From 8b051c2c43fc11d51e0dbe45e8ff5cda973bea94 Mon Sep 17 00:00:00 2001
From: Joseph Mearman <joseph@mearman.co.uk>
Date: Thu, 10 Sep 2026 07:13:32 +0100
Subject: [PATCH] ci: read the Node version from .tool-versions instead of two
 hardcoded values

cddl-validate and conformance-verify each hardcoded their own Node
version ('22' and '26'), an inconsistency with no single source of
truth. actions/setup-node's node-version-file now reads .tool-versions
for both jobs, matching the pattern agent-comms already uses.
---
 .github/workflows/ci.yml | 4 ++--
 .tool-versions           | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)
 create mode 100644 .tool-versions

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8abd546..38cd665 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
 
       - uses: actions/setup-node@v7
         with:
-          node-version: '22'
+          node-version-file: .tool-versions
 
       - name: Regenerate protocol.cddl and confirm it matches the committed file
         working-directory: spec
@@ -73,7 +73,7 @@ jobs:
 
       - uses: actions/setup-node@v7
         with:
-          node-version: '26'
+          node-version-file: .tool-versions
           cache: pnpm
           cache-dependency-path: conformance/pnpm-lock.yaml
 
diff --git a/.tool-versions b/.tool-versions
new file mode 100644
index 0000000..d0b4db8
--- /dev/null
+++ b/.tool-versions
@@ -0,0 +1 @@
+nodejs 26