## What
Two small monitoring-doc fixes surfaced by the runtime drift sweep.
### `docs/admin/integrations/prometheus.md`
The native-histograms list showed
`coderd_template_coderd_template_workspace_build_duration_seconds`
(doubled `coderd_template_` prefix). The correct metric name, per the
metrics table earlier on the same page and the generated metrics, is
`coderd_template_workspace_build_duration_seconds`.
### `docs/admin/monitoring/notifications/slack.md`
The `CODER_NOTIFICATIONS_WEBHOOK_ENDPOINT` export ended with a stray
backtick:
```
export CODER_NOTIFICATIONS_WEBHOOK_ENDPOINT=http://localhost:6000/v1/webhook`
```
On paste, bash treats the trailing backtick as an unterminated command
substitution and errors. Removed it.
Both reproduced during the runtime drift sweep and verified against
`main`.
Linear:
[DOCS-647](https://linear.app/codercom/issue/DOCS-647/docs-fix-monitoring-examples-prometheus-metric-name-slack-webhook)
> This PR was created with AI assistance (Coder Agents).
Normalizes non-standard code-fence language tags across `docs/**` so a
strict highlighter (Shiki, used by Fumadocs) won't fail the build on an
unrecognized language, and unifies redundant synonym tags onto one
canonical form per language. The current renderer (Speed-Highlight)
detects the language from the code content, not the fence label, so this
drift wasn't visible until now.
## Changes
- `hcl` -> `tf` (199 fences, including indented ones nested in
numbered/bulleted lists). Shiki ships `hcl` and `terraform` as two
distinct grammars (not aliases); every `hcl`-tagged fence in `docs/**`
is actually Terraform resource/data/provider syntax, so the more
specific `terraform` grammar is correct for all of them. `tf` is Shiki's
own alias for that grammar, and it's also what GitHub's own markdown
renderer resolves to the same HCL/Terraform highlighting.
- `pwsh`/`powershell` -> `ps1`. Both `ps` and `ps1` are registered
PowerShell aliases in Shiki, but on GitHub's renderer only `.ps1` is a
registered file extension (`.ps` isn't), so `ps1` renders identically to
`powershell` there today while bare `ps` would silently lose
highlighting.
- `env` -> `dotenv` (a dedicated Shiki grammar for `KEY=VALUE` files)
- `text`/`output`/`none`/`url` -> `txt`. Same built-in plain-text
fallback either way, just shorter.
- `Dockerfile` -> `dockerfile` (lowercase)
- `bash`/`shell` -> `sh` (732 fences). Shiki and GitHub both alias all
three to a single shell grammar; this was already the style guide's
stated preference, just not enforced across the existing corpus until
now.
- `markdown` -> `md` (4 fences). Alias of the same grammar in both Shiki
and GitHub.
- `jsonc` -> `json` (1 fence). The block has no comments or trailing
commas, so it doesn't need the comments-capable grammar.
- `ts` -> `tsx` (2 fences, `docs/about/contributing/frontend.md`).
Verified the actual content tokenizes identically under both grammars,
and a sibling block in the same file already needs `tsx` for real JSX,
so unifying to one tag is safe for this file. Documented a caveat: `tsx`
mis-tokenizes the legacy angle-bracket type-assertion syntax
(`<Type>value`), which is invalid in real `.tsx` files anyway, so use
`value as Type` instead.
- `yml` -> `yaml` (1 fence)
- Updated `docs/.style/style-guide/formatting.md` to document all
canonical tags
`promql` (2 fences) and `caddyfile` (2 fences) are left as-is. Shiki
doesn't bundle a grammar for either, so they need a custom grammar
registration when the site adopts Shiki, rather than degrading to `txt`.
Tracked as follow-up work under DOCS-118 and
[DOCS-544](https://linear.app/codercom/issue/DOCS-544/vendor-a-local-promql-grammar-for-shiki-syntax-highlighting)
(promql).
Does not touch `offlinedocs/`.
Linear:
[DOCS-476](https://linear.app/codercom/issue/DOCS-476/normalize-docs-code-fence-languages-de-risk-shikifumadocs)
<details>
<summary>How the fence tags were verified</summary>
Each tag was tested against a real `shiki@latest` highlighter instance
(`codeToHtml`/`codeToTokens`) and cross-checked against GitHub's
`@wooorm/starry-night` grammar sources (the renderer that actually
displays these `.md` files today, in repo browsing and PR diffs), since
that's what determines whether brevity is safe before Shiki adoption:
```text
FAIL env -- Language `env` is not included in this bundle.
FAIL Dockerfile -- Language `Dockerfile` is not included in this bundle.
FAIL promql -- Language `promql` is not included in this bundle.
FAIL caddyfile -- Language `caddyfile` is not included in this bundle.
FAIL pwsh -- Language `pwsh` is not included in this bundle.
FAIL output -- Language `output` is not included in this bundle.
```
`hcl` doesn't error in Shiki, since it's a real grammar, but that's
exactly the trap: it was silently rendering every fence with the generic
HCL grammar instead of the Terraform-specific one. Every `hcl`-tagged
fence in `docs/**` was manually checked against `origin/main` and is
genuinely Terraform content.
For `ts`/`tsx`, tokenizing the actual doc content confirmed identical
output under both grammars; a synthetic test with the legacy
angle-bracket cast syntax confirmed `tsx` degrades on that specific
construct, which the style guide now calls out.
The first normalization pass only matched fence tags at column 0
(`^```tag$`), missing tags indented inside numbered/bulleted lists. A
follow-up pass caught the remaining occurrences at any indentation
level.
</details>
---
*This PR description and the underlying changes were prepared with Coder
Agents assistance.*
Closes DOCS-66.
Adds a `[!NOTE]` callout to `docs/admin/monitoring/logs.md` documenting
that `--log-human=""` (empty string) does not disable human-readable
logging; the working value is `--log-human=/dev/null`.
## Context
Reported by Bjorn Robertsson in `#docs` on 2026-04-29. Operators trying
to silence the human-readable log stream had been setting `--log-human`
(or `CODER_LOGGING_HUMAN`) to an empty string and getting unchanged log
output. The empty-string path hits a 2023-vintage code path that falls
back to the default `/dev/stderr` instead of disabling output.
This PR documents the workaround on the admin-facing logs page. The CLI
flag reference under `docs/reference/cli/server.md` is auto-generated
and intentionally left unchanged. A separate engineering issue may be
worth filing to fix the root cause (empty string should either disable
or surface a warning).
> [!NOTE]
> This is a docs-only change. No product code was modified.
---
*Generated by Coder Agents on behalf of @nickvigilante.*
## Description
When configuring a From address with a display name (e.g., `Coder System
<system@coder.com>`), the SMTP `MAIL FROM` command was incorrectly
receiving the full address string instead of just the bare email
address, causing `501 Invalid MAIL argument` errors on some SMTP
servers.
## Changes
- Updated `validateFromAddr` to return both:
- `envelopeFrom`: bare email for SMTP `MAIL FROM` command (RFC 5321)
- `headerFrom`: original address with display name for email header (RFC
5322)
Fixes#20727
Document configurable retention policies for Audit Logs, Connection Logs,
and API keys. Add new data-retention.md page and update existing docs to
reference it.
Depends on #21021
Updates #20743
## Description
Adds support for sending an ad‑hoc custom notification to the
authenticated user via API and CLI. This is useful for surfacing the
result of scripts or long‑running tasks. Notifications are delivered
through the configured method and the dashboard Inbox, respecting
existing preferences and delivery settings.
## Changes
* New notification template: “Custom Notification” with a label for a
custom title and a custom message.
* New API endpoint: `POST /api/v2/notifications/custom` to send a custom
notification to the requesting user.
* New API endpoint: `GET /notifications/templates/custom` to get custom
notification template.
* New CLI subcommand: `coder notifications custom <title> <message>` to
send a custom notification to the requesting user.
* Documentation updates: Add a “Custom notifications” section under
Administration > Monitoring > Notifications, including instructions on
sending custom notifications and examples of when to use them.
Closes: https://github.com/coder/coder/issues/19611
closes#18833
replace suggestions to use the now-deprecated `CODER_VERBOSE` with more
specific `CODER_LOG_FILTER`
thanks @UnicornyRainbow!
---------
Co-authored-by: EdwardAngert <17991901+EdwardAngert@users.noreply.github.com>
## Issue
Closes#16206
(thanks @bjornrobertsson - not sure why I can't tag you as a reviewer)
Mismatch between the SMTP configuration UI and the documentation.
## Verification
Claude verified this issue by examining:
1. The current SMTP configuration code in the codebase
2. The CLI help documentation for the server command
3. The examples provided in the notifications documentation
The issue was confirmed by finding:
- A reference to a deprecated variable
`CODER_NOTIFICATIONS_EMAIL_FORCE_TLS` instead of the current
`CODER_EMAIL_FORCE_TLS`
- Missing information about the port format required for the SMTP
smarthost
## Changes made
1. Updated the `--email-smarthost` description to clarify that the
format should include both hostname and port: `(format:
hostname:port)`
2. Fixed the reference to the TLS environment variable in the STARTTLS
description, replacing the deprecated
`CODER_NOTIFICATIONS_EMAIL_FORCE_TLS` with the correct
`CODER_EMAIL_FORCE_TLS`
## Additional information
The Gmail and Outlook examples in the documentation already correctly
show the port included in the smarthost configuration, but the main
description table needed to be updated to explicitly mention this
requirement.
[preview](https://coder.com/docs/@16206-smtp-required-components/admin/monitoring/notifications)
<sub>🤖 Generated with [Claude Code](https://claude.ai/code)</sub>
---------
Co-authored-by: EdwardAngert <17991901+EdwardAngert@users.noreply.github.com>
Co-authored-by: Claude <noreply@anthropic.com>
Enabling the notifications experiment was only required in 2.15.0, so we
can reduce the loudness of this callout.
---------
Co-authored-by: EdwardAngert <EdwardAngert@users.noreply.github.com>
Resolves https://github.com/coder/coder/issues/15513
Disables notifications when both `$CODER_NOTIFICATIONS_WEBHOOK_ENDPOINT` and `$CODER_EMAIL_SMARTHOST` are unset.
Breaking change: `$CODER_EMAIL_SMARTHOST` is no longer set by default as `localhost:587`, meaning any deployments that make use of this default value will need to add it back.
---------
Co-authored-by: Danny Kopping <danny@coder.com>
Co-authored-by: Mathias Fredriksson <mafredri@gmail.com>
Jon Ayers