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NousResearch/hermes-agent

HTTP 422 errors from screenshots killing sessions

Cluster 72905 · agent. Data as of

Nothing open on GitHub. Fix merged in #106466 on 9 Sep 2026. Check it covers your case.

The short answer

0open issues
0open PRs
3items grouped
Known?
Yes. 3 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #106466. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this resolved, deciding PR #106466. That is separate from the fix event.
Still open
Nothing open on GitHub.

These issues and PRs concern a bug where screenshots sent in tool messages cause HTTP 422 errors that are not properly classified, permanently killing the session. The work involves fixing multimodal tool content pattern matching and error classification to handle this case.

Open issues0

No open issues.

Open PRs0

No open pull requests.

Fixes on record

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

  • #106466 OpenCode Go screenshots no longer kill the session on HTTP 422 (#104731, #89057, salvage #104734 #47026)

    merged to main

    files: agent/error_classifier.py, contributors/emails/[redacted:email], plugins/model-providers/opencode-zen/__init__.py, tests/plugins/model_providers/test_opencode_go_profile.py, tests/run_agent/test_multimodal_tool_content_recovery.py

1 PR closed without merging

From the close comments: superseded by another PR 1

  • #73027 fix: classify 422 through multimodal-tool-content check (#72905) · superseded by another PR → fd6434b, #106466, #104734
Closed issues · 1
  • Closed#72905Screenshot in tool message permanently kills a session: HTTP 422 is never classified, and two provider signatures are missing from _MULTIMODAL_TOOL_CONTENT_PATTERNS
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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
Merged PRs
#106466
Closed issues
1
Attempts
1 PR closed without merging
Fix link checked
9 Sep 2026

For your agent

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