feat(mcp): add answeroverflow MCP for Discord community Q&A search

[RhysSullivan]

👋 Hey just recently started using oh-my-opencode & thought it'd be useful to add https://answeroverflow.com/mcp as a default MCP

It indexes content from developer Discord servers, similar vein to context7 but allows for the agent to get up to date information about problems people are running into. I develop with it a lot locally and find it useful - fair disclosure I develop Answer Overflow so feel free to reject this one if it seems self promotey / doesn't seem helpful but I think it's good for the agents

Tested locally by building oh-my-opencode & using it as a plugin, let me know if there's any MCP tweaks requested also

======= AI Generated Summary Below =======

Summary

• Add answeroverflow.com MCP integration for searching indexed Discord community discussions
• Provides access to real developer Q&A from Discord servers

Tools Provided

Tool	Description
answeroverflow_search_answeroverflow	Search across all indexed Discord communities
answeroverflow_search_servers	Discover indexed Discord servers
answeroverflow_get_thread_messages	Get full thread context
answeroverflow_find_similar_threads	Find related discussions

Changes

• src/mcp/answeroverflow.ts - New MCP config pointing to https://answeroverflow.com/mcp
• src/mcp/types.ts - Added answeroverflow to McpNameSchema
• src/mcp/index.ts - Import and register in allBuiltinMcps
• src/cli/doctor/checks/mcp.ts - Added to BUILTIN_MCP_SERVERS
• src/cli/doctor/checks/mcp.test.ts - Updated test assertions (3→4 servers)
• assets/oh-my-opencode.schema.json - Regenerated

Testing

• bun run typecheck passes
• bun run build succeeds
• MCP tests pass (8/8)
• Verified all 4 tools work via direct invocation

Usage

Disable via config if needed:

{
  "disabled_mcps": ["answeroverflow"]
}

---

Summary by cubic

Adds the Answer Overflow MCP to search indexed Discord community Q&A directly from the app. It’s enabled by default and expands builtin MCP coverage.

• New Features
  • New remote MCP at https://answeroverflow.com/mcp with four tools: search discussions, discover servers, get thread messages, find similar threads.
  • Registered as a builtin; doctor check and tests updated to expect 4 builtin servers.
  • Updated schema and types to include "answeroverflow". Disable via config: disabled_mcps: ["answeroverflow"].

^{Written for commit 09872fc. Summary will update on new commits.}

[github-actions]

All contributors have signed the CLA. Thank you! ✅
_{Posted by the CLA Assistant Lite bot.}

[RhysSullivan]

I have read the CLA Document and I hereby sign the CLA

[greptile-apps]

Greptile Summary

Adds Answer Overflow MCP as the fourth builtin MCP server, enabling Discord community Q&A search.

• New MCP Integration: Registers answeroverflow remote MCP at https://answeroverflow.com/mcp following the exact pattern of existing MCPs (context7, websearch_exa, grep_app)
• Complete Integration: Updates all required touchpoints:
  • Type system (McpNameSchema enum)
  • MCP registry (allBuiltinMcps)
  • Doctor health checks (BUILTIN_MCP_SERVERS)
  • Test assertions (3→4 servers)
  • JSON schema generation
• Consistency: Implementation is identical to other builtin MCPs - simple remote config with URL and enabled flag
• No Breaking Changes: Purely additive; users can disable via disabled_mcps: ["answeroverflow"] config

Confidence Score: 5/5

• Safe to merge - straightforward additive change following established patterns with no risks
• Perfect implementation: follows exact MCP registration pattern used by 3 existing MCPs, updates all necessary files (types, index, doctor checks, tests, schema), no logic changes to existing code, purely additive feature that can be disabled by users
• No files require special attention

Important Files Changed

Filename	Overview
src/mcp/answeroverflow.ts	New MCP config following established pattern - remote server at https://answeroverflow.com/mcp, enabled by default
src/mcp/types.ts	Added answeroverflow to McpNameSchema enum - type-safe MCP name registration
src/mcp/index.ts	Imported and registered answeroverflow in allBuiltinMcps - proper integration
src/cli/doctor/checks/mcp.ts	Added answeroverflow to BUILTIN_MCP_SERVERS constant for health checks
src/cli/doctor/checks/mcp.test.ts	Updated test assertions from 3→4 servers, added answeroverflow assertions

Sequence Diagram

sequenceDiagram
    participant User
    participant Config as Config Manager
    participant Index as mcp/index.ts
    participant AO as answeroverflow.ts
    participant Doctor as doctor/checks/mcp.ts
    participant OpenCode as OpenCode Runtime

    User->>Config: Load oh-my-opencode config
    Config->>Index: createBuiltinMcps(disabledMcps)
    Index->>Index: Check if 'answeroverflow' in disabledMcps
    alt answeroverflow enabled
        Index->>AO: Import answeroverflow config
        AO-->>Index: {type: "remote", url: "https://answeroverflow.com/mcp", enabled: true}
        Index-->>Config: Return MCP configs including answeroverflow
        Config->>OpenCode: Register answeroverflow MCP
        OpenCode->>OpenCode: Connect to https://answeroverflow.com/mcp
        OpenCode-->>User: 4 tools available: search, search_servers, get_thread_messages, find_similar_threads
    else answeroverflow disabled
        Index-->>Config: Return MCP configs without answeroverflow
    end
    
    User->>Doctor: Run 'bun doctor'
    Doctor->>Doctor: Check BUILTIN_MCP_SERVERS includes 'answeroverflow'
    Doctor-->>User: Report 4 builtin MCPs enabled

Loading

[greptile-apps]

Greptile found no issues!

From now on, if a review finishes and we haven't found any issues, we will not post anything, but you can confirm that we reviewed your changes in the status check section.

_{This feature can be toggled off in your Code Review Settings by deselecting "Create a status check for each PR".}

[cubic-dev-ai]

No issues found across 6 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.