diff --git a/AGENTS.md b/AGENTS.md
index e6ebb5d..90c74b1 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -48,6 +48,10 @@ real fetch and worker loops against the fake, which retry, lease-expiry, and sch
 
 Real work **not scheduled** becomes a GitHub issue.
 
+Every link in `README.md` must be absolute: `https://github.com/modern-python/<repo>/blob/main/<path>`,
+or `.../tree/main/<path>` for a directory. Never a relative path: `README.md` is also the PyPI long
+description, and PyPI does not rewrite relative links, so a relative one 404s on the package page.
+
 An invariant is a test whose name is the claim, with a docstring opening `INVARIANT:` and a second
 paragraph naming **what breaks it** — design rationale, not a report of what this one test catches;
 a sibling test may be the one that trips. `tests/test_invariant_census.py` enforces that shape.
diff --git a/README.md b/README.md
index 43a3542..12fdeeb 100644
--- a/README.md
+++ b/README.md
@@ -121,7 +121,7 @@ The architecture of this package is heavily informed by Arseniy Popov's [PR #270
 
 ## 📦 [PyPI](https://pypi.org/project/faststream-outbox)
 
-## 📝 [License](LICENSE)
+## 📝 [License](https://github.com/modern-python/faststream-outbox/blob/main/LICENSE)
 
 ## Part of `modern-python`