Zed Improved. Aiming to improve upon Zed and make a truly delightful code editor. https://zed.dev
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Ben Kunkle 3824751e61
Add meta description tag to docs pages (#35112)
Closes #ISSUE

Adds basic frontmatter support to `.md` files in docs. The only
supported keys currently are `description` which becomes a `<meta
name="description" contents="...">` tag, and `title` which becomes a
normal `title` tag, with the title contents prefixed with the subject of
the file.

An example of the syntax can be found in `git.md`, as well as below

```md
---
title: Some more detailed title for this page
description: A page-specific description
---

# Editor
```

The above will be transformed into (with non-relevant tags removed)

```html
<head>
    <title>Editor | Some more detailed title for this page</title>
    <meta name="description" contents="A page-specific description">
</head>
<body>
<h1>Editor</h1>
</body>
```

If no front-matter is provided, or If one or both keys aren't provided,
the title and description will be set based on the `default-title` and
`default-description` keys in `book.toml` respectively.

## Implementation details

Unfortunately, `mdbook` does not support post-processing like it does
pre-processing, and only supports defining one description to put in the
meta tag per book rather than per file. So in order to apply
post-processing (necessary to modify the html head tags) the global book
description is set to a marker value `#description#` and the html
renderer is replaced with a sub-command of `docs_preprocessor` that
wraps the builtin `html` renderer and applies post-processing to the
`html` files, replacing the marker value and the `<title>(.*)</title>`
with the contents of the front-matter if there is one.

## Known limitations

The front-matter parsing is extremely simple, which avoids needing to
take on an additional dependency, or implement full yaml parsing.

* Double quotes and multi-line values are not supported, i.e. Keys and
values must be entirely on the same line, with no double quotes around
the value.

The following will not work:

```md
---
title: Some
 Multi-line
 Title
---
```

* The front-matter must be at the top of the file, with only white-space
preceding it

* The contents of the title and description will not be html-escaped.
They should be simple ascii text with no unicode or emoji characters

Release Notes:

- N/A *or* Added/Fixed/Improved ...

---------

Co-authored-by: Katie Greer <katie@zed.dev>
2025-07-29 23:01:03 +00:00
.cargo windows: Publish nightly (#24800) 2025-07-09 08:57:03 +08:00
.cloudflare docs: Document context servers (#21170) 2024-11-25 11:05:14 -05:00
.config collab: Add screen selector (#31506) 2025-07-21 13:44:51 +02:00
.github Fix nightly icon (#35204) 2025-07-29 18:01:07 +02:00
.zed Ensure *.json recognized as JSONC if checkout folder not zed (#34289) 2025-07-11 14:25:09 +00:00
assets Adjust Zed badge (#35294) 2025-07-29 15:09:31 -04:00
crates Add meta description tag to docs pages (#35112) 2025-07-29 23:01:03 +00:00
docs Add meta description tag to docs pages (#35112) 2025-07-29 23:01:03 +00:00
extensions emmet: Bump to 0.0.4 (#35305) 2025-07-29 22:46:17 +00:00
legal ci: Check for broken links (#30844) 2025-06-06 09:39:35 +00:00
nix nix: Make zeditor symlink in package output (#31354) 2025-05-26 08:59:52 -07:00
script Fix nightly icon (#35204) 2025-07-29 18:01:07 +02:00
tooling Upgrade rodio to 0.21 (#34368) 2025-07-29 13:24:34 -07:00
.clinerules Initial .rules file for agent with symlinks for other rules file paths (#29014) 2025-04-17 23:41:23 +00:00
.cursorrules Initial .rules file for agent with symlinks for other rules file paths (#29014) 2025-04-17 23:41:23 +00:00
.git-blame-ignore-revs Add PR 15352 to .git-blame-ignore-revs (#30870) 2025-05-17 11:35:58 +00:00
.gitattributes Prevent GitHub from displaying comments within JSON files as errors (#7043) 2024-01-29 23:11:25 -05:00
.gitignore Account for issue types in top-ranking issues script (#33118) 2025-06-20 14:19:29 -04:00
.mailmap Update .mailmap (#30874) 2025-05-17 12:34:42 +00:00
.prettierrc ci: Add check for formatting default.json (#30034) 2025-05-06 18:55:26 +00:00
.rules gpui: Simplify Action macros + support doc comments in actions! (#33263) 2025-06-24 04:34:51 +00:00
.windsurfrules Initial .rules file for agent with symlinks for other rules file paths (#29014) 2025-04-17 23:41:23 +00:00
Cargo.lock Add meta description tag to docs pages (#35112) 2025-07-29 23:01:03 +00:00
Cargo.toml ACP over MCP server impl (#35196) 2025-07-28 14:14:10 +00:00
CLAUDE.md Initial .rules file for agent with symlinks for other rules file paths (#29014) 2025-04-17 23:41:23 +00:00
clippy.toml Restructure agent context (#29233) 2025-04-24 21:29:33 +00:00
CODE_OF_CONDUCT.md Remove community content from docs and point to zed.dev (#19895) 2024-10-29 09:44:58 -04:00
compose.yml Set stripe-mock version to 0.178.0 to match stripe API version used (#34786) 2025-07-20 19:39:04 +00:00
CONTRIBUTING.md Allow icon themes to provide their own file associations (#24926) 2025-02-15 00:35:13 +00:00
Cross.toml Add remote server cross compilation (#19136) 2024-10-12 23:23:56 -07:00
debug.plist WIP 2023-12-14 09:25:14 -07:00
default.nix Fix nix build (#26270) 2025-03-10 01:06:11 -07:00
docker-compose.sql collab: Setup database for LLM service (#15882) 2024-08-06 17:18:08 -04:00
Dockerfile-collab chore: Bump Rust version to 1.88 (#33439) 2025-06-26 20:54:19 +02:00
Dockerfile-collab.dockerignore ci: Move collab to Dockerfile-collab (#18515) 2024-09-30 16:14:26 -04:00
Dockerfile-cross Add remote server cross compilation (#19136) 2024-10-12 23:23:56 -07:00
Dockerfile-cross.dockerignore Add remote server cross compilation (#19136) 2024-10-12 23:23:56 -07:00
Dockerfile-distros Support More Linux (#18480) 2024-09-30 17:46:21 -04:00
Dockerfile-distros.dockerignore Support More Linux (#18480) 2024-09-30 17:46:21 -04:00
flake.lock nix: Update to access new rust toolchain version (#33476) 2025-06-26 20:31:24 +00:00
flake.nix nix: Add job names and garnix substitutor (#31625) 2025-05-28 13:32:12 -07:00
LICENSE-AGPL Update license year (#24191) 2025-02-04 09:02:59 -05:00
LICENSE-APACHE Update license year (#24191) 2025-02-04 09:02:59 -05:00
LICENSE-GPL Licenses: change license fields in Cargo.toml to AGPL-3.0-or-later. (#5535) 2024-01-27 13:51:16 +01:00
livekit.yaml Add LiveKit server to Docker Compose (#7907) 2024-02-16 10:49:48 -05:00
lychee.toml ci: Check for broken links (#30844) 2025-06-06 09:39:35 +00:00
Procfile Refactor: Restructure collab main function to prepare for new subcommand: serve llm (#15824) 2024-08-05 12:07:38 -07:00
Procfile.postgrest Fix llm queries (#16006) 2024-08-08 17:21:38 -07:00
README.md Adjust Zed badge (#35290) 2025-07-29 14:24:10 -04:00
renovate.json renovate: Require dependency dashboard approval for updates (#29065) 2025-04-18 18:44:30 +00:00
rust-toolchain.toml chore: Bump Rust version to 1.88 (#33439) 2025-06-26 20:54:19 +02:00
shell.nix Fix nix build (#26270) 2025-03-10 01:06:11 -07:00
typos.toml windows: Publish nightly (#24800) 2025-07-09 08:57:03 +08:00

Zed

Zed CI

Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.


Installation

On macOS and Linux you can download Zed directly or install Zed via your local package manager.

Other platforms are not yet available:

Developing Zed

Contributing

See CONTRIBUTING.md for ways you can contribute to Zed.

Also... we're hiring! Check out our jobs page for open roles.

Licensing

License information for third party dependencies must be correctly provided for CI to pass.

We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:

  • Is it showing a no license specified error for a crate you've created? If so, add publish = false under [package] in your crate's Cargo.toml.
  • Is the error failed to satisfy license requirements for a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to the accepted array in script/licenses/zed-licenses.toml.
  • Is cargo-about unable to find the license for a dependency? If so, add a clarification field at the end of script/licenses/zed-licenses.toml, as specified in the cargo-about book.