diff --git a/src/configuration/store.ts b/src/configuration/store.ts
index e173a23c..26cd3665 100644
--- a/src/configuration/store.ts
+++ b/src/configuration/store.ts
@@ -1,5 +1,5 @@
 import { parseTriggerDocument } from "../triggers/configuration/index.js";
-import { dump } from "js-yaml";
+import { dump, load } from "js-yaml";
 import { z } from "zod";
 import {
   compiledConfigurationHash,
@@ -318,6 +318,9 @@ export function parseProjectConfiguration(
   if (adapter.success) {
     if (revision.rawYaml === null)
       throw new Error("Trigger revision is missing its authored document");
+    // Preserved legacy workflows share the adapter but retain their original run policy.
+    const legacy = z.object({ legacy_multistep: z.object({}) }).safeParse(load(revision.rawYaml));
+    if (legacy.success) return toProjectConfiguration(configuration);
     const policy = parseTriggerDocument(revision.rawYaml).run.continuation;
     return toProjectConfiguration({
       ...configuration,
diff --git a/src/provider-applications/internal/runtime-owner.test.ts b/src/provider-applications/internal/runtime-owner.test.ts
index 20012b00..90d1b28e 100644
--- a/src/provider-applications/internal/runtime-owner.test.ts
+++ b/src/provider-applications/internal/runtime-owner.test.ts
@@ -12,8 +12,78 @@ import type {
   SlackProviderApplicationConfiguration,
 } from "../index.js";
 import { DynamicProviderRuntime } from "./runtime-owner.js";
+import { OutputExecutorRegistry, replyOutputTool } from "../../execution-capabilities/outputs.js";
+import { createGitHubReplyExecutor, githubReplyAvailable } from "../../triggers/github/reply.js";
 
 describe("dynamic provider runtime", () => {
+  it("exposes and delivers GitHub replies through the hosted provider registration", async () => {
+    const comments: unknown[] = [];
+    const runtime = new DynamicProviderRuntime({
+      database: createMemoryDatabase(),
+      auth: testAuth(),
+      applicationBaseUrl: "https://hub.test",
+      registrationFactory: () => ({
+        ...connectionRegistration("github", "A1"),
+        outputs: [
+          {
+            type: "github.reply",
+            tool: replyOutputTool,
+            available: githubReplyAvailable,
+            execute: createGitHubReplyExecutor({
+              client: {
+                createIssueComment: async (comment) => {
+                  comments.push(comment);
+                },
+              },
+            }),
+          },
+        ],
+      }),
+    });
+    const registry = new OutputExecutorRegistry();
+    for (const registration of runtime.registrations()) {
+      for (const output of registration.outputs) registry.register(output);
+    }
+    const candidate = await runtime.prepare(
+      "github",
+      providerConfiguration("github", "A1"),
+      "https://hub.test",
+      providerIdentity("github", "A1"),
+      1,
+    );
+    await candidate.start();
+    candidate.publish();
+    const outputContext = {
+      provider: "github",
+      target: { installationId: 42, repository: "acme/repo" },
+      event: { github: { item: { number: 7 } } },
+    };
+    const grants = [{ type: "github.reply", required: false }];
+    assert.equal(registry.materialize(grants, outputContext).length, 1);
+    assert.equal(
+      registry.materialize(grants, {
+        ...outputContext,
+        event: { github: { item: null } },
+      }).length,
+      0,
+    );
+    await registry.execute({
+      agentExecutionId: "execution-1",
+      toolType: "github.reply",
+      args: { content: "remembered" },
+      outputContext,
+    });
+    assert.deepEqual(comments, [
+      {
+        installationId: 42,
+        owner: "acme",
+        repo: "repo",
+        issueNumber: 7,
+        body: "remembered",
+      },
+    ]);
+  });
+
   it.each([
     "github.issues",
     "github.issue_comment",
diff --git a/src/provider-applications/internal/runtime-owner.ts b/src/provider-applications/internal/runtime-owner.ts
index 33f0e904..61bb42c5 100644
--- a/src/provider-applications/internal/runtime-owner.ts
+++ b/src/provider-applications/internal/runtime-owner.ts
@@ -2,7 +2,7 @@ import type { AuthServer } from "../../auth/server.js";
 import { createHash } from "node:crypto";
 import type { GitHubConfigurationProvider } from "../../configuration/github-sync.js";
 import type { Database } from "../../db/types.js";
-import { outputContextProvider, replyOutputTool } from "../../execution-capabilities/outputs.js";
+import { replyOutputTool } from "../../execution-capabilities/outputs.js";
 import { logger } from "../../logger.js";
 import { reportFailure } from "../../failures/index.js";
 import { createDiscordRegistration } from "../../providers/discord/index.js";
@@ -399,26 +399,28 @@ export class DynamicProviderRuntime implements ProviderRuntimeOwner {
         },
       ],
       sources: [source],
-      outputs:
-        provider === "github"
-          ? []
-          : [
-              {
-                type: `${provider}.reply`,
-                tool: replyOutputTool,
-                available: outputContextProvider(provider),
-                execute: (input) => {
-                  const active = slot.active;
-                  const output = active?.registration.outputs.find(
-                    (candidate) => candidate.type === `${provider}.reply`,
-                  );
-                  if (active === undefined || output === undefined) {
-                    throw unavailable(`${provider}_output_unavailable`);
-                  }
-                  return this.withLease(active, () => output.execute(input));
-                },
-              },
-            ],
+      outputs: [
+        {
+          type: `${provider}.reply`,
+          tool: replyOutputTool,
+          available: (context) => {
+            const output = slot.active?.registration.outputs.find(
+              (candidate) => candidate.type === `${provider}.reply`,
+            );
+            return output !== undefined && (output.available?.(context) ?? true);
+          },
+          execute: (input) => {
+            const active = slot.active;
+            const output = active?.registration.outputs.find(
+              (candidate) => candidate.type === `${provider}.reply`,
+            );
+            if (active === undefined || output === undefined) {
+              throw unavailable(`${provider}_output_unavailable`);
+            }
+            return this.withLease(active, () => output.execute(input));
+          },
+        },
+      ],
       requests:
         provider === "discord"
           ? []
diff --git a/src/triggers/configuration/index.test.ts b/src/triggers/configuration/index.test.ts
index 30fe5100..b8416416 100644
--- a/src/triggers/configuration/index.test.ts
+++ b/src/triggers/configuration/index.test.ts
@@ -176,4 +176,12 @@ it("applies the continuation default when reading old trigger revisions without
   assert.equal(stored.triggers[0]?.steps[0]?.continuation, undefined);
   const legacy = parseProjectConfiguration({ ...revision, sourceEvidence: { kind: "manual" } });
   assert.equal(legacy.triggers[0]?.steps[0]?.continuation, undefined);
+  const migratedLegacy = parseProjectConfiguration({
+    ...revision,
+    rawYaml: JSON.stringify({
+      name: "preserved-workflow",
+      legacy_multistep: { trigger: stored.triggers[0], environments: stored.environments },
+    }),
+  });
+  assert.deepEqual(migratedLegacy, legacy);
 });