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.*
## Summary
Fixes two classes of invalid/broken HTML in hand-written docs. Both are
visible problems in today's rendered docs, independent of any
docs-engine work.
1. **`</br>` is not a real HTML tag.** `br` is a void element with no
closing form; browsers error-correct `</br>`, but it is invalid HTML.
Replaced all 15 usages with `<br />` across:
- `docs/admin/templates/extending-templates/dynamic-parameters.md`
- `docs/admin/users/idp-sync.md`
- `docs/tutorials/best-practices/organizations.md`
2. **Browser-swallowed placeholder URL.** In
`docs/ai-coder/github-to-tasks.md`,
`https://<your-coder-url>/settings/external-auth` was unformatted, so
HTML renderers parse `<your-coder-url>` as an unknown tag and drop it.
The live docs currently render the broken text `re-authenticate at
https:///settings/external-auth`. Wrapped in backticks, matching every
other instance in the same file.
Table realignment noise in the diff is from `fmt/markdown` (`<br />` is
one character wider than `</br>`).
A repo-wide grep confirms no remaining `</br>` and no other unformatted
`https://<placeholder>` URLs in prose (other hits are inside code fences
or already backticked). The equivalent placeholder issues in
**generated** reference docs (CLI help strings, swagger annotations) are
intentionally out of scope and tracked separately in
[DOCS-551](https://linear.app/codercom/issue/DOCS-551/backtick-placeholder-syntax-in-generated-reference-docs-cli-help).
Tracking issue:
[DOCS-550](https://linear.app/codercom/issue/DOCS-550/fix-invalid-br-tags-and-browser-swallowed-placeholder-url-in-hand)
---
Created by Coder Agents on behalf of @nickvigilante.
Add a top-level "Get started" docs section to the nav and move the Quickstart to /docs/get-started, with inbound link updates and the install page TIP pointing to the Quickstart.
Filed via Coder Agents on Nick's behalf.
Adds a deprecation warning callout to the top of the main Coder Tasks
docs page (`docs/ai-coder/tasks.md`).
The message reads:
> Beginning June 2026, Coder Tasks will be deprecated. Support for Tasks
will be maintained on Coder's ESR release and through Coder v2.36. After
v2.36, support for Tasks will only be on our 12-month ESR release for
Coder Premium Customers.
Uses the existing `> [!WARNING]` admonition pattern already used for
deprecations elsewhere in the docs (e.g.
`docs/ai-coder/ai-gateway/mcp.md`).
Linear:
[CODAGT-157](https://linear.app/codercom/issue/CODAGT-157/ensure-docs-are-updated-for-beta)
---
_This PR was opened by Coder Agents on @davidfraley's behalf._
---------
Co-authored-by: Matt Vollmer <matthewjvollmer@outlook.com>
Nick Vigilante