diff --git a/.opencode/instructions/INSTRUCTIONS.md b/.opencode/instructions/INSTRUCTIONS.md
index 64d9d1d82..ea7fbc88e 100644
--- a/.opencode/instructions/INSTRUCTIONS.md
+++ b/.opencode/instructions/INSTRUCTIONS.md
@@ -301,7 +301,11 @@ interface Repository<T> {
 
 ## OpenCode-Specific Notes
 
-Since OpenCode does not support hooks, the following actions that were automated in Claude Code must be done manually:
+OpenCode supports hooks through its [plugin system](https://opencode.ai/docs/plugins/).
+The ECC plugin automates selected checks when installed and enabled; see
+[Hook Runtime Controls](../README.md#hook-runtime-controls) for hook profiles and disabled hook IDs.
+Formatting and type checking require the `strict` profile. Run the checks below manually
+when the plugin is unavailable, hooks are disabled, or the active profile does not include them.
 
 ### After Writing/Editing Code
 - Run `prettier --write <file>` to format JS/TS files