# NousResearch/hermes-agent · Fallback provider routing fixes and policy additions

## Open now

- 1 issue, 2 PRs open on GitHub.
- #117806: \[Bug\]: Explicit session model pin bypasses fallback_providers — usage-limit 429 exhausts retries and the session dies on the primary
- PR #117814: fix(model-routing): keep configured string fallbacks active
- PR #117816: fix(fallback): parse string entries, warn on every dropped entry, add fallback_policy.halt

These items address bugs and fixes related to fallback provider configuration, including parsing string entries, preventing session model pins from bypassing fallback providers, and keeping configured string fallbacks active. A halt policy option for fallback behavior is also introduced.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 2 open PR(s), 0 merged PR(s), 0 PR(s) closed without merging.
- No fix has been merged to main; one or more PRs were attempted (see below).
- **Recommended:** review the prior/competing PR(s) below. A fix was attempted but not merged; your case may extend or revive that work.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.67`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Open related issues

- #117806: \[Bug\]: Explicit session model pin bypasses fallback_providers — usage-limit 429 exhausts retries and the session dies on the primary

## Prior & competing PRs

- **#117814: fix(model-routing): keep configured string fallbacks active**. open
  - maintainer direction: category `silent_close`; implication `active`
  - files: `agent/agent_init.py`, `hermes_cli/fallback_config.py`, `tests/agent/test_init_fallback_on_exhausted_pool.py`, `tests/hermes_cli/test_fallback_config.py`
- **#117816: fix(fallback): parse string entries, warn on every dropped entry, add fallback_policy.halt**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `#117814`
  - files: `agent/agent_init.py`, `agent/agent_runtime_helpers.py`, `agent/auxiliary_client.py`, `agent/chat_completion_helpers.py`, `agent/turn_api_call.py`, `agent/turn_empty_response.py`, `agent/turn_recovery.py`, `agent/turn_response_check.py`, `agent/turn_truncation.py`, `cron/scheduler.py`, `cron/scheduler_preflight.py`, `hermes_cli/cli_agent_setup_mixin.py`, `hermes_cli/config_defaults.py`, `hermes_cli/fallback_config.py`, `hermes_cli/runtime_provider.py`, `run_agent.py`, `tests/agent/test_auxiliary_named_custom_providers.py`, `tests/agent/test_fallback_policy_halt.py`, `tests/agent/test_init_fallback_refusal_warning.py`, `tests/agent/test_provider_fallback.py` (+9 more)

## Fix status

- No merged fix on record.
- Subsystem: `agent`