Add context token conservation guidance

manifest.json

@@ -5,6 +5,7 @@
   "agentResponsibilities": [
     "Read manifest.json before copying files.",
     "Use copyMap target paths unless the repository already has an equivalent convention.",
+    "Conserve context tokens by searching first, reading only relevant files, summarizing large outputs, and avoiding generated folders, dependency folders, build outputs, or full logs unless directly relevant.",
     "At the start of each user-requested task, check for upstream repository updates and apply them immediately with a safe fast-forward pull when the working tree is clean.",
     "Check git status before editing and before finishing.",
     "Preserve unrelated user changes.",