* feat(cli): bulk-cancel runs in a single operation
Replace the per-run cancel loop in `workflow cancel` with one `cancelRuns`
call, validate `--limit` (1-500), print a compact outcome summary with
per-run lines for surfaced failures, and exit nonzero only when a run fails.
The bulk logic lives in a dependency-injected `performBulkCancel` helper so it
is unit-testable without an oclif harness.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* fix(cli): address bulk cancel review feedback
* feat(web): bulk-cancel selected runs in a single request
Thread a bulkCancelRuns action through the server action, RPC route,
rpc-client, and client wrappers, backed by core's cancelRuns. The runs table
now cancels the selected pending/running runs in one call, caps a batch at
BULK_CANCEL_MAX_RUN_IDS (disabling the button with guidance above the cap),
and reports a single outcome-summary toast covering only the categories that
occurred.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
* web: infinite scroll for the runs table
Replace Previous/Next cursor paging with front-style infinite scroll:
a useInfiniteList hook accumulates cursor pages with per-run dedup and
generation-guarded resets, and useLoadMoreOnScroll drives loadMore from
an IntersectionObserver sentinel (400px prefetch margin, guarded against
double-fetch, observed against the table's scroll container). Footer now
shows the loaded count and the analytics lookback window.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* web: back the runs infinite list with SWR so tab switches serve from cache
Rewrite useInfiniteList on useSWRInfinite: pages are keyed by
[cacheKey, cursor] in SWR's global cache, so unmount/remount (switching
tabs) restores fetched pages instantly instead of refetching. Revalidation
is conservative because analytics list queries are expensive:
revalidateFirstPage and revalidateIfStale are off; freshness comes from
the Refresh button and the visibility-change auto-reload, which map to
reload() (reset to first page + revalidate).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* world: expose startTime/endTime on analytics runs listing
The workflow-server /v2/analytics/runs endpoint has accepted a bounded
startTime/endTime window since it shipped, and is significantly faster
with one (the window prunes the ClickHouse scan: ~2s for 12h vs ~8s for
the default 30-day entitlement window). The world client never exposed
the params, so the CLI and web UI could only issue windowless requests.
Pass them through so clients can send bounded windows (e.g. a period
picker like front's workflows o11y).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* web: front-style period picker for the runs list
Add a time-window picker (1h/6h/24h/3d/7d/30d, default 24h, URL-backed
via ?period=) that sends an explicit startTime/endTime window through
fetchRuns -> world.analytics.runs.list, keeping the ClickHouse scan
bounded. The window is frozen per selection/refresh so all cursor pages
share the same bounds, and it participates in the SWR cache key.
Plan tiers are honored data-driven from the server's pageInfo: presets
longer than the plan's observability lookback are disabled in the picker
(labeled Observability Plus when an upgrade is available), and a 402
observability-upgrade-required response renders through the existing
upgrade-required error handling. The footer now labels the selected
window instead of the plan lookback. The runtime (local) fallback path
ignores the window since the storage API has no time filter.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* web: allow status filtering without a workflow name filter
The status dropdown was disabled on Vercel backends until a workflow was
selected — a limitation of the runtime DynamoDB API's index design. The
runs list now reads via world.analytics, whose ClickHouse query filters
derived status independently of workflowName, so drop the guard.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* cli: time-window flags for runs listing; widen name lookups past the default window
The analytics backend now defaults windowless runs listings to the
trailing 24h. Replicate the web's window support in the CLI:
- 'workflow inspect runs' gains --since/--until (relative durations like
30m/12h/7d/2w, or timestamps) which are sent as an explicit
startTime/endTime window. Out-of-plan windows surface through the
existing observability-upgrade-required handling; non-analytics
backends warn that the flags are ignored.
- 'workflow start <name>' resolves the workflow's latest run via a
windowless (default-window) listing and now retries across the plan's
whole observability window on a miss, so names idle for more than a
day keep resolving.
- Bulk 'workflow cancel' matches across the plan window up front — a run
can sleep or wait on a hook for days without recent events, so the
default recent window must not bound cancellation matching.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* chore: tighten changeset descriptions
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* web: persist frozen listing windows across remounts; minimize lockfile diff
Address review findings:
- The frozen startTime/endTime lived in component state, but RunsTable
fully remounts on tab switches, so every remount minted a new SWR cache
key — the cached-pages restore never hit and cache entries grew
unboundedly (one per key, including every 5s local-backend poll tick).
Move the frozen windows to a module-scope store keyed by period: a
remount reuses the stored window (same cache key, instant restore), and
the window only advances on explicit refresh/reload. Non-analytics
backends now send no window at all (the runtime APIs ignore it anyway),
which also hides the period picker and window label there.
- Regenerate pnpm-lock.yaml from main so the diff contains only the swr
addition (plus its own use-sync-external-store dependency), dropping
the unrelated docs-importer radix-ui re-resolutions.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
* web: construct worlds explicitly instead of via static-injection stub
Since #2752, createWorld() from @workflow/core/runtime is a stub that
throws unless a framework build plugin aliases it to a world package.
The CLI was migrated to construct worlds directly, but @workflow/web
still called the stub, so 'workflow web' crashed with 'Workflow target
world was not statically injected' for local and postgres backends
(the vercel path was unaffected since it constructs the world directly).
Mirror the CLI: import the local world statically and resolve any other
configured world package from the inspected project's directory.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* web: fall back to default.createWorld for CJS world packages
Review feedback: import() of a require-resolved CJS entry relies on
cjs-module-lexer to surface named exports; fall back to
mod.default.createWorld when detection fails. Mirrored in the CLI in #2806.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
* Add workflow analytics world APIs
* web: read observability list views from world.analytics when available
Route the runs/steps/events/hooks list server actions through the optional
world.analytics namespace when the backend provides one, falling back to the
runtime storage APIs otherwise. Events listing only uses the analytics path
when no payload data is requested. Detail/get actions, streams, and mutations
are unchanged.
* web: keep events and hooks list reads on the runtime storage API
The Events tab and trace viewer derive step names and wait resumeAt from
resolved event payloads, and the hooks table needs the secret token and
ownerId for its resume/copy-token actions. The metadata-only analytics rows
do not carry these, so only the runs and steps list views use world.analytics.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* web: read events list from world.analytics with a runtime-shape remap
The events list/trace consumers read only top-level eventType, correlationId,
and createdAt; event payloads are loaded lazily per event via fetchEvent(...,
'all') on the runtime path. Map the flat analytics event rows into the runtime
Event shape (reconstructing eventData.stepName) so fetchEvents and
fetchEventsByCorrelationId can use the analytics read path when available.
Hooks remain on the runtime path (they need the secret token + ownerId).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* web: list hooks from world.analytics, fetch token on demand
The hooks list now reads from the metadata-only world.analytics namespace
when the backend provides one (falling back to the runtime storage APIs
otherwise). A hook's secret token is no longer shipped in list rows — it is
fetched one hook at a time via world.hooks.get only when the user copies the
token or resumes the hook, keeping the secret out of bulk list responses.
Adds a fetchHookToken server action + RPC, a HookListItem type (Hook without
token), and a lazy HookTokenCell for the copy-token affordance.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* Handle analytics access metadata in web
---------
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
* Add workflow analytics world APIs
* web: read observability list views from world.analytics when available
Route the runs/steps/events/hooks list server actions through the optional
world.analytics namespace when the backend provides one, falling back to the
runtime storage APIs otherwise. Events listing only uses the analytics path
when no payload data is requested. Detail/get actions, streams, and mutations
are unchanged.
* web: keep events and hooks list reads on the runtime storage API
The Events tab and trace viewer derive step names and wait resumeAt from
resolved event payloads, and the hooks table needs the secret token and
ownerId for its resume/copy-token actions. The metadata-only analytics rows
do not carry these, so only the runs and steps list views use world.analytics.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* web: read events list from world.analytics with a runtime-shape remap
The events list/trace consumers read only top-level eventType, correlationId,
and createdAt; event payloads are loaded lazily per event via fetchEvent(...,
'all') on the runtime path. Map the flat analytics event rows into the runtime
Event shape (reconstructing eventData.stepName) so fetchEvents and
fetchEventsByCorrelationId can use the analytics read path when available.
Hooks remain on the runtime path (they need the secret token + ownerId).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* Handle analytics access metadata in web
---------
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
* Add server-backed exact ID search to the Events tab.
Replace client-side substring filtering with API lookups for full correlation and event IDs so searches work beyond the first loaded page.
Co-authored-by: Cursor <cursoragent@cursor.com>
* Fix exact ID search dimming and support wrun_ correlation IDs.
Disable group dimming for server search results and accept run IDs in the exact ID parser so run-level correlation search works.
Co-authored-by: Cursor <cursoragent@cursor.com>
* Fix dimmed row when searching by event ID for run-level events.
Map selectedGroupKey to __run__ for run-level search results so the matched row is treated as related instead of dimmed.
Co-authored-by: Cursor <cursoragent@cursor.com>
* Remove run ID search from Events tab exact ID lookup.
Workflow-server only accepts step, wait, and hook correlation IDs — not wrun_. Update the search placeholder and validation toast accordingly.
Co-authored-by: Cursor <cursoragent@cursor.com>
* Harden exact ID search UX and correlation fetch limits.
Normalize lowercase ULIDs, scope Enter toasts to ID-like input, abort stale searches, disable search when unavailable, expand parser tests, and cap correlation pagination in workflow web.
Co-authored-by: Cursor <cursoragent@cursor.com>
* Fix search clear race and surface truncated correlation results.
Guard successful exact-ID search against aborted requests, invalidate in-flight work when the input clears, and return truncation metadata from correlation pagination.
Co-authored-by: Cursor <cursoragent@cursor.com>
* Differentiate exact ID search errors from not-found results.
Return a discriminated union from onExactIdSearch and show search errors in the Events tab instead of mislabeling them as missing IDs.
Co-authored-by: Cursor <cursoragent@cursor.com>
* Apply suggestion from @VaguelySerious
Signed-off-by: Peter Wielander <mittgfu@gmail.com>
---------
Signed-off-by: Peter Wielander <mittgfu@gmail.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Peter Wielander <mittgfu@gmail.com>
* feat: classify run failure error codes and improve error logging
- Add RUN_ERROR_CODES (USER_ERROR, RUNTIME_ERROR) to @workflow/errors
- Populate errorCode in run_failed events via classifyRunError()
- Update web UI StatusBadge to show amber dot for infrastructure errors
- Improve world-local queue error logging (concise, no body dump)
- Improve schema validation error messages (concise, verbose behind DEBUG)
- Add e2e tests for error code flow and infrastructure error retry
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* feat: add semantic error types to replace HTTP status code checks in runtime
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* feat: classify run failure error codes and improve error logging
- Add RUN_ERROR_CODES (USER_ERROR, RUNTIME_ERROR) to @workflow/errors
- Populate errorCode in run_failed events via classifyRunError()
- Update web UI StatusBadge to show amber dot for infrastructure errors
- Improve world-local queue error logging (concise, no body dump)
- Improve schema validation error messages (concise, verbose behind DEBUG)
- Add e2e tests for error code flow and infrastructure error retry
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* feat: classify run failure error codes and improve error logging
- Add RUN_ERROR_CODES (USER_ERROR, RUNTIME_ERROR) to @workflow/errors
- Populate errorCode in run_failed events via classifyRunError()
- Update web UI StatusBadge to show amber dot for infrastructure errors
- Improve world-local queue error logging (concise, no body dump)
- Improve schema validation error messages (concise, verbose behind DEBUG)
- Add e2e tests for error code flow and infrastructure error retry
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* address PR review comments
- Remove dead `meta` option from TooEarlyError constructor (TooTallNate)
- Extract `throwWithTrace` helper to deduplicate span recording in
world-vercel makeRequest (TooTallNate)
- Restore `maxAttempts` const for stable retry count logging (TooTallNate)
- Fix behavioral regression: add WorkflowAPIError 404 fallback in
suspension-handler hook disposal to handle world-vercel path where
makeRequest doesn't map 404 to HookNotFoundError (TooTallNate)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: translate 404 to HookNotFoundError at the world-vercel boundary
Move the 404 → HookNotFoundError translation into world-vercel's
createWorkflowRunEvent, where we know the event type context. For
hook-related events (hook_created, hook_disposed, hook_received,
hook_conflict), a 404 from the server means the hook was not found.
This removes the WorkflowAPIError 404 fallback from the runtime's
suspension-handler, keeping the runtime fully decoupled from HTTP
status codes.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: parse Retry-After for 425 responses and narrow hook event set
- Parse Retry-After header unconditionally so TooEarlyError gets
the server-provided delay instead of always falling back to ~1s
- Narrow hookEventsRequiringExistence to only hook_disposed and
hook_received (matching world-local's set), since hook_created
and hook_conflict don't imply the hook must already exist
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* rename WorkflowAPIError to WorkflowWorldError
Breaking change: rename WorkflowAPIError → WorkflowWorldError to
better reflect that this error represents world (storage backend)
failures, not HTTP API errors specifically. Updated across all
packages: errors, core, world-local, world-vercel, world-postgres,
workflow, and web.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
CLI showStream:
- Requires --run with --decrypt for encrypted stream decryption
- Warns when --decrypt is used without --run
Web stream reading:
- readStreamServerAction accepts runId parameter for key resolution
- Stream API route reads runId from query param
- readStream client function passes runId to the API route
- useStreamReader hook accepts and passes runId
- run-detail-view passes runId to useStreamReader
Removes getRunIdFromStreamId helper (stream IDs don't always share
the run's ULID, e.g. streams serialized across step/workflow boundaries).
* Add browser-compatible AES-GCM to core and HKDF key derivation to world-vercel
* update changeset
* Move HKDF key derivation server-side: API returns per-run derived key
* Refactor encrypt/decrypt to accept CryptoKey, export importKey for callers to import once per run
* Overload getEncryptionKeyForRun: accept context for start(), fetch WorkflowRun in resume-hook
* Split changeset into per-package descriptions for world, world-vercel, and core
* Remove unnecessary Uint8Array.from() wrapper around Buffer.from()
* Use zod to parse Vercel API response
* fix: restore world-vercel files to main versions
The rebase incorrectly picked up older versions of these files from
early encryption branch commits. The main versions are correct and
up-to-date.
* fix: add type cast for hydrateStepReturnValue return in hook.ts
* Make decryption an explicit opt-in for o11y tooling
* Restore encrypted data handling in o11y hydration layer
* Use EncryptedDataRef with util.inspect.custom for CLI encrypted data display
* Fix Decrypt button crash: use correct 'refresh' callback from useWorkflowResourceData
* Implement client-side decryption for web o11y with getEncryptionKeyForRun RPC
* Fix CLI decrypt: fetch WorkflowRun for key resolution, cache per runId
* Use named constructor pattern for encrypted data display in web o11y
* Decrypt event data when encryption key is available after Decrypt button click
* Lift encryption key to run-level state, auto-decrypt on fetch, fix field pollution
* Re-load expanded event data when encryption key becomes available
* Consolidate Decrypt to title bar Button, remove sidebar decrypt card
* Add hover tooltip to Decrypt button explaining scope and state
* Show flat Encrypted label for encrypted fields, use Lucide Lock icon in DataInspector
* Render eventData subfields individually to avoid encrypted markers in collapsed preview
* Revert: render eventData subfields individually
* Fix Lock icon vertical alignment in DataInspector encrypted label
* update changeset
* Update CLI, web, and stream callers for CryptoKey: importKey at resolution sites
* Pass teamId to the get-key endpoint
* fix: remove unused DataInspector import in events-list.tsx
* fix: restore world-vercel files to base branch versions
Cherry-pick conflict resolution incorrectly took the older opt-in-decrypt
versions of these files, reverting improvements from main (dispatcher,
createGetEncryptionKeyForRun extraction, nullable key response).
* fix: address PR review feedback
- Remove duplicate AttributePanel/EventsList rendering in entity-detail-panel.tsx.
Thread encryptionKey into the existing EventsList render instead.
- Restore missing re-exports (isClassInstanceRef, isStreamId, isStreamRef)
in web-shared/src/index.ts to maintain backwards compatibility.
- Add 'error' to replaceEncryptedWithMarkers field list in web-shared
hydration.ts to match the decrypt path.
- Extend CLI hydration eventData decrypt/placeholder to cover all known
serialized fields (output, metadata, payload) not just result/input.
- Add 'error' to CLI replaceEncryptedWithRef field list.
- Remove invalid encryptionKey option from useWorkflowResourceData call
(hook doesn't support it yet), add TODO.
- Add 4 unit tests for hydrateDataWithKey in serialization-format.test.ts:
encrypted+key decrypts, encrypted+noKey returns raw, non-encrypted
hydrates normally, non-Uint8Array legacy data passes through.
* feat: thread encryptionKey through useWorkflowResourceData hook
Instead of leaving a TODO, implement the encryptionKey support directly:
- Add optional encryptionKey to useWorkflowResourceData options
- When key is available, use hydrateResourceIOWithKey (async decrypt)
instead of hydrateResourceIO for all resource types
- Remove redundant hydrateResourceIO from fetchResourceWithCorrelationId
* fix: address comprehensive review feedback on PR #1256
High priority:
- Gate showStream key fetch on --decrypt flag, warn when --decrypt
used without --run
- Fix workflow-server-actions.server.ts missing cryptoKey params
(undefined for both getExternalRevivers and getDeserializeStream)
- Add hydration + decryption to listEvents (was completely missing)
- Fix error/eventData display: check isEncryptedMarker before
hasDisplayContent so encrypted markers don't silently disappear
Medium priority:
- handleDecrypt: use toast.error() instead of console.error for
user-visible feedback on key fetch failures
- CLI maybeDecryptFields: add try/catch with graceful fallback to
encrypted placeholders + warning, also decrypt error field
- use-resource-data: wrap hook/sleep hydrate() in try/catch to
prevent stuck loading state on decryption errors
- Decrypt button: also check run.error and step input/output for
encrypted markers, not just run.input/output
Low priority:
- event-list-view: add .catch() to re-load useEffect promise
- Export ENCRYPTED_DISPLAY_NAME from hydration.ts and import in
data-inspector.tsx instead of raw 'Encrypted' string
* [workflow o11y] rebase on latest main and keep targeted UI/builders changes
Rebase the branch intent onto latest main by preserving web-shared UI refactors and builders base-builder updates while taking main for hydration and data-fetching behavior elsewhere.
Co-authored-by: Cursor <cursoragent@cursor.com>
* [workflow o11y] align web-shared hydration revivers with main
Revert the hydration reviver delta for URL, URLSearchParams, and Headers so web-shared matches main behavior while keeping the targeted UI/builders-only scope on this branch.
Co-authored-by: Cursor <cursoragent@cursor.com>
* [workflow o11y] restore PR #1017 detail-panel decoupling
Bring the web-shared trace/detail panel files back in sync with main so PR #1017 behavior is preserved and not regressed on this branch.
Co-authored-by: Cursor <cursoragent@cursor.com>
* [workflow o11y] restore PR #1018 react-inspector sidebar updates
Bring web-shared o11y rendering files back in sync with main so ObjectInspector-based sidebar rendering and related UI behavior from PR #1018 remain intact on this branch.
Co-authored-by: Cursor <cursoragent@cursor.com>
* [workflow o11y] keep custom viewers and apply inspector rendering
Preserve the branch-specific event list and stream viewer UX while applying react-inspector rendering to payload/chunk data so complex hydrated values render correctly without reverting custom UI behavior.
Co-authored-by: Cursor <cursoragent@cursor.com>
* [workflow o11y] trace viewer UX improvements and Geist alignment
- Add live tick animation, context menu, and cancel run support from PR #984
- Decouple side panel styling to use Geist design tokens (inline styles)
- Fix sleep span detail panel showing events instead of wait entity attributes
- Fix stream viewer flickering by removing unstable object deps
- Remove Chunks/Output toggle from stream viewer, show only chunks
- Add resolve hook modal, wake-up sleep, and cancel run plumbing
- Add loading skeleton for stream viewer
Co-authored-by: Cursor <cursoragent@cursor.com>
* Bug fixes
* Bug fixes
* Bug fixes
* Bug fixes
* Bug fixes
* Bug fixes
* Bug fixes
* Bug fixes
* Bug fixes
* Bug fixes
---------
Co-authored-by: Cursor <cursoragent@cursor.com>
## Summary
Split the serialization/deserialization logic into environment-specific layers so data hydration can happen client-side in the browser. This is a prerequisite for e2e encryption where decryption keys are only available in the browser.
## Architecture
### Layer 1: `@workflow/core/serialization-format` (new, browser-safe)
- Format prefix encoding/decoding (`devl`, future `encr`, etc.)
- Generic `hydrateData()` dispatch — handles Uint8Array (v2 binary), legacy arrays (v1), and plain values
- `hydrateResourceIO(resource, revivers)` resource-type dispatcher (step/hook/event/workflow field mapping)
- `ClassInstanceRef` (plain data class, no `node:util` dependency)
- `StreamRef`, type guards (`isStreamRef`, `isStreamId`, `isClassInstanceRef`), utility functions (`extractStreamIds`, `truncateId`)
- Shared `observabilityRevivers` for stream/class/step display overrides
- 36 unit tests covering all of the above
### Layer 2: Environment-specific revivers
- **`@workflow/web-shared`** (`lib/hydration.ts`) — browser-safe revivers using `atob()` for base64, real `URLSearchParams`/`Headers`/`URL` instances, `ClassInstanceRef` for UI rendering
- **`@workflow/cli`** (`lib/inspect/hydration.ts`) — Node.js revivers using `Buffer.from()` for base64, `CLIClassInstanceRef` with `util.inspect.custom` for CLI output
Each module exports a pre-bound `hydrateResourceIO(resource)` that uses its environment's revivers.
### Removed: `@workflow/core/observability`
- Deleted `observability.ts` and `observability.test.ts` entirely (no remaining consumers)
- Removed `"./observability"` export from `@workflow/core/package.json`
- Removed the `workflow` package's `internal/observability.ts` re-export
- All functionality has been split between `serialization-format.ts` (shared types/utilities) and the environment-specific hydration modules
## Web package changes
- Server passes raw world data through without hydration (CBOR preserves `Uint8Array`)
- Client calls `hydrateResourceIO` from `@workflow/web-shared` after receiving CBOR-decoded data
- No Vite `node:*` stubs needed since `@workflow/core/serialization-format` is browser-safe
- Optimized: event hydration finds the matching event before hydrating (instead of hydrating all)
- Reduced server log noise from handled API errors (4xx errors no longer logged)
## Packages affected
- `@workflow/core` — new `serialization-format` export (with tests), removed `observability` export
- `@workflow/web-shared` — new `lib/hydration.ts` with browser-safe revivers
- `@workflow/cli` — new `lib/inspect/hydration.ts` with Node.js revivers, updated `output.ts` import
- `@workflow/web` — client-side hydration, removed server-side hydration
- `workflow` — removed `internal/observability.ts` re-export
## Summary
- Replace Next.js App Router with React Router v7.13.0 framework mode (Vite-based), eliminating the large `next` dependency from the web, CLI, and workflow metapackages
- Serve the web UI in-process from the CLI via Express instead of spawning `next start` as a child process
- Switch RPC transport from JSON to CBOR to preserve binary data types across the wire
- Replace `nuqs` URL state management with React Router's `useSearchParams`
- Replace Next.js server actions with an RPC resource route (`/api/rpc`) and a thin CBOR-based client
## Motivation
The `next` package is ~300MB installed and was the single largest dependency in the monorepo. It also required spawning a separate child process from the CLI to run the o11y web server, adding complexity around process lifecycle management, port readiness polling, and environment variable forwarding.
With React Router framework mode, the web package builds to a standard Express-compatible server bundle that the CLI can import and serve directly in its own process.
## What changed
**Framework swap (`@workflow/web`):**
- `next.config.ts` / `postcss.config.mjs` → `react-router.config.ts` / `vite.config.ts`
- `src/` directory → `app/` directory (React Router convention)
- `src/app/layout.tsx` + `layout-client.tsx` → `app/root.tsx`
- `src/app/page.tsx` → `app/routes/home.tsx`
- `src/app/run/[runId]/page.tsx` → `app/routes/run-detail.tsx`
- Path alias `@/` → `~/`
- Removed all `'use client'` / `'use server'` directives
**Data transport:**
- Server actions → RPC resource route at `/api/rpc` with CBOR encoding
- CBOR preserves `Uint8Array` and other binary types natively (no base64 overhead)
- Stream reading → dedicated `/api/stream/:streamId` resource route
**URL state:**
- `nuqs` (`useQueryState`) → `useSearchParams` from `react-router`
**Fonts:**
- `next/font/google` → Geist `.woff2` files referenced directly from `node_modules/geist` via `@font-face` in CSS
**CLI integration (`@workflow/cli`):**
- `import('@workflow/web/server').then(m => m.startServer(port))`
- No child process, no readiness polling, no cleanup handlers
**Radix UI compatibility:**
- `onSubmit` preventDefault on `AlertDialogContent` and `SheetContent` to prevent Radix's internal `<form method="dialog">` from triggering React Router route actions
- Catch-all action on root route for any stray POSTs
## Dependencies removed
- `next`, `swr`, `nuqs`, `@tailwindcss/postcss`
## Dependencies added
- `react-router` / `@react-router/dev` / `@react-router/node` / `@react-router/express` (all `7.13.0`)
- `express`, `vite`, `@tailwindcss/vite`, `cbor-x`, `isbot`, `cross-env`
- `geist` (devDep)
Karthik Kalyan