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feat: configurable subagent provider:model with full credential resolution

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Adds delegation.model and delegation.provider config fields so subagents
can run on a completely different provider:model pair than the parent agent.

When delegation.provider is set, the system resolves the full credential
bundle (base_url, api_key, api_mode) via resolve_runtime_provider() —
the same path used by CLI/gateway startup. This means all configured
providers work out of the box: openrouter, nous, zai, kimi-coding,
minimax, minimax-cn.

Key design decisions:
- Provider resolution uses hermes_cli.runtime_provider (single source of
  truth for credential resolution across CLI, gateway, cron, and now
  delegation)
- When only delegation.model is set (no provider), the model name changes
  but parent credentials are inherited (for switching models within the
  same provider like OpenRouter)
- When delegation.provider is set, full credentials are resolved
  independently — enabling cross-provider delegation (e.g. parent on
  Nous Portal, subagents on OpenRouter)
- Clear error messages if provider resolution fails (missing API key,
  unknown provider name)
- _load_config() now falls back to hermes_cli.config.load_config() for
  gateway/cron contexts where CLI_CONFIG is unavailable

Based on PR #791 by 0xbyt4 (closes #609), reworked to use proper
provider credential resolution instead of passing provider as metadata.

Co-authored-by: 0xbyt4 <0xbyt4@users.noreply.github.com>
This commit is contained in:
teknium1 2026-03-11 06:12:21 -07:00
parent 09336a6710
commit 9423fda5cb
6 changed files with 418 additions and 10 deletions
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8
website/docs/user-guide/configuration.md
View file

@ -729,8 +729,16 @@ delegation:
- terminal
- file
- web
# model: "google/gemini-3-flash-preview" # Override model (empty = inherit parent)
# provider: "openrouter" # Override provider (empty = inherit parent)
```
**Subagent provider:model override:** By default, subagents inherit the parent agent's provider and model. Set `delegation.provider` and `delegation.model` to route subagents to a different provider:model pair — e.g., use a cheap/fast model for narrowly-scoped subtasks while your primary agent runs an expensive reasoning model.
The delegation provider uses the same credential resolution as CLI/gateway startup. All configured providers are supported: `openrouter`, `nous`, `zai`, `kimi-coding`, `minimax`, `minimax-cn`. When a provider is set, the system automatically resolves the correct base URL, API key, and API mode — no manual credential wiring needed.
**Precedence:** `delegation.provider` in config → parent provider (inherited). `delegation.model` in config → parent model (inherited). Setting just `model` without `provider` changes only the model name while keeping the parent's credentials (useful for switching models within the same provider like OpenRouter).
## Clarify
Configure the clarification prompt behavior: