Fixes AIGOV-141
The `coder support bundle` command previously required admin permissions
(`Read DeploymentConfig`) and would abort entirely for non-admin
`member` users with:
```
failed authorization check: cannot Read DeploymentValues
```
This change makes the command **degrade gracefully** instead of failing
outright.
<details>
<summary>
Changes
</summary>
### `support/support.go`
- **`Run()`**: The authorization check for `Read DeploymentValues` is
now a soft warning instead of a hard gate. Unauthenticated users (401)
still fail, but authenticated users with insufficient permissions
proceed with reduced data.
- **`DeploymentInfo()`**: `DeploymentConfig` and `DebugHealth` fetches
now handle 403/401 responses gracefully, matching the existing pattern
used by `DeploymentStats`, `Entitlements`, and `HealthSettings`.
- **`NetworkInfo()`**: Coordinator debug and tailnet debug fetches now
check response status codes for 403/401 before reading the body.
### `cli/support.go`
- **`summarizeBundle()`**: No longer returns early when `Config` or
`HealthReport` is nil. Instead prints warnings and continues summarizing
available data (e.g., netcheck).
### Tests
- `MissingPrivilege` → `MemberNoWorkspace`: Asserts member users can
generate a bundle successfully with degraded admin-only data.
- `NoPrivilege` → `MemberCanGenerateBundle`: Asserts the CLI produces a
valid zip bundle for member users.
- All existing tests continue to pass (`NoAuth`, `OK`, `OK_NoWorkspace`,
`DontPanic`, etc.).
## Behavior matrix
| User type | Before | After |
|---|---|---|
| **Admin** | Full bundle | Full bundle (no change) |
| **Member** | Hard error | Bundle with degraded admin-only data |
| **Unauthenticated** | Hard error | Hard error (no change) |
Related to PRODUCT-182
## Summary
The `AgentsPageView: Opens Analytics For Admins` story was flaky because
the analytics header renders a rolling 30-day date range in the
top-right corner. Since that range was based on the current date, the
story output changed every day.
This change makes the story deterministic by:
- adding an optional `analyticsNow` prop to `AgentsPageView`
- passing that value through to `AnalyticsPageContent` when the
analytics panel is shown
- setting a fixed local-noon timestamp in the story so the rendered
range label stays stable across timezones
## Summary
- include the current agent chat ID in VS Code and Cursor deep links
opened from the agent detail page
- extend `getVSCodeHref` so `chatId` is added only when provided
- add focused tests for deep-link generation with and without `chatId`
## Testing
- `pnpm -C site run format -- src/modules/apps/apps.ts
src/modules/apps/apps.test.ts src/pages/AgentsPage/AgentDetail.tsx`
- `pnpm -C site run check -- src/modules/apps/apps.ts
src/modules/apps/apps.test.ts src/pages/AgentsPage/AgentDetail.tsx`
- `pnpm -C site exec vitest run src/modules/apps/apps.test.ts`
- `pnpm -C site run lint:types`
---
_Generated with [`mux`](https://github.com/coder/mux) • Model:
`openai:gpt-5.4` • Thinking: `high`_
When a PR is detected for a chat, display a compact PR badge in the
AgentDetail TopBar. On mobile it is always visible; on desktop it is
hidden when the sidebar panel is open (which already surfaces PR info)
and shown when the panel is closed.
The badge shows a state-colored icon (open, draft, merged, closed) and
the PR title or number, linking to the PR URL. Only URLs confirmed as
real PRs (via explicit `pull_request_state` or a `/pull/<number>`
pathname) trigger the badge.
## Changes
- **`TopBar.tsx`** — Added `diffStatusData` prop, `PrStateIcon` helper,
and a PR link badge between the title and actions area. Hidden on
desktop when the sidebar panel is open.
- **`AgentDetailView.tsx`** — Pass `diffStatusData` through to
`AgentDetailTopBar`.
- **`TopBar.stories.tsx`** — Added stories for open, draft, merged, and
closed PR states.
Our dogfood image already included chrome. Since we run dogfood
workspaces in Docker, chrome requires some compatibility flags to run
properly. If you launch chrome without them, some webpages crash and
fail to load.
The newest release of https://github.com/coder/portabledesktop added an
icon dock. This PR edits the chrome `.desktop` files so when you open
chrome from the dock it runs with the correct flags.
https://github.com/user-attachments/assets/7bf880e1-22a4-4faa-8f7f-394863c6b127
RenderBlock's file-reference variant diverged from the API (camelCase
vs snake_case), and both file variants were defined inline duplicating
the generated ChatFilePart and ChatFileReferencePart types. The
thinking and file-reference variants carried dead fields (title, text)
that were never populated by the backend.
Replace inline definitions with references to generated types, remove
dead fields, and simplify ReasoningDisclosure (disclosure button path
was dead without title).
Refs #23168
Addresses five documentation gaps identified from an internal agents
briefing Q&A, specifically around what permissions an agent inherits
from the user:
1. **No privilege escalation** — Added explicit statement that the agent
has the exact same permissions as the user. No escalation, no shared
service account.
2. **Cross-user workspace isolation** — Added statement that agents
cannot access workspaces belonging to other users.
3. **Default-state warning** — Added WARNING callouts that agent
workspaces inherit the user's full network access unless templates
explicitly restrict it.
4. **Tool boundary statement** — Added explicit statement that the agent
cannot act outside its defined tool set and has no direct access to the
Coder API.
5. **Template visibility scoped to user RBAC** — Clarified that template
selection respects the user's role and permissions.
Changes across 3 files:
- `docs/ai-coder/agents/index.md`
- `docs/ai-coder/agents/architecture.md`
- `docs/ai-coder/agents/platform-controls/template-optimization.md`
---
PR generated with Coder Agents
## Problem
When a user cancels a streaming chat response mid-stream, the partial
content disappears entirely — both from the UI and the database. The
streamed text vanishes as if the response never happened.
## Root Causes
Three issues combine to prevent partial message persistence on
interrupt:
### 1. StreamPartTypeError only matched `context.Canceled`
(`chatloop.go`)
The interrupt detection in `processStepStream` checked:
```go
errors.Is(part.Error, context.Canceled) && errors.Is(context.Cause(ctx), ErrInterrupted)
```
But some providers propagate `ErrInterrupted` directly as the stream
error rather than wrapping it in `context.Canceled`. This caused the
condition to fail, so `flushActiveState` was never called and partial
text accumulated in `activeTextContent` was lost.
### 2. No post-loop interrupt check (`chatloop.go`)
If the stream iterator stops yielding parts without producing a
`StreamPartTypeError` (e.g., a provider that silently closes the
response body on cancel), there was no check after the `for part :=
range stream` loop to detect the interrupt and flush active state.
### 3. Worker ownership check blocked interrupted persists (`chatd.go`)
`InterruptChat` → `setChatWaiting` clears `worker_id` in the DB
**before** the chatloop detects the interrupt. When
`persistInterruptedStep` (using `context.WithoutCancel`) tried to write
the partial message, the ownership check:
```go
if !lockedChat.WorkerID.Valid || lockedChat.WorkerID.UUID != p.workerID {
return chatloop.ErrInterrupted // always blocks!
}
```
unconditionally rejected the write. The error was silently logged as a
warning.
## Fix
- **Broaden the `StreamPartTypeError` interrupt detection** to match
both `context.Canceled` and `ErrInterrupted` as the stream error.
- **Add a post-loop interrupt check** in `processStepStream` that
flushes active state when the context was canceled with
`ErrInterrupted`.
- **Allow `persistStep` to write when the chat is in `waiting` status**
(interrupt) even if `worker_id` was cleared. The `pending` status (from
`EditMessage`, where history is truncated) still correctly blocks stale
writes.
## Testing
Added `TestInterruptChatPersistsPartialResponse` — an end-to-end
integration test that:
1. Streams partial text chunks from a mock LLM
2. Waits for the chatloop to publish `message_part` events (confirming
chunks were processed)
3. Interrupts the chat mid-stream
4. Verifies the partial assistant message is persisted in the database
with the expected text content
## Summary
- add shared MCP annotation metadata to toolsdk tools
- emit MCP tool annotations from both coderd and CLI MCP servers
- cover annotation serialization in toolsdk, coderd MCP e2e, and CLI MCP
tests
## Why
- Coder already exposed MCP tools, but it did not populate MCP tool
annotation hints (`readOnlyHint`, `destructiveHint`, `idempotentHint`,
`openWorldHint`).
- Hosts such as Claude Desktop use those hints to classify and group
tools, so without them Coder tools can get lumped together.
- This change adds a shared annotation source in `toolsdk` and has both
MCP servers emit those hints through `mcp.Tool.Annotations`, avoiding
drift between local and remote MCP implementations.
## Testing
- Tested locally on Cladue Desktop and the tools are categorized
correctly.
<table>
<tr>
<td> Before
<td> After
<tr>
<td> <img width="613" height="183" alt="image"
src="https://github.com/user-attachments/assets/29d2e3fb-53bc-4ea7-bdb3-f10df4ef996b"
/>
<td> <img width="600" height="457" alt="image"
src="https://github.com/user-attachments/assets/cc384036-c9a7-4db9-9400-43ad51920ff5"
/>
</table>
Note: Done using Coder Agents, reviewed and tested by human locally
The flat ChatMessagePart interface had 20+ optional fields, preventing
TypeScript from narrowing types on switch(part.type). Each consumer
needed runtime validation, type assertions, or defensive ?. chains.
Add `variants` struct tags to ChatMessagePart fields declaring which
union variants include each field. A codegen mutation in apitypings
reads these tags via reflect and generates per-variant sub-interfaces
(ChatTextPart, ChatReasoningPart, etc.) plus a union type alias.
A test validates every field has a variants tag or is explicitly
excluded, and every part type is covered.
Remove dead frontend code: normalizeBlockType, alias case branches
("thinking", "toolcall", "toolresult"), legacy field fallbacks
(line_number, typedBlock.name/id/input/output), and result_delta
handling. Add test coverage for args_delta streaming, provider_executed
skip logic, and source part parsing.
Transient 'No such file or directory' errors from disappearing
overlay2 layers during container operations pollute the displayed
metadata value. Redirect stderr to /dev/null.
Adds a new `site_config` entry that controls whether the virtual desktop
feature for Coder Agents is enabled. It can be set via a new
`/api/experimental/chats/config/desktop-enabled` endpoint, which will be
used by the frontend.
## Summary
Two targeted performance improvements to the chatd server, identified
through benchmarking.
### 1. RWMutex for instruction cache
The instruction cache is read on every chat turn to fetch the home
instruction file for a workspace agent. Writes only occur on cache
misses (once per agent per 5-minute TTL window), making the access
pattern ~90%+ reads.
Switching from `sync.Mutex` to `sync.RWMutex` and using
`RLock`/`RUnlock` on the read path allows concurrent readers instead of
serializing them.
**Benchmark (200 concurrent chats):**
| | ns/op |
|---|---|
| Mutex | 108 |
| RWMutex | 32 |
| **Speedup** | **3.4x** |
### 2. Hoist JSON marshaling out of persistStep transaction
`MarshalParts`, `PartFromContent`, `CalculateTotalCostMicros`, and the
`usageForCost` struct population are pure CPU work that ran inside the
`FOR UPDATE` transaction in `persistStep`. They have zero dependency on
the database transaction.
Moving all marshal and cost-calculation calls above `p.db.InTx()` means
the row lock is held only for `GetChatByIDForUpdate` +
`InsertChatMessage` calls.
**Benchmark (16 goroutines contending on same lock):**
| Tool calls | Inside lock | Outside lock | Speedup |
|---|---|---|---|
| 1 | 13,977 ns/op | 1,055 ns/op | 13x |
| 5 | 38,203 ns/op | 3,769 ns/op | 10x |
| 10 | 67,353 ns/op | 7,284 ns/op | 9x |
| 20 | 145,864 ns/op | 14,045 ns/op | 10x |
No behavioral changes in either commit.
Renames the page title from "Template Routing" to "Template
Optimization" in both the markdown H1 header and the docs manifest
entry.
---
PR generated with Coder Agents
Add a new docs page under /docs/ai-coder/agents/ covering best practices
for creating templates that are discoverable and useful to Coder Agents.
Covers template descriptions, dedicated agent templates, network
boundaries, credential scoping, parameter design, pre-installed tooling,
and prebuilt workspaces for reducing provisioning latency.
<!--
If you have used AI to produce some or all of this PR, please ensure you
have read our [AI Contribution
guidelines](https://coder.com/docs/about/contributing/AI_CONTRIBUTING)
before submitting.
-->
## Summary
Remove the `hidden` tag from the `PromptCacheKey` field on
`ChatModelOpenAIProviderOptions` so the auto-generated JSON schema
no longer marks it as hidden. This allows the admin model
configuration UI to render a "Prompt Cache Key" text input for
OpenAI models alongside other visible options like Reasoning Effort,
Service Tier, and Web Search.
## Changes
- **`codersdk/chats.go`**: Remove `hidden:"true"` from `PromptCacheKey`
struct tag.
- **`site/src/api/chatModelOptionsGenerated.json`**: Regenerated via
`make gen` — `hidden: true` removed from the `prompt_cache_key` entry.
- **`modelConfigFormLogic.test.ts`**: Extend existing "all fields set"
tests to cover extract and build roundtrip for `promptCacheKey`.
## How it works
The `hidden` Go struct tag propagates through the code generation
pipeline:
1. Go struct tag → `scripts/modeloptionsgen` →
`chatModelOptionsGenerated.json`
2. The frontend `getVisibleProviderFields()` filters out fields with
`hidden: true`
3. Removing the tag makes the field visible in the schema-driven form
renderer
No new UI components are needed — the existing `ModelConfigFields`
component
automatically renders the field as a text input based on the schema
(`type: "string"`, `input_type: "input"`).
The field appears as **"Prompt Cache Key"** with description
"Key for enabling cross-request prompt caching" in the OpenAI provider
section of the admin model configuration form.
Fixes#18573
## Changes
When a `coder_app` resource sets `open_in = "tab"`, clicking the app
link now opens in a new browser tab instead of navigating in the same
tab.
`target="_blank"` and `rel="noreferrer"` are set inline on the
`<a>` elements in `AppLink.tsx`, gated on `app.open_in === "tab"`. This
follows the codebase convention of co-locating `target` and `rel` at the
render site.
`noreferrer` suppresses the Referer header to avoid leaking workspace IDs
to destination servers and implies `noopener`.
`noopener` prevents tabnabbing — without it, the opened page can
redirect the Coder dashboard tab via `window.opener`. This is especially
relevant for same-origin path-based apps, which would otherwise have
full DOM access to the dashboard.
> **Future enhancement**: template admins could opt into sending the
referrer via a `coder_app` setting, enabling feedback pages built around
workspace context.
## Tests
A vitest case is added in `AppLink.test.tsx` (rather than a Storybook
story, since the assertions are purely behavioral with no visual
component):
- **`sets target=_blank and rel=noopener noreferrer when open_in is
tab`** — renders the app link with `open_in: "tab"` and asserts
`target="_blank"` and `rel="noreferrer"` are present on the
anchor.
## Slim-window behavior
The `slim-window` test case and the `openAppInNewWindow()` comment in
`apps.ts` have been split out into a follow-up PR for separate review,
since the `window.open()` / `noopener` tradeoffs there deserve dedicated
discussion.
---------
Co-authored-by: Kayla はな <kayla@tree.camp>
Introduce a three-way workspace sharing setting (none, everyone,
service_accounts) replacing the boolean workspace_sharing_disabled.
In service_accounts mode, only service account-owned workspaces can be
shared while regular members' share permissions are removed. Adds a
new organization-service-account system role with per-org permissions
reconciled alongside the existing organization-member system role.
Related to:
https://linear.app/codercom/issue/PLAT-28/feat-service-accounts-sharing-mode-and-rbac-role
---------
Co-authored-by: Steven Masley <Emyrk@users.noreply.github.com>
Co-authored-by: Kayla はな <mckayla@hey.com>
## Summary
Fixes four interrelated issues that caused scroll position jumps and
phantom scroll growth when paginating older chat messages.
## Changes
### 1. Removed client-side message windowing (`useMessageWindow`)
There were two competing sentinel systems: server-side pagination and
client-side windowing. The client windowing sentinel was nested deep
inside the timeline with no explicit IntersectionObserver `root`,
causing scroll position jumps when messages were prepended. Blink
(coder/blink) has no client-side windowing. Removed it entirely; server
pagination + `contentVisibility` handled performance.
### 2. Removed `contentVisibility: "auto"` from message sections
Each section had `contentVisibility: "auto"` with `containIntrinsicSize:
"1px 600px"`, causing the scroll region to grow/shrink as the browser
swapped 600px placeholders for actual heights while scrolling. This
created phantom scroll growth with no fetch involved.
### 3. Gated WebSocket on initial REST data
The WebSocket `Subscribe` snapshot calls `GetChatMessagesByChatID` (no
LIMIT) which returns every message when `afterMessageID` is 0. The
WebSocket effect opened before the REST page resolved, so
`lastMessageIdRef` was undefined, causing the server to replay the
entire history and defeating pagination. Added `initialDataLoaded` guard
so the socket waits for the first REST page.
### 4. Manual scroll position restoration
Replaced unreliable CSS scroll anchoring in `flex-col-reverse` with a
`ScrollAnchoredContainer` that snapshots `scrollHeight` before fetch and
restores `scrollTop` via `useLayoutEffect` after render. Disabled
browser scroll anchoring (`overflow-anchor: none`) to prevent conflicts.
File references in user messages now render as inline chips (matching
the chat input style) instead of in a separate bordered section at the
bottom of the message bubble.
This reimplements #23131 which was accidentally reverted during the
merge of #23072 (the spend-limit UI PR resolved a merge conflict by
dropping the inline chip logic).
## Changes
- **FileReferenceNode.tsx**: Export `FileReferenceChip` so it can be
imported for read-only use (no remove button when `onRemove` is
omitted).
- **ConversationTimeline.tsx**: Iterate through `parsed.blocks` in
document order, rendering `response` blocks as text and `file-reference`
blocks as inline `FileReferenceChip` components. Removes the old
separated file-reference section with `border-t` divider.
- **ConversationTimeline.stories.tsx**: Added
`UserMessageWithInlineFileRef` and
`UserMessageWithMultipleInlineFileRefs` stories.
## Problem
The chat listing endpoint (`GetChatsByOwnerID`) was using
`fetchWithPostFilter`, which fetches N rows from the database and then
filters them in Go memory using RBAC checks. This causes a pagination
bug: if the user requests `limit=25` but some rows fail the auth check,
fewer than 25 rows are returned even though more authorized rows exist
in the database. The client may incorrectly assume it has reached the
end of the list.
## Solution
Switch to the same pattern used by `GetWorkspaces`, `GetTemplates`, and
`GetUsers`: `prepareSQLFilter` + `GetAuthorized*` variant. The RBAC
filter is compiled to a SQL WHERE clause and injected into the query
before `ORDER BY`/`LIMIT`, so the database returns exactly the requested
number of authorized rows.
Additionally, `GetChatsByOwnerID` is renamed to `GetChats` with
`OwnerID` as an optional (nullable) filter parameter, matching the
`GetWorkspaces` naming convention.
## Changes
| File | Change |
|------|--------|
| `queries/chats.sql` | Renamed to `GetChats`, `owner_id` now optional
via CASE/NULL, added `-- @authorize_filter` |
| `queries.sql.go` | Renamed constant, params struct (`GetChatsParams`),
and method |
| `querier.go` | Interface method renamed |
| `modelqueries.go` | Added `chatQuerier` interface +
`GetAuthorizedChats` impl |
| `dbauthz/dbauthz.go` | `GetChats` now uses `prepareSQLFilter` instead
of `fetchWithPostFilter` |
| `dbauthz/dbauthz_test.go` | Updated tests for SQL filter pattern |
| `dbmock/dbmock.go` | Renamed + added mock for `GetAuthorizedChats` |
| `dbmetrics/querymetrics.go` | Renamed + added metrics wrapper |
| `rbac/regosql/configs.go` | Added `ChatConverter` (maps `org_owner` to
empty string literal since `chats` has no `organization_id` column) |
| `rbac/authz.go` | Added `ConfigChats()` |
| `chats.go` | Handler uses renamed method with `uuid.NullUUID` |
| `searchquery/search.go` | Updated return type |
| `gitsync/worker.go` | Updated interface and call site |
| Various test files | Updated for renamed types |
Previously main.go used syscall.SysProcAttr{Setpgid: true} and
syscall.Kill, both undefined on Windows. This broke GOOS=windows
cross-compilation.
Add a //go:build !windows constraint to the package since it is
a dev-only tool that requires Unix utilities (bash, make, etc.)
and is not intended to run on Windows.
Refs #23054Fixescoder/internal#1407
## Problem
The WebSocket handler for `diff_status_change` events in
`AgentsPage.tsx` was triggering a burst of redundant HTTP requests on
every event:
1. **`invalidateChatListQueries(queryClient)`** — Full refetch of the
chats list endpoint. Unnecessary because `updateInfiniteChatsCache`
already writes `diff_status` into the sidebar cache optimistically on
every event.
2. **`invalidateQueries({ queryKey: chatKey(id) })`** — Refetch of the
individual chat. Also unnecessary — the SSE event carries `diff_status`
in its payload and the optimistic updater writes it into the `chatKey`
cache directly. Worse, this call was missing `exact: true`, so TanStack
Query's prefix matching cascaded the invalidation to `chatMessagesKey`,
`chatDiffContentsKey`, and every other query under `["chats", id]`.
Since diff status changes fire frequently during active agent work, this
spammed the chats list endpoint and caused redundant refetches of
messages and diff contents on every single event.
## Fix
Strip the handler down to the one invalidation that's actually needed —
`chatDiffContentsKey` (the file-level diff contents aren't in the SSE
payload):
```typescript
if (chatEvent.kind === "diff_status_change") {
void queryClient.invalidateQueries({
queryKey: chatDiffContentsKey(updatedChat.id),
exact: true,
});
}
```
## Why tests didn't catch this
The existing tests in `chats.test.ts` cover query utilities in isolation
(e.g. `invalidateChatListQueries` scoping, mutation invalidation). The
WebSocket event handler lives in the `AgentsPage` component — there was
no test covering what the `diff_status_change` code path actually
invalidates.
Added regression tests verifying that `exact: true` prevents
prefix-match cascade vs the old behavior.
## Summary
This PR removes two redundant chat rereads in `chatd`.
### Archive / unarchive
- `archiveChat` and `unarchiveChat` already come through
`httpmw.ChatParam`, so the handlers already have the `database.Chat`
row.
- Pass that row into `chatd.ArchiveChat` / `chatd.UnarchiveChat` instead
of rereading by ID before publishing the sidebar events.
### End-of-turn cleanup
- `processChat` no longer calls `GetChatByID` after the cleanup
transaction just to refresh the chat snapshot.
- Title generation already persists the generated title and emits its
own `title_change` event.
- To preserve best-effort title freshness for the cleanup path, the
async title-generation goroutine stores the generated title in per-turn
shared state and cleanup overlays it if available before publishing the
`status_change` event and dispatching push notifications.
## Why
- removes one DB read from archive / unarchive requests
- removes one DB read from completed turns, which is the larger hot-path
win
- keeps the existing pubsub/event contract intact instead of broadening
this into a larger event-model redesign
## Notes
- `title_change` remains the authoritative title update for clients
- cleanup does not wait for title generation; it uses the generated
title only when it is already available
- Add `--starter-template` option and properly create starter template
with name and icon
- Add Coder Desktop URLs to listening banner
- Makefile tweak to avoid rebuilding `scripts/develop` every time Go
code changes
## Summary
- reuse workspace agent context within a single `runChat()` turn
- remove duplicate latest-build agent lookups between
`resolveInstructions()` and `getWorkspaceConn()`
- avoid the extra `GetWorkspaceAgentByID` fetch when the selected
`WorkspaceAgent` already has the needed metadata
- add focused internal tests for reuse and refresh-on-dial-failure
## Why
This came out of a 5000-chat / 10-turn scaletest on bravo against a
single workspace.
The run completed successfully, but coderd stayed DB-pool bound, and one
workspace-backed hot path stood out:
- `GetWorkspaceAgentsInLatestBuildByWorkspaceID ≈ 46.7k`
- `GetWorkspaceByID ≈ 48.0k`
- `GetWorkspaceAgentByID ≈ 2.2k`
Within one `runChat()` turn, chatd was rediscovering the same workspace
agent multiple times just to resolve instructions and open the workspace
connection.
## What this changes
This PR introduces a **turn-local** workspace context helper so a single
acquired turn can:
- resolve the selected workspace agent once
- reuse that agent for instruction resolution
- reuse the same `AgentConn` for workspace tools and reload/compaction
This stays turn-local only, so a later turn on another replica still
rebuilds fresh context from the DB.
## Expected impact
This is an incremental improvement, not a full fix.
It should reduce duplicated workspace-agent lookups and shave some DB
pressure from a hot path for workspace-backed chats, while preserving
multi-replica correctness.
## Testing
- `go test ./coderd/chatd/...`
- `golangci-lint run ./coderd/chatd/...`
## Problem
When `generate.sh` is run (e.g. to regenerate fixtures after adding a
new field like `subagent_id`), the `duplicate-env-keys` fixture gets
UUID scrambling.
The `minimize_diff()` function uses a bash associative array keyed by
JSON field name (`deleted["id"]`). The `duplicate-env-keys` fixture has
multiple `coder_env` resources, each with the same key names (`id`,
`agent_id`). Since an associative array can only hold one value per key,
UUIDs get cross-contaminated or left as random terraform-generated
values.
Discovered while working on #23122.
## Fix
Add `duplicate-env-keys` to the `toskip` array in `generate.sh`,
alongside `kubernetes-metadata`. This fixture uses hand-crafted
placeholder UUIDs and should not be regenerated.
Relates to #21885.