feat: [AI-6948] register mcps slash command in server command list

[altimate-harness-bot]

Summary

• Register /mcps in altimate-code's server command list (command/index.ts) so it appears in the slash autocomplete in the Altimate Code Chat webview
• The command description: "list added MCP servers and their connection status"
• The webview intercepts /mcps client-side (see companion PR) — this server-side registration ensures autocomplete works and provides a fallback template if ever routed through the LLM

Changes

• packages/opencode/src/command/index.ts — add MCPS: "mcps" to Default constants; register mcps command entry with description and minimal template

Test plan

• GET /command returns mcps in the command list
• tsc --noEmit exits 0 in packages/opencode

Companion PR in vscode-altimate-mcp-server: AltimateAI/vscode-altimate-mcp-server#356

Requested by @saravmajestic via harness

Jira: AI-6948

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Summary by cubic

Registers /mcps in altimate-code server commands so it shows in slash autocomplete and has a server-side fallback template. Addresses AI-6948 by letting users list configured MCP servers and their connection status from chat.

• New Features
  • Added MCPS: "mcps" to Command.Default and registered /mcps with description and minimal template in packages/opencode/src/command/index.ts.
  • Keeps webview interception working, while providing a safe server fallback if /mcps is routed through the LLM.

^{Written for commit 728bc56. Summary will update on new commits.}

[github-actions]

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[dev-punia-altimate]

Multi-Persona Review — Verdict: request-changes

The PR registers the /mcps slash command correctly but fails to implement the core user-facing functionality described in AI-6948. Without server-side data retrieval, the command is non-functional as a feature. Additionally, code style and test coverage gaps must be addressed before approval.

14/14 agents completed · 126s · 4 findings (0 critical, 1 high, 2 medium)

High

• [product-manager] Ticket AI-6948 asks for the /mcps command to enable users to list added MCP servers and their connection status, but this PR only registers the command with a template and description — it does not implement the underlying logic to fetch or display server status. The webview interception is handled in a companion PR, but without server-side data retrieval, the command is non-functional as a user-facing feature.
  • 💡 Either implement server-side logic to return MCP server status in a follow-up ticket, or clearly document in the ticket that this is a placeholder registration and the full functionality is deferred.

Medium

• [code-reviewer, tech-lead, end-user] Template string uses double quotes instead of backticks, which may cause issues if the string contains embedded expressions or line breaks; inconsistent with codebase style where template literals are preferred for multi-line or dynamic content. → packages/opencode/src/command/index.ts:150
  • 💡 Change "List all configured MCP servers and their current connection status." to List all configured MCP servers and their current connection status.
• [devops, end-user, pr-hygiene] New command registration lacks automated test coverage; while the PR includes a test plan, no tests are implemented, risking undetected regressions in command availability or template rendering.
  • 💡 Add a unit test in packages/opencode/src/command/__tests__/index.test.ts that verifies /mcps is present in the registered commands and its template/description match expected values.

Low

• [cto] Adding a server-side fallback template for a webview-intercepted command is a valid pattern, but this PR does not yet standardize it across other similar commands. The QA intelligence suggests this should become a standard pattern, but no follow-up work is tracked.
  • 💡 Create a follow-up task to audit and standardize server-side fallback templates for all webview-intercepted commands (e.g., /discover-mcps, /configure-claude) to ensure consistency and reduce future tech debt.

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_{Multi-Persona Review · vllm:qwen3-next-80b (waves) + vllm-fallback (synth) ·}

[dev-punia-altimate]

[MEDIUM · code-reviewer, tech-lead, end-user] Template string uses double quotes instead of backticks, which may cause issues if the string contains embedded expressions or line breaks; inconsistent with codebase style where template literals are preferred for multi-line or dynamic content.

💡 Suggestion: Change "List all configured MCP servers and their current connection status." to List all configured MCP servers and their current connection status.

_{Confidence: 95/100}