feat: add OpenCode support (#2)

.opencode/AGENTS.md

@@ -0,0 +1,77 @@
+# OpenCode Configuration
+
+This project uses [dotnet-claude-kit](https://github.com/codewithmukesh/dotnet-claude-kit) for .NET development intelligence.
+
+OpenCode reads the root `AGENTS.md` natively. This file is loaded via the `instructions` array in `opencode.json` and surfaces the kit's agents, skills, MCP tools, and rules so OpenCode can route work the same way Claude Code does.
+
+## MCP Server
+
+The `cwm-roslyn-navigator` MCP server is registered in `opencode.json` under the `mcp` key. It provides Roslyn-powered, read-only code intelligence:
+
+| Tool | Purpose |
+|------|---------|
+| `find_symbol` | Locate where a type, method, or property is defined |
+| `find_references` | Find all usages of a symbol across the solution |
+| `find_implementations` | Find types implementing an interface or deriving from a base class |
+| `find_callers` | Find all methods calling a specific method |
+| `find_overrides` | Find overrides of virtual/abstract methods |
+| `find_dead_code` | Identify unused types, methods, and properties |
+| `get_symbol_detail` | Get full signature, parameters, return type, XML docs |
+| `get_public_api` | Get public members of a type without reading the file |
+| `get_type_hierarchy` | Get inheritance chain, interfaces, and derived types |
+| `get_project_graph` | Get solution dependency tree with frameworks and references |
+| `get_dependency_graph` | Get recursive call graph for a method |
+| `get_diagnostics` | Get compiler and analyzer diagnostics (errors, warnings) |
+| `get_test_coverage_map` | Heuristic test coverage by naming convention |
+| `detect_antipatterns` | Find .NET anti-patterns via Roslyn analysis |
+| `detect_circular_dependencies` | Find cycles in project or type dependencies |
+
+Always prefer MCP tools over reading full source files to conserve context window.
+
+> Install the server first so the `cwm-roslyn-navigator` command resolves on PATH — see the [main README](https://github.com/codewithmukesh/dotnet-claude-kit#installation).
+
+## Specialist Agents
+
+Each agent below maps to a focused area of .NET work. The full agent definition (role, skills, boundaries) lives in `agents/<name>.md` and can be loaded directly or adapted into an OpenCode subagent under `.opencode/agents/`.
+
+| Agent | File | When to Use |
+|-------|------|-------------|
+| dotnet-architect | `agents/dotnet-architect.md` | Architecture decisions, project structure, module boundaries, feature scaffolding |
+| api-designer | `agents/api-designer.md` | Minimal API design, OpenAPI specs, versioning, rate limiting, CORS |
+| ef-core-specialist | `agents/ef-core-specialist.md` | Database design, EF Core queries, migrations, DbContext configuration |
+| test-engineer | `agents/test-engineer.md` | Test strategy, xUnit v3, WebApplicationFactory, Testcontainers |
+| security-auditor | `agents/security-auditor.md` | Auth systems, OWASP compliance, secrets management, vulnerability review |
+| performance-analyst | `agents/performance-analyst.md` | Profiling, benchmarks, caching strategy, async pattern optimization |
+| devops-engineer | `agents/devops-engineer.md` | Docker, CI/CD pipelines, .NET Aspire orchestration, deployment |
+| code-reviewer | `agents/code-reviewer.md` | Multi-dimensional code review, PR review, quality gatekeeper |
+| build-error-resolver | `agents/build-error-resolver.md` | Autonomous build error fixing, iterative compilation repair |
+| refactor-cleaner | `agents/refactor-cleaner.md` | Dead code removal, systematic cleanup, safe refactoring |
+
+## Skills
+
+Skills live in `skills/<skill-name>/SKILL.md` and follow the Agent Skills open standard. Reference them by path when you need the opinionated pattern for a topic.
+
+### .NET Domain Skills
+api-versioning, architecture-advisor, aspire, authentication, caching, ci-cd, clean-architecture, configuration, container-publish, ddd, dependency-injection, docker, ef-core, error-handling, httpclient-factory, logging, messaging, minimal-api, modern-csharp, openapi, opentelemetry, project-setup, project-structure, resilience, scalar, serilog, testing, vertical-slice
+
+### Workflow Skills (each carries its methodology inline)
+build-fix, checkpoint, code-review, de-sloppify, dotnet-init, health-check, migrate, plan, scaffold, security-scan, spec, tdd, verify, wrap-up
+
+### Workflow & Learning Skills
+convention-learner, workflow-mastery, instinct-system
+
+> Workflow skills map naturally onto OpenCode [custom commands](https://opencode.ai/docs/commands/) (`.opencode/commands/<name>.md`). Create thin command wrappers that point at the matching skill's methodology when you want `/verify`, `/scaffold`, `/tdd`, etc.
+
+## Rules
+
+Always-applied coding conventions are consolidated for OpenCode in `.cursor/rules/dotnet-rules.md` (loaded via `opencode.json`). The canonical per-topic source lives in `.claude/rules/`:
+
+- `coding-style.md` — C# 14 style, naming, file organization
+- `architecture.md` — Dependency direction, feature folders, data access
+- `security.md` — Secrets, input validation, auth, transport security
+- `testing.md` — Integration-first, xUnit v3, Testcontainers, AAA
+- `performance.md` — CancellationToken, TimeProvider, caching, async
+- `error-handling.md` — Result pattern, ProblemDetails, exception boundaries
+- `git-workflow.md` — Conventional commits, atomic commits, branch safety
+- `agents.md` — MCP-first tools, subagent routing, skill loading
+- `hooks.md` — Format hooks, pre-commit, post-test analysis

README.md

@@ -390,6 +390,8 @@ dotnet-claude-kit/
 ├── .claude-plugin/              # Plugin marketplace manifests
 ├── .cursor/rules/               # Cursor IDE compatibility
 ├── .codex/                      # Codex CLI compatibility
+├── opencode.json                # OpenCode config (MCP + rules)
+├── .opencode/                   # OpenCode compatibility
 └── .github/workflows/           # CI validation
 ```
 
@@ -402,6 +404,7 @@ dotnet-claude-kit works with multiple AI coding tools:
 | **Claude Code** | `.claude-plugin/plugin.json` | Full integration: skills, agents, commands, rules, hooks, MCP |
 | **Cursor** | `.cursor/rules/dotnet-rules.md` | Consolidated .NET rules for Cursor IDE |
 | **Codex CLI** | `.codex/AGENTS.md` | Agent configuration pointing to skills and agents |
+| **OpenCode** | `opencode.json` + `.opencode/AGENTS.md` | Roslyn MCP server, consolidated rules, and agent/skill catalog |
 
 ## Documentation
 

opencode.json

@@ -0,0 +1,14 @@
+{
+  "$schema": "https://opencode.ai/config.json",
+  "instructions": [
+    ".opencode/AGENTS.md",
+    ".cursor/rules/dotnet-rules.md"
+  ],
+  "mcp": {
+    "cwm-roslyn-navigator": {
+      "type": "local",
+      "command": ["cwm-roslyn-navigator"],
+      "enabled": true
+    }
+  }
+}