diff --git a/changelog.d/added-509-crux-community-pages.md b/changelog.d/added-509-crux-community-pages.md
new file mode 100644
index 00000000..764348d0
--- /dev/null
+++ b/changelog.d/added-509-crux-community-pages.md
@@ -0,0 +1,2 @@
+- Added Crux to the project family table in `what-is-hive-commons.md` and to the
+  "useful on their own" list in `join-hive-commons.md` (hivecommons/docs#509).
diff --git a/docs/content/community/join-hive-commons.md b/docs/content/community/join-hive-commons.md
index 3ec7647e..70126bd0 100644
--- a/docs/content/community/join-hive-commons.md
+++ b/docs/content/community/join-hive-commons.md
@@ -17,7 +17,7 @@ If that describes your project, we invite you to propose joining the family.
 - **Maintained.** At least one active maintainer willing to show up at the
   biweekly community meeting while the project settles in.
 
-Projects do not need to depend on Hive. hotshot, pluk, promptargs, dibs and
+Projects do not need to depend on Hive. hotshot, pluk, promptargs, dibs, Crux and
 Spektacular are all useful entirely on their own, and rationguard needs only
 pluk — they belong here because they solve adjacent problems for the same
 people.
diff --git a/docs/content/community/what-is-hive-commons.md b/docs/content/community/what-is-hive-commons.md
index 9c6a38f7..3ebbd3f0 100644
--- a/docs/content/community/what-is-hive-commons.md
+++ b/docs/content/community/what-is-hive-commons.md
@@ -76,6 +76,7 @@ The result is an **elastic swarm**: a three-person project can have a dozen cont
 | [**promptargs**](https://github.com/hivecommons/promptargs) | Template expansion for prompts across Claude Code, Copilot, Goose, Bob, and others. | [promptargs docs](/docs/promptargs/overview/introduction) |
 | [**rationguard**](https://github.com/hivecommons/rationguard) | Detects and rebuts rationalization patterns in agent output. | [rationguard docs](/docs/rationguard/overview/introduction) |
 | [**dibs**](https://github.com/hivecommons/dibs) | Contributor attribution for the AI-agent era: your idea, your credit, their code. | [dibs docs](/docs/dibs/overview/introduction) |
+| [**Crux**](https://github.com/hivecommons/crux) | Runs AI coding agents for you: starts, monitors, and stops them across Claude, Copilot, Gemini, Goose, Codex, Aider and Bob. The engine inside Hive, usable on its own. | [Crux docs](/docs/crux/overview/introduction) |
 
 ## Where next