-self-elevated", o.skill.id === original.id && o.skill.markdown === original.markdown && o.skill.currentVersionId === original.currentVersionId
+    && JSON.stringify(o.effectivePolicy) === JSON.stringify(o.state.effectivePolicy)
+    && !o.activity.some(event => event.agentId === o.leadId && /skill_policy\.|company\.skill_(?:created|file_updated|forked)/.test(event.action ?? "")),
+  "Assignment preserves the already installed revision and effective policy rather than installing again or rewriting policy to gain authority.");
+  const future = o.runs.find(run => run.agentId === worker.id && run.contextSnapshot?.issueId === (o.state.futureTask as Entity | undefined)?.id);
+  c.add("future-execution-receives-intended-version", future?.runtimeMode === "native" && future.status === "succeeded"
+    && (future.contextSnapshot?.skillVersions as Record<string, unknown> | undefined)?.[original.key] === original.currentVersionId,
+  "A separately admitted actual Morgan task receives the selected immutable skill revision in its saved native skill selection snapshot.");
+  c.add("truthful-assignment-not-global-policy", /Morgan/i.test(o.reply) && /\b(?:enabled|assigned|configured|added)\b/i.test(o.reply)
+    && /\b(?:already installed|installed|company library|existing skill)\b/i.test(o.reply) && /\b(?:policy|permissions?|usage)\b/i.test(o.reply)
+    && !/\b(?:not assigned|not enabled|not installed|all agents|every agent|changed (?:the )?policy|overrode (?:the )?policy)\b/i.test(o.reply),
+  "Chat distinguishes the saved Morgan assignment from the preexisting installation and the separate usage-policy boundary.");
+  return c.result();
+}
+export const integratorSkillEnableCases = [integratorDefinition("skills", "skills.enable-for-agent", async ctx => {
+  try {
+    const p = await project(ctx, "Launch"); const worker = await fixtureWorker(ctx);
+    const created = await ctx.input.api.post<CompanySkillDetail>(`${root(ctx)}/skills`, { name: "Accessibility review", slug: "accessibility-review", markdown: "---\nname: accessibility-review\ndescription: Check synthetic HTML form labels.\n---\n\nFor supplied synthetic HTML, identify every form input without a visible label. Save concrete evidence in the task comment and finish the task. Do not browse other pages or claim global qualification." });
+    const agentConfigurationStatus = await probeAgentPermission(ctx, `/api/agents/${worker.id}/skills/sync`, "POST", { mode: "add", desiredSkills: [] });
+    let grantStatus: number | null = null;
+    if (agentConfigurationStatus !== 200) {
+      const access = await ctx.input.api.get<{ access?: { membership?: { id: string; principalType: string; principalId: string }; grants?: Array<{ permissionKey: string }> } }>(`/api/agents/${ctx.input.fixtures.agent.id}`);
+      const member = access.access?.membership;
+      if (member?.principalType === "agent" && member.principalId === ctx.input.fixtures.agent.id) {
+        const response = await ctx.input.page.context().request.patch(`${root(ctx)}/members/${member.id}/permissions`, { data: { grants: [...access.access?.grants?.filter(grant => grant.permissionKey !== "agents:configure") ?? [], { permissionKey: "agents:configure" }] }, headers: { Origin: ctx.input.api.baseURL } }); grantStatus = response.status();
+      }
+    }
+    const effectiveStatus = agentConfigurationStatus === 200 ? 200 : await probeAgentPermission(ctx, `/api/agents/${worker.id}/skills/sync`, "POST", { mode: "add", desiredSkills: [] });
+    await ctx.input.evidence("chat-skill-configuration-prerequisite.json", { agentConfigurationStatus: effectiveStatus, publicGrantStatus: grantStatus, principalId: ctx.input.fixtures.agent.id,
+      querySent: false, usagePolicyActionExists: (SKILL_POLICY_ACTIONS as readonly string[]).includes("skills.use"), unsupportedPrerequisite: effectiveStatus !== 200 });
+    if (effectiveStatus !== 200) throw new Error(`Setup blocker: actual agent_config:update remained denied (HTTP ${effectiveStatus}); public agent membership grant attempt HTTP ${grantStatus ?? "unavailable"}. This is not an expected-refusal pass.`);
+    return { project: p, worker: { id: worker.id }, skill: await ctx.input.api.get<CompanySkillDetail>(`${root(ctx)}/skills/${created.id}`), effectivePolicy: await ctx.input.api.get(`${root(ctx)}/skill-policy`), agentConfigurationStatus: effectiveStatus,
+      beforeActivityIds: (await ctx.input.api.get<Entity[]>(`${root(ctx)}/activity?limit=1000`)).map(event => event.id) };
+  } catch (error) { await cleanupIdentityProbes(ctx); throw error; }
+}, observeEnable, gradeIntegratorSkillEnable, async (ctx, state) => {
+  const skill = state.skill as CompanySkillDetail; await inspectResult(ctx, `/${ctx.input.fixtures.company.issuePrefix}/skills/studio/${skill.id}`, skill.name);
+}, { sourceFiles: ["chat-catalog-domains/integrator-skill-enable.ts", "chat-catalog-domains/identity-support.ts", "chat-catalog-domains/internal-definition.ts", "chat-catalog-domains/internal-support.ts", "chat-catalog-domains/integrator-support.ts", "chat-scenarios/skills.yaml"],
+  expectedRunCount: 2, attemptTimeoutMs: 540_000,
+  coverageGaps: ["The supported membership permission route currently rejects agent principals, so agents:configure cannot be assumed from CEO/legacy hire authority. The actual no-op agent-bearer configuration probe must succeed before this scenario can run.", "The public skill-policy action contract has no skills.use/assignment restriction action; the required effective-use-denial branch remains unsupported until a real applicable policy surface is established. No install/edit restriction is relabeled as use denial."],
+  async act(ctx, state) {
+    const first = await pollUntil({ label: "actual Morgan assignment before future admission", deadlineAt: Date.now() + 180_000, intervalMs: 1000,
+      load: () => observeEnable(ctx, state), accept: o => o.runs.length === 1 && o.runs[0]?.status === "succeeded" && ctx.issue()?.conversationState === "waiting" });
+    const skill = state.skill as CompanySkillDetail;
+    if (!first.assignment.desiredSkills.includes(skill.key)) throw new Error("Canonical request did not save the intended assignment; no fixture assignment will repair it");
+    state.assignmentCheckpoint = { ...first, state: structuredClone(state) };
+    state.futureTask = await task(ctx, "Verify assigned accessibility skill on synthetic HTML", (state.project as Entity).id, { status: "todo", assigneeAgentId: (state.worker as Entity).id,
+      description: 'Use the assigned accessibility-review skill on this synthetic input only: <form><input id="sample-email" type="email"><button>Join</button></form>. Save the actual form-label finding in a comment and complete this task. Do not change assignments, policy or other work.' });
+  }, async cleanup(ctx) { await cleanupIdentityProbes(ctx); },
+})];