11 Commits

Author SHA1 Message Date
Chris Arderne 06f99aeb31 fix: security release 2026-08-12 (#4735) 2026-08-20 12:34:33 +01:00
Chris Arderne 53ca44dd2d chore: cache and clean up Knip analysis (#4658) 2026-08-18 12:58:47 +01:00
Katia Bulatova e768d0a724 feat(webapp): run the dashboard agent through AWS Bedrock behind an env switch (#4609)
## What & why

The dashboard agent can now run its model calls through AWS Bedrock
instead of the direct Anthropic API, chosen by a single env switch. It's
**off by default** (`DASHBOARD_AGENT_MODEL_PROVIDER` unset ⇒
`anthropic`), so merging changes nothing at runtime — the Bedrock path
is a dormant branch until an operator sets the switch and AWS config.
The default Anthropic path is byte-for-byte unchanged.

This also carries a related tenant-isolation hardening for the agent's
delegated token (kept together deliberately — both land the agent on
Bedrock for HIPAA readiness). Refs: TRI-13251, TRI-11032.

## What's inside

**Provider seam** —
`internal-packages/dashboard-agent/src/model-provider.ts`: the registry
now holds both `anthropic` and `bedrock`; `resolveDashboardAgentModel()`
maps the canonical `"anthropic:<id>"` strings the managed prompts carry
to the active provider, and the cache-breakpoint helpers emit the active
provider's shape — Anthropic `cacheControl` vs Bedrock `cachePoint`.
Managed prompt strings stay canonical, so stored prompts don't change
meaning. Unmapped model ids throw rather than shipping a guaranteed-404
profile. All agent, watch, compaction and title callsites route through
the resolver; the `dashboardAgentModelKey` locals override (test mock
injection) is preserved.

**Cache telemetry** — `step-cache.ts`: cache token usage is read from
the active provider (Anthropic reports it on provider metadata; Bedrock
reports the write on metadata and the read via standard usage), so
`gen_ai.usage.cache_*` is populated on both. This also fixes a latent
ordering bug where step attributes could null-overwrite the prompt-cache
read count.

**Webapp callsites** — `dashboardAgentHeadStart.server.ts` and the
head-start route resolve the model and the cache breakpoint through the
same seam, so the warm-up prefix and the following turn share one
provider. The head-start firing gate is provider-aware: on Bedrock it
gates on `AWS_REGION` and lets the SDK resolve credentials (IAM role /
static keys / session token / bearer), so a role-based deploy still
warms; on Anthropic it stays `Boolean(ANTHROPIC_API_KEY)`.
`app/env.server.ts` gains the optional AWS vars and validates
`DASHBOARD_AGENT_MODEL_PROVIDER`. `ANTHROPIC_API_KEY` is untouched and
not required on a Bedrock deploy.

**Tenant-isolation hardening** —
`internal-packages/rbac/src/fallback.ts`: for a **scoped** context, the
OSS `authenticateUserActor` now applies the same membership floor as the
session path — a delegated user-actor token whose user is not a member
of the scoped org/project is denied (403). Unscoped tokens keep their
prior behavior (no tenant claim, no lookup). The user lookup falls back
replica→primary so replication lag can't spuriously 401 a just-joined
member. Members and admins are unaffected. Previously this invariant
held only through per-route discipline; this makes it structural.

## Enabling Bedrock (later, ops)

- Set `DASHBOARD_AGENT_MODEL_PROVIDER=bedrock` **identically** in both
the webapp and the agent task container — the webapp warms the cache
prefix and the task reads it, so a split would silently miss the cache.
- Set `AWS_REGION` and provide credentials the Bedrock SDK can resolve
(IAM role preferred). For v1 this runs **without** an Anthropic API key.
Note: with no Anthropic key set, rollback is "turn the agent off", not
"unset the switch" (unsetting falls back to the Anthropic provider,
which then has no key).
- Two things to confirm before rollout: the Sonnet inference-profile id
is validated against the SDK's own model-id union but still warrants a
live smoke test; and Bedrock prompt caching for Sonnet is a 5-minute
window (not Anthropic's 1h), so input-token cost rises when flipped.

## Testing

Unit tests cover both provider paths: the provider switch and
per-provider cache shapes, a structural regex asserting Bedrock ids are
real inference profiles (not an echo of the table), the split-metadata
cache telemetry, and real-Postgres RBAC tests — member allowed, scoped
non-member denied (org-only and project-only), missing user → 401, admin
non-member exempt, unscoped success. `typecheck --filter webapp` and the
dashboard-agent + rbac suites pass.
2026-08-18 13:14:01 +02:00
Chris Arderne b33197691b chore: enforce no unused deps or code in ci (#4654) 2026-08-18 11:35:51 +01:00
Katia Bulatova ee854480fe fix(webapp): dashboard agent maintenance moves into the agent project (#4599)
## What & why

The dashboard agent's upkeep — retention deletes and the investigation
sweep — ran as cron jobs on the webapp's common worker, even though it
only touches the agent's own datastore. This moves that upkeep into the
agent's Trigger project as scheduled tasks (TRI-13182).

## What's inside

**Retention** — `internal-packages/dashboard-agent/src/maintenance.ts`,
a daily task (03:00 UTC). Deletes turn evals older than 30 days,
hard-deletes chats soft-deleted more than 30 days ago, and purges
terminal watches and submission rows older than 7 days. It used to run
every 5 minutes; nothing needs a hard delete that fast, so it is daily
now, draining in bounded batches and warning if it hits the cap. It
retries (3 attempts) because the next run is a day away. It connects
with `DASHBOARD_AGENT_DATABASE_URL`, falling back to `DATABASE_URL` like
every other task in the package (the deletes are confined to the agent's
own Postgres schema), and skips when neither is set.

**Investigation sweep** — `src/investigation-sweep.ts`, every 5 minutes,
same as before: settles investigation cards stuck `in_progress`
(30-minute window, attempt cap, force-abandon note). It keeps the fast
cadence because it fixes live state the UI is showing.

**What stays in the webapp.** The watch finalize/deliver sweep and batch
rearm: they cover a dead agent-side tick chain — a backstop can't live
inside the thing it backstops — and they need the main database and the
alerts worker. The org-deletion chat purge also stays: deletion must not
depend on the agent project being deployed. The removed cron job keeps a
cron-less tombstone entry so already-queued items drain cleanly; remove
it in a follow-up.

**Test plumbing** — the drizzle migration replayer that webapp tests
hand-rolled is now exported once from
`@internal/dashboard-agent-db/testing`; the moved tests live in the
agent package as `src/*.test.ts` against real Postgres.

## Testing

Agent package: retention passes (backlog drain, batch cap, no-op guard,
chat-delete cascade) and the sweep, on testcontainers Postgres. Webapp:
the watch/chat suites, plus a test that a settlement card stops the
dashboard spinner. Full typecheck on both.
2026-08-13 13:13:02 +02:00
Katia Bulatova 480bede0ad feat(webapp,sdk): dashboard agent plan enforcement, component gallery — and fixes (#4516)
Plan enforcement for the dashboard agent — message quota and watch
limits — plus the component gallery, fixes and test hardening from the
same stack (#4548, #4549, #4550, #4552, #4556 merged here).

## Plan enforcement
([TRI-12863](https://linear.app/triggerdotdev/issue/TRI-12863))

**Agent message quota.** The Free-plan allowance becomes a real
server-side limit with a durable counter. New `agent_message_usage`
table keyed `(organization_id, period)` — deliberately not joined to
chats, so deleting a chat can't free quota within the period. Both send
paths count one user message (wakes never count) and refuse at the cap
with `403 message_quota_reached`, which the client renders as an upgrade
panel, never a silent drop. The refusal code is a single shared constant
on both sides.

**Watch limits.** A watch whose window exceeds the plan's
`agentWatchMaxHours`, or that would push the org past its
`agentWatchers` count, is refused with `watch_limit_reached` (409 on the
API, an upgrade hint on the card). Plan limits only tighten the existing
code ceilings (`min(plan, 24h)`, per-chat cap of 3 still applies). A
plan limit of zero means zero, not unlimited. Questions answerable
instantly are answered before any plan refusal — a one-shot consumes no
slot and never sees an upgrade nag.

**Fails open by design.** Cloud ships the actual per-plan numbers
separately (TRI-12863 P0). Until then absent limits resolve to the
unlimited sentinel and the upgrade UI is gated on billing presence —
self-hosted sees no cap, no upsell, with tests proving the fallback.
Both quotas are nudges, not security boundaries: a failing limit read
never blocks a send.

## Component gallery

An admin-only gallery of every agent card state: five
`storybook.agent-*` pages (chat UI, view blocks, report, investigation,
watch) with their shared shell and manifest, demo fixtures, two
demo-only cards, toast examples, and the screenshot script. No LLM and
no data — every state renders from fixtures under
`dashboard-agent/demo/`, never reachable from a production path.
Designers and reviewers can look at every state, including the report
states, without seeding anything.

## And fixes

**SDK: watch-mode chat subscriptions survive quiet windows** (TRI-13065,
TRI-13070) — watch mode keeps reconnecting across empty long-poll
windows and only stops on abort or a settled session; a passive
subscriber can no longer stop a turn it doesn't own (`stopOnAbort` is
explicit, default off). Review findings fixed alongside: a superseded
stream's async teardown no longer removes the live successor's abort
controller or multi-tab claim, and stopping a generation hands the chat
back to the user's other tabs.

**Query boundary pinned end-to-end**
([TRI-11165](https://linear.app/triggerdotdev/issue/TRI-11165)) — a
route-level test drives `api.v1.query` with a real signed environment
JWT (writes refused before ClickHouse, a read passes); `readonly=1` made
non-overridable; a per-turn cap stops the model burning a turn rewriting
a query it can't fix (deterministic SQL errors only — busy/transport
rejections don't count).

**chat.agent durability regression suite**
([TRI-11166](https://linear.app/triggerdotdev/issue/TRI-11166)) —
testcontainers-backed coverage of the two audit criticals (cross-tenant
isolation, no duplicate mid-stream turn, both control-broken) plus
crash-resume, cursor-based refresh, clean rollback of a mid-write turn
failure (torn by a real constraint violation), and OOM-restart replay.

**Investigation sweep backoff** — stale investigations get an attempt
counter and backoff so a poison row can't pin the sweep queue head
(migration `0005`: `sweep_attempts`, `last_sweep_attempt_at`).

## Screenshots

<img width="1440" height="791" alt="Screenshot 2026-08-06 at 00 36 19"
src="https://github.com/user-attachments/assets/6a68cd42-8580-469d-afe7-e28d1eef18e1"
/>

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-08-12 13:59:35 +02:00
Katia Bulatova 0b750d00dd feat(webapp): dashboard agent — Watch (#4525)
Watch is the agent noticing something later: you ask it to tell you when
a condition holds, and it answers when it does — or when it can't any
more.

A watch is a **durable one-shot promise**. The condition is checked on a
schedule by deterministic code (no LLM in the checks), the answer lands
in the chat once, and then the watch is over. Ten kinds: three on a run,
five on a queue, error recurrence, health recovery.

## Stack

Stacked on **#4529** (UI), which is stacked on **#4418** (chat, reports,
investigate). Merge those first. **#4516** (storybook gallery) sits on
top of this branch.

## How to review


[**GUIDEBOOK.md**](https://github.com/triggerdotdev/trigger.dev/blob/feat/dashboard-agent-flows-watch/internal-packages/dashboard-agent/GUIDEBOOK.md)
on this branch is the behaviour reference — it states the conditions
rather than the code, so you can predict what happens without running
anything. "The ten watch kinds, and what makes each fire" and "Creating
a watch" describe exactly this PR, and the tables there are the spec the
code is written against.

## What's inside

- **Ten watch kinds**, one deterministic check each
(`dashboardAgentWatch*Checks.ts`), with the spec union in
`dashboard-agent-contracts/src/watch.ts`.
- **Scheduling** — each watch schedules its own next check; due watches
of one `(environment, cadence)` group can be checked together in one
batch pass, with a sweep as the backstop for expiry, redelivery and
retention.
- **Delivery** — the in-chat wake and card, an optional email alert (new
`DASHBOARD_AGENT_WATCH` alert channel, so it shows on the project's
Alerts page with one-click unsubscribe), and an optional investigation
when the outcome needs attention.
- **Submission ledger** — `watch_submissions`, keyed `(chat_id,
client_request_id)`, so a retried card submission replays the recorded
outcome instead of creating a second watch.
- **Watch token** — a delayed-execution credential accepted only by the
watch endpoints, re-checked against the user's live access on every
tick.
- **Unread work** — the panel polls for wakes that landed while it was
closed, so a chat can go unread and light the launcher dot.

## Key decisions

**A check result is a 4-way, and only two of them are verdicts.**
`satisfied` / `terminal_unsatisfied` are answers; `pending` and
`unavailable` are not. Any exception inside any check is caught in one
place and becomes `unavailable` with an unverified observation — a check
that failed is never evidence.

**A completed window is an answer, and whether it is good or bad news is
declared per kind, never inferred.** There is a table for that in the
guidebook: `run_failed` completing its window is *good* news ("hasn't
failed"), `backlog_drain` completing it is not. One rule overrides the
table: a window that completed on an unverified observation is neutral
and says only that the watch ended without a confirmed answer. **An
unreadable source is never a negative answer** — and, because
investigations only open on `attention`, it never starts one either.

**Identity is `(chat, project, environment)` plus the condition,**
enforced by a partial unique index over active rows
(`watches_chat_active_identity_key`), not by the read-then-insert check.
Cadence, window, note and `ticks` are deliberately not part of it. Two
different chats may watch the same thing — a watch is a promise to a
chat.

**The server resolves the target's name, whatever the model calls it.**
The model can't tell a task queue (`task/<id>`) from a custom queue, so
both spellings are tried and the stored one wins — and the rewrite
happens **before** identity and before the row is written, so the
identity, the checks, the link and the wording all see one spelling.

**Freshness fences.** Depth falls back from the live counter to the
newest 60 s ClickHouse bucket, which only counts as current within 60 s
of now. A non-current reading at or below the *quiet line* is refused as
`unavailable` rather than believed, so a stale empty bucket is never
read as "drained". The stall streak is the one piece of carried state:
it lives in the previous check's facts and *freezes* on an unreadable
reading rather than breaking.

**Chain reliability.** There is no shared cron — each watch (or batch
group) schedules its own next tick, so the failure mode to review is the
chain dying. A failed batch check is caught, the next tick is scheduled
anyway and the run resolves rather than failing, so the chain survives a
check that couldn't run; the sweep re-arms groups and finalizes anything
still active past its deadline, even when delivery isn't configured.
Wake redelivery is id-deduped rather than conditional, because the sweep
can't know whether the user was already told. Access is re-authorized on
**every** check against the primary — replica lag would extend access
the user has already lost.

**Wording lives in one place.** `watch-wording.ts` is read by the card,
banner, toast, email and the agent's own narration, and the numbers come
from the frozen observation rather than a fresh read, so a retry
produces the same sentence. Replay reproduces the **recorded** decision
instead of deciding again — the transcript is append-once, so a second
decision would contradict it forever.

**Cancellation is the ending without an answer** — no resolution, no
wake. One exception, decided during testing: a watch the *user*
cancelled leaves a single neutral transcript line ("Stopped watching
…"), keyed off the watch id so a retry can't repeat it. The other four
reasons stay silent.

**Email is opt-in and only a fired watch emails.** An expiry is narrated
in the chat and nowhere else. Both gates (agent access, a configured
email transport) are checked at subscribe time *and* again at delivery,
and the subscription outcome is frozen on the ledger row so a retry
replays it. Neither gate is a plan check.

**One watch offer per turn.** The prompt and the renderer guard this
independently — if the turn already proposed a watch card, the action
button is dropped, because the card is the better affordance. Two eval
cases pin the prompt side: exactly one offer with the line last and the
button after it, and zero offers when the rendered card already carries
one — deterministic assertions, over a real-model run.

## Testing

Unit tests (vitest, testcontainers, no mocks) under
`apps/webapp/test/dashboardAgentWatch*.test.ts` and
`internal-packages/dashboard-agent/src/watch-*.test.ts` cover the
invariants above: the 4-way check results and the freshness fences,
identity/dedup and the submission ledger, queue-name resolution, the
batch chain surviving a failed check, sweep boundaries and alert-once,
tenancy and the watch token's scope, and the wording snapshot. The
load-bearing ones were verified by control-breaking the guard first and
checking the test goes red.

Live-tested end to end against a local stack, following the guidebook:
all ten watch kinds firing and expiring, cancellation, the email pair (a
fired watch mails, an expired one does not), and watch recovery from a
health report.
2026-08-12 09:51:40 +02:00
Katia Bulatova 9a3bee0288 feat(webapp): dashboard agent — UI (#4529)
Stacked on #4418. Merge that first.

The UI slice of the dashboard agent: the side panel, the chat transport
wiring, message and card rendering, suggested prompts, and chat history.
#4418 works without this — the system is simply invisible. The diff is
mostly components, so the notes below cover only the three decisions you
can't read off the markup. Behavior and a hands-on walkthrough live in
GUIDEBOOK.md, which lands with #4525.

## Decisions worth knowing

- **Action rows always render at the end of a turn.** The model's
emission order isn't trusted for layout, so action blocks are split out
of the stream and appended last. Display only — `answered` stays keyed
on the emission index.
- **The last-chat memory is org-true.** It's keyed by the chat's own
organization, and a foreign or deleted chat comes back as a 404 the
client treats as gone, rather than an empty chat it keeps around.
- **A dead stream self-heals from the settled transcript.** Terminal
records are written to the chat row after the client's stream closes, so
the panel re-reads it. The poll gate is any unfinished turn — a dangling
tool part, not just an open investigation.

## Notes

- Gated by `canAccessDashboardAgent`; no behavior change with the flag
off.
- Page marks: `handle.agentPageContext` on 47 routes, ~20 lines each.
- Entry points: Ask Trigger button, ⌘J, Help & Feedback. The old ⌘I and
`?aiHelp=` links keep working.

## Screenshots

<img width="1440" height="788" alt="Screenshot 2026-08-07 at 15 14 29"
src="https://github.com/user-attachments/assets/f4e89e8d-13ed-4be3-a88d-d5cca3ece0fa"
/>
2026-08-12 08:38:59 +02:00
Katia Bulatova 4569657923 feat(webapp): dashboard agent — chat, reports, investigate (#4418)
## What & why

This is the system behind the Dashboard Agent — an assistant that
answers questions about a project's runs, errors, queues, deploys and
health, and can investigate failures end to end.

The agent runs as a chat.agent task in its own Trigger project. It has
no access to the main database or ClickHouse; all platform data is read
through the public API using a delegated, read-only user token.

Everything here is behind `canAccessDashboardAgent` and inert with the
flag off. The UI that mounts the panel lands in #4529.

## Stack

`#4418` (this, base) ← `#4529` UI ← `#4525` Watch ← `#4516` storybook
gallery. The scenario/contract reference for the whole stack is
`internal-packages/dashboard-agent/GUIDEBOOK.md` (it lands on the Watch
branch): it states, per feature, what makes each thing happen and where
that is decided.

## What's inside

**Agent runtime and tools** — `internal-packages/dashboard-agent`:
prompt, tool set (API reads, TRQL query, docs, navigation,
evidence/investigations, repo source), conversation compaction, a
prompt-prefix token budget pinned by snapshot test, and sampled
LLM-judged turn evals. The package cannot import webapp server code,
which is what makes the "no DB access" claim structural rather than a
convention.

**Contracts** — `internal-packages/dashboard-agent-contracts`:
`trigger://` URIs, intents, and the block envelope every rendered card
travels in.

**Conversation store** — `internal-packages/dashboard-agent-db`: drizzle
over postgres-js in its own `trigger_dashboard_agent` Postgres schema,
plus one additive migration.

**Auth boundary** — the user-actor token gains an optional environment
claim; one guard (`userActorEnvironment.server.ts`) enforces it so
routes don't each re-derive the rule. Token minting, cap ceiling, and
the RBAC fallback path for self-hosted.

**Transport** — webapp resource routes that mint the token and proxy
each turn, and SDK-side mid-turn reconnect.

**Public API the agent reads through** — orgs, projects, environments,
runs, queue metrics, workers, a run's commit metadata, repo snapshot,
reports, and `POST /api/v1/query`.

**Reports** — the health report's layout is declared once and shared by
the card, the markdown surface and the JSON/MCP surface, so the same
report reads the same in the dashboard, the terminal and an editor.

**Block renderers** — the report and investigation cards the flows above
already emit (`app/components/dashboard-agent/`). The panel that hosts
them, and the rest of the chat UI, is #4529.

**Query safety and CSP** — see below.

## Key decisions

- **The agent is a separate Trigger project, not webapp code.** It reads
platform data over the public API with a delegated user-actor token
whose `cap` ceilings it to read scopes. No Prisma, no ClickHouse, no
webapp imports.
- **The PAT-only auth helper now refuses user-actor tokens.** This is an
intentional behavioral change: its callers consume only a bare userId
and do not enforce delegated-token capabilities. Actor-aware routes
continue through the scoped route builders instead.
- **RBAC fallback builds a delegated token's ability from its own cap**,
never the blanket ability a PAT gets (read-only when the token declares
none). Without this, the agent's read-only cap would buy a write JWT on
self-hosted.
- **Org creation checks RBAC only for user-actor tokens, and only after
the env gate**, so an install with `ORG_CREATION_API_ENABLED` off
returns 404 rather than 403, and an ordinary PAT never consults an
ability the route has no org to scope. Both orderings are pinned by
test.
- **The query path is read-only in depth.** TRQL rejects write
statements at the grammar level (they don't parse, rather than being
filtered), ClickHouse runs with `readonly=1`, and the org/project/env
filters are injected server-side from the credential — the request body
cannot widen scope. An unparseable query denies instead of falling
through to the permissive resource.
- **Document-wide img-src CSP.** Remote images are an
outbound-request/exfiltration surface, so the policy permits only
own-origin/data/blob, the required SSO avatar hosts, and the favicon
endpoint. Operators can add exact origins through CSP_IMG_SRC_ALLOWLIST;
wildcard hosts and bare schemes are intentionally not allowed.
- **The chat transport reconnects on a mid-turn EOF**
(`@trigger.dev/sdk`). A body that ends without a turn-complete is
terminal only when the server says `X-Session-Settled: true`; otherwise
the transport resubscribes from `lastEventId` with bounded backoff, and
any record re-earns the budget. Previously a closed long-poll window or
a proxy restart left the reply stuck as if still generating.
- **Conversations live in their own datastore**, schema-scoped and
foreign-key-free (it references `organizationId`/`userId` by id, because
in cloud it is a different database). It is a display read-model for the
History tab and transport resume; `chat.agent`'s object-store snapshot
remains the model's source of truth.
- **Deterministic first.** Reports and health checks contain no LLM —
they are computed from the same data the dashboard shows, and the model
only narrates and links them. That is what makes a number in an answer
auditable.

## Testing

- 63 new test files, run with `pnpm run test --filter webapp` and
per-package vitest. Heaviest coverage on the auth boundary
(`userActorPatOnlyBoundary`, `userActorTokenClaimsAndScopes`,
`contextlessPatRoutes`, `rbacFallbackBranch`), TRQL read-only, the
report layout, and the SDK reconnect.
- The agent package has a separate eval lane (`pnpm run test:evals`,
`vitest.eval.config.ts`) that hits the real model, so it never runs in
`pnpm test`.
- Live-tested against a local stack scenario by scenario; the GUIDEBOOK
lists the condition each behaviour is expected under, which is what
those runs were checked against.

## Changelog

`.server-changes/dashboard-agent.md`, plus changesets for
`@trigger.dev/core` (report schemas), `@trigger.dev/sdk` (chat
reconnect) and the CLI's `mint-token` help text.
2026-08-11 18:56:14 +02:00
Chris Arderne b54201f986 chore: switch to oxfmt, oxlint - add ci checks (#3977) 2026-06-26 12:19:29 +01:00
Eric Allam c06005b353 feat(webapp,sdk): in-dashboard AI agent (#4018)
## Summary

Adds an in-dashboard AI agent: a chat panel, reachable from any
environment
page, that answers questions about your runs, errors, tasks, and
analytics,
diagnoses why a run failed, charts your data, reads your connected
repo's
source, and answers product and how-to questions. It is gated behind the
`hasDashboardAgentAccess` feature flag (global or per-org, default off),
so
this PR ships disabled: the launcher is hidden unless the flag is
enabled.

## Design

The agent runs as a standalone `chat.agent` Trigger task in its own
internal
package, with no access to the webapp database, Prisma, or ClickHouse.
It reads
the user's data over the public API, acting as the user via a
short-lived
delegated user-actor token minted server-side each turn (never in the
browser),
building on
[#3997](https://github.com/triggerdotdev/trigger.dev/pull/3997). The
error and analytics tools use
[#4005](https://github.com/triggerdotdev/trigger.dev/pull/4005)
and the TRQL query API.

The first turn of a new chat streams from a warm webapp route (Head
Start) while
the durable agent boots in parallel. Structured answers (a run-failure
diagnosis
card, a live chart) render through a small typed view catalog rather
than
arbitrary markup. A knowledge lane forwards product and how-to questions
to the
support assistant.

Conversation history lives in a separate Drizzle-backed store on its own
Postgres schema, kept as a display read-model so it can never corrupt
the
agent's model context.

The SDK changes add an `apiClient` option to
`chat.createStartSessionAction` and
`chat.headStart`, and keep the Head Start tool-approval tail intact
across a
custom `prepareMessages` hook so prompt caching and Head Start compose.
2026-06-24 19:04:28 +01:00