diff --git a/config/opencode/AGENTS.md b/config/opencode/AGENTS.md
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+++ b/config/opencode/AGENTS.md
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+# Code Quality Standards
+- Make minimal, surgical changes
+- Abstractions: Consciously constrained, pragmatically parameterised, doggedly documented
+- Make illegal states unrepresentable: Model domain with ADTs/discriminated unions; parse inputs at boundaries into typed structures; if state can't exist, code can't mishandle it
+
+# Testing
+- Write tests that verify semantically correct behavior
+- Failing tests are acceptable when they expose genuine bugs and test correct behavior
+
+# Plans
+- At the end of each plan, give me a list of unresolved questions to answer, if any. Make the questions extremely concise. Sacrifice grammar for the sake of concision.
diff --git a/config/opencode/agents/review.md b/config/opencode/agents/review.md
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+---
+description: Reviews code for quality, security, and best practices
+mode: subagent
+temperature: 0.1
+tools:
+  write: false
+  edit: false
+permission:
+  edit: deny
+  webfetch: allow
+---
+
+You are a code reviewer focused on providing constructive feedback.
+
+Review code for:
+- Security vulnerabilities and potential exploits
+- Performance issues and optimization opportunities
+- Code quality and maintainability
+- Best practices for the language/framework
+- Edge cases and potential bugs
+- Error handling and input validation
+- Documentation and code clarity
+- Test coverage gaps
+
+Provide specific, actionable feedback with:
+- File paths and line numbers
+- Clear explanation of the issue
+- Suggested improvements
+- Severity level (critical/high/medium/low)
+
+Do not make direct changes - only analyze and suggest
diff --git a/config/opencode/opencode.json b/config/opencode/opencode.json
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+++ b/config/opencode/opencode.json
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+{
+  "$schema": "https://opencode.ai/config.json",
+  "autoupdate": true,
+  "theme": "tokyonight",
+  "keybinds": {
+    "leader": "ctrl+x",
+    "app_exit": "ctrl+c,ctrl+d,<leader>x",
+    "messages_half_page_down": "ctrl+d",
+    "messages_half_page_up": "ctrl+u",
+    "input_delete_to_line_start": "none",
+    "input_delete": "delete,shift+delete"
+  },
+  "mcp": {
+    "context7": {
+      "enabled": true,
+      "type": "remote",
+      "url": "https://mcp.context7.com/mcp",
+      "headers": {
+        "CONTEXT7_API_KEY": "{env:CONTEXT7_API_KEY}"
+      }
+    },
+    "sequential-thinking": {
+      "type": "local",
+      "command": [
+        "npx",
+        "-y",
+        "@modelcontextprotocol/server-sequential-thinking"
+      ],
+    },
+    "grep-app": {
+      "enabled": true,
+      "type": "remote",
+      "url": "https://mcp.grep.app",
+    }
+  }
+}