diff --git a/!/tags/davila7.svg b/!/tags/davila7.svg
new file mode 100644
index 0000000..b23e88d
--- /dev/null
+++ b/!/tags/davila7.svg
@@ -0,0 +1,17 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="56" height="20" role="img" aria-label="davila7">
+  <title>davila7</title>
+  <linearGradient id="s" x2="0" y2="100%">
+    <stop offset="0" stop-color="#bbb" stop-opacity=".1"/>
+    <stop offset="1" stop-opacity=".1"/>
+  </linearGradient>
+  <clipPath id="r">
+    <rect width="56" height="20" rx="3" fill="#fff"/>
+  </clipPath>
+  <g clip-path="url(#r)">
+    <rect width="56" height="20" fill="#e67e22"/>
+    <rect width="56" height="20" fill="url(#s)"/>
+  </g>
+  <g fill="#fff" text-anchor="middle" font-family="Verdana,Geneva,DejaVu Sans,sans-serif" text-rendering="geometricPrecision" font-size="11">
+    <text x="28" y="14">davila7</text>
+  </g>
+</svg>
diff --git a/README.md b/README.md
index b2ef4d0..481a544 100644
--- a/README.md
+++ b/README.md
@@ -145,6 +145,7 @@ All major workflows converge on the same architectural pattern: **Research → P
 | [memory.md](https://code.claude.com/docs/en/memory), constitution.md does not guarantee anything | |
 | any developer should be able to launch Claude, say "run the tests" and it works on the first try — if it doesn't, your CLAUDE.md is missing essential setup/build/test commands | [![Dex](!/tags/dex.svg)](https://x.com/dexhorthy/status/2034713765401551053) |
 | keep codebases clean and finish migrations — partially migrated frameworks confuse models that might pick the wrong pattern | [![Boris](!/tags/boris-cherny.svg)](https://youtu.be/julbw1JuAz0?t=1112) [![Video](!/tags/video.svg)](https://youtu.be/julbw1JuAz0?t=1112) |
+| use [settings.json](best-practice/claude-settings.md) for harness-enforced behavior (attribution, permissions, model) — don't put "NEVER add Co-Authored-By" in CLAUDE.md when `attribution.commit: ""` is deterministic | [![davila7](!/tags/davila7.svg)](https://x.com/dani_avila7/status/2036182734310195550) |
 
 <a id="tips-agents"></a><img src="!/tags/a.svg" height="14"> **Agents (4)**