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SKILL.md

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+---
+name: freeride
+description: "为OpenClaw管理来自OpenRouter的免费AI模型。"
+---
+
+# FreeRide - Free AI for OpenClaw
+
+## What This Skill Does
+
+Configures OpenClaw to use **free** AI models from OpenRouter. Sets the best free model as primary, adds ranked fallbacks so rate limits don't interrupt the user, and preserves existing config.
+
+## Prerequisites
+
+Before running any FreeRide command, ensure:
+
+1. **OPENROUTER_API_KEY is set.** Check with `echo $OPENROUTER_API_KEY`. If empty, the user must get a free key at https://openrouter.ai/keys and set it:
+   ```bash
+   export OPENROUTER_API_KEY="sk-or-v1-..."
+   # Or persist it:
+   openclaw config set env.OPENROUTER_API_KEY "sk-or-v1-..."
+   ```
+
+2. **The `freeride` CLI is installed.** Check with `which freeride`. If not found:
+   ```bash
+   cd ~/.openclaw/workspace/skills/free-ride
+   pip install -e .
+   ```
+
+## Primary Workflow
+
+When the user wants free AI, run these steps in order:
+
+```bash
+# Step 1: Configure best free model + fallbacks
+freeride auto
+
+# Step 2: Restart gateway so OpenClaw picks up the changes
+openclaw gateway restart
+```
+
+That's it. The user now has free AI with automatic fallback switching.
+
+Verify by telling the user to send `/status` to check the active model.
+
+## Commands Reference
+
+| Command | When to use it |
+|---------|----------------|
+| `freeride auto` | User wants free AI set up (most common) |
+| `freeride auto -f` | User wants fallbacks but wants to keep their current primary model |
+| `freeride auto -c 10` | User wants more fallbacks (default is 5) |
+| `freeride list` | User wants to see available free models |
+| `freeride list -n 30` | User wants to see all free models |
+| `freeride switch <model>` | User wants a specific model (e.g. `freeride switch qwen3-coder`) |
+| `freeride switch <model> -f` | Add specific model as fallback only |
+| `freeride status` | Check current FreeRide configuration |
+| `freeride fallbacks` | Update only the fallback models |
+| `freeride refresh` | Force refresh the cached model list |
+
+**After any command that changes config, always run `openclaw gateway restart`.**
+
+## What It Writes to Config
+
+FreeRide updates only these keys in `~/.openclaw/openclaw.json`:
+
+- `agents.defaults.model.primary` — e.g. `openrouter/qwen/qwen3-coder:free`
+- `agents.defaults.model.fallbacks` — e.g. `["openrouter/free", "nvidia/nemotron:free", ...]`
+- `agents.defaults.models` — allowlist so `/model` command shows the free models
+
+Everything else (gateway, channels, plugins, env, customInstructions, named agents) is preserved.
+
+The first fallback is always `openrouter/free` — OpenRouter's smart router that auto-picks the best available model based on the request.
+
+## Watcher (Optional)
+
+For auto-rotation when rate limited, the user can run:
+
+```bash
+freeride-watcher --daemon    # Continuous monitoring
+freeride-watcher --rotate    # Force rotate now
+freeride-watcher --status    # Check rotation history
+```
+
+## Troubleshooting
+
+| Problem | Fix |
+|---------|-----|
+| `freeride: command not found` | `cd ~/.openclaw/workspace/skills/free-ride && pip install -e .` |
+| `OPENROUTER_API_KEY not set` | User needs a key from https://openrouter.ai/keys |
+| Changes not taking effect | `openclaw gateway restart` then `/new` for fresh session |
+| Agent shows 0 tokens | Check `freeride status` — primary should be `openrouter/<provider>/<model>:free` |