Update memory docs with Code Review agent

Author: chriswritescode-dev

docs/features/memory.md

@@ -384,7 +384,7 @@ The plugin injects active planning state into compaction context so task progres
 
 ## Agents
 
-The plugin registers three agents that are configured into OpenCode:
+The plugin registers four agents that are configured into OpenCode:
 
 ### Code Agent (primary)
 
@@ -445,6 +445,19 @@ When `memory-plan-execute` runs, it automatically appends a planning instruction
 
 The Architect agent does not have direct access to `memory-planning-update` or `memory-planning-search`. It delegates broad memory research to the @Memory subagent and reads its own session's planning state via `memory-planning-get`.
 
+### Code Review Agent (subagent)
+
+- **Display name:** `Code Review`
+- **Mode:** `subagent`
+- **Temperature:** 0.0 (deterministic)
+- **Role:** Convention-aware code reviewer with memory access
+
+The Code Review agent is a read-only subagent invoked by other agents via the Task tool to review diffs, commits, branches, or PRs. It checks changes against stored project conventions and decisions, then returns a structured review summary with issues (bug/warning/suggestion) and observations.
+
+The agent can read memory (`memory-read`) and planning state (`memory-planning-get`, `memory-planning-search`, `memory-planning-update`) but cannot write, edit, or delete memories. It also cannot execute plans — `memory-plan-execute`, `memory-write`, `memory-edit`, and `memory-delete` are excluded.
+
+The `/review` slash command triggers this agent as a subtask with the template: "Review the current code changes."
+
 ### Built-in Agent Enhancements
 
 The plugin also modifies built-in OpenCode agents: