diff --git a/.claude/projects/-Users-gb-Projects-bDS2/memory/feedback_targeted_debugging.md b/.claude/projects/-Users-gb-Projects-bDS2/memory/feedback_targeted_debugging.md
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+++ b/.claude/projects/-Users-gb-Projects-bDS2/memory/feedback_targeted_debugging.md
@@ -0,0 +1,11 @@
+---
+name: Debug targeted, don't brute-force
+description: When investigating flaky tests, analyze the code and fix — don't brute-force with repeated full suite runs
+type: feedback
+---
+
+If you already know which test is failing and why, fix it. Don't waste time running the full suite 20 times hoping to capture output.
+
+**Why:** It's slow, wasteful, and avoids thinking. Analyze the code, understand the race, fix it.
+
+**How to apply:** When a test fails, read the test, understand what it does, identify the root cause, and fix it. Only re-run to verify the fix, not to gather more data you already have.
diff --git a/tmp/BDS.TOCTOU.FileSystemTest/test-read_template_file-2-protocol-uses-atomic-read-reads-existing-template-0fbdd3d0/footer.liquid b/tmp/BDS.TOCTOU.FileSystemTest/test-read_template_file-2-protocol-uses-atomic-read-reads-existing-template-0fbdd3d0/footer.liquid
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+++ b/tmp/BDS.TOCTOU.FileSystemTest/test-read_template_file-2-protocol-uses-atomic-read-reads-existing-template-0fbdd3d0/footer.liquid
@@ -0,0 +1 @@
+FOOTER
\ No newline at end of file
diff --git a/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-falls-through-to-next-root-path-when-first-is-missing-ac96bedd/b/partial.liquid b/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-falls-through-to-next-root-path-when-first-is-missing-ac96bedd/b/partial.liquid
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--- /dev/null
+++ b/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-falls-through-to-next-root-path-when-first-is-missing-ac96bedd/b/partial.liquid
@@ -0,0 +1 @@
+FROM B
\ No newline at end of file
diff --git a/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-first-root-path-wins-when-both-have-the-template-69386ef3/a/shared.liquid b/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-first-root-path-wins-when-both-have-the-template-69386ef3/a/shared.liquid
new file mode 100644
index 0000000..5022730
--- /dev/null
+++ b/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-first-root-path-wins-when-both-have-the-template-69386ef3/a/shared.liquid
@@ -0,0 +1 @@
+FROM A
\ No newline at end of file
diff --git a/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-first-root-path-wins-when-both-have-the-template-69386ef3/b/shared.liquid b/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-first-root-path-wins-when-both-have-the-template-69386ef3/b/shared.liquid
new file mode 100644
index 0000000..398c808
--- /dev/null
+++ b/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-first-root-path-wins-when-both-have-the-template-69386ef3/b/shared.liquid
@@ -0,0 +1 @@
+FROM B
\ No newline at end of file
diff --git a/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-reads-file-atomically-without-separate-existence-check-8a97013f/header.liquid b/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-reads-file-atomically-without-separate-existence-check-8a97013f/header.liquid
new file mode 100644
index 0000000..d157ffa
--- /dev/null
+++ b/tmp/BDS.TOCTOU.FileSystemTest/test-try_read-2-eliminates-TOCTOU-race-reads-file-atomically-without-separate-existence-check-8a97013f/header.liquid
@@ -0,0 +1 @@
+HEADER CONTENT
\ No newline at end of file