Cairn
NousResearch/hermes-agent

Tool-call corruption from context compression and jiter

Cluster 127260 · agent. Data as of

1 open item. Fix attempted, not merged.

The short answer

1open issue
0open PRs
3items grouped
Known?
Yes. 3 related items grouped here, 0 issues already closed.
Fix event
No fix has been merged to main. 2 PRs closed without merging; see the attempts below.
Tracker
The maintainers' tracker marks this unresolved. That is separate from the fix event.
Still open
1 issue and 0 PRs.

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.

Open issues1

  • Issue#127260Tool-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

Open PRs0

No open pull requests.

2 PRs closed without merging

From the close comments: partial fix 2

  • #127613 fix(agent): refuse partial counted compression markers before dispatch · partial fix → d486ba0, #130528
  • #129316 Fix #127260: Disable jiter on Windows to prevent tool-call corruption · partial fix
How this cluster was grouped
  • Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
  • Pairwise link density 0.67: 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
agent
Closed issues
0
Attempts
2 PRs closed without merging

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