Bug Report

Version: 2026.2.26

Description:
The params key in agents.list[] entries is documented as supported for per-agent model param overrides (configuration-reference.md: "params: per-agent stream params merged over the selected model entry in agents.defaults.models"), but openclaw doctor rejects it as an unrecognized key.

Config example (from docs):

agents: {
  list: [
    {
      id: "myagent",
      params: { cacheRetention: "short" }  // per-agent override
    }
  ]
}

Doctor output:

Invalid config:
- agents.list.2: Unrecognized key: "params"

Expected: Doctor passes, per-agent params override works at runtime.
Actual: Doctor rejects with "Invalid config" — cannot safely restart gateway.

Use case: Different agents have different activity patterns (burst vs long-running cycles), so per-agent cacheRetention is important for cost optimization. Currently blocked.

Workaround: Using global agents.defaults.models params, which applies to all agents uniformly.