diff --git a/.claude/skills/world-building/SKILL.md b/.claude/skills/world-building/SKILL.md
index 53aded7..b54e1a2 100644
--- a/.claude/skills/world-building/SKILL.md
+++ b/.claude/skills/world-building/SKILL.md
@@ -112,10 +112,11 @@ default — it's what the five-rung gate system exists to deliver.
 
 ### 4. Build and verify — not done until green
 
-The build regenerates `content/world/` + `content/server/` from the bible and the
-`--check` gate is what CI enforces (`.github/workflows/content-build.yml`). Run,
-from repo root, with the repo venv active (`source .venv/bin/activate`) — the
-`content_build` package lives under `tools/`, so `PYTHONPATH=tools` is required:
+The build regenerates `content/world/` + `content/server/` from the bible, and the
+`--check` gate is what proves it stayed valid. **There is no CI — nothing runs
+these for you.** You are the gate; run them, from repo root, with the repo venv
+active (`source .venv/bin/activate`). The `content_build` package lives under
+`tools/`, so `PYTHONPATH=tools` is required:
 
 ```
 PYTHONPATH=tools python -m content_build          # regenerate world/ + server/ from lore/
@@ -123,6 +124,19 @@ PYTHONPATH=tools python -m content_build --check   # must exit 0: fresh, valid,
 PYTHONPATH=tools python -m pytest tools/content_build/tests -q   # schema + secrecy + cli coverage
 ```
 
+**If the build changed anything under `content/world/`, also run the client
+suite** — `bash client/run_tests.sh` (must be fully green):
+
+```
+bash client/run_tests.sh   # Godot/GUT; content/world/ is a CLIENT INPUT, not just build output
+```
+
+That last one is not optional and not paranoia. `client/scripts/content/content_db.gd`
+loads `content/world/`, and `client/tests/unit/test_content_db.gd` asserts on it — so
+**deleting or renaming generated content is a client change.** A content purge once
+left the client erroring on a vanished directory and turned a secrecy assertion into a
+test that passed while checking nothing. Nothing else will catch that for you.
+
 (If `python` isn't found, the venv isn't active — use `.venv/bin/python`.)
 If any step fails, read the `BUILD FAILED` / `STALE:` message — it names the
 source file and line — fix the bible, rebuild, recheck. Never hand-edit the
diff --git a/.github/workflows/content-build.yml b/.github/workflows/content-build.yml
deleted file mode 100644
index 50d7b90..0000000
--- a/.github/workflows/content-build.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: content-build
-on:
-  push:
-    paths: ["content/**", "tools/content_build/**", ".github/workflows/content-build.yml"]
-  pull_request:
-    paths: ["content/**", "tools/content_build/**"]
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
-        with:
-          python-version: "3.12"
-      - run: pip install -r tools/requirements-dev.txt
-      - name: Unit tests
-        run: PYTHONPATH=tools python -m pytest tools/content_build/tests -q
-      - name: Content freshness + validity
-        run: PYTHONPATH=tools python -m content_build --check
diff --git a/tools/content_build/tests/test_real_content.py b/tools/content_build/tests/test_real_content.py
index a2efe07..3c322b2 100644
--- a/tools/content_build/tests/test_real_content.py
+++ b/tools/content_build/tests/test_real_content.py
@@ -1,6 +1,8 @@
-"""Smoke gate: the real Margreave bible builds clean. Local mirror of the CI
-content-build workflow's `--check` step — asserts freshness/validity only,
-never specific entities (that's what made the old Duncarrow-era test brittle)."""
+"""Smoke gate: the real Margreave bible builds clean.
+
+There is no CI — this test IS the `--check` gate (freshness, validity, no
+orphans, no secrecy leaks). It asserts those properties only, never specific
+entities; pinning entities is what made the old Duncarrow-era test brittle."""
 
 from pathlib import Path