v2.12.0

New /thinking (alias /effort) reasoning-effort control — auto · low · medium · high · max, shown beside the model in the status bar and clamped per provider+model so it never sends a value the API rejects. Plus a Codeep agent identity and iOS-testing MCP servers.

Added

• /thinking (alias /effort) — thinking / reasoning-effort tiers. A single
  control with five tiers (auto · low · medium · high · max) for how hard the
  model reasons. auto (default) sends nothing — each model's own default. The
  other tiers are clamped to the nearest level the active provider+model
  actually accepts, so an unsupported value is never sent: Anthropic Opus/Sonnet
  → output_config.effort, OpenAI GPT‑5.x → reasoning_effort (Max→xhigh),
  Google Gemini 3 → low/high, DeepSeek V4 & Z.AI GLM‑5.2 → high/max,
  OpenRouter → unified reasoning.effort. The active tier shows next to the
  model in the status bar; models without a graded knob (Haiku, GLM‑Turbo,
  Ollama, custom) hide it.
• About‑Codeep persona. The agent system prompt now states what Codeep is and
  points you at the right slash‑command, backed by a curated command index.
• MCP marketplace: iOS‑testing servers. Added iOS Simulator and Mobile
  (iOS + Android) servers for device/UI automation.

Changed

• MCP browser server is now Playwright (supersedes Puppeteer) — the de‑facto
  browser‑automation MCP.