diff --git a/.changeset/bump-unthrown-v5-stable.md b/.changeset/bump-unthrown-v5-stable.md
new file mode 100644
index 00000000..c1dcbb58
--- /dev/null
+++ b/.changeset/bump-unthrown-v5-stable.md
@@ -0,0 +1,31 @@
+---
+"@temporal-contract/contract": patch
+"@temporal-contract/client": patch
+"@temporal-contract/worker": patch
+---
+
+Bump `unthrown` to the stable `5.0.0` and raise the peer range to `^5.0.0`.
+
+The only API change since `5.0.0-beta.7` is that the standalone `tag` export is
+gone — it now lives on the pattern namespace as `P.tag(t)`, alongside every
+other pattern constructor (`P._` / `P.any` / `P.instanceOf` / `P.when` /
+`P.union`). The type and runtime behaviour are unchanged: it still produces the
+`{ _tag: t }` pattern, still narrows to the matching variant with its payload,
+and still works in grouped patterns.
+
+Migration is mechanical — drop `tag` from the import (keeping or adding `P`) and
+prefix the call sites:
+
+```diff
+- import { tag } from "unthrown";
++ import { P } from "unthrown";
+
+  result.mapErrCases((matcher) =>
+-   matcher.with(tag("@temporal-contract/WorkflowFailedError"), (error) => handle(error)),
++   matcher.with(P.tag("@temporal-contract/WorkflowFailedError"), (error) => handle(error)),
+  );
+```
+
+Every example in the docs, READMEs and TSDoc has been updated to the `P.tag`
+spelling, and the upgrade guide gained a note for anyone already tracking an
+8.0 beta.
diff --git a/README.md b/README.md
index 382c3f16..128f8d11 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,8 @@ export const activities = declareActivitiesHandler({
 Call it — names, arguments, and results all typed, and validated at runtime:
 
 ```typescript
+import { P } from "unthrown";
+
 const result = await client.executeWorkflow("processOrder", {
   workflowId: "order-123",
   args: { orderId: "ORD-1", customerId: "CUST-1", amount: 99.99 },
@@ -93,8 +95,8 @@ result.match({
   ok: (output) => console.log(output.transactionId),
   errCases: (matcher) =>
     matcher.with(
-      tag("@temporal-contract/WorkflowValidationError"),
-      tag("@temporal-contract/WorkflowFailedError"),
+      P.tag("@temporal-contract/WorkflowValidationError"),
+      P.tag("@temporal-contract/WorkflowFailedError"),
       // ...exhaustive — a missing tag is a compile error
       (error) => console.error(error.message),
     ),
diff --git a/docs/explanation/the-result-model.md b/docs/explanation/the-result-model.md
index 0deef7d1..a58d9091 100644
--- a/docs/explanation/the-result-model.md
+++ b/docs/explanation/the-result-model.md
@@ -121,16 +121,16 @@ The `errCases` handler and the `*ErrCases` combinators receive a matcher rather
 than the bare error:
 
 ```typescript
-import { tag } from "unthrown";
+import { P } from "unthrown";
 
 result.match({
   ok: (output) => output.transactionId,
   errCases: (matcher) =>
     matcher
-      .with(tag("@temporal-contract/ContractError"), (e) => handleDomain(e))
+      .with(P.tag("@temporal-contract/ContractError"), (e) => handleDomain(e))
       .with(
-        tag("@temporal-contract/WorkflowFailedError"),
-        tag("@temporal-contract/WorkflowExecutionNotFoundError"),
+        P.tag("@temporal-contract/WorkflowFailedError"),
+        P.tag("@temporal-contract/WorkflowExecutionNotFoundError"),
         (e) => handleInfra(e),
       ),
   defect: (cause) => report(cause),
diff --git a/docs/how-to/add-activity-middleware.md b/docs/how-to/add-activity-middleware.md
index 2abf353e..9b7c3679 100644
--- a/docs/how-to/add-activity-middleware.md
+++ b/docs/how-to/add-activity-middleware.md
@@ -38,13 +38,13 @@ import {
   declareActivitiesHandler,
   type ActivityMiddleware,
 } from "@temporal-contract/worker/activity";
-import { P, tag } from "unthrown";
+import { P } from "unthrown";
 
 const logging: ActivityMiddleware = ({ activityName, workflowName }, next) =>
   next().tapErrCases((matcher) =>
     matcher.with(
       P.instanceOf(ApplicationFailure),
-      tag("@temporal-contract/ContractError"),
+      P.tag("@temporal-contract/ContractError"),
       (error) => {
         logger.warn({ activityName, workflowName, error }, "activity failed");
       },
diff --git a/docs/how-to/install.md b/docs/how-to/install.md
index 21cc04b4..632f0c03 100644
--- a/docs/how-to/install.md
+++ b/docs/how-to/install.md
@@ -54,15 +54,15 @@ describes a compatible set. Do not mix versions.
 These are peers, not dependencies, because they appear in the packages' public
 types. Your code and the library must resolve to the _same_ copy.
 
-| Peer                   | Required by              | Range           |
-| ---------------------- | ------------------------ | --------------- |
-| `unthrown`             | contract, worker, client | `^5.0.0-beta.7` |
-| `@temporalio/common`   | worker, client           | `^1`            |
-| `@temporalio/worker`   | worker, testing          | `^1`            |
-| `@temporalio/workflow` | worker                   | `^1`            |
-| `@temporalio/client`   | client, testing          | `^1`            |
-| `@temporalio/testing`  | testing                  | `^1`            |
-| `vitest`               | testing                  | `^4`            |
+| Peer                   | Required by              | Range    |
+| ---------------------- | ------------------------ | -------- |
+| `unthrown`             | contract, worker, client | `^5.0.0` |
+| `@temporalio/common`   | worker, client           | `^1`     |
+| `@temporalio/worker`   | worker, testing          | `^1`     |
+| `@temporalio/workflow` | worker                   | `^1`     |
+| `@temporalio/client`   | client, testing          | `^1`     |
+| `@temporalio/testing`  | testing                  | `^1`     |
+| `vitest`               | testing                  | `^4`     |
 
 Plus a [Standard Schema](https://standardschema.dev/) library to write your
 schemas with — Zod, Valibot, or ArkType.
diff --git a/docs/how-to/intercept-client-calls.md b/docs/how-to/intercept-client-calls.md
index fcb0ec26..fe9d8985 100644
--- a/docs/how-to/intercept-client-calls.md
+++ b/docs/how-to/intercept-client-calls.md
@@ -95,13 +95,13 @@ Modeled domain errors (`WorkflowNotFoundError`, a `ContractError`, a validation
 failure) stay on the `err` channel. Branch on those with `flatMapErrCases`:
 
 ```typescript
-import { Err, Ok, P, tag } from "unthrown";
+import { Err, Ok, P } from "unthrown";
 
 const fallback: ClientInterceptor = (args, next) =>
   next().flatMapErrCases((matcher) =>
     matcher
       // Idempotent start: treat "already running" as success.
-      .with(tag("@temporal-contract/WorkflowAlreadyStartedError"), () => Ok(undefined).toAsync())
+      .with(P.tag("@temporal-contract/WorkflowAlreadyStartedError"), () => Ok(undefined).toAsync())
       // The matcher must cover the whole union — `P._` passes the rest through.
       .with(P._, (error) => Err(error).toAsync()),
   );
@@ -110,7 +110,7 @@ const fallback: ClientInterceptor = (args, next) =>
 ::: warning The matcher is exhaustive
 `flatMapErrCases`, `mapErrCases`, `tapErrCases`, and `recoverErrCases` all
 require a match that covers every member of the error union — here the nine
-members of `ClientCallError`. A single `.with(tag(...))` arm will not compile.
+members of `ClientCallError`. A single `.with(P.tag(...))` arm will not compile.
 Handle the cases you care about, then close with `P._`.
 :::
 
diff --git a/docs/how-to/migrate-from-neverthrow.md b/docs/how-to/migrate-from-neverthrow.md
index 3fdf74d0..5c857c53 100644
--- a/docs/how-to/migrate-from-neverthrow.md
+++ b/docs/how-to/migrate-from-neverthrow.md
@@ -104,10 +104,10 @@ exhaustive matcher instead of the bare error:
 result.mapErr((error) => new WrappedError(error));
 
 // after — one arm per tag in the union (abbreviated here; see the note below)
-import { tag } from "unthrown";
+import { P } from "unthrown";
 
 result.mapErrCases((matcher) =>
-  matcher.with(tag("@temporal-contract/WorkflowFailedError"), (error) => new WrappedError(error)),
+  matcher.with(P.tag("@temporal-contract/WorkflowFailedError"), (error) => new WrappedError(error)),
 );
 ```
 
@@ -125,9 +125,9 @@ into one branch is compact:
 
 ```typescript
 matcher.with(
-  tag("@temporal-contract/WorkflowNotFoundError"),
-  tag("@temporal-contract/WorkflowValidationError"),
-  tag("@temporal-contract/WorkflowFailedError"),
+  P.tag("@temporal-contract/WorkflowNotFoundError"),
+  P.tag("@temporal-contract/WorkflowValidationError"),
+  P.tag("@temporal-contract/WorkflowFailedError"),
   (error) => report(error),
 );
 ```
@@ -146,8 +146,8 @@ const message = result.match({
   ok: (value) => `charged ${value.transactionId}`,
   errCases: (matcher) =>
     matcher.with(
-      tag("@temporal-contract/WorkflowFailedError"),
-      tag("@temporal-contract/WorkflowValidationError"),
+      P.tag("@temporal-contract/WorkflowFailedError"),
+      P.tag("@temporal-contract/WorkflowValidationError"),
       (error) => `failed: ${error.message}`,
     ),
   defect: (cause) => `unexpected: ${String(cause)}`,
diff --git a/docs/how-to/model-domain-errors.md b/docs/how-to/model-domain-errors.md
index 36af9915..f05b2708 100644
--- a/docs/how-to/model-domain-errors.md
+++ b/docs/how-to/model-domain-errors.md
@@ -129,7 +129,7 @@ Declaring errors on an activity **changes its workflow-side call signature.**
 So an errors-declaring activity is awaited as a result, not a plain value:
 
 ```typescript
-import { tag } from "unthrown";
+import { P } from "unthrown";
 
 implementation: async (context, order) => {
   const charged = await context.activities.chargeCard({
@@ -141,7 +141,7 @@ implementation: async (context, order) => {
     ok: (payment) => ({ status: "completed" as const, transactionId: payment.transactionId }),
     errCases: (matcher) =>
       matcher
-        .with(tag("@temporal-contract/ContractError"), (error) => {
+        .with(P.tag("@temporal-contract/ContractError"), (error) => {
           // error.errorName narrows; error.data is typed from the schema
           if (error.errorName === "CardDeclined") {
             return { status: "failed" as const, reason: error.data.reason };
@@ -149,8 +149,8 @@ implementation: async (context, order) => {
           return { status: "failed" as const, reason: error.errorName };
         })
         .with(
-          tag("@temporal-contract/ActivityError"),
-          tag("@temporal-contract/ActivityCancelledError"),
+          P.tag("@temporal-contract/ActivityError"),
+          P.tag("@temporal-contract/ActivityCancelledError"),
           (error) => ({ status: "failed" as const, reason: error.message }),
         ),
     defect: (cause) => ({
@@ -179,7 +179,7 @@ A workflow whose declared error caused the failure surfaces it as a
 `WorkflowFailedError`:
 
 ```typescript
-import { tag } from "unthrown";
+import { P } from "unthrown";
 
 const result = await client.executeWorkflow("processOrder", {
   workflowId: "order-1",
@@ -190,7 +190,7 @@ result.match({
   ok: (output) => console.log("done:", output),
   errCases: (matcher) =>
     matcher
-      .with(tag("@temporal-contract/ContractError"), (error) => {
+      .with(P.tag("@temporal-contract/ContractError"), (error) => {
         switch (error.errorName) {
           case "EmptyOrder":
             return console.error("no items on order", error.data.orderId);
@@ -199,11 +199,11 @@ result.match({
         }
       })
       .with(
-        tag("@temporal-contract/WorkflowNotFoundError"),
-        tag("@temporal-contract/WorkflowValidationError"),
-        tag("@temporal-contract/WorkflowAlreadyStartedError"),
-        tag("@temporal-contract/WorkflowFailedError"),
-        tag("@temporal-contract/WorkflowExecutionNotFoundError"),
+        P.tag("@temporal-contract/WorkflowNotFoundError"),
+        P.tag("@temporal-contract/WorkflowValidationError"),
+        P.tag("@temporal-contract/WorkflowAlreadyStartedError"),
+        P.tag("@temporal-contract/WorkflowFailedError"),
+        P.tag("@temporal-contract/WorkflowExecutionNotFoundError"),
         (error) => console.error("failed:", error.message),
       ),
   defect: (cause) => console.error("unexpected:", cause),
diff --git a/docs/how-to/run-child-workflows.md b/docs/how-to/run-child-workflows.md
index 92949789..e6a3c8e1 100644
--- a/docs/how-to/run-child-workflows.md
+++ b/docs/how-to/run-child-workflows.md
@@ -13,7 +13,7 @@ same-contract and cross-contract calls look identical.
 
 ```typescript
 import { declareWorkflow } from "@temporal-contract/worker/workflow";
-import { tag } from "unthrown";
+import { P } from "unthrown";
 
 import { orderContract } from "./contract.js";
 
@@ -31,9 +31,9 @@ export const processOrder = declareWorkflow({
       ok: (output) => ({ status: "completed" as const, transactionId: output.transactionId }),
       errCases: (matcher) =>
         matcher.with(
-          tag("@temporal-contract/ChildWorkflowError"),
-          tag("@temporal-contract/ChildWorkflowCancelledError"),
-          tag("@temporal-contract/ChildWorkflowNotFoundError"),
+          P.tag("@temporal-contract/ChildWorkflowError"),
+          P.tag("@temporal-contract/ChildWorkflowCancelledError"),
+          P.tag("@temporal-contract/ChildWorkflowNotFoundError"),
           (error) => ({ status: "failed" as const, reason: error.message }),
         ),
       defect: (cause) => ({
diff --git a/docs/how-to/troubleshoot.md b/docs/how-to/troubleshoot.md
index e70e0b63..8f5013d3 100644
--- a/docs/how-to/troubleshoot.md
+++ b/docs/how-to/troubleshoot.md
@@ -250,9 +250,11 @@ Since 8.0, `TechnicalError` and `RuntimeClientError` ride the defect channel.
 Handle them in `defect`, `recoverDefect`, or `tapDefect`:
 
 ```typescript
+import { P } from "unthrown";
+
 result.match({
   ok: (v) => v,
-  errCases: (m) => m.with(tag("@temporal-contract/WorkflowFailedError"), handle),
+  errCases: (m) => m.with(P.tag("@temporal-contract/WorkflowFailedError"), handle),
   defect: (cause) => {
     if (cause instanceof RuntimeClientError) return report(cause);
     throw cause;
diff --git a/docs/how-to/upgrade-to-v8.md b/docs/how-to/upgrade-to-v8.md
index 55351b60..b3cb5060 100644
--- a/docs/how-to/upgrade-to-v8.md
+++ b/docs/how-to/upgrade-to-v8.md
@@ -16,9 +16,12 @@ explicitly:
 
 ```bash
 pnpm add @temporal-contract/contract@beta @temporal-contract/worker@beta \
-         @temporal-contract/client@beta unthrown@beta
+         @temporal-contract/client@beta unthrown@^5
 ```
 
+`unthrown` itself is stable — only the `@temporal-contract/*` packages are on
+the `beta` tag.
+
 The [stable docs](https://btravstack.github.io/temporal-contract/) document
 7.x; you are reading the beta docs.
 :::
@@ -32,7 +35,7 @@ pnpm add @temporal-contract/contract@beta \
          @temporal-contract/worker@beta \
          @temporal-contract/client@beta
 pnpm add -D @temporal-contract/testing@beta
-pnpm add unthrown@^5.0.0-beta.7
+pnpm add unthrown@^5.0.0
 ```
 
 If an intermediate beta had you install `ts-pattern` as a peer, remove it —
@@ -43,6 +46,20 @@ dependencies:
 pnpm remove ts-pattern
 ```
 
+If you already tracked an 8.0 beta, the standalone `tag` export is gone in
+unthrown 5.0.0 — it is `P.tag` now. Drop `tag` from the import (keeping or
+adding `P`) and prefix the call sites:
+
+```diff
+- import { tag } from "unthrown";
++ import { P } from "unthrown";
+
+  result.mapErrCases((matcher) =>
+-   matcher.with(tag("@temporal-contract/WorkflowFailedError"), (error) => handle(error)),
++   matcher.with(P.tag("@temporal-contract/WorkflowFailedError"), (error) => handle(error)),
+  );
+```
+
 ## 2. Rename the error combinators
 
 The bare combinators gained a `Cases` suffix, and their callback now receives a
@@ -61,7 +78,7 @@ result.mapErr((error) => new WrappedError(error));
 
 // 8.0 — one arm per tag in the union (abbreviated here; see the note below)
 result.mapErrCases((matcher) =>
-  matcher.with(tag("@temporal-contract/WorkflowFailedError"), (error) => new WrappedError(error)),
+  matcher.with(P.tag("@temporal-contract/WorkflowFailedError"), (error) => new WrappedError(error)),
 );
 ```
 
@@ -92,8 +109,8 @@ result.match({
   ok: (value) => value,
   errCases: (matcher) =>
     matcher.with(
-      tag("@temporal-contract/WorkflowFailedError"),
-      tag("@temporal-contract/WorkflowValidationError"),
+      P.tag("@temporal-contract/WorkflowFailedError"),
+      P.tag("@temporal-contract/WorkflowValidationError"),
       (error) => handle(error),
     ),
   defect: (cause) => report(cause),
@@ -162,8 +179,8 @@ result.match({
   ok: (value) => value,
   errCases: (matcher) =>
     matcher
-      .with(tag("@temporal-contract/RuntimeClientError"), (e) => report(e)) // ❌ remove
-      .with(tag("@temporal-contract/WorkflowFailedError"), (e) => handle(e)),
+      .with(P.tag("@temporal-contract/RuntimeClientError"), (e) => report(e)) // ❌ remove
+      .with(P.tag("@temporal-contract/WorkflowFailedError"), (e) => handle(e)),
   defect: (cause) => report(cause),
 });
 
@@ -171,7 +188,7 @@ result.match({
 result.match({
   ok: (value) => value,
   errCases: (matcher) =>
-    matcher.with(tag("@temporal-contract/WorkflowFailedError"), (e) => handle(e)),
+    matcher.with(P.tag("@temporal-contract/WorkflowFailedError"), (e) => handle(e)),
   defect: (cause) => {
     if (cause instanceof RuntimeClientError) {
       return report(cause); // handle it here instead
@@ -223,13 +240,14 @@ const retryOnce: ClientInterceptor = (args, next) =>
 ## Checklist
 
 - [ ] All four `@temporal-contract/*` packages on the same 8.0 version
-- [ ] `unthrown` resolves to `^5.0.0-beta.7`
+- [ ] `unthrown` resolves to `^5.0.0`
 - [ ] `ts-pattern` removed if it was added for beta.5
+- [ ] `tag(...)` → `P.tag(...)` if you tracked an earlier 8.0 beta
 - [ ] `mapErr` / `flatMapErr` / `tapErr` / `recoverErr` → `*Cases`
 - [ ] `match({ err })` → `match({ errCases })`
 - [ ] `TypedClient.create` / `createWorker` use `isDefect()` or `.get()`
-- [ ] No `tag("@temporal-contract/RuntimeClientError")` or
-      `tag("@temporal-contract/TechnicalError")` arms remain
+- [ ] No `P.tag("@temporal-contract/RuntimeClientError")` or
+      `P.tag("@temporal-contract/TechnicalError")` arms remain
 - [ ] `pnpm typecheck` clean
 
 The exhaustive matcher does most of the work: once it compiles, the migration is
diff --git a/docs/index.md b/docs/index.md
index 3bfbd3a7..d0922b3b 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -109,7 +109,7 @@ export const processOrder = declareWorkflow({
 ```typescript [4. Client]
 import { TypedClient } from "@temporal-contract/client";
 import { Client, Connection } from "@temporalio/client";
-import { tag } from "unthrown";
+import { P } from "unthrown";
 
 import { orderContract } from "./contract.js";
 
@@ -129,11 +129,11 @@ result.match({
   ok: (output) => console.log(output.transactionId), // ✅ typed
   errCases: (matcher) =>
     matcher.with(
-      tag("@temporal-contract/WorkflowNotFoundError"),
-      tag("@temporal-contract/WorkflowValidationError"),
-      tag("@temporal-contract/WorkflowAlreadyStartedError"),
-      tag("@temporal-contract/WorkflowFailedError"),
-      tag("@temporal-contract/WorkflowExecutionNotFoundError"),
+      P.tag("@temporal-contract/WorkflowNotFoundError"),
+      P.tag("@temporal-contract/WorkflowValidationError"),
+      P.tag("@temporal-contract/WorkflowAlreadyStartedError"),
+      P.tag("@temporal-contract/WorkflowFailedError"),
+      P.tag("@temporal-contract/WorkflowExecutionNotFoundError"),
       (error) => console.error("failed:", error.message),
     ),
   defect: (cause) => console.error("unexpected:", cause),
diff --git a/docs/reference/errors.md b/docs/reference/errors.md
index 61e46a18..2421eeee 100644
--- a/docs/reference/errors.md
+++ b/docs/reference/errors.md
@@ -11,8 +11,11 @@ exhaustive matcher. Tags are namespaced with the package scope
 (`"@temporal-contract/…"`) so they never collide with your own or another
 library's. `.name` stays the bare class name for readable logs.
 
+The snippets on this page are shape fragments, not runnable programs. `P` is
+unthrown's pattern namespace throughout — `import { P } from "unthrown"`.
+
 ```typescript
-matcher.with(tag("@temporal-contract/WorkflowFailedError"), (error) => ...);
+matcher.with(P.tag("@temporal-contract/WorkflowFailedError"), (error) => ...);
 ```
 
 **`ValidationError` subclasses** extend Temporal's `ApplicationFailure` instead.
@@ -58,7 +61,7 @@ declared error; `errorName` is the discriminant.
 | `cause`     | optional                                                        |
 
 ```typescript
-matcher.with(tag("@temporal-contract/ContractError"), (error) => {
+matcher.with(P.tag("@temporal-contract/ContractError"), (error) => {
   switch (error.errorName) {
     case "CardDeclined":
       return error.data.reason;
diff --git a/docs/tutorial/adding-signals-and-queries.md b/docs/tutorial/adding-signals-and-queries.md
index 8313b8c2..c689fb26 100644
--- a/docs/tutorial/adding-signals-and-queries.md
+++ b/docs/tutorial/adding-signals-and-queries.md
@@ -187,7 +187,7 @@ Replace `src/client.ts`:
 ```typescript
 import { TypedClient } from "@temporal-contract/client";
 import { Client, Connection } from "@temporalio/client";
-import { tag } from "unthrown";
+import { P } from "unthrown";
 
 import { orderContract } from "./contract.js";
 
@@ -235,9 +235,9 @@ result.match({
   ok: (output) => console.log("charged:", output.transactionId),
   errCases: (matcher) =>
     matcher.with(
-      tag("@temporal-contract/WorkflowValidationError"),
-      tag("@temporal-contract/WorkflowFailedError"),
-      tag("@temporal-contract/WorkflowExecutionNotFoundError"),
+      P.tag("@temporal-contract/WorkflowValidationError"),
+      P.tag("@temporal-contract/WorkflowFailedError"),
+      P.tag("@temporal-contract/WorkflowExecutionNotFoundError"),
       (error) => console.error("workflow failed:", error.message),
     ),
   defect: (cause) => console.error("unexpected:", cause),
diff --git a/docs/tutorial/your-first-workflow.md b/docs/tutorial/your-first-workflow.md
index 9b46c7ba..7bc9b5bd 100644
--- a/docs/tutorial/your-first-workflow.md
+++ b/docs/tutorial/your-first-workflow.md
@@ -289,7 +289,7 @@ Open a second terminal. Create `src/client.ts`:
 ```typescript
 import { TypedClient } from "@temporal-contract/client";
 import { Client, Connection } from "@temporalio/client";
-import { tag } from "unthrown";
+import { P } from "unthrown";
 
 import { orderContract } from "./contract.js";
 
@@ -315,11 +315,11 @@ result.match({
   },
   errCases: (matcher) =>
     matcher.with(
-      tag("@temporal-contract/WorkflowNotFoundError"),
-      tag("@temporal-contract/WorkflowValidationError"),
-      tag("@temporal-contract/WorkflowAlreadyStartedError"),
-      tag("@temporal-contract/WorkflowFailedError"),
-      tag("@temporal-contract/WorkflowExecutionNotFoundError"),
+      P.tag("@temporal-contract/WorkflowNotFoundError"),
+      P.tag("@temporal-contract/WorkflowValidationError"),
+      P.tag("@temporal-contract/WorkflowAlreadyStartedError"),
+      P.tag("@temporal-contract/WorkflowFailedError"),
+      P.tag("@temporal-contract/WorkflowExecutionNotFoundError"),
       (error) => console.error("workflow failed:", error.message),
     ),
   defect: (cause) => console.error("unexpected:", cause),
diff --git a/examples/order-processing-client/src/client.ts b/examples/order-processing-client/src/client.ts
index bf583583..33af50b8 100644
--- a/examples/order-processing-client/src/client.ts
+++ b/examples/order-processing-client/src/client.ts
@@ -4,7 +4,7 @@ import {
   type OrderSchema,
 } from "@temporal-contract/sample-order-processing-contract";
 import { Client, Connection } from "@temporalio/client";
-import { tag } from "unthrown";
+import { P } from "unthrown";
 import type { z } from "zod";
 
 import { logger } from "./logger.js";
@@ -127,28 +127,28 @@ async function run() {
       },
       errCases: (matcher) =>
         matcher
-          .with(tag("@temporal-contract/WorkflowNotFoundError"), (err) =>
+          .with(P.tag("@temporal-contract/WorkflowNotFoundError"), (err) =>
             logger.error({ error: err, orderId: order.orderId }, "❌ Workflow not found"),
           )
-          .with(tag("@temporal-contract/WorkflowValidationError"), (err) =>
+          .with(P.tag("@temporal-contract/WorkflowValidationError"), (err) =>
             logger.error({ error: err, orderId: order.orderId }, "❌ Workflow validation failed"),
           )
           // Idempotent fast-path: a workflow with this ID is already running (or in
           // retention). Production callers can re-fetch the existing handle; here we
           // just log and move on.
-          .with(tag("@temporal-contract/WorkflowAlreadyStartedError"), (err) =>
+          .with(P.tag("@temporal-contract/WorkflowAlreadyStartedError"), (err) =>
             logger.warn(
               { error: err, orderId: order.orderId },
               "⏭️  Workflow already started — skipping",
             ),
           )
-          .with(tag("@temporal-contract/WorkflowFailedError"), (err) =>
+          .with(P.tag("@temporal-contract/WorkflowFailedError"), (err) =>
             logger.error(
               { error: err, orderId: order.orderId, cause: err.cause },
               "❌ Workflow completed with failure",
             ),
           )
-          .with(tag("@temporal-contract/WorkflowExecutionNotFoundError"), (err) =>
+          .with(P.tag("@temporal-contract/WorkflowExecutionNotFoundError"), (err) =>
             logger.error(
               { error: err, orderId: order.orderId },
               "❌ Workflow execution not found in namespace",
@@ -200,19 +200,19 @@ async function run() {
     },
     errCases: (matcher) =>
       matcher
-        .with(tag("@temporal-contract/WorkflowNotFoundError"), (err) =>
+        .with(P.tag("@temporal-contract/WorkflowNotFoundError"), (err) =>
           logger.error({ error: err }, "❌ Workflow not found"),
         )
-        .with(tag("@temporal-contract/WorkflowValidationError"), (err) =>
+        .with(P.tag("@temporal-contract/WorkflowValidationError"), (err) =>
           logger.error({ error: err }, "❌ Validation failed"),
         )
-        .with(tag("@temporal-contract/WorkflowAlreadyStartedError"), (err) =>
+        .with(P.tag("@temporal-contract/WorkflowAlreadyStartedError"), (err) =>
           logger.warn({ error: err }, "⏭️  Workflow already started"),
         )
-        .with(tag("@temporal-contract/WorkflowFailedError"), (err) =>
+        .with(P.tag("@temporal-contract/WorkflowFailedError"), (err) =>
           logger.error({ error: err, cause: err.cause }, "❌ Workflow completed with failure"),
         )
-        .with(tag("@temporal-contract/WorkflowExecutionNotFoundError"), (err) =>
+        .with(P.tag("@temporal-contract/WorkflowExecutionNotFoundError"), (err) =>
           logger.error({ error: err }, "❌ Workflow execution not found in namespace"),
         ),
     // A defect is an unmodeled failure (a bug) — including technical/
diff --git a/packages/client/package.json b/packages/client/package.json
index 68910ecb..defa3f6e 100644
--- a/packages/client/package.json
+++ b/packages/client/package.json
@@ -77,7 +77,7 @@
   "peerDependencies": {
     "@temporalio/client": "^1",
     "@temporalio/common": "^1",
-    "unthrown": "^5.0.0-beta.7"
+    "unthrown": "^5.0.0"
   },
   "engines": {
     "node": ">=22.19.0"
diff --git a/packages/client/src/__tests__/client.spec.ts b/packages/client/src/__tests__/client.spec.ts
index 71965904..2964ac99 100644
--- a/packages/client/src/__tests__/client.spec.ts
+++ b/packages/client/src/__tests__/client.spec.ts
@@ -4,7 +4,7 @@ import { fileURLToPath } from "node:url";
 import { it as baseIt } from "@temporal-contract/testing/extension";
 import { Client } from "@temporalio/client";
 import { Worker } from "@temporalio/worker";
-import { tag } from "unthrown";
+import { P } from "unthrown";
 import { describe, expect, vi, beforeEach } from "vitest";
 
 import { TypedClient } from "../client.js";
@@ -404,11 +404,11 @@ describe("Client Package - Integration Tests", () => {
         },
         errCases: (matcher) =>
           matcher.with(
-            tag("@temporal-contract/WorkflowNotFoundError"),
-            tag("@temporal-contract/WorkflowValidationError"),
-            tag("@temporal-contract/WorkflowAlreadyStartedError"),
-            tag("@temporal-contract/WorkflowFailedError"),
-            tag("@temporal-contract/WorkflowExecutionNotFoundError"),
+            P.tag("@temporal-contract/WorkflowNotFoundError"),
+            P.tag("@temporal-contract/WorkflowValidationError"),
+            P.tag("@temporal-contract/WorkflowAlreadyStartedError"),
+            P.tag("@temporal-contract/WorkflowFailedError"),
+            P.tag("@temporal-contract/WorkflowExecutionNotFoundError"),
             () => {
               throw new Error("Should not be called");
             },
diff --git a/packages/client/src/client.spec.ts b/packages/client/src/client.spec.ts
index 0e5d0618..d98c9d1b 100644
--- a/packages/client/src/client.spec.ts
+++ b/packages/client/src/client.spec.ts
@@ -11,7 +11,7 @@ import {
   TypedSearchAttributes,
   WorkflowNotFoundError as TemporalWorkflowNotFoundError,
 } from "@temporalio/common";
-import { tag } from "unthrown";
+import { P } from "unthrown";
 import { describe, it, expect, vi, beforeEach } from "vitest";
 import { z } from "zod";
 
@@ -794,11 +794,11 @@ describe("TypedClient", () => {
         },
         errCases: (matcher) =>
           matcher.with(
-            tag("@temporal-contract/WorkflowNotFoundError"),
-            tag("@temporal-contract/WorkflowValidationError"),
-            tag("@temporal-contract/WorkflowAlreadyStartedError"),
-            tag("@temporal-contract/WorkflowFailedError"),
-            tag("@temporal-contract/WorkflowExecutionNotFoundError"),
+            P.tag("@temporal-contract/WorkflowNotFoundError"),
+            P.tag("@temporal-contract/WorkflowValidationError"),
+            P.tag("@temporal-contract/WorkflowAlreadyStartedError"),
+            P.tag("@temporal-contract/WorkflowFailedError"),
+            P.tag("@temporal-contract/WorkflowExecutionNotFoundError"),
             () => {
               throw new Error("Should not be called");
             },
diff --git a/packages/client/src/client.ts b/packages/client/src/client.ts
index 81e12742..a88e6b47 100644
--- a/packages/client/src/client.ts
+++ b/packages/client/src/client.ts
@@ -383,6 +383,8 @@ export class TypedClient<TContract extends ContractDefinition> {
    *
    * @example
    * ```ts
+   * import { P } from "unthrown";
+   *
    * const result = await client.schedule.create("processOrder", {
    *   scheduleId: "daily-sweep",
    *   spec: { cronExpressions: ["0 2 * * *"] },
@@ -393,8 +395,8 @@ export class TypedClient<TContract extends ContractDefinition> {
    *   ok: async (handle) => { await handle.pause("maintenance"); },
    *   errCases: (matcher) =>
    *     matcher.with(
-   *       tag("@temporal-contract/WorkflowNotFoundError"),
-   *       tag("@temporal-contract/WorkflowValidationError"),
+   *       P.tag("@temporal-contract/WorkflowNotFoundError"),
+   *       P.tag("@temporal-contract/WorkflowValidationError"),
    *       (error) => console.error("schedule create failed", error),
    *     ),
    *   defect: (cause) => console.error("unexpected failure", cause),
@@ -516,6 +518,8 @@ export class TypedClient<TContract extends ContractDefinition> {
    *
    * @example
    * ```ts
+   * import { P } from "unthrown";
+   *
    * const handleResult = await client.startWorkflow('processOrder', {
    *   workflowId: 'order-123',
    *   args: { orderId: 'ORD-123' },
@@ -530,9 +534,9 @@ export class TypedClient<TContract extends ContractDefinition> {
    *   },
    *   errCases: (matcher) =>
    *     matcher.with(
-   *       tag('@temporal-contract/WorkflowNotFoundError'),
-   *       tag('@temporal-contract/WorkflowValidationError'),
-   *       tag('@temporal-contract/WorkflowAlreadyStartedError'),
+   *       P.tag('@temporal-contract/WorkflowNotFoundError'),
+   *       P.tag('@temporal-contract/WorkflowValidationError'),
+   *       P.tag('@temporal-contract/WorkflowAlreadyStartedError'),
    *       (error) => console.error('Failed to start:', error),
    *     ),
    *   defect: (cause) => console.error('Unexpected failure:', cause),
@@ -612,6 +616,8 @@ export class TypedClient<TContract extends ContractDefinition> {
    *
    * @example
    * ```ts
+   * import { P } from "unthrown";
+   *
    * const result = await client.signalWithStart('processOrder', {
    *   workflowId: 'order-123',
    *   args: { orderId: 'ORD-123', customerId: 'CUST-1' },
@@ -623,10 +629,10 @@ export class TypedClient<TContract extends ContractDefinition> {
    *   ok: (handle) => console.log('signaled run', handle.signaledRunId),
    *   errCases: (matcher) =>
    *     matcher.with(
-   *       tag('@temporal-contract/WorkflowNotFoundError'),
-   *       tag('@temporal-contract/WorkflowValidationError'),
-   *       tag('@temporal-contract/SignalValidationError'),
-   *       tag('@temporal-contract/WorkflowAlreadyStartedError'),
+   *       P.tag('@temporal-contract/WorkflowNotFoundError'),
+   *       P.tag('@temporal-contract/WorkflowValidationError'),
+   *       P.tag('@temporal-contract/SignalValidationError'),
+   *       P.tag('@temporal-contract/WorkflowAlreadyStartedError'),
    *       (error) => console.error('signalWithStart failed', error),
    *     ),
    *   defect: (cause) => console.error('unexpected failure', cause),
@@ -744,6 +750,8 @@ export class TypedClient<TContract extends ContractDefinition> {
    *
    * @example
    * ```ts
+   * import { P } from "unthrown";
+   *
    * const result = await client.executeWorkflow('processOrder', {
    *   workflowId: 'order-123',
    *   args: { orderId: 'ORD-123' },
@@ -755,12 +763,12 @@ export class TypedClient<TContract extends ContractDefinition> {
    *   ok: (output) => console.log('Order processed:', output.status),
    *   errCases: (matcher) =>
    *     matcher.with(
-   *       tag('@temporal-contract/ContractError'),
-   *       tag('@temporal-contract/WorkflowNotFoundError'),
-   *       tag('@temporal-contract/WorkflowValidationError'),
-   *       tag('@temporal-contract/WorkflowAlreadyStartedError'),
-   *       tag('@temporal-contract/WorkflowFailedError'),
-   *       tag('@temporal-contract/WorkflowExecutionNotFoundError'),
+   *       P.tag('@temporal-contract/ContractError'),
+   *       P.tag('@temporal-contract/WorkflowNotFoundError'),
+   *       P.tag('@temporal-contract/WorkflowValidationError'),
+   *       P.tag('@temporal-contract/WorkflowAlreadyStartedError'),
+   *       P.tag('@temporal-contract/WorkflowFailedError'),
+   *       P.tag('@temporal-contract/WorkflowExecutionNotFoundError'),
    *       (error) => console.error('Processing failed:', error),
    *     ),
    *   defect: (cause) => console.error('Unexpected failure:', cause),
@@ -888,6 +896,8 @@ export class TypedClient<TContract extends ContractDefinition> {
    *
    * @example
    * ```ts
+   * import { P } from "unthrown";
+   *
    * const handleResult = await client.getHandle('processOrder', 'order-123');
    * await handleResult.match({
    *   ok: async (handle) => {
@@ -896,7 +906,7 @@ export class TypedClient<TContract extends ContractDefinition> {
    *   },
    *   errCases: (matcher) =>
    *     matcher.with(
-   *       tag('@temporal-contract/WorkflowNotFoundError'),
+   *       P.tag('@temporal-contract/WorkflowNotFoundError'),
    *       (error) => console.error('Failed to get handle:', error),
    *     ),
    *   defect: (cause) => console.error('Unexpected failure:', cause),
diff --git a/packages/contract/package.json b/packages/contract/package.json
index bac66712..00a73075 100644
--- a/packages/contract/package.json
+++ b/packages/contract/package.json
@@ -87,7 +87,7 @@
     "vitest": "catalog:"
   },
   "peerDependencies": {
-    "unthrown": "^5.0.0-beta.7"
+    "unthrown": "^5.0.0"
   },
   "peerDependenciesMeta": {
     "unthrown": {
diff --git a/packages/contract/src/errors.ts b/packages/contract/src/errors.ts
index 244cf885..925664aa 100644
--- a/packages/contract/src/errors.ts
+++ b/packages/contract/src/errors.ts
@@ -64,7 +64,7 @@ export class TechnicalError extends TaggedError("@temporal-contract/TechnicalErr
  *
  * The unthrown `_tag` ("@temporal-contract/ContractError") discriminates a
  * `ContractError` from the other tagged errors in a Result's error channel
- * (e.g. via `result.match({ errCases: (m) => m.with(tag("@temporal-contract/ContractError"), …) })`);
+ * (e.g. via `result.match({ errCases: (m) => m.with(P.tag("@temporal-contract/ContractError"), …) })`);
  * `errorName` then narrows to the concrete declared error.
  */
 export class ContractError<TName extends string = string, TData = unknown> extends TaggedError(
diff --git a/packages/worker/README.md b/packages/worker/README.md
index 61af1f5b..dbd4df6d 100644
--- a/packages/worker/README.md
+++ b/packages/worker/README.md
@@ -70,6 +70,7 @@ Execute child workflows with type-safe `AsyncResult`. Supports both same-contrac
 ```typescript
 // workflows.ts
 import { declareWorkflow } from "@temporal-contract/worker/workflow";
+import { P } from "unthrown";
 
 export const parentWorkflow = declareWorkflow({
   workflowName: "parentWorkflow",
@@ -86,9 +87,9 @@ export const parentWorkflow = declareWorkflow({
       ok: (output) => console.log("Payment processed:", output),
       errCases: (matcher) =>
         matcher.with(
-          tag("@temporal-contract/ChildWorkflowError"),
-          tag("@temporal-contract/ChildWorkflowCancelledError"),
-          tag("@temporal-contract/ChildWorkflowNotFoundError"),
+          P.tag("@temporal-contract/ChildWorkflowError"),
+          P.tag("@temporal-contract/ChildWorkflowCancelledError"),
+          P.tag("@temporal-contract/ChildWorkflowNotFoundError"),
           (error) => console.error("Payment failed:", error),
         ),
       defect: (cause) => console.error("Unexpected failure:", cause),
@@ -118,9 +119,9 @@ export const parentWorkflow = declareWorkflow({
       },
       errCases: (matcher) =>
         matcher.with(
-          tag("@temporal-contract/ChildWorkflowError"),
-          tag("@temporal-contract/ChildWorkflowCancelledError"),
-          tag("@temporal-contract/ChildWorkflowNotFoundError"),
+          P.tag("@temporal-contract/ChildWorkflowError"),
+          P.tag("@temporal-contract/ChildWorkflowCancelledError"),
+          P.tag("@temporal-contract/ChildWorkflowNotFoundError"),
           (error) => console.error("Failed to start:", error),
         ),
       defect: (cause) => console.error("Unexpected failure:", cause),
diff --git a/packages/worker/package.json b/packages/worker/package.json
index db2e4fb4..d7984f3e 100644
--- a/packages/worker/package.json
+++ b/packages/worker/package.json
@@ -96,7 +96,7 @@
     "@temporalio/common": "^1",
     "@temporalio/worker": "^1",
     "@temporalio/workflow": "^1",
-    "unthrown": "^5.0.0-beta.7"
+    "unthrown": "^5.0.0"
   },
   "engines": {
     "node": ">=22.19.0"
diff --git a/packages/worker/src/activity-contract-errors.spec.ts b/packages/worker/src/activity-contract-errors.spec.ts
index 557578f0..a9719481 100644
--- a/packages/worker/src/activity-contract-errors.spec.ts
+++ b/packages/worker/src/activity-contract-errors.spec.ts
@@ -1,6 +1,6 @@
 import { defineContract } from "@temporal-contract/contract";
 import { ContractError } from "@temporal-contract/contract/errors";
-import { Ok, Err, P, tag, type AsyncResult } from "unthrown";
+import { Ok, Err, P, type AsyncResult } from "unthrown";
 /**
  * Runtime coverage for `declareActivitiesHandler`'s contract-declared typed
  * errors, middleware chain, and dependency context — the boundary where an
@@ -301,7 +301,7 @@ describe("declareActivitiesHandler — middleware", () => {
       next().tapErrCases((matcher) =>
         matcher.with(
           P.instanceOf(ApplicationFailure),
-          tag("@temporal-contract/ContractError"),
+          P.tag("@temporal-contract/ContractError"),
           (error) => {
             observed.push(error);
           },
diff --git a/packages/worker/src/activity.ts b/packages/worker/src/activity.ts
index 7bb6c9f2..a69865a2 100644
--- a/packages/worker/src/activity.ts
+++ b/packages/worker/src/activity.ts
@@ -29,7 +29,7 @@ import {
   type ContractErrorInputUnion,
 } from "@temporal-contract/contract/errors";
 import { ApplicationFailure } from "@temporalio/common";
-import { P, tag, type AsyncResult } from "unthrown";
+import { P, type AsyncResult } from "unthrown";
 
 import { contractErrorToApplicationFailure } from "./contract-errors.js";
 import {
@@ -293,11 +293,14 @@ export type ActivityMiddlewareNext<
  *
  * @example Log every activity invocation and its outcome (read-only)
  * ```ts
+ * import { ApplicationFailure } from '@temporal-contract/worker/activity';
+ * import { P } from "unthrown";
+ *
  * const logging: ActivityMiddleware = ({ activityName, workflowName }, next) =>
  *   next().tapErrCases((matcher) =>
  *     matcher.with(
  *       P.instanceOf(ApplicationFailure),
- *       tag("@temporal-contract/ContractError"),
+ *       P.tag("@temporal-contract/ContractError"),
  *       (error) => {
  *         logger.warn({ activityName, workflowName, error }, "activity failed");
  *       },
@@ -748,7 +751,7 @@ export function declareActivitiesHandler<
         errCases: (matcher) =>
           matcher.with(
             P.instanceOf(ApplicationFailure),
-            tag("@temporal-contract/ContractError"),
+            P.tag("@temporal-contract/ContractError"),
             async (error) => {
               if (error instanceof ContractError) {
                 throw await contractErrorToApplicationFailure(
diff --git a/packages/worker/src/cancellation.ts b/packages/worker/src/cancellation.ts
index 18411e06..f19de678 100644
--- a/packages/worker/src/cancellation.ts
+++ b/packages/worker/src/cancellation.ts
@@ -31,6 +31,8 @@ import { makeAsyncResult } from "./internal.js";
  *
  * @example
  * ```ts
+ * import { P } from "unthrown";
+ *
  * const result = await context.cancellableScope(async () => {
  *   return await context.activities.processStep(...);
  * });
@@ -38,7 +40,7 @@ import { makeAsyncResult } from "./internal.js";
  * result.match({
  *   ok: (output) => { ... },
  *   errCases: (matcher) =>
- *     matcher.with(tag("@temporal-contract/WorkflowCancelledError"), (error) => {
+ *     matcher.with(P.tag("@temporal-contract/WorkflowCancelledError"), (error) => {
  *       // error instanceof WorkflowCancelledError — graceful exit
  *     }),
  *   defect: (cause) => {
diff --git a/packages/worker/src/workflow.ts b/packages/worker/src/workflow.ts
index 7d15ad24..26bd08f7 100644
--- a/packages/worker/src/workflow.ts
+++ b/packages/worker/src/workflow.ts
@@ -610,6 +610,8 @@ type WorkflowContext<
    *
    * @example
    * ```ts
+   * import { P } from "unthrown";
+   *
    * // Same contract child workflow
    * const childResult = await context.startChildWorkflow(myContract, 'processPayment', {
    *   workflowId: 'payment-123',
@@ -629,9 +631,9 @@ type WorkflowContext<
    *   },
    *   errCases: (matcher) =>
    *     matcher.with(
-   *       tag('@temporal-contract/ChildWorkflowError'),
-   *       tag('@temporal-contract/ChildWorkflowCancelledError'),
-   *       tag('@temporal-contract/ChildWorkflowNotFoundError'),
+   *       P.tag('@temporal-contract/ChildWorkflowError'),
+   *       P.tag('@temporal-contract/ChildWorkflowCancelledError'),
+   *       P.tag('@temporal-contract/ChildWorkflowNotFoundError'),
    *       (error) => console.error('Failed to start:', error),
    *     ),
    *   defect: (cause) => console.error('Unexpected failure:', cause),
@@ -659,6 +661,8 @@ type WorkflowContext<
    *
    * @example
    * ```ts
+   * import { P } from "unthrown";
+   *
    * // Same contract child workflow
    * const result = await context.executeChildWorkflow(myContract, 'processPayment', {
    *   workflowId: 'payment-123',
@@ -675,9 +679,9 @@ type WorkflowContext<
    *   ok: (output) => console.log('Payment processed:', output),
    *   errCases: (matcher) =>
    *     matcher.with(
-   *       tag('@temporal-contract/ChildWorkflowError'),
-   *       tag('@temporal-contract/ChildWorkflowCancelledError'),
-   *       tag('@temporal-contract/ChildWorkflowNotFoundError'),
+   *       P.tag('@temporal-contract/ChildWorkflowError'),
+   *       P.tag('@temporal-contract/ChildWorkflowCancelledError'),
+   *       P.tag('@temporal-contract/ChildWorkflowNotFoundError'),
    *       (error) => console.error('Processing failed:', error),
    *     ),
    *   defect: (cause) => console.error('Unexpected failure:', cause),
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 4ccfa82b..6904c859 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -52,8 +52,8 @@ catalogs:
       specifier: 26.1.1
       version: 26.1.1
     '@unthrown/vitest':
-      specifier: 5.0.0-beta.7
-      version: 5.0.0-beta.7
+      specifier: 5.0.0
+      version: 5.0.0
     '@vitest/coverage-v8':
       specifier: 4.1.10
       version: 4.1.10
@@ -100,8 +100,8 @@ catalogs:
       specifier: 6.0.3
       version: 6.0.3
     unthrown:
-      specifier: 5.0.0-beta.7
-      version: 5.0.0-beta.7
+      specifier: 5.0.0
+      version: 5.0.0
     valibot:
       specifier: 1.4.2
       version: 1.4.2
@@ -211,7 +211,7 @@ importers:
         version: 13.1.3
       unthrown:
         specifier: 'catalog:'
-        version: 5.0.0-beta.7
+        version: 5.0.0
       zod:
         specifier: 'catalog:'
         version: 4.4.3
@@ -273,7 +273,7 @@ importers:
         version: 13.1.3
       unthrown:
         specifier: 'catalog:'
-        version: 5.0.0-beta.7
+        version: 5.0.0
       zod:
         specifier: 'catalog:'
         version: 4.4.3
@@ -295,7 +295,7 @@ importers:
         version: 26.1.1
       '@unthrown/vitest':
         specifier: 'catalog:'
-        version: 5.0.0-beta.7(unthrown@5.0.0-beta.7)(vitest@4.1.10)
+        version: 5.0.0(unthrown@5.0.0)(vitest@4.1.10)
       '@vitest/coverage-v8':
         specifier: 'catalog:'
         version: 4.1.10(vitest@4.1.10)
@@ -344,7 +344,7 @@ importers:
         version: 26.1.1
       '@unthrown/vitest':
         specifier: 'catalog:'
-        version: 5.0.0-beta.7(unthrown@5.0.0-beta.7)(vitest@4.1.10)
+        version: 5.0.0(unthrown@5.0.0)(vitest@4.1.10)
       '@vitest/coverage-v8':
         specifier: 'catalog:'
         version: 4.1.10(vitest@4.1.10)
@@ -362,7 +362,7 @@ importers:
         version: 6.0.3
       unthrown:
         specifier: 'catalog:'
-        version: 5.0.0-beta.7
+        version: 5.0.0
       vitest:
         specifier: 'catalog:'
         version: 4.1.10(@types/node@26.1.1)(@vitest/coverage-v8@4.1.10)(jiti@2.7.0)(terser@5.48.0)(tsx@4.23.1)(yaml@2.9.0)
@@ -390,7 +390,7 @@ importers:
         version: 26.1.1
       '@unthrown/vitest':
         specifier: 'catalog:'
-        version: 5.0.0-beta.7(unthrown@5.0.0-beta.7)(vitest@4.1.10)
+        version: 5.0.0(unthrown@5.0.0)(vitest@4.1.10)
       '@vitest/coverage-v8':
         specifier: 'catalog:'
         version: 4.1.10(vitest@4.1.10)
@@ -411,7 +411,7 @@ importers:
         version: 6.0.3
       unthrown:
         specifier: 'catalog:'
-        version: 5.0.0-beta.7
+        version: 5.0.0
       valibot:
         specifier: 'catalog:'
         version: 1.4.2(typescript@6.0.3)
@@ -500,7 +500,7 @@ importers:
         version: 26.1.1
       '@unthrown/vitest':
         specifier: 'catalog:'
-        version: 5.0.0-beta.7(unthrown@5.0.0-beta.7)(vitest@4.1.10)
+        version: 5.0.0(unthrown@5.0.0)(vitest@4.1.10)
       '@vitest/coverage-v8':
         specifier: 'catalog:'
         version: 4.1.10(vitest@4.1.10)
@@ -518,7 +518,7 @@ importers:
         version: 6.0.3
       unthrown:
         specifier: 'catalog:'
-        version: 5.0.0-beta.7
+        version: 5.0.0
       vitest:
         specifier: 'catalog:'
         version: 4.1.10(@types/node@26.1.1)(@vitest/coverage-v8@4.1.10)(jiti@2.7.0)(terser@5.48.0)(tsx@4.23.1)(yaml@2.9.0)
@@ -2520,11 +2520,11 @@ packages:
   '@ungap/structured-clone@1.3.1':
     resolution: {integrity: sha512-mUFwbeTqrVgDQxFveS+df2yfap6iuP20NAKAsBt5jDEoOTDew+zwLAOilHCeQJOVSvmgCX4ogqIrA0mnyr08yQ==}
 
-  '@unthrown/vitest@5.0.0-beta.7':
-    resolution: {integrity: sha512-CXT3DwFc8b9Vj/NSF/0Tc7xlDi5syK9+2vVYWSf0U2lmt/Om2z7olP21e67mnvXVmdzEQ8+1RNSGSqRwCtPUOg==}
+  '@unthrown/vitest@5.0.0':
+    resolution: {integrity: sha512-YbyqZE+JnPVMkDGRY+cFUY27TEbp7O+mLMF5Clf6zxneTEoU6du0G/xnjQNd/R/Gib8jyfuuLL3tDzwF6YhJiA==}
     engines: {node: '>=20'}
     peerDependencies:
-      unthrown: ^5.0.0-beta.7
+      unthrown: ^5.0.0
       vitest: ^4
 
   '@upsetjs/venn.js@2.0.0':
@@ -4796,8 +4796,8 @@ packages:
     resolution: {integrity: sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==}
     engines: {node: '>= 4.0.0'}
 
-  unthrown@5.0.0-beta.7:
-    resolution: {integrity: sha512-/eLkvTAg21BwtCQydLLok2lWYTn0CwvU/QSxJ7ugacszL3GOjZEh/rvimAjlz5B7D47u3A55ZLykX06Zyp9TCg==}
+  unthrown@5.0.0:
+    resolution: {integrity: sha512-zI93lFwRJ6Lw25HH/T7PNIWiX2bOFfF+0L3regQsrDWFARcqH83a0MLtUPmGHnFKUFXj7ZPpmyLSZOdwQbFu+g==}
     engines: {node: '>=20'}
 
   update-browserslist-db@1.2.3:
@@ -6810,9 +6810,9 @@ snapshots:
 
   '@ungap/structured-clone@1.3.1': {}
 
-  '@unthrown/vitest@5.0.0-beta.7(unthrown@5.0.0-beta.7)(vitest@4.1.10)':
+  '@unthrown/vitest@5.0.0(unthrown@5.0.0)(vitest@4.1.10)':
     dependencies:
-      unthrown: 5.0.0-beta.7
+      unthrown: 5.0.0
       vitest: 4.1.10(@types/node@26.1.1)(@vitest/coverage-v8@4.1.10)(jiti@2.7.0)(terser@5.48.0)(tsx@4.23.1)(yaml@2.9.0)
 
   '@upsetjs/venn.js@2.0.0':
@@ -9201,7 +9201,7 @@ snapshots:
 
   universalify@0.1.2: {}
 
-  unthrown@5.0.0-beta.7: {}
+  unthrown@5.0.0: {}
 
   update-browserslist-db@1.2.3(browserslist@4.28.2):
     dependencies:
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index c9199f84..a1e272ed 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -25,7 +25,7 @@ catalog:
   "@temporalio/worker": 1.20.3
   "@temporalio/workflow": 1.20.3
   "@types/node": 26.1.1
-  "@unthrown/vitest": 5.0.0-beta.7
+  "@unthrown/vitest": 5.0.0
   "@vitest/coverage-v8": 4.1.10
   arktype: 2.2.3
   knip: 6.27.0
@@ -41,7 +41,7 @@ catalog:
   typedoc: 0.28.20
   typedoc-plugin-markdown: 4.12.0
   typescript: 6.0.3
-  unthrown: 5.0.0-beta.7
+  unthrown: 5.0.0
   valibot: 1.4.2
   vitest: 4.1.10
   zod: 4.4.3