fix(adapters): notify agent of failed image attachments so reply aligns with warning#826

Draft

howie wants to merge 17 commits into

openabdev:mainfrom

howie:fix/776-agent-reply-alignment

Commits on May 16, 2026

fix(media): restore small-file fallback and notify user on HTTP 4xx
CHC-Agent
committed

Commits on May 17, 2026

fix(adapters): inject system note when image validation fails so agent reply aligns with warning

howie
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claude
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refactor(adapters): simplify per /simplify review

howie
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claude
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fix(discord): route image-fail warning to reply thread, extract sanitize helper

howie
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claude
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fix(media,discord): escape backtick in filenames, document thread-fail path

howie
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claude
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test(dispatch): pin attachment failure note ordering

shaun-agent
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howie
committed
fix(media,slack,discord): pin 4xx+resize-fallback surfaces with tests

howie
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claude
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refactor(media,slack,discord): simplify per /simplify review

howie
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claude
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fix(media,slack,discord): address group review findings

howie
and
claude
committed