# NousResearch/hermes-agent · Native checkpoint triggers premature local preflight compression

## Open now

- Nothing open on GitHub.

These issues and fixes concern a bug where a native compaction checkpoint incorrectly triggers a local preflight check, causing unintended session context loss. The fixes focus on deferring the local preflight step until after the native checkpoint completes.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #104192. Verify it addresses your case.
- **Recommended:** read PR #104192 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-104192`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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.

## Closed / duplicate issues

- #100611: \[Bug\]: Native Responses checkpoint false-trigger forces session context loss

## Prior & competing PRs

- **#104192: fix(compression): defer local preflight after a native compaction checkpoint (salvage #100642 + #103736)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/chat_completion_helpers.py`, `agent/codex_responses_adapter.py`, `agent/context_compressor.py`, `agent/native_compaction.py`, `agent/turn_context.py`, `agent/turn_context_compaction.py`, `agent/turn_preflight.py`, `contributors/emails/[redacted:email]`, `evals/native_compaction/ab_checkpoint_preflight.py`, `tests/agent/test_context_compressor.py`, `tests/agent/test_idle_compaction_lock_and_guards.py`, `tests/run_agent/test_413_compression.py`, `tests/run_agent/test_post_tool_compression_attempt_cap.py`, `tests/run_agent/test_proactive_prune_loop_wiring.py`, `tests/run_agent/test_run_agent.py`
- **#100642: fix(compression): defer local preflight after native checkpoint**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `8d4b7f874d5`, `d6ce3e236d`, `#104192`, `#104154`

## Fix status

- Merged to main in PR #104192 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-06`.