diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index 19188366..720972aa 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -23,7 +23,8 @@
 - [ ] I have performed a self-review of my code
 - [ ] For any new/modified functions/classes I have added docstrings that clearly describe its purpose, expected inputs and returned values
 - [ ] I have placed in-line comments to clarify the intent of any hard-to-understand passages of my code
-- [ ] I have updated the [README](README.MD) to cover introduced code changes
+- [ ] I have updated the [README](../README.md) to cover introduced code changes
+- [ ] If this PR changes contributor workflow, I've updated CONTRIBUTING.md / AGENTS.md
 - [ ] I have added tests that prove my fix is effective or that my feature works
 - [ ] I have given the PR a name that clearly describes the change, written in imperative form ([context](https://www.gitkraken.com/learn/git/best-practices/git-commit-message#using-imperative-verb-form)).
 - [ ] I have requested a reviewer and an assignee (assignee is responsible for merging). This applies only if you have write access to the repo, otherwise feel free to tag a maintainer to add a reviewer and assignee.
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 229326ea..8d07a443 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -18,6 +18,14 @@ repos:
       - id: codespell
         description: Check for spelling errors
 
+  - repo: https://github.com/lycheeverse/lychee
+    rev: lychee-v0.24.2
+    hooks:
+      - id: lychee
+        description: Check Markdown links
+        args: ["--config", "lychee.toml"]
+        types: [markdown]
+
   - repo: https://github.com/psf/black
     rev: 25.11.0
     hooks:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd123dee..18a33347 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -78,6 +78,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Maintenance
 
+- Add a lychee pre-commit hook for Markdown links and a PR-template reminder to keep contributor workflow docs current [#655](https://github.com/mllam/neural-lam/issues/655) @beanscg
+
 - Add comprehensive type hints to GraphLAM in `neural_lam/models/step_predictors/graph/graph_lam.py` [\#669](https://github.com/mllam/neural-lam/pull/669) @GiGiKoneti
 
 - Add comprehensive type hints to ARForecaster in `neural_lam/models/forecasters/autoregressive.py` [\#663](https://github.com/mllam/neural-lam/pull/663) @GiGiKoneti
diff --git a/README.md b/README.md
index 35d029a6..caaaee51 100644
--- a/README.md
+++ b/README.md
@@ -248,7 +248,7 @@ in neural-lam, are done in a separate package called
 [mllam-data-prep](https://github.com/mllam/mllam-data-prep) rather than in
 neural-lam itself.
 Specifically, the `mllam-data-prep` datastore configuration (for example
-[danra.datastore.yaml](tests/datastore_examples/mdp/danra.datastore.yaml))
+[danra.datastore.yaml](tests/datastore_examples/mdp/danra_100m_winds/danra.datastore.yaml))
 specifies a) what source datasets to read from, b) what variables to select, c)
 what transformations of dimensions and variables to make, d) what statistics to
 calculate (for normalisation) and e) how to split the data into training,
diff --git a/lychee.toml b/lychee.toml
new file mode 100644
index 00000000..2050f9b2
--- /dev/null
+++ b/lychee.toml
@@ -0,0 +1,8 @@
+include_fragments = "full"
+timeout = 20
+
+exclude = [
+    "^https://join\\.slack\\.com/t/ml-lam/shared_invite/",
+    "^https://kutt\\.to/mllam$",
+    "^https://pyg\\.org/?$",
+]