fix: remove SessionStart onboarding prompt hook

plugins/semantic-anchors/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "semantic-anchors",
   "version": "0.1.0",
-  "description": "Semantic anchor skills for translating terminology, prompting first-run Claude onboarding, and installing persistent anchor context into coding agents.",
+  "description": "Semantic anchor skills for translating terminology and installing persistent anchor context into coding agents.",
   "author": {
     "name": "LLM Coding",
     "url": "https://github.com/LLM-Coding"

skill/semantic-anchor-onboarding/SKILL.md

@@ -34,7 +34,6 @@ Install a small, stable set of semantic anchors so coding agents start each sess
 
 5. Add native behavior only where needed.
 - For Claude Code, add `--claude-hook` if the user wants a SessionStart hook that re-injects the selected block at the beginning of each session.
-- The Claude marketplace plugin can also ship a separate first-start `SessionStart` hook that asks whether onboarding should run when no semantic-anchor block exists yet.
 - For Gemini CLI, either rely on the shared file chosen by the installer or mirror the same block into `GEMINI.md` if the team wants native Gemini memory.
 - For GitHub Copilot, mirror the same block into `.github/copilot-instructions.md` only when chat or review workflows also need it.
 - For Cursor, the shared file is usually enough; use `.cursor/rules` only when path-scoped behavior is required.