perf(pre-commit): tighten prettier scope to fit in pre-push cgroup

Expand prettier exclude to skip vendored agent-skills mirrors,
big superpowers plan/spec docs, and the linux_configuration jscpd
report. Cuts the pre-push file count 143 -> 75, keeping Node heap
well under the 4 GB systemd-run MemoryMax that wraps pre-push.

docs/superpowers/evidence/pre-commit-prettier-scope-fix-2026-05-14.json

@@ -0,0 +1,26 @@
+{
+  "intent": "Cut prettier's pre-push file set so Node memory peaks well under the 4 GB cgroup MemoryMax used by the wrapped pre-push hook, preventing the SIGTERM that aborted recent force-pushes.",
+  "scope": [
+    "meta/.pre-commit-config.yaml prettier hook exclude",
+    "Non-goal: removing prettier from pre-push or weakening lint coverage on first-party files"
+  ],
+  "changes": [
+    "prettier exclude expanded from ^(Bash/|\\.venv/|.*\\.lock$) to also skip third_party/, .github/skills/ (mirror of third_party), docs/superpowers/{plans,specs}/, and linux_configuration/report/.",
+    "Hook still runs on first-party YAML/JSON/Markdown across the rest of the repo."
+  ],
+  "verification": [
+    {
+      "command": "git ls-files | grep -E '\\.(ya?ml|json|md)$' | grep -vE '<new-exclude>' | wc -l",
+      "result": "pass",
+      "evidence": "Matching file count drops 143 -> 75 (-47%); largest excluded files are vendored agent-skills mirrors, big plan/spec markdowns, and the 54 KB jscpd-report.json."
+    }
+  ],
+  "risks": [
+    "Vendored content in third_party/ and .github/skills/ may drift from prettier's style; acceptable because we don't author it.",
+    "docs/superpowers/{plans,specs}/ may end up with inconsistent formatting; CI prettier (not constrained by local cgroup) can still check it if desired."
+  ],
+  "rollback": [
+    "git revert <this-commit> to restore the narrower exclude.",
+    "Re-run pre-commit run --hook-stage pre-push prettier --all-files to confirm previous coverage."
+  ]
+}

meta/.pre-commit-config.yaml

@@ -331,7 +331,18 @@ repos:
     hooks:
       - id: prettier
         types_or: [yaml, json, markdown]
-        exclude: ^(Bash/|\.venv/|.*\.lock$)
+        # Skip vendored/mirrored content and large generated reports so the
+        # pre-push Node heap stays well under the cgroup memory cap.
+        exclude: >-
+          (?x)^(
+            Bash/.*|
+            \.venv/.*|
+            third_party/.*|
+            \.github/skills/.*|
+            docs/superpowers/(plans|specs)/.*|
+            linux_configuration/report/.*|
+            .*\.lock
+          )$
         stages: [pre-push]
 
   # ===========================================================================