NousResearch/hermes-agent

Fix mid-turn model switching and session guard errors

Cluster 126343 · hermes cli. Data as of 2026-10-24 20:38 UTC

Nothing open on GitHub. Fix merged in #134906 on 8 Oct 2026. Check it covers your case.

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items grouped

Known?: Yes. 4 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #134906. Check it covers your case. No release data is tracked.
Tracker: The maintainers' tracker marks this unresolved. That is separate from the fix event.
Still open: Nothing open on GitHub.

Next step: read #134906, then check it covers your case.

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These items address bugs in model selection and switching logic: a mid-turn model pick incorrectly deferring, a session-lifetime token counter causing the large-context switch guard to misfire, and a desktop UI showing a spurious failed-reply card during model switches.

Open issues0

No open issues.

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No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

#134847 fix(desktop): switching models no longer shows a failed-reply card that then succeeds

merged to main

files: contributors/emails/[redacted:email], hermes_cli/model_selection_guards.py, tests/hermes_cli/test_context_cache_switch_guard.py, tests/tui_gateway/test_deferred_model_switch_confirm.py, tui_gateway/methods_config_set.py, tui_gateway/model_switch.py, tui_gateway/session_compression.py
#134906 fix(tui_gateway): a model picked mid-turn without --provider asks first instead of being dropped next turn (follow-up #134847)

merged to main

files: hermes_cli/context_switch_guard.py, tests/hermes_cli/test_context_switch_guard.py, tests/tui_gateway/test_deferred_model_switch_confirm.py, tui_gateway/methods_config_set.py, tui_gateway/session_compression.py

1 PR closed without merging

From the close comments: done elsewhere 1

#126346 fix(cli): ignore lifetime session tokens in the switch guard · done elsewhere → 96c2d9f, #134847, #134906

Closed issues · 1

Closed#126343selection_context_for_agent reads the lifetime session counter, so the large-context switch guard reports a wrong size and fires on every long session

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Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
Pairwise link density 0.50: the share of item 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.

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At a glance

Subsystem: hermes cli
Merged PRs: #134847, #134906
Closed issues: 1
Attempts: 1 PR closed without merging
Fix link checked: 8 Oct 2026

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