FIX Pretty-print structured JSON assistant responses in chat bubble#1706
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romanlutz merged 5 commits intoMay 13, 2026
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Targets that emit structured JSON instead of natural-language text
(e.g. PromptShieldTarget returning {"userPromptAnalysis":{...}})
were dumped into the chat bubble as a single line of compact text,
giving the user no help reading the result and no visual hint that
the response is structured rather than prose.
This change adds a tryFormatJson helper in MessageList that detects
object- or array-shaped assistant content and renders it pretty-
printed (2-space indent) inside a <pre> with monospace font, scoped
height, and overflow auto so a large response cannot dominate the
chat. Plain text, malformed JSON, scalar JSON values (true/42/null),
streaming/loading content, and user-typed JSON are all left as-is.
Tests cover all of those cases plus a round-trip JSON.parse on the
formatted output to guard against accidental data corruption.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
rlundeen2
approved these changes
May 13, 2026
Resolved conflict in frontend/src/components/Chat/MessageList.test.tsx by keeping both new describe blocks: 'structured JSON assistant responses' (this PR) and 'bubble class composition' (from main). They are independent test groups for different behaviors. All 52 tests in MessageList.test.tsx pass. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…' into fix/gui-promptshield-raw-json
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Fixes finding documented in
PyRIT-gui-findings/findings/bug-promptshield-raw-json/.Summary
Targets that emit structured JSON instead of natural-language text — e.g.
PromptShieldTargetreturning{"userPromptAnalysis":{...}}— were dumped into the chat bubble as a single line of compact text. The user got no help reading the result and no visual hint that the response was structured rather than prose.This change adds a
tryFormatJsonhelper inMessageListthat detects object- or array-shaped assistant content and renders it pretty-printed (2-space indent) inside a<pre>with monospace font, scoped height, and overflow auto so a large response cannot dominate the chat.Plain text, malformed JSON, scalar JSON values (
true/42/null), streaming/loading content, and user-typed JSON are all left as-is.Tests
8 new tests in
MessageList.test.tsxcover:<pre>(with round-tripJSON.parseto guard against data corruption)<pre>){not really json) renders as plain texttrue,42,"hello",null) render as plain textisLoading: true) is not reformattedExisting 43 tests continue to pass; lint and type-check are clean.
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