Removes Ably MCP and positions Ably CLI as Public Preview

[umair-ably]

Removes Ably MCP and positions Ably CLI as Public Preview

supersedes #137

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Note

Low Risk
Mostly deletions of an experimental feature plus documentation/config cleanup; limited risk to core CLI behavior beyond potential help/command filtering edge cases.

Overview
Removes the experimental Model Context Protocol (MCP) server feature entirely: deletes the ably mcp command group, the MCP server implementation under src/mcp/, related type shims, and all MCP-focused unit tests.

Updates docs and project rules to position this as Ably CLI (not “CLI and MCP server”), adds a Public Preview note in README.md, and cleans up references to removed docs (docs/Product-Requirements.md, docs/TODO.md) and MCP in contribution/workflow guidance.

Cleans up tooling/config by dropping the @modelcontextprotocol/sdk dependency, removing MCP-specific ESLint/coverage exclusions, and adjusting web/interactive-mode command restriction logic/tests now that mcp* is no longer a special case.

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Summary by CodeRabbit

Release Notes

• Removed Features

  • Removed Model Context Protocol (MCP) server functionality and all associated commands.

• Documentation

  • Updated CLI branding to focus on "Ably CLI."
  • Added Public Preview status indicator to CLI documentation.
  • Streamlined documentation to reflect current CLI capabilities.

• Chores

  • Removed MCP-related dependencies.

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Project	Deployment	Actions	Updated (UTC)
cli-web-cli	Ready	Preview, Comment	Feb 25, 2026 0:47am

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Walkthrough

This PR removes all Model Context Protocol (MCP) server functionality from the codebase, including the MCP command implementation, server logic, type definitions, dependencies, and associated tests and documentation references.

Changes

Cohort / File(s)	Summary
Configuration & Build .nycrc.json, eslint.config.js, package.json	Removed MCP-specific coverage exclusions, ESLint rule overrides, and the @modelcontextprotocol/sdk dependency.
Documentation README.md, docs/Product-Requirements.md, docs/Project-Structure.md, docs/TODO.md	Removed all MCP-related sections, usage examples, server descriptions, and TODO items; updated CLI branding and table of contents.
MCP Command Layer src/commands/mcp/index.ts, src/commands/mcp/start-server.ts	Deleted MCP command topic class and start-server command implementation.
MCP Server Implementation src/mcp/index.ts, src/mcp/mcp-server.ts	Removed MCP server class (1291 lines) including Ably integration, resource/tool provisioning, and command execution logic.
Type Definitions src/types/modelcontextprotocol.d.ts	Deleted ambient module declarations for MCP SDK types and factory functions.
Core CLI Configuration src/base-command.ts, src/help.ts	Removed MCP from restricted/unsuitable command lists and cleaned up MCP-specific error handling branches.
Unit & Integration Tests test/unit/commands/mcp/mcp.test.ts, test/unit/base/base-command-enhanced.test.ts, test/unit/base/base-command.test.ts, test/integration/interactive-mode.test.ts, test/unit/commands/interactive-autocomplete.test.ts, test/unit/help/interactive-help.test.ts, test/unit/help/web-cli-help.test.ts	Removed MCP test cases, command restrictions assertions, and test data references.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

🐰 Farewell, dear MCP, once shiny and bright,
We've swept out your files and removed you from sight,
The server's now gone, the commands have fled,
Our CLI springs lighter, with fewer threads spread,
Now hopping forward with cleaner code instead! 🌿✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely summarizes the main changes: removal of MCP functionality and positioning CLI as Public Preview.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ Finishing Touches

• 📝 Generate docstrings (stacked PR)
• 📝 Generate docstrings (commit on current branch)

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch removeMCP

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