feat(cli): add model fallback system with provider priority
Implements intelligent model selection based on available providers. Priority order: Native > Copilot > OpenCode Zen > Z.ai > Ultimate Fallback. - Add model-fallback.ts with MODEL_CATALOG and capability-based resolution - Extend InstallConfig with hasOpencodeZen and hasZaiCodingPlan - Add TUI prompts and CLI args for new provider options - Z.ai gets Librarian priority (zai-coding-plan/glm-4.7) 🤖 Generated with assistance of [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)
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justsisyphus
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@@ -33,7 +33,7 @@ follow these steps:
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### Step 0: Ask user about subscriptions
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Ask the user these 3 questions to determine CLI options:
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Ask the user these questions to determine CLI options:
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1. **Do you have a Claude Pro/Max Subscription?**
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- If **yes**: **Are you on max20 (20x mode)?**
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@@ -41,18 +41,24 @@ Ask the user these 3 questions to determine CLI options:
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- **not max20** → `--claude=yes`
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- If **no** → `--claude=no`
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2. **Do you have a ChatGPT Subscription?**
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- If **yes** → `--chatgpt=yes`
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- If **no** → `--chatgpt=no`
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3. **Will you integrate Gemini models?**
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2. **Will you integrate Gemini models?**
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- If **yes** → `--gemini=yes`
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- If **no** → `--gemini=no`
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4. **Do you have a GitHub Copilot Subscription?**
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3. **Do you have a GitHub Copilot Subscription?**
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- If **yes** → `--copilot=yes`
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- If **no** → `--copilot=no`
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4. **Do you have access to OpenCode Zen (opencode/ models)?**
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- If **yes** → `--opencode-zen=yes`
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- If **no** → `--opencode-zen=no` (default)
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5. **Do you have a Z.ai Coding Plan subscription?**
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- If **yes** → `--zai-coding-plan=yes`
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- If **no** → `--zai-coding-plan=no` (default)
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**Provider Priority**: Native (anthropic/, openai/, google/) > GitHub Copilot > OpenCode Zen > Z.ai Coding Plan
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MUST STRONGLY WARNING, WHEN USER SAID THEY DON'T HAVE CLAUDE SUBSCRIPTION, SISYPHUS AGENT MIGHT NOT WORK IDEALY.
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### Step 1: Install OpenCode (if not installed)
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@@ -74,14 +80,16 @@ Spawn a subagent to handle installation and report back - to save context.
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Based on user's answers, run the CLI installer with appropriate flags:
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```bash
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bunx oh-my-opencode install --no-tui --claude=<yes|no|max20> --chatgpt=<yes|no> --gemini=<yes|no> --copilot=<yes|no>
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bunx oh-my-opencode install --no-tui --claude=<yes|no|max20> --gemini=<yes|no> --copilot=<yes|no> [--opencode-zen=<yes|no>] [--zai-coding-plan=<yes|no>]
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```
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**Examples:**
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- User has all subscriptions with max20: `bunx oh-my-opencode install --no-tui --claude=max20 --chatgpt=yes --gemini=yes --copilot=no`
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- User has only Claude (no max20): `bunx oh-my-opencode install --no-tui --claude=yes --chatgpt=no --gemini=no --copilot=no`
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- User has only GitHub Copilot: `bunx oh-my-opencode install --no-tui --claude=no --chatgpt=no --gemini=no --copilot=yes`
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- User has no subscriptions: `bunx oh-my-opencode install --no-tui --claude=no --chatgpt=no --gemini=no`
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- User has all native subscriptions: `bunx oh-my-opencode install --no-tui --claude=max20 --gemini=yes --copilot=no`
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- User has only Claude: `bunx oh-my-opencode install --no-tui --claude=yes --gemini=no --copilot=no`
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- User has only GitHub Copilot: `bunx oh-my-opencode install --no-tui --claude=no --gemini=no --copilot=yes`
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- User has Z.ai for Librarian: `bunx oh-my-opencode install --no-tui --claude=yes --gemini=no --copilot=no --zai-coding-plan=yes`
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- User has only OpenCode Zen: `bunx oh-my-opencode install --no-tui --claude=no --gemini=no --copilot=no --opencode-zen=yes`
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- User has no subscriptions: `bunx oh-my-opencode install --no-tui --claude=no --gemini=no --copilot=no`
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The CLI will:
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- Register the plugin in `opencode.json`
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@@ -158,23 +166,49 @@ opencode auth login
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#### GitHub Copilot (Fallback Provider)
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GitHub Copilot is supported as a **fallback provider** when native providers (Claude, ChatGPT, Gemini) are unavailable. The installer configures Copilot with lower priority than native providers.
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GitHub Copilot is supported as a **fallback provider** when native providers are unavailable.
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**Priority**: Native providers (Claude/ChatGPT/Gemini) > GitHub Copilot > Free models
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**Priority**: Native (anthropic/, openai/, google/) > GitHub Copilot > OpenCode Zen > Z.ai Coding Plan
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##### Model Mappings
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When GitHub Copilot is enabled, oh-my-opencode uses these model assignments:
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When GitHub Copilot is the best available provider, oh-my-opencode uses these model assignments:
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| Agent | Model |
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| ------------- | -------------------------------- |
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| **Sisyphus** | `github-copilot/claude-opus-4.5` |
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| **Oracle** | `github-copilot/gpt-5.2` |
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| **Explore** | `grok code` (default) |
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| **Librarian** | `glm 4.7 free` (default) |
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| **Explore** | `github-copilot/grok-code-fast-1`|
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| **Librarian** | `zai-coding-plan/glm-4.7` (if Z.ai available) or fallback |
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GitHub Copilot acts as a proxy provider, routing requests to underlying models based on your subscription.
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#### Z.ai Coding Plan
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Z.ai Coding Plan provides access to GLM-4.7 models. When enabled, the **Librarian agent always uses `zai-coding-plan/glm-4.7`** regardless of other available providers.
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If Z.ai is the only provider available, all agents will use GLM models:
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| Agent | Model |
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| ------------- | -------------------------------- |
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| **Sisyphus** | `zai-coding-plan/glm-4.7` |
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| **Oracle** | `zai-coding-plan/glm-4.7` |
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| **Explore** | `zai-coding-plan/glm-4.7-flash` |
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| **Librarian** | `zai-coding-plan/glm-4.7` |
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#### OpenCode Zen
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OpenCode Zen provides access to `opencode/` prefixed models including `opencode/claude-opus-4-5`, `opencode/gpt-5.2`, `opencode/grok-code`, and `opencode/glm-4.7-free`.
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When OpenCode Zen is the best available provider (no native or Copilot), these models are used:
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| Agent | Model |
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| ------------- | -------------------------------- |
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| **Sisyphus** | `opencode/claude-opus-4-5` |
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| **Oracle** | `opencode/gpt-5.2` |
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| **Explore** | `opencode/grok-code` |
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| **Librarian** | `opencode/glm-4.7-free` |
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##### Setup
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Run the installer and select "Yes" for GitHub Copilot:
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