diff --git a/agents/della/work/queue-224/BUILD.md b/agents/della/work/queue-224/BUILD.md
index cca20e842..b90da55cc 100644
--- a/agents/della/work/queue-224/BUILD.md
+++ b/agents/della/work/queue-224/BUILD.md
@@ -611,3 +611,12 @@ test at packages/harness/tests/library-tools.test.mjs:57:1
     exitCode: 2
   }
 ```
+
+## sage-4213 — creative fixture credential reference
+
+Only the new library-tools.test.mjs role() helper now gives bean its required
+gitea reference copied from coder, matching creative.test.mjs:27. No assertion,
+shared helper, old test or production change. One whole harness-file retry
+then seven upstream files, whole bus/harness, M-B1 and clean-tree check are
+cleared; no CLI or lookup rerun needed (both passed, unchanged). Each child
+sets absolute niceness 19 before exec, with fresh shell gXXX TMPDIR.
diff --git a/packages/harness/tests/library-tools.test.mjs b/packages/harness/tests/library-tools.test.mjs
index 9208a208f..14263df4b 100644
--- a/packages/harness/tests/library-tools.test.mjs
+++ b/packages/harness/tests/library-tools.test.mjs
@@ -11,7 +11,7 @@ import { HARNESS, REPO_SKILLS, resolvedFor, scratch } from './helpers.mjs';
 const LOOKUPS = ['library_find', 'library_get', 'library_search', 'library_manuscript', 'library_universe'];
 const CREATIVE = ['companion', 'research', 'ideas', 'proofreader', 'fact-checker', 'continuity'];
 const role = (t, definition, harness = 'pi') => resolvedFor(t, 'bean', d => {
-  d.roles.bean = { definition, vars: { harness, model: 'claude-sonnet-5-5', thinking: 'high' } };
+  d.roles.bean = { definition, credentials: { gitea: { ...d.roles.coder.credentials.gitea } }, vars: { harness, model: 'claude-sonnet-5-5', thinking: 'high' } };
 });
 const expected = definition => ['send_message', ...(['companion', 'research'].includes(definition)
   ? ['web_search', 'web_fetch'] : []), ...LOOKUPS];