diff --git a/pstack/skills/how/SKILL.md b/pstack/skills/how/SKILL.md
index c156b76ae..f53eb7b0f 100644
--- a/pstack/skills/how/SKILL.md
+++ b/pstack/skills/how/SKILL.md
@@ -1,6 +1,7 @@
 ---
 name: how
 description: "Use for \"how does X work\", code walkthroughs before changing something, and placement / ownership / layering questions (\"where should this live\", \"which package owns this\", \"is this the right layer\"). Explains subsystem architecture, runtime flow, onboarding mental models. Can critique architecture. Use why for motivation."
+disable-model-invocation: true
 ---
 
 # How
diff --git a/pstack/skills/make-bot-ui/SKILL.md b/pstack/skills/make-bot-ui/SKILL.md
index 9ae55ae39..285df7569 100644
--- a/pstack/skills/make-bot-ui/SKILL.md
+++ b/pstack/skills/make-bot-ui/SKILL.md
@@ -4,6 +4,7 @@ description: >-
   Use when building a custom UI (page, dashboard, buttons) that should wake a
   Grok Bot over a webhook, when the user must provide a webhook sender key, or
   when exposing that UI on Tailscale.
+disable-model-invocation: true
 ---
 # How to make a bot UI
 
diff --git a/pstack/skills/typescript-best-practices/SKILL.md b/pstack/skills/typescript-best-practices/SKILL.md
index 9c4e3cb62..951ff4c98 100644
--- a/pstack/skills/typescript-best-practices/SKILL.md
+++ b/pstack/skills/typescript-best-practices/SKILL.md
@@ -1,6 +1,7 @@
 ---
 name: typescript-best-practices
 description: TypeScript best practices. Use when reading or editing any .ts or .tsx file.
+disable-model-invocation: true
 ---
 
 # TypeScript best practices
diff --git a/pstack/skills/unslop/SKILL.md b/pstack/skills/unslop/SKILL.md
index 2a93c06bb..ccb0c5563 100644
--- a/pstack/skills/unslop/SKILL.md
+++ b/pstack/skills/unslop/SKILL.md
@@ -1,6 +1,7 @@
 ---
 name: unslop
 description: Cut AI tells from any writing. Must always apply.
+disable-model-invocation: true
 ---
 
 # Unslop
diff --git a/pstack/skills/why/SKILL.md b/pstack/skills/why/SKILL.md
index c34bc86b6..3a78732be 100644
--- a/pstack/skills/why/SKILL.md
+++ b/pstack/skills/why/SKILL.md
@@ -1,6 +1,7 @@
 ---
 name: why
 description: "Use for 'why does X work this way', 'why we picked Y', design rationale, regressions, postmortems, or data-backed thresholds. Discovers available MCPs and queries each evidence category (source control, issue tracker, long-form docs, real-time chat, infrastructure observability, error tracking, product analytics warehouse) in parallel, then returns a cited read on decisions and tradeoffs. Use how for runtime behavior."
+disable-model-invocation: true
 ---
 
 # Why