diff --git a/apps/web/src/app/tools/send/send-access/authentication-flow.md b/apps/web/src/app/tools/send/send-access/authentication-flow.md
index 7fa253af3bb..f39b43fcd41 100644
--- a/apps/web/src/app/tools/send/send-access/authentication-flow.md
+++ b/apps/web/src/app/tools/send/send-access/authentication-flow.md
@@ -9,7 +9,7 @@ Anyone can access a public send. The token endpoint automatically issues a token
 ```mermaid
 sequenceDiagram
     participant Visitor
-    participant TryAccess as try-access.component
+    participant TryAccess as try-send-access.guard
     participant SendToken as send-token API
     participant ViewContent as view-content.component
     participant SendAccess as send-access API
@@ -34,7 +34,7 @@ Password protected sends redirect to a password challenge prompt.
 ```mermaid
 sequenceDiagram
     participant Visitor
-    participant TryAccess as try-access.component
+    participant TryAccess as try-send-access.guard
     participant PasswordAuth as password-authentication.component
     participant SendToken as send-token API
     participant ViewContent as view-content.component
@@ -68,7 +68,7 @@ Visiting the view page without a token redirects to a try-access flow, above.
 sequenceDiagram
     participant Visitor
     participant ViewContent as view-content.component
-    participant TryAccess as try-access.component
+    participant TryAccess as try-send-access.guard
 
     Visitor->>ViewContent: Navigate to send URL (with id and key)
     ViewContent->>TryAccess: Redirect to try-access (with id and key)
diff --git a/apps/web/src/app/tools/send/send-access/authentication.prompts.md b/apps/web/src/app/tools/send/send-access/authentication.prompts.md
new file mode 100644
index 00000000000..aadd837d862
--- /dev/null
+++ b/apps/web/src/app/tools/send/send-access/authentication.prompts.md
@@ -0,0 +1,34 @@
+# Documentation prompts
+
+The following prompts were used with Claude 4 - Sonnet to write send documentation.
+
+## Authentication Flow Diagrams
+
+Turn a list of steps into a sequence diagram.
+
+```
+Create a mermaid sequence diagram for the Bitwarden Send protocol authentication flow. Use these components:
+
+**Components:**
+- `try-access.component` - Entry point that attempts to access a send
+- `password-authentication.component` - Handles password-based authentication
+- `view-content.component` - Displays the send content
+- `send-token API` - Server endpoint that issues security tokens
+
+**Flow Steps:**
+1. [Visitor navigates to try-access.]
+2. [try-access requests anonymous access from the send-token API]
+3. [send-token service replies with 200 and a token.]
+4. [try-access redirects to view-content with the token.]
+5. [view-content requests the send content from the send-access API with the token.]
+6. [the send-access API returns the send content]
+[ADD MORE STEPS AS NEEDED]
+
+**Requirements:**
+- Use clear, descriptive labels for each interaction
+- Include HTTP status codes where relevant
+- Show conditional logic with alt/opt blocks for decision points
+- Use proper mermaid sequence diagram syntax
+- Generate ONLY the mermaid code block, no additional explanation
+- Follow the exact component names provided above
+```
diff --git a/apps/web/src/app/tools/send/send-access/send-access-memory.ts b/apps/web/src/app/tools/send/send-access/send-access-memory.ts
new file mode 100644
index 00000000000..db0d70b0273
--- /dev/null
+++ b/apps/web/src/app/tools/send/send-access/send-access-memory.ts
@@ -0,0 +1,32 @@
+import { KeyDefinition, SEND_ACCESS_AUTH_MEMORY } from "@bitwarden/common/platform/state";
+import { SendAccessResponse } from "@bitwarden/common/tools/send/models/response/send-access.response";
+
+export type SendContext = {
+  id: string;
+  key: string;
+};
+
+export function isSendContext(value: unknown): value is SendContext {
+  return !!value && typeof value === "object" && "id" in value && "key" in value;
+}
+
+export const SEND_CONTEXT_KEY = new KeyDefinition<SendContext | null>(
+  SEND_ACCESS_AUTH_MEMORY,
+  "sendContext",
+  {
+    deserializer: (data) => data,
+  },
+);
+
+/** When send authentication succeeds, this stores the result so that
+ *  multiple access attempts don't accrue due to the send workflow.
+ */
+// FIXME: replace this with the send authentication token once it's
+//   available
+export const SEND_RESPONSE_KEY = new KeyDefinition<SendAccessResponse | null>(
+  SEND_ACCESS_AUTH_MEMORY,
+  "sendResponse",
+  {
+    deserializer: (data) => (data ? new SendAccessResponse(data) : null),
+  },
+);
diff --git a/apps/web/src/app/tools/send/send-access/send-access-authentication.service.ts b/apps/web/src/app/tools/send/send-access/send-access.service.ts
similarity index 84%
rename from apps/web/src/app/tools/send/send-access/send-access-authentication.service.ts
rename to apps/web/src/app/tools/send/send-access/send-access.service.ts
index fdb228ea6bf..a867aaa8f9b 100644
--- a/apps/web/src/app/tools/send/send-access/send-access-authentication.service.ts
+++ b/apps/web/src/app/tools/send/send-access/send-access.service.ts
@@ -9,13 +9,13 @@ import { SystemServiceProvider } from "@bitwarden/common/tools/providers.js";
 import { SendAccessRequest } from "@bitwarden/common/tools/send/models/request/send-access.request";
 import { SendApiService } from "@bitwarden/common/tools/send/services/send-api.service.abstraction";
 
-import { TOKEN_KEY, SEND_KEY_KEY } from "./send-access-memory";
+import { SEND_RESPONSE_KEY, SEND_CONTEXT_KEY } from "./send-access-memory";
 import { isErrorResponse } from "./util";
 
 const TEN_SECONDS = 10_000;
 
 @Injectable({ providedIn: "root" })
-export class SendAccessAuthenticationService {
+export class SendAccessService {
   private readonly logger: SemanticLogger;
 
   constructor(
@@ -31,6 +31,8 @@ export class SendAccessAuthenticationService {
   }
 
   redirect$(sendId: string) {
+    // FIXME: when the send authentication APIs become available, this method
+    //   should delegate to the API
     const response$ = from(this.api.postSendAccess(sendId, new SendAccessRequest()));
 
     const redirect$ = response$.pipe(
@@ -84,16 +86,12 @@ export class SendAccessAuthenticationService {
     return url;
   }
 
-  async setToken(token: string) {
-    return this.state.getGlobal(TOKEN_KEY).update(() => token);
-  }
-
-  async setKey(key: string) {
-    return this.state.getGlobal(SEND_KEY_KEY).update(() => key);
+  async setContext(sendId: string, key: string) {
+    return this.state.getGlobal(SEND_CONTEXT_KEY).update(() => ({ id: sendId, key }));
   }
 
   async clear(): Promise<void> {
-    await this.state.getGlobal(TOKEN_KEY).update(() => null);
-    await this.state.getGlobal(SEND_KEY_KEY).update(() => null);
+    await this.state.getGlobal(SEND_RESPONSE_KEY).update(() => null);
+    await this.state.getGlobal(SEND_CONTEXT_KEY).update(() => null);
   }
 }
diff --git a/apps/web/src/app/tools/send/send-access/try-send-access.guard.spec.ts b/apps/web/src/app/tools/send/send-access/try-send-access.guard.spec.ts
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/apps/web/src/app/tools/send/send-access/try-send-access.guard.ts b/apps/web/src/app/tools/send/send-access/try-send-access.guard.ts
index 46a92e5e4d3..1c6e9344f94 100644
--- a/apps/web/src/app/tools/send/send-access/try-send-access.guard.ts
+++ b/apps/web/src/app/tools/send/send-access/try-send-access.guard.ts
@@ -2,18 +2,37 @@ import { inject } from "@angular/core";
 import { ActivatedRouteSnapshot, CanActivateFn, RouterStateSnapshot } from "@angular/router";
 import { from, ignoreElements, concat } from "rxjs";
 
-import { SendAccessAuthenticationService } from "./send-access-authentication.service";
+import { SystemServiceProvider } from "@bitwarden/common/tools/providers";
+import { SYSTEM_SERVICE_PROVIDER } from "@bitwarden/generator-components";
+
+import { SendAccessService } from "./send-access.service";
 
 export const trySendAccess: CanActivateFn = (
   route: ActivatedRouteSnapshot,
-  state: RouterStateSnapshot,
+  _state: RouterStateSnapshot,
 ) => {
-  const sendAccess = inject(SendAccessAuthenticationService);
+  const sendAccess = inject(SendAccessService);
+  const system = inject<SystemServiceProvider>(SYSTEM_SERVICE_PROVIDER);
+  const logger = system.log({ function: "trySendAccess" });
 
   const { sendId, key } = route.params;
+  if (!sendId) {
+    logger.warn("sendId missing from the route parameters; redirecting to 404");
+  }
+  if (typeof sendId !== "string") {
+    logger.panic({ expected: "string", actual: typeof sendId }, "sendId has invalid type");
+  }
 
-  const setKey$ = from(sendAccess.setKey(key)).pipe(ignoreElements());
+  if (!key) {
+    logger.panic("key missing from the route parameters");
+  }
+  if (typeof key !== "string") {
+    logger.panic({ expected: "string", actual: typeof key }, "key has invalid type");
+  }
+
+  const contextUpdated$ = from(sendAccess.setContext(sendId, key)).pipe(ignoreElements());
   const redirect$ = sendAccess.redirect$(sendId);
 
-  return concat(setKey$, redirect$);
+  // ensure the key has loaded before redirecting
+  return concat(contextUpdated$, redirect$);
 };
diff --git a/libs/tools/generator/components/src/generator-services.module.ts b/libs/tools/generator/components/src/generator-services.module.ts
index 3a7b771a25d..946f7196d85 100644
--- a/libs/tools/generator/components/src/generator-services.module.ts
+++ b/libs/tools/generator/components/src/generator-services.module.ts
@@ -40,7 +40,12 @@ export const RANDOMIZER = new SafeInjectionToken<Randomizer>("Randomizer");
 const GENERATOR_SERVICE_PROVIDER = new SafeInjectionToken<providers.CredentialGeneratorProviders>(
   "CredentialGeneratorProviders",
 );
-const SYSTEM_SERVICE_PROVIDER = new SafeInjectionToken<SystemServiceProvider>("SystemServices");
+
+// FIXME: relocate the system service provider to a more general module once
+//        NX migration is complete.
+export const SYSTEM_SERVICE_PROVIDER = new SafeInjectionToken<SystemServiceProvider>(
+  "SystemServices",
+);
 
 /** Shared module containing generator component dependencies */
 @NgModule({
diff --git a/libs/tools/generator/components/src/index.ts b/libs/tools/generator/components/src/index.ts
index 56eb912f367..4ec32032de0 100644
--- a/libs/tools/generator/components/src/index.ts
+++ b/libs/tools/generator/components/src/index.ts
@@ -2,4 +2,4 @@ export { CredentialGeneratorHistoryComponent } from "./credential-generator-hist
 export { CredentialGeneratorHistoryDialogComponent } from "./credential-generator-history-dialog.component";
 export { EmptyCredentialHistoryComponent } from "./empty-credential-history.component";
 export { GeneratorModule } from "./generator.module";
-export { GeneratorServicesModule } from "./generator-services.module";
+export { GeneratorServicesModule, SYSTEM_SERVICE_PROVIDER } from "./generator-services.module";