diff --git a/.github/workflows/scorecard.yaml b/.github/workflows/scorecard.yaml
index cb73476..255f33d 100644
--- a/.github/workflows/scorecard.yaml
+++ b/.github/workflows/scorecard.yaml
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-24.04
     permissions:
       security-events: write # Upload SARIF to Code Scanning
-      id-token: write        # OIDC for publishing results
+      id-token: write # OIDC for publishing results
       contents: read
     steps:
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ce7ee37..7287e90 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,5 +1,16 @@
 # See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
 repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v6.0.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-merge-conflict
+      - id: check-added-large-files
+      - id: check-case-conflict
+
   - repo: https://github.com/keith/pre-commit-buildifier
     rev: 8.5.1.1
     hooks:
@@ -10,3 +21,9 @@ repos:
     rev: v1.48.0
     hooks:
       - id: typos
+
+  - repo: https://github.com/rbubley/mirrors-prettier
+    rev: v3.9.4
+    hooks:
+      - id: prettier
+        types_or: [markdown, yaml]
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..399ade2
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,27 @@
+# Bazel — handled by buildifier
+*.bzl
+BUILD
+BUILD.bazel
+WORKSPACE
+WORKSPACE.bzlmod
+MODULE.bazel
+MODULE.bazel.lock
+.bazelversion
+.bazelrc
+
+# Generated / cache
+bazel-*
+**/bazel-*
+.venv/
+*.runfiles/
+
+# Odin source — not prettier's domain
+*.odin
+
+# Plain text (not Markdown/YAML)
+LICENSE
+NOTICE
+
+# Personal (gitignored anyway, but exclude for safety)
+TODO.md
+AGENTS.md
diff --git a/COMPATIBILITY.md b/COMPATIBILITY.md
index 4d91f57..bfc180c 100644
--- a/COMPATIBILITY.md
+++ b/COMPATIBILITY.md
@@ -39,8 +39,8 @@ Supported version matrix for `rules_odin`.
 rules_odin downloads the Odin compiler hermetically, but the **linker** must be
 available on the host:
 
-| Platform | Required Host Tool                                |
-| -------- | ------------------------------------------------- |
-| Linux    | `clang` (via system package manager)              |
-| macOS    | Xcode Command Line Tools (`xcode-select --install`)|
-| Windows  | MSVC Build Tools (Visual Studio)                  |
+| Platform | Required Host Tool                                  |
+| -------- | --------------------------------------------------- |
+| Linux    | `clang` (via system package manager)                |
+| macOS    | Xcode Command Line Tools (`xcode-select --install`) |
+| Windows  | MSVC Build Tools (Visual Studio)                    |
diff --git a/README.md b/README.md
index caa60cf..68ecb0a 100644
--- a/README.md
+++ b/README.md
@@ -61,15 +61,15 @@ import greetings "greetings:lib"  // collection:name → lib/ directory
 
 Compiles an Odin package (directory of `.odin` files) into an executable.
 
-| Attribute              | Type          | Default      | Description                              |
-| ---------------------- | ------------- | ------------ | ---------------------------------------- |
-| `srcs`                 | label_list    | **required** | Odin source files (must share a package) |
-| `deps`                 | label_list    | `[]`         | `odin_library` targets to import as collections |
-| `optimization`         | string        | `"none"`     | One of: none, minimal, speed, size, aggressive |
-| `debug`                | bool          | `True`       | Include debug symbols                    |
-| `defines`              | string_dict   | `{}`         | Compile-time `-define:` values           |
-| `extra_compiler_flags` | string_list   | `[]`         | Additional flags passed to `odin build`  |
-| `vet`                  | bool          | `False`      | Enable `-vet` checks                     |
+| Attribute              | Type        | Default      | Description                                     |
+| ---------------------- | ----------- | ------------ | ----------------------------------------------- |
+| `srcs`                 | label_list  | **required** | Odin source files (must share a package)        |
+| `deps`                 | label_list  | `[]`         | `odin_library` targets to import as collections |
+| `optimization`         | string      | `"none"`     | One of: none, minimal, speed, size, aggressive  |
+| `debug`                | bool        | `True`       | Include debug symbols                           |
+| `defines`              | string_dict | `{}`         | Compile-time `-define:` values                  |
+| `extra_compiler_flags` | string_list | `[]`         | Additional flags passed to `odin build`         |
+| `vet`                  | bool        | `False`      | Enable `-vet` checks                            |
 
 ### `odin_library`
 
@@ -81,10 +81,10 @@ Groups Odin source files into a library that can be imported by `odin_binary` ta
 
 ## Supported Odin Versions
 
-| Version      | Status    |
-| ------------ | --------- |
-| dev-2026-06  | Supported |
-| dev-2026-05  | Supported |
+| Version     | Status    |
+| ----------- | --------- |
+| dev-2026-06 | Supported |
+| dev-2026-05 | Supported |
 
 See [COMPATIBILITY.md](COMPATIBILITY.md) for the full version matrix.