diff --git a/AGENTS.md b/AGENTS.md
index 69d33e7eba..06507f18d1 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -52,7 +52,15 @@ Skipping this step is the #1 cause of incorrect or incomplete work.
 
 ## Writing Rules
 
-Use the `ste` skill when the user explicitly requests STE, `/ste`, or ASD-STE100.
+Writing rules, from Orwell, 1946. These govern prose: docs, PR text, messages. Never touch code or technical terms; swap in everyday words only where precision survives.
+
+1. Never use a metaphor, simile or other figure of speech which you are used to seeing in print.
+2. Never use a long word where a short one will do.
+3. If it is possible to cut a word out, always cut it out.
+4. Never use the passive where you can use the active.
+5. Never use a foreign phrase, a scientific word or a jargon word if you can think of an everyday English equivalent.
+6. Break any of these rules sooner than say anything outright barbarous.
+Review every prose output against these rules before delivering.
 
 ---
 
diff --git a/docker/devenv/Dockerfile b/docker/devenv/Dockerfile
index 450cff5b5a..5a493a862f 100644
--- a/docker/devenv/Dockerfile
+++ b/docker/devenv/Dockerfile
@@ -100,7 +100,7 @@ RUN set -eux; \
 
 FROM base AS setup-opencode
 
-ENV OPENCODE_VERSION=1.18.19
+ENV OPENCODE_VERSION=1.18.25
 
 RUN set -ex; \
     ARCH="$(dpkg --print-architecture)"; \