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feat(studio): steering, threads, mock tour, and the schedules/skills/settings overhaul - #668

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What this is

A day of Studio work on top of the Atrium port, plus the one daemon change it needed. Builds on (and will supersede) #618 the way #618 superseded #548 — this branch contains the full studio/ tree with main merged in, so the diff against main is the complete Studio picture.

Daemon (Go)

Unary HTTP steer endpoints — the ADR 0232 follow-up: POST /v1/sessions/{id}/steer (accepted|appended|too_late; HTTP never promotes — the caller keeps the text on too_late) and POST /v1/sessions/{id}/steer-cancel, the EvSteer drain-echo message_id stamp extracted into one shared helper used by both relays, and the steer capability bit on the HTTP echo. Offline httptest coverage; Service.Steer's gRPC promote path pinned unchanged.

Studio

  • Steer + queue: real mid-run steering; Enter queues by default, Shift+Enter steers (Settings → Chat flips it); pending-steer strip with watermark splitting; a double-send race (approval-resume vs orphan-requeue) was caught by adversarial review and fixed.
  • Threads: side threads genuinely converse (parent-seeded daemon session per thread), Slack-style reply indicators, thread sessions hidden from the chat list/search — the indicator is the only way in. Header heights normalized to one seam.
  • Composer: permission-Mode selector (Default/Plan/Accept edits) before Model/Memory; attachment pills get image thumbnails + type icons; labels collapse via container queries in narrow panels.
  • Labs / mock tour: default-off, clearly-labeled demo chat showcasing file cards + a canvas panel with code/markdown/image/PDF renderers and attachment previews — zero daemon traffic (rule 1 amended for this sanctioned exception).
  • Schedules: sortable table + segmented filters, kebab actions (incl. Edit + rename-after-create), prompt-first detail with grouped fact cards, human-readable cron builder with a Custom escape hatch, split date+time one-shot picker with presets, "fire"→"run" language, mobile collapse.
  • Skills: alphabetical sortable table, segmented All/Enabled/Disabled, full controller-mediated management (create via upload or editor, edit, enable/disable, delete) with one shared name grammar, CSRF gating, restart-honest confirmations, and external-mode 409s pinned in the hermetic suite; mobile collapse.
  • Settings: visual refresh across all pages keeping structure and the e2e-pinned copy; new Chat + Labs sections; theme-safe error page.
  • Shortcuts: registry-driven bindings (layered Esc, Mod+N/,/K//) with the derived help page.

Merged origin/main (steer-while-running #570, session-storage #645 etc.); the Studio ADRs were renumbered 0233/0234 to resolve the collision with main's 0228–0232.

Gates

  • task lint green; task test green except two pre-existing internal/adapter/store/jsonlstore failures that reproduce identically on a clean origin/main checkout on macOS (the atomic-replacement probe vs the /tmp symlink) — not from this branch.
  • Studio: biome/tsc/knip clean, 207 vitest tests green, hermetic server suite 6/6, matlatl check --strict clean, llms.txt regenerated.
  • Follow-up tracked: unread-activity indicators (#667).

🤖 Generated with Claude Code

jtenniswood and others added 30 commits August 18, 2026 14:11
Vendor drop of the Atrium workspace UI from
stacklok/enterprise-ui-prototypes @ claude/atrium-ui-updates (649bc1efb91f889e117c79f4189d8abba34c22d4),
filtered before import so prototype residue never enters this repo's
history. Every imported file is byte-identical to its source.

Excluded at import (413 of 572 tracked files):
- auth stack (better-auth/pg/OIDC), signin flow, permissions context
- legacy ai-sdk assistant sidebar, /api/chat, MCP client wiring
- MSW mock server, mock OIDC/registry/user-management routes, hey-api
  generated clients and their OpenAPI specs
- Atrium demo data (features/agent/mock-data.ts, skills fixtures):
  Studio is daemon-only; probe failure renders offline, never demo data
- disk-touching harness routes (skills/agents authoring deferred to a
  follow-up; transcript route superseded by the daemon transcript API)
- prototype deploy/repo infra (Docker, helm, GitHub workflows, husky,
  renovate, pnpm lockfile/workspace) and residue tests/e2e specs

The app does not build at this commit; wiring lands in the commits that
follow. The complete filter manifest is recorded in the pull request.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Eight imported files carried `SPDX-License-Identifier: Proprietary`
headers — stray artifacts of the source repository's
enterprise-platform sync that contradicted its own Apache-2.0 LICENSE.
This repository has no SPDX header convention of its own; the headers
are corrected to Apache-2.0 — the license the source repository
actually grants this content under — rather than dropped, so the
imported files keep their provenance visible.

Kept separate from the vendor drop so the relicensing is auditable on
its own. A CI grep gate (added with the studio workflow later in this
series) rejects Proprietary headers so they cannot regress.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Turn the imported prototype into mecatl-studio:

- package.json: rename, prune every residue dependency (ai-sdk stack,
  better-auth/pg, msw/express/oidc-provider, hey-api, dexie, redoc,
  archiver/tar-stream, ...), npm with a regenerated package-lock.json,
  pnpm security overrides translated to npm `overrides` (kept only for
  packages still present in the tree), engines >=22.13, .nvmrc 22.22.0,
  drop husky/lint-staged (git hooks in a Node subdir of a Go monorepo
  would hijack .git/hooks for every contributor; CI is the enforcement
  point).
- next.config.ts: keep the strict security headers; drop standalone
  output, mock rewrites, tracing includes, and the /api/proxy CSP
  carve-out (all served the deleted deployment).
- Flatten the (authenticated) route group: its only job was
  verifySession. src/app/workspace/layout.tsx keeps the shell without
  PermissionsProvider/assistant/config-server gates.
- client-providers: drop the connector-status demo context; keep
  next-themes + Toaster + the Suspense boundary useSearchParams needs.
- Root layout/metadata rebranded to Mecatl Studio; mock-scenario dev
  panel unmounted.
- vitest/knip/tsconfig/biome/playwright configs trimmed of deleted
  paths (MSW setup, auth env pins, @api/@Mocks aliases, generated-file
  overrides); .npmrc (pnpm-only settings) removed.
- src/lib/utils.ts reduced to cn(): the other helpers parsed ToolHive
  registry metadata via the deleted generated types (their test file
  covered only those helpers and goes with them).
- Restore three files the import filter over-matched, byte-identical
  to the source branch: workspace/_components/{chat-input.tsx,
  composer-mentions.ts,resize-handle.tsx} and
  src/components/brand-logo.tsx (+ test).
- TEMPORARY typed-empty shims for the excluded demo fixtures
  (features/agent/mock-data.ts, skills/_data/skills.ts) keep the
  not-yet-converted hooks compiling; the daemon-only hook rewrite
  deletes both. The mock-data-bound e2e spec and search-data test are
  removed; their daemon-backed replacements land with the test suite
  later in this series.

next build, tsc --noEmit, biome check, and vitest (44 tests) are green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Replace the prototype's permissive /api/harness* proxies with the
Studio server tier from feat/studio-module (PR #548), carried
near-verbatim:

- src/lib/server-proxy.ts — Host/Origin/CSRF trust gate, header
  allowlists in both directions, server-side bearer injection in
  external mode, managed/external mode switch (MECATL_BASE_URL
  presence), controller mutations tagged with the server-set
  x-mecatl-studio-request header, daemon-unreachable mapped to a
  friendly 503. New here: workspace injection for POST /v1/sessions
  and /v1/teams (managed: from controller /status; external: from
  MECATL_WORKSPACE), adopted from the prototype's proxy so the
  browser never learns or chooses the workspace path.
- src/lib/controller-security.mjs — verbatim: controller CSRF +
  DNS-rebinding policy and MCP gateway egress validation.
- scripts/local-controller.mjs — verbatim (import path only): the
  managed-mode supervisor. Random loopback daemon port, generated
  bearer, restart/rollback queue, model-router and operator settings,
  MCP gateway OAuth with the unguessable loopback proxy.
- scripts/dev-local.mjs — verbatim: process orchestration and the
  managed/external switch; npm scripts now match the old studio's
  (dev, dev:web, mecatl, start --production).

Routes are the old studio names: /api/mecatl/[...path] and
/api/mecatl-control/[...path]; the browser client only changes its two
base-path constants. In external mode /api/mecatl-control synthesizes
/status and answers 409 for every other control path.

Env inventory is the old studio's exactly (MECATL_BASE_URL,
MECATL_AUTH_TOKEN, MECATL_WORKSPACE, MECATL_STUDIO_PUBLIC_ORIGIN,
MECATL_STUDIO_ORIGINS, MECATL_STUDIO_PROVIDER,
MECATL_ALLOW_INSECURE_LOOPBACK_MCP); the prototype's MECATL_URL,
MECATL_CONTROL_URL, MECATL_ALLOW_REMOTE, MECATL_SKILLS_DIR and
MECATL_STORE_DIR are gone, documented in .env.example.

The client functions still pointing at the removed disk routes
(/api/harness-skills, /api/harness-agents) are pruned with the hook
rewrites later in this series.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
One wire seam under src/lib/protocol/, the only reader of raw daemon
JSON. The base is the old studio's tested decoders; the session and
schedule halves re-land the closed PRs #615 and #616 designs; the
event translation replaces the prototype's looser inline translate().

- events.ts: parseMecatlEvent (structural, throw-on-missing-type) +
  translateEvent. The terminal `result` frame now always reaches the
  UI: stop, error text, and permanence ride a run_result StreamEvent —
  a failed turn must render as failed, never as an empty success.
  Usage carries all five token fields. permission.retract withdraws
  its ask. subagent.start / team.start roster / parallel.branch starts
  become delegation badges; advisory kinds (tool.progress, compaction,
  provider.route, recover_notice, no_progress) become one-line
  notices; and an UNKNOWN event kind is surfaced as "not rendered
  yet", never silently dropped.
- sessions.ts (#615): SessionSummary with capability-driven actions
  (omitted capability = denial, closed per-action reasons,
  inspect_only_kind as the one not-a-chat reason), bounded-cursor
  inventory pages, and the authoritative message-level transcript
  decoder.
- schedules.ts (#616): full spec decode (protojson AND stdlib-JSON
  shapes for timestamps, durations, enums), fire-stage inference with
  the "pending" claim sentinel, fire-history decoding (newest first,
  in-flight keyed off the absent stop), and encodeScheduleSpec — the
  protojson request builder with the carried-spec round-trip, because
  PUT replaces the whole spec and responses can never be echoed back
  as requests.

client.ts rides the seam: streamHarnessPrompt gains the 120s idle
timeout and the saw-result guard (a stream that closes without a
terminal frame throws); approvals send the daemon's three-way verdict
(allow_once / allow_always / deny); new wrappers cover the session
inventory walk, rename (adopting the clamped title echo), delete,
transcript, schedule rows/fires/save, and slash-command discovery
(workspace query injected by the proxy, like session bodies).

26 decoder/translation tests pin the invariants, including the
protojson-request/stdlib-response asymmetry and the carried-field
round-trip.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Delete the demo layer entirely: the mock-data shim is gone, and no hook
fabricates content when the daemon is away. An unreachable daemon is now
a rendered state, never demo data.

- RuntimeStatusProvider (features/agent/runtime-status.tsx): one
  connection authority polling the daemon and controller every 5s,
  replacing eleven independent one-shot probes that could disagree and
  never noticed a daemon dying after mount. Offline renders a shell
  banner naming the fix, with Retry; surfaces gate their loads on it
  and reload on reconnect. It also refreshes the composer capabilities
  on every reconnect.
- use-agent-sessions: the chat list is the daemon's session store.
  Bounded cursor walk + 20s poll; rows removed only when a COMPLETE
  walk proves them gone; non-chat rows (subagents, team members,
  scheduled fires) filtered by the decoder's inspect_only_kind rule;
  rename optimistic with rollback, adopting the daemon's clamped title
  echo; delete daemon-backed with the 404-only-removal rule; action
  eligibility read from row capabilities, never re-derived.
- use-agent-chat: the sidebar id IS the daemon session id — the lazy
  UI-id→daemon-id map is gone. Opening a chat rehydrates from the
  authoritative transcript endpoint (incomplete transcripts say so).
  A null id is a draft whose session is minted on first send. Handles
  the full translated stream: failed turns render failed (permanent
  errors say so), permission retractions withdraw their ask, notices
  and delegation badges accumulate on the turn, usage keeps all five
  token counts, and retryLast() resends the last prompt after a
  failure.
- use-agent-cron: schedule registry only, via the protocol decoders;
  "scheduler not wired" (the daemon's own error) is distinct from an
  empty registry; every action re-reads durable state; quick-create
  builds a plan-mode, non-mutating spec; full rows (mode, mutating,
  workspace, carried spec) exposed for the schedules surface.
- use-agent-memory: user-model index with size/sha metadata; a daemon
  running --no-user-model is a distinct disabled state; the mock edit
  path is gone (memory is read-only by construction).
- use-agent-roster: the daemon's resolved subagent inventory.
- use-agent-projects: placeholder — the daemon has no project concept;
  the grouping UI goes with the sidebar rework.
- composer-capabilities: @-mentions from GET /v1/agents and /-commands
  from GET /v1/commands (workspace query injected by the proxy, which
  now also injects workspace into schedule creation bodies).
- atrium-search-data: fixture index removed; the live index lands with
  the surface wiring.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Chats — the flat server-backed workspace. The project/agent grouping and
every demo flow are gone; the sidebar is one recency-bucketed list of
daemon sessions (Today / This week / Earlier) with rename/delete gated
by row capabilities and the daemon's refusal reasons shown, never
re-derived. "New chat" is a draft route; the daemon session is minted on
first send and the URL adopts its id. Failed turns render as destructive
alerts (never empty successes), notices and delegation badges ride the
turn, approvals offer the daemon's real three-way verdict, an error
strip offers Retry, and the header shows live token usage.

Scheduled — full authoring and audit. The create/edit dialogs share one
form: cron + IANA timezone + max fires XOR one-shot + retry, and an
explicit "allow file and shell writes" opt-in that couples mutating with
a write-capable mode so the invalid pairing is unconstructible; edits
seed from the stored row and round-trip its carried spec (PUT replaces
the whole spec). Rows carry mode/mutating/workspace/owner badges and
fire-stage indicators; the detail page shows the real fire log (newest
first, in-flight tracked, refusals verbatim) with per-fire transcripts;
"not wired" is distinguished from "empty" using the daemon's own words.

Skills — the resolved inventory, read-only: provenance badges (learned
vs workspace), and an honest note where SKILL.md content used to be —
the client tier has no body-read endpoint.

Memory — three honest states (disabled with the daemon's reason, empty,
populated), store footprint (bytes + sha prefix), no editing
affordances, and no fabricated timestamps.

Settings — appearance/notifications plus the runtime sections: provider
status (read-only; credentials never enter Studio), the full model
router editor with the operator-settings lock, and MCP gateway connect
with a user-entered, controller-validated URL (bearer or OAuth with
status polling). External mode renders all three as owned by the
deployment.

Global search indexes live data (sessions, schedules, skills, memory
keys) built per palette open; transcripts are not indexed.

Rides a new hermetic server-tier suite (tests/rendered-html.test.mjs):
a real production build in external mode against a fake recording
daemon proves bearer injection, workspace injection, the CSRF 403, the
external-mode 409 policy, and that an unreachable daemon is a friendly
503 — plus the controller CSRF/DNS-rebinding truth table and gateway
egress validation. Dead prototype residue flagged by knip is deleted
(fixture data, orphaned components, unused exports, date-fns/zod).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Five Playwright smokes drive the production build in external mode
against a fixture mecated (tests/e2e/fixture-daemon.mjs) — a test
double behind the API seam, speaking the daemon's real wire shapes
(stdlib-JSON responses, SSE prompt relay), which is not the UI-level
demo fallback Studio forbids. The specs assert daemon-sourced renders:
the chat list and rehydrated transcript, schedule posture badges, the
skill inventory, the read-only user model, and external mode marking
runtime settings as deployment-owned.

The suite immediately earned its keep: the browser client's base path
had silently lost its /v1 prefix in the proxy graft (the prototype's
proxy used to rewrite /api/harness/* onto /v1/*; the grafted tier is
transparent), so every daemon call 404'd in a real browser while unit
and server-tier suites — which speak full paths — stayed green. The
prefix now lives in the client's own URLs.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- .github/workflows/studio.yml: path-scoped to studio/**; SHA-pinned
  actions; Node from studio/.nvmrc with the npm cache; installs run
  --ignore-scripts (nothing in the tree needs install scripts, so the
  supply-chain surface stays off in CI). Job "checks" runs biome,
  tsc, knip, the vitest suite, the production build plus the hermetic
  server-tier suite, npm audit --audit-level=high, and a grep gate
  rejecting Proprietary SPDX headers. A separate "e2e" job runs the
  Playwright fixture-daemon smokes so a browser-infra flake never
  masks the checks.
- dependabot: the repo's first npm entry, for /studio (weekly,
  minor+patch grouped, matching the gomod grouping style).
- Taskfiles: the root include gains the studio namespace; the studio
  Taskfile carries the supervisor-aware dev/stop/restart/status tasks
  (stop kills the controller first so it tears down its mecated
  instead of orphaning it) with test/lint retargeted to the new stack.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- ADR 0228 — Studio: the Atrium workspace as mecatl's daemon-only web
  client. The module boundary (a Node module, never a Go module), the
  two pure deployment modes, the daemon-only rule (offline is a
  rendered state, never demo data), the single typed wire seam, the
  inherited security posture, the deliberate non-features, and the
  toolchain. Subsumes the unmerged ADR drafts from PR #548.
- ADR 0229 — Studio's chat list is the daemon's session store: the
  sidebar id IS the daemon session id, complete-walk removal, clamped
  rename echoes, capability-driven actions, draft-on-first-send, and
  the stated costs (mtime reordering, synthetic transcript turns, no
  live re-attach over HTTP). Re-lands the design from PR #615.
- AGENTS.md gains the studio component bullet with the same-PR
  wire-break rule; docs/architecture.md gains the Studio client
  section; PRODUCTION-READINESS gains the Studio row with its open
  deferrals; user-docs/what-you-get/studio.md is the operator guide;
  studio/CLAUDE.md carries the rules-that-have-teeth list, each named
  to its backing test. llms.txt regenerated.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
CI's Node 22 ships npm 10, which rejected the lockfile a local npm 11
wrote (`npm ci`: missing transitive typescript peer). The lockfile is
regenerated with npm@10.9.4 — the toolchain CI actually runs — and
`npm ci --ignore-scripts` is verified against it.

The audit gate then flagged the postcss vendored inside next@16.2.11
(GHSA-qx2v-qp2m-jg93 and friends, high): fixed upstream in
next@16.3.1, the version the previous studio module already ran.
Bumped; the react-compiler build, unit, hermetic, and e2e suites all
pass on it, and `npm audit --audit-level=high` exits clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The freshness gate regenerates llms.txt and diffs; the Studio row added
to PRODUCTION-READINESS after the previous regeneration shifted the
link graph.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…lish

Settings becomes five subpages behind a left secondary nav (Appearance,
Notifications, Provider, Model router, MCP gateway) instead of one long
scroll, each still backed by the same shared useHarnessRuntime instance
so the runtime sections share one status/busy/error channel.

New browser-local identity preferences (src/lib/profile-preferences.ts —
cosmetic only, nothing here has a daemon concept to write back to):
- Agent display name (defaults to "Mecatl", was hardcoded "Assistant"
  everywhere), editable from Settings → Appearance.
- User avatar: a person-icon placeholder by default, replacing the
  prototype's broken remote portrait (blocked by our own CSP — this was
  also silently killing the whole message list, since the crash inside
  <UserAvatar> was swallowed by an error boundary with the transcript
  rehydrated behind it). Upload stores a small local data URL; no
  daemon endpoint exists or is implied.
Both render in a new two-group "Profile" card ("You" / "Agent").

Provider settings gain real visibility without adding a credential
path: the controller now line-scans auth.yaml for provider block NAMES
only (never values, never a full YAML parse) and reports them plus
which one MECATL_STUDIO_PROVIDER currently selects. The Provider page
lists them, marks the active one, and states the exact file + env var
to add or switch — credentials still never cross the browser/controller
boundary (ADR 0228), so no add/remove-provider UI was built.

provider.route events move from an advisory notice to silent: routing
detail ("Azure", a raw provider name) was leaking under assistant
turns as noise with no actionable content.

Empty-state polish: Skills and Scheduled get an icon, human copy, and
(Scheduled) a working create CTA inline, replacing a bare line of
muted text. Memory drops its footer store-footprint line, its two
explainer paragraphs on the list and detail pages, and the Refresh
button (the runtime-status provider already reloads it on reconnect).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…gs e2e

The settings-subpages commit carried a package-lock.json regenerated by
a local npm 11, which deduped away a transitive typescript entry npm 10
requires — the same desync fixed once before. Regenerated with
npm@10.9.4 and pinned `packageManager: "npm@10.9.4"` so corepack-aware
setups stop reintroducing it.

The same commit moved the runtime settings sections to their own
subpages, which orphaned the external-mode e2e assertion still visiting
/workspace/settings; it now targets /workspace/settings/provider.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…sion list

Implements the new workspace shell from Figma (node 4:2): the left rail
is gone. A 64px top navigation bar sits on a fixed dark-green radial
gradient — white Stacklok mark, the five surfaces as a pill nav (active
route renders as a light-sage pill with icon + label; the rest are
icon-only with tooltips), and the ⌘K global search styled as the
design's search field. All five surfaces render inside one rounded
20px card that follows the theme; the gradient shell is identical in
light and dark.

The chat workspace flips: conversation on the left (title in a 64px
card header, content and composer on the design's 768px measure),
"Session List" on the right — recency-bucketed daemon sessions with
the design's row treatment (3px brand accent + tint on the active row,
muted relative times, a pulsing brand dot for running sessions) and an
AGENTS section fed by the daemon's real GET /v1/agents roster
(clicking one starts a new draft). The resize handle and collapse,
keyboard shortcuts, capability-gated rename/delete, and the draft
mint flow all carry over mirrored.

Design content with no daemon backing is deliberately not fabricated:
the mock PROJECTS folders render as recency groups per the base PR's
decision, and the "New project" button, notification bell, and
per-agent chat nesting are dropped.

The old shell (console-shell, shell, navbar, nav-drawer, rail sidebar)
and its orphaned hooks are deleted; ShortcutsProvider moved into the
workspace layout; nav config consolidated into one nav-items module.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…ist bound

The conversation and composer keep the 768px measure but hug the pane's
left edge instead of centering; the session list's resize clamp rises
from 500px to 720px.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Sending from a draft minted the daemon session and router.replace()d
/workspace/chat to /workspace/chat/<id> — but moving the optional
catch-all from zero segments to one changes the route shape, so Next
remounts the page. The remount replaced the chat hook instance
mid-stream: tokens rendered into unmounted state and the pane sat
empty until a reload (the prototype's own comments warned about this
remount; its mock module-stores existed to survive it).

The URL now updates with native history.replaceState, which the App
Router syncs without remounting, so the in-flight stream keeps its
state and renders live.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- A brand-colored spinner sits left of the chat title while a response
  streams.
- The session list and the thread/file side panels now share one
  persisted resize setting (usePanelWidth, localStorage-backed,
  200-720px): resizing either carries to the other and survives
  reloads. The side panel previously reset to a hardcoded width every
  open.
- Approval action badges key by position: parsed actions can repeat or
  parse without a verb, which produced duplicate React keys.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Dark mode deepens each stop of the green radial gradient so the shell
recedes behind the dark card instead of outglowing it; light mode keeps
the design's original stops.

A draft chat now renders the same 64px title bar as an open chat
("New chat" + the sidebar toggle) instead of a bare centered composer
with a floating button.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
task studio:dev re-runs the fingerprinted install task whenever
package.json changes — with the system npm on PATH. An npm 11 there
rewrites the lockfile in a shape npm 10 (what CI's Node 22 ships)
rejects, which has now broken npm ci twice. The install command runs
through npx npm@10.9.4, matching the packageManager pin.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
A new browser-local preference (Settings → Appearance → Session list
position) moves the session list to either side of the chat. The
docked panel, the compact overlay, the resize handle's drag direction,
and the panel-toggle icons all follow the chosen side; the thread and
document panels stay on the right regardless. The Appearance page's
theme picker is regrouped alongside the new control as labeled pill
rows.

Also aligns the resize handle's default max width (720px) with the
shared panel-width store's clamp — dragging previously stopped at the
handle's stale 500px cap.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
When the session list is on the left, its toggle renders leading in the
chat header (before the generating spinner and title); when right, it
stays in the trailing action cluster.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The approval badges' index-in-key tripped noArrayIndexKey at error
level in CI (the ids are now precomputed per row, the pattern the
message bubbles already use), and the side panel's drag effect needed
its stable setWidth in the dependency array.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…ns, working tap-to-open

The shell's CSS gates used Tailwind's sm: (640px) while the JS hooks
call <500px mobile; they now agree on 500px (min-[500px]: variants).
The gradient edge margin halves below the breakpoint (10px vs 20px).

Tapping a chat row on a phone did nothing: useIsMobile is undefined on
the first render, so sidebarOpen initialised as if on desktop, and the
row's router.push changed the optional catch-all's segment count —
remounting the page and re-running that init, so the list rendered
straight back over the chat. Selection now uses native
history.pushState (no remount, the draft-mint precedent) and a
measured-mobile effect closes the list over a selected chat on mount.

The search palette becomes a full page below the breakpoint — the
on-screen keyboard eats half the viewport, so a floating dialog leaves
no room for results.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Web app manifest (standalone display, /workspace/chat start URL, brand
theme/background, 192/512/maskable icons generated from the logo mark
on a solid brand ground), apple-touch-icon + appleWebApp metadata, and
a viewport export with media-queried theme colors matching the shell
gradient plus viewportFit cover for the notch.

Deliberately no service worker: Studio is a local daemon client, so
offline caching would lie about live state — and installability no
longer requires one on Chrome and never did on iOS.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…ns, focus

Bottom sheets follow mobile conventions: full-bleed with square
corners, no X button, a centered grab handle, iOS safe-area padding,
and dependency-free drag-to-close (handle or unscrolled body; >25%
height or a flick dismisses, taps and scrolls are untouched).

Threads (and file/canvas panels) now work on mobile: the same desktop
panels render maximized inside a 94dvh bottom sheet with their window
controls hidden — the grab handle owns dismissal — so the thread
composer sits above the on-screen keyboard.

Message actions: the hover-only reveal gains a touch path — a
horizontal left swipe on a message reveals the action row, right swipe
hides it. The Edit pencil is gone on all form factors (the daemon has
no message-edit capability; it was prototype residue).

The thread composer gains parity with the main one (model selector +
memory control), and entering a chat or thread focuses the input:
tiptap autofocus on mount plus a focusKey refocus when the open chat
changes.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The five surfaces move to a native-style bottom tab bar on mobile
(Material-3-style: light pill behind the active icon, small always-on
labels, safe-area padding), sitting on the same green gradient; the top
bar keeps only logo + search there. The gap between the content card
and the bar is trimmed to a sliver.

Settings gets a native mobile IA: the index renders grouped inset lists
(icon chip, label, chevron) linking to each subpage, and subpages show
a "back to Settings" header with the section's own title. Desktop keeps
the left secondary nav and lands on the first section via a client
redirect (the viewport decides, so the server can't). Profile splits
out of Appearance into its own page on both form factors, and the
section inventory is shared from one module so the nav, the drill-down
list, and the back-header can't drift.

Also drops the sheet base's gap-4 on bottom sheets — the grab handle's
own padding is the only space wanted above sheet content, which was
padding the thread title down.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…eaner copy

Mobile settings subpages swap the back-link + big title for the chat
header pattern: a full-bleed h-16 bar with a back arrow and the section
title. The desktop secondary nav now pivots on the same 500px edge as
the mobile drill-down list (hidden + min-[500px]:flex, not
max-[499px]:hidden), so a fractional viewport width can never render
both at once. Tab bar labels drop leading-none — truncate clips
overflow, so the line box must clear descenders.

The profile picture no longer rejects large files: the browser
downscales any image to a 512px-longest-edge JPEG before storing it.

Settings copy diet: card descriptions and how-it-works paragraphs are
gone across all six pages. What stays is functional text only — offline
and unconfigured-state recovery notes, the operator-managed refusal,
error/notice channels, and the one warning a rule requires (writes that
restart the daemon say so).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The mobile settings index adopts the inset-grouped-list convention:
filled cards with no border, a solid per-item tinted icon square with a
white glyph, hairline dividers inset to the text edge, and tighter
46px rows.

Memory leaves the top-level nav (top bar and mobile tab bar both read
the one nav config) and becomes a settings section on both form
factors: /workspace/settings/memory with the entry detail beneath it.
Old /workspace/memory URLs redirect. Section resolution is now
prefix-aware, so a memory entry keeps the desktop nav highlight and
gets the mobile back header — whose arrow now goes up one level (entry
to list, list to index) instead of always to the index. The inline
Back button hides on mobile where that header covers it.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
A little gap between top-nav pills so hover and active states don't
touch. On mobile the schedules create button shortens to "New" (the
full label was truncating the page title) and the session-list
position control hides (the list is full-screen there).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
jtenniswood and others added 28 commits August 20, 2026 11:21
The You and Agent cards drop their subtitles and share one grammar:
label-left rows with short descriptions (Your name / Agent name /
Picture) and the avatar + change button as the right-hand control. The
add-provider dialog becomes an explicit three-step guide (choose,
paste-into-file with the path and <YOUR_KEY> note, save + Re-check);
its tests follow the new copy and the management fake supplies the
active-provider switch.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…utton

The mock-provider notice and the error banners float in the composer
stack over the transcript, but their 5% tints had no solid base — the
messages bled through. background-color + the tint as a flat gradient
keeps the token color and goes opaque. The global search input gets a
short placeholder ("Search…") and pr-8 so text never runs under the
dialog's close button.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
One structure across settings: SettingsCard + divided label-left /
control-right rows (gateway, model-router's top controls, Labs,
provider header blocks), with the per-category router editors kept as
row-spanning blocks where a 1:1 conversion would fight the form. The
Refresh control is deleted from runtime-status-line universally (the
spinner and error/notice channel stay; it renders nothing when quiet).
Labs' "Show mock features" OFF now switches the daemon back to the
first configured real provider when it was genuinely on the mock —
inline progress, verbatim errors, inert in external mode or when
already on a real model.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
POST /providers/active reassigns the active provider and restarts
mecated on the spot, and /status gains isMock — the server half the
already-committed client switch and Labs coupling call into.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Tailwind's animate-bounce translates 25% of the element's own height —
a 1.5px twitch on a 6px dot. A dedicated keyframe hops a fixed 5px with
squash-and-stretch easing, staggered per dot as before.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…olls

User messages stay plain text, but the one deterministic markdown shape
the app itself composes — a leading "> " block from add-to-chat and
thread-root quoting — now renders as a styled blockquote above the
user's words (pure splitter, tested). And the maximized side panel
gains min-h-0 so it constrains inside the mobile bottom sheet instead
of outgrowing it, letting the thread body's overflow-y-auto actually
scroll.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The strip renders as a single divided container (pending steers first,
then the queue) on a solid background instead of stacked translucent
panels, and each queued row's Steer/Edit/Delete moves under a ⋯ menu.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…d fixes

- The composer's model menu lists the daemon's live models (Studio-side
  disabled set respected) with a daemon-picks sentinel labeled
  "Auto-routed" only while the model router is actually enabled
  ("Default model" otherwise); a draft's pick rides session creation as
  model_id, and live sessions show their real model in the locked slot.
- Thread panel gains the selection toolbar ("Add to thread" only); the
  main toolbar's second action reads "Ask in a chat thread"; nested
  quote markers collapse so re-quoted text shows words, not markup.
- Chat, draft, and thread composers share one gutter (px-3 lg:px-4
  pb-4).
- Add-provider dialog: Done + Re-check as pills, the copy icon lives
  inside the code box, and the helper text is one human sentence naming
  the file, the providers: key, and the placeholder swap.
- MCP gateway card is a plain stacked form again (labels above
  full-width fields, no dividers).
- Provider model lists are dedicated pages at /workspace/provider/{name}
  (old settings-nested URL redirects).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The steer drain echo now SPLITS the stream: the injected message lands
as a user turn and a fresh assistant bubble takes every later token, so
the reply to a steer renders below it instead of the pre-steer bubble
silently growing above — the "steering doesn't seem to do anything"
illusion. The provider page collapses to a single list: real providers
plus the built-in mock as a first-class row (active + running chips on
whichever is live, Set as active in each kebab), Add provider above the
list, and the status block / auth-file line / Switch-to-mock button all
gone.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…nity

Steering is now invisible plumbing: an accepted steer renders your
message directly in the transcript (no holding panel, no "steering…"
chip — pendingSteers is internal watermark bookkeeping only), and at
the drain boundary the bubbles move to sit right above a fresh
assistant bubble so the reply streams below them. Orphaned steers pull
their bubbles back out when the text requeues.

The "already has an active run" failure: a parked approval left the
composer thinking no run was live, so Enter fired a raw prompt into the
daemon's funnel. Run-active now includes waiting_approval, and
sendMessage queues (never fires, never drops) whenever a run is live —
defense in depth under the composer's own routing.

The approval panel stops badge-ifying every line of the tool's args (a
Write ask's file content became hundreds of "Tool ·" pills, and content
words like "delete" painted it destructive): one pill naming the tool,
destructiveness judged on the tool name, args in a clamped scrollable
preview.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
A Write tool call carries the produced file in its args, so the
assistant turn now shows each written file as an attachment chip
(deduped by path, last write wins, full path on the tooltip) that opens
in the canvas preview with the markdown/code/image routing. One shared
fileFromToolCall derivation feeds both the live stream and transcript
rehydration; Edit calls are deliberately skipped (their args don't
carry the final content, and a card that can't preview is a dead end).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
A live capture showed Write args carry "path", not "file_path" — the
derivation read the wrong key so no chip ever rendered. Both spellings
are accepted now, pinned by a test using the daemon-shaped args.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The classifier and category selects filtered models to the ToolHive
gateway's provider id — a leftover from the gateway-coupled design that
blanked both dropdowns on any plain-provider deployment. The daemon's
live model listing is the routable set, so the pickers now offer it
(minus Studio-side disabled models), and an already-saved id still
survives via ModelSelect's keep-selected fallback.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The Personalize page carries theme, scale, session-list side, and the
Enter-while-replying behavior; the Messages section is gone (its URL
redirects) and every cross-reference follows.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
One row on Personalize: the Enable button plus a bell-icon test button
beside it (enabled only once granted); the standalone Notifications
section is gone and its URL redirects.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The router page discloses progressively: off = a single switch; on =
the classifier row plus a separate Categories card. Categories render
as stacked rows (name, model badge, description) with the default
pinned first and badged; each row's kebab offers Set as default / Edit
/ Delete, and create/edit happens in a full-screen-on-mobile modal
whose own validation keeps bad categories out of the draft. The
default-category select is gone (rename follows, delete clears);
validation stays load-bearing but only speaks while routing is enabled
(or as an honest incomplete-setup line when a dirty invalid draft
cannot be saved even disabled). Model dropdowns use the standard sans
font; the illustrated empty state owns the first Add. On Personalize,
every right-hand control shares one w-44 footprint (selects, the scale
stepper, and the notification enable + bell-test pair).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Sent image attachments carry their wire bytes as data: URLs, so the
message chips show thumbnails and open a real canvas preview instead of
"No preview available". Composer pills are clickable too (object-URL
lifecycle managed, no blob leaks), and both surfaces share the brand
palette. Attachments no longer vanish after a reply: the transcript
carries no bytes, so a session-scoped record of what this visit sent
re-attaches them on every rehydrate, matched to user turns in send
order.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The dots shrink to size-1 and center inside the avatar column; the
phase label starts exactly where message text does.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…vider

Sent-attachment bytes persist per session in IndexedDB (bounded to the
last 20 sends, fail-soft to session-only memory), and the rehydrate
merge seeds from it on a fresh visit — so thumbnails and previews
outlive a browser refresh. The "[conversation compacted]" notice stops
being a truncated grey line: it renders as a labeled divider ("Earlier
messages summarized") with the daemon's full explanation on the
tooltip.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The panel pins the root message right above the replies, so the
scoping quote composeThreadPrompt prepends renders stripped there —
quotes of OTHER selections (add-to-thread) stay meaningful and intact.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…ills widths

The thread panel header gains a ⋯ menu: Show/Hide Tools for the reply
bubbles, and "Open as full chat" — the thread detaches from its root
(registry + indicator record removed), the panel closes, and the
session opens as the main chat where the sidebar now lists it. The
skills table's Name column shrinks to its content (bounded at 360px)
and Description fills the remainder, putting the ellipsis at the far
right.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The tour's closing message points at the genuine reply action instead,
and the test pins that no mock message carries canned replies.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
h-7 on both the message chips and composer pills, so thumbnail and
glyph variants align instead of the image chips running taller.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The dialog is Name, Prompt, and the trigger — timezone (machine's zone
applies silently), max runs, one-shot presets, retry, and the
write-access box are gone; edits still round-trip every stored value
through the seeded form state. Time inputs no longer snap back to the
default mid-segment-edit (transient empty values skip the rebuild), the
edit dialog title is a static "Edit Schedule", label gaps widened, and
markdown lists re-declare the body leading Tailwind's text-sm was
silently resetting.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
New skill opens on a chooser — Upload or Create manually — and manual
mode drops the upload button along with the old restart warning. Router
validation goes quiet (Save stays gated, the red lines are gone), the
category dialog loses its placeholder specimens and mono name font, the
first category created becomes the default, and the footer reads
Save/Discard. The classifier row says "Select a fast, small model for
categorization." with Select placeholders throughout. Providers: Add
moves below the list on the left, and the built-in mock no longer lists
as a provider. Config-write notices render as an info banner.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
A skill can be a whole folder (SKILL.md plus scripts/, references/,
assets/…), and the detail page now shows it: a Files card lists the
bundled files with sizes and opens bounded read-only previews. The
controller serves both — GET /skills/{name}/files walks the folder
(symlinks never followed, dot-entries skipped, 500-entry cap) and
GET /skills/{name}/file?path= reads one text file (path confined to the
skill folder, 256KB cap, binary refused) — on whichever side, enabled
or disabled, holds the skill. External mode keeps the metadata-only
note. Non-chat screens also drop their oversized bottom padding.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@jtenniswood

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Consolidated into #618 — feat/studio-atrium now fast-forwarded to include all of today's feat/studio-mobile work (identical diff against main).

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