NousResearch/hermes-agent

Fix RGBA PNG crash in SimpleX thumbnail encoding

Cluster 117225. Data as of

Nothing open on GitHub. Fix merged in #117603 on 20 Sep 2026. Check it covers your case.

The short answer

0open issues
0open PRs
4items grouped
Known?
Yes. 4 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #117603. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this resolved, deciding PR #117603. That is separate from the fix event.
Still open
Nothing open on GitHub.

These issues and fixes address a crash in the SimpleX adapter when sending RGBA PNG images (such as KDE screenshots), caused by attempting to encode an alpha-channel image as a JPEG thumbnail. The fix involves flattening or handling the alpha channel before encoding.

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.

  • #117603 fix(simplex): alpha PNG images deliver instead of dying on the JPEG thumbnail (#117225, salvage #117243)

    merged to main

    files: plugins/platforms/simplex/adapter.py, tests/gateway/test_simplex_plugin.py

2 PRs closed without merging

From the close comments: done elsewhere 1 · merged via another change 1

  • #117243 fix(simplex): send alpha PNG images without thumbnail crashes · merged via another change → 45a701d, #117603
  • #117317 fix(simplex): flatten alpha before JPEG thumbnail encoding · done elsewhere → 45a701d, #117603
Closed issues · 1
  • Closed#117225[Bug]: SimpleX adapter: sending an RGBA PNG (every KDE screenshot) dies with 'cannot write mode RGBA as JPEG'
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 0.50: 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

Merged PRs
#117603
Closed issues
1
Attempts
2 PRs closed without merging
Fix link checked
20 Sep 2026

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