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fix(agent): let subagents recover from tool errors

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chengyongru
2026-08-25 11:54:40 +08:00
committed by chengyongru
parent 2e7ebeb1ca
commit 8332c604da
12 changed files with 140 additions and 252 deletions
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docs/configuration.md
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@@ -2225,22 +2225,11 @@ By default, nanobot only allows one spawned subagent at a time. When the limit i
}
```
Subagents also stop immediately when one of their tools returns an execution error. That default keeps failures visible to the parent agent. If your subagent workflows use tools that can fail transiently and should be retried or worked around by the model, disable hard-stop behavior:
```json
{
"agents": {
"defaults": {
"failOnToolError": false
}
}
}
```
Tool execution errors are returned to the subagent model so it can retry or choose a different approach within the same run. Provider failures, cancellation, and the maximum tool-iteration limit still stop the run.
| Option | Default | Description |
|--------|---------|-------------|
| `agents.defaults.maxConcurrentSubagents` | `1` | Maximum number of spawned subagents that may run at the same time. Attempts to spawn beyond this limit return an error. |
| `agents.defaults.failOnToolError` | `true` | Stop a spawned subagent when a tool execution fails. Set to `false` to return tool errors to the subagent model so it can recover within the same run. |
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