# NousResearch/hermes-agent · Tool-call corruption from context compression and jiter

## Open now

- 1 issue, 0 PRs open on GitHub.
- #127260: Tool-call arguments (terminal/write_file/execute_code) corrupted in-flight by context compression: truncation (U+27EA markers) + token insertion + BOM instability on Windows git-bash

These items concern in-flight corruption of tool-call arguments caused by context compression markers and jiter behavior, with particular instability on Windows. Fixes address partial compression markers before dispatch and disabling jiter on Windows.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 0 open PR(s), 0 merged PR(s), 2 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #127260: Tool-call arguments (terminal/write_file/execute_code) corrupted in-flight by context compression: truncation (U+27EA markers) + token insertion + BOM instability on Windows git-bash

## Prior & competing PRs

- **#127613: fix(agent): refuse partial counted compression markers before dispatch**. closed without merge
  - maintainer direction: category `partial_fix`; implication `needs_llm`; refs `d486ba0c42`, `#130528`
- **#129316: Fix #127260: Disable jiter on Windows to prevent tool-call corruption**. closed without merge
  - maintainer direction: category `partial_fix`; implication `needs_llm`

## Fix status

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