fix(approvals): compare the config diff as content, not as whitespace - #173
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A gated whole-document PUT rendered every line of the stored config as
deleted and the whole proposed body as one added line. Both sides were
already parsed, key-sorted and re-printed — but the parse failure path
returned the raw string, so one unparseable side degrades to a single
compact line while the other stays pretty-printed and jsdiff has nothing
to align.
- Repair a redaction marker whose quotes the backend's filter swallowed
("apiKey":<REDACTED>"), but only after a straight parse has failed, so
a legitimate ${vault:<REDACTED>} is never rewritten.
- Say plainly when a side still will not parse, instead of letting a
formatting-only difference read as a document rewrite.
- Fold runs of unchanged lines behind an expandable row, three lines of
context either side.
- Wrap long lines in place rather than behind a horizontal scrollbar,
keeping the JSON indentation.
Shared by the operator approval preview, the agent import preview and
the sync page. 2 i18n keys across 11 locales.
…ces, and name the diff's sides
Review pass over the previous commit.
- The repair targeted a guessed shape ("apiKey":<REDACTED>"). Running
SecretRedactionFilter's rules over JSON bodies shows its generic rule
consumes the key's closing quote, the colon and the value's opening
quote, leaving "apiKey=<REDACTED>" — a bare string where a pair was.
Repair that shape instead, in key position only, with the same
parse-first / fall-back-to-raw guard. Eight real shapes pinned.
- Expanded folds were remembered across a content change; gap ids are
positional, so the sync page's re-preview could pre-open the wrong
run. The set is now tied to the diff it belongs to.
- The header read "Target → Source" on an approval card. It is now a
colour legend, and the operator preview labels the sides
"Stored v{n}" → "Proposed".
2 more i18n keys across 11 locales. Layout measured against the
compiled CSS: no horizontal overflow, long lines wrap in place.
…on warnings Third review pass. The redaction repair added for the diff turns out to be needed by a second reader, so it moves to lib/ where both share it. detectEscalationFlags runs every capability-grant check behind a JSON.parse, and SecretRedactionFilter mangles any body carrying a credential-named field with an 8+ character value — including one it already redacted, since the generic rule runs last and re-matches apiKey":"sk-ant-<REDACTED>. So a request that embedded a credential AND granted dynamicAgents.allowCreation warned about the credential only. "No second warning" reads as "no capability grant", which is the false negative that file exists to prevent. Also from the review: - The caveat claimed "one side" isn't valid JSON when both can be. - The fold button said "click to show" on a keyboard-reachable control. - The legend's arrow is direction, not decoration, and bidi does not mirror U+2192 — it now flips under rtl:. - Gap ids are assigned to every dropped run, so a short unfolded run above a long one cannot renumber the fold out from under a click. Re-measured in LTR, Arabic RTL and dark against the compiled CSS: no horizontal overflow in any, marker gutter on the start edge, long lines wrapping in place.
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📝 WalkthroughWalkthroughThe PR adds redaction-aware JSON parsing, improves ChangesApproval diff and redacted JSON
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: ⚪ Minimal · up to The change is localized to diff rendering and approval previews, and no actionable merge-blocking risk remains based on the supplied evidence. Sequence Diagram(s)sequenceDiagram
participant RequestPreview
participant ResourceDiffViewer
participant parseRedactedJson
participant jsdiff
RequestPreview->>ResourceDiffViewer: provide stored and proposed content
ResourceDiffViewer->>parseRedactedJson: normalize both documents
parseRedactedJson-->>ResourceDiffViewer: parsed JSON or raw content
ResourceDiffViewer->>jsdiff: compare rendered lines
jsdiff-->>ResourceDiffViewer: diff chunks
ResourceDiffViewer-->>RequestPreview: render labeled comparison
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Actionable comments posted: 2
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Inline comments:
In `@src/components/agents/resource-diff-viewer.tsx`:
- Around line 138-153: Replace the native button wrapping the diff context gap
in the gap-rendering block with the established shared button component.
Preserve type="button", the existing expandGap(entry.id) onClick handler,
data-testid="diff-context-gap", and the current styling and content.
- Around line 155-173: Add a stable data-testid row selector to each rendered
diff line in the resource diff viewer. In
src/components/shared/__tests__/resource-diff-viewer.test.tsx lines 87-183 and
src/components/operator/__tests__/request-preview.test.tsx lines 290-311, query
and scope assertions through that row selector before checking row content; no
other changes are needed.
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📒 Files selected for processing (20)
HANDOFF.mdsrc/components/agents/resource-diff-viewer.tsxsrc/components/operator/__tests__/request-preview.test.tsxsrc/components/operator/request-preview.tsxsrc/components/shared/__tests__/resource-diff-viewer.test.tsxsrc/i18n/locales/ar.jsonsrc/i18n/locales/de.jsonsrc/i18n/locales/en.jsonsrc/i18n/locales/es.jsonsrc/i18n/locales/fr.jsonsrc/i18n/locales/hi.jsonsrc/i18n/locales/ja.jsonsrc/i18n/locales/ko.jsonsrc/i18n/locales/pt.jsonsrc/i18n/locales/th.jsonsrc/i18n/locales/zh.jsonsrc/lib/__tests__/redacted-json.test.tssrc/lib/operator/__tests__/escalation-flags.test.tssrc/lib/operator/escalation-flags.tssrc/lib/redacted-json.ts
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…e fold row a focus ring PR review (CodeRabbit). Accepted: diff rows carry data-testid="diff-line" and data-diff-kind, and both suites assert through a rowTexts(kind) helper. That is a real improvement, not just compliance — "the threshold change is an ADDITION" is the distinction between a working diff and a whole-document rewrite, and colour classes cannot be queried. Not taken: swapping the fold row's native <button> for the Button primitive. It is a flush full-width row, so the primitive's cva base (rounded-lg, justify-center, h-8 px-3) would all be overridden at the call site — the restyling CLAUDE.md forbids in the same breath — and a single-use variant in an app-wide, design-synced primitive is worse for the design system than a native element. 630 native buttons across 139 files agree, including the sibling toggle in request-preview.tsx. The finding was right that the row lacked what the primitive would have given it, so it now carries the app's focus treatment, ring-inset so it stays inside the diff box.
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Pull request overview
Improves JSON approval diffs and restores escalation detection for redaction-damaged request bodies.
Changes:
- Adds shared redacted-JSON repair and parsing.
- Normalizes, folds, labels, and wraps diff output.
- Adds regression tests and translations across all locales.
Reviewed changes
Copilot reviewed 20 out of 20 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
HANDOFF.md |
Documents the completed work. |
src/lib/redacted-json.ts |
Adds redacted JSON repair. |
src/lib/__tests__/redacted-json.test.ts |
Tests repair behavior and performance. |
src/lib/operator/escalation-flags.ts |
Uses tolerant parsing for escalation checks. |
src/lib/operator/__tests__/escalation-flags.test.ts |
Tests escalation detection after redaction. |
src/components/agents/resource-diff-viewer.tsx |
Improves normalization, folding, legends, and wrapping. |
src/components/shared/__tests__/resource-diff-viewer.test.tsx |
Expands diff viewer coverage. |
src/components/operator/request-preview.tsx |
Adds approval-specific diff labels. |
src/components/operator/__tests__/request-preview.test.tsx |
Tests approval diff integration. |
src/i18n/locales/en.json |
Adds English diff labels. |
src/i18n/locales/de.json |
Adds German translations. |
src/i18n/locales/fr.json |
Adds French translations. |
src/i18n/locales/es.json |
Adds Spanish translations. |
src/i18n/locales/ar.json |
Adds Arabic translations. |
src/i18n/locales/zh.json |
Adds Chinese translations. |
src/i18n/locales/th.json |
Adds Thai translations. |
src/i18n/locales/ja.json |
Adds Japanese translations. |
src/i18n/locales/ko.json |
Adds Korean translations. |
src/i18n/locales/pt.json |
Adds Portuguese translations. |
src/i18n/locales/hi.json |
Adds Hindi translations. |
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…not the first delimiter
PR review (Copilot), and it is right.
SecretRedactionFilter's value class excludes ',', whitespace, ';', '{',
'}' and ']', so a secret containing one is cut at it and the tail is
left inside the string:
"password":"abcdefgh,rest" -> "password=<REDACTED>,rest"
The repair stopped at that comma, left `rest"` behind, and the retry
failed — so detectEscalationFlags returned inlineCredential alone and
hid the allowCreation grant beside it, which is the exact false negative
this branch set out to close.
A field ends at its closing quote, not at the first delimiter. But a
NON-string field has no closing quote left (`"token":12345678,` becomes
`"token=<REDACTED>,`), so the next quote there belongs to the following
key. The two readings are not distinguishable locally and one body can
hold both, so the choice is now made per field: uniform all-drop and
all-keep first, then the per-field combinations up to a 10-field cap,
with JSON.parse arbitrating every candidate.
Matching also had to stop consuming the remnant — a greedy scan ending
at the next field's opening quote hid that field from the scan.
Seven debris shapes, the reported case and a three-field mix are pinned.
2^n parses of the whole body, so the mixed case needs a ceiling. The uniform all-drop/all-keep pair already answers any number of fields that agree, so this only bounds a genuine mix — and a document mixing more than six disagreeing credential fields is an attack surface, not a scenario. Worst case 64 parses instead of 1024, pinned by a test that feeds it thirty unrepairable fields.
This was referenced Aug 19, 2026
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The approval diff for a gated whole-document
PUTrendered every line of the stored config as deleted and the entire proposed body as one added line — on the one screen whose job is to show what actually changes.What was actually wrong
ResourceDiffVieweralready normalised both sides — parse, deep key-sort, re-print at 2-space indent. But thecatcharoundJSON.parsereturned the raw string, so a side that fails to parse degrades to its original compact single line while the other stays pretty-printed. jsdiff then has no line in common and reports a full rewrite. Nothing in the UI distinguished "the document was replaced" from "one side wouldn't parse".Why it wouldn't parse
Confirmed against the backend source rather than guessed.
SecretRedactionFilter's generic rule (secrets/sanitize/SecretRedactionFilter.java) isIt matches the key's closing quote, the colon and the value's opening quote, then replaces the lot:
— a bare string where a key/value pair was. The
sk-…andBearer …rules replace only the value and leave the document valid; this one does not, and it runs last, so it re-mangles what those already redacted. Verified by running all four rules over JSON bodies.The second victim, which is the more serious one
detectEscalationFlagsruns every capability-grant check behind that sameJSON.parse. So any body carrying a credential-named field with an 8+ character value arrived unparseable and all the checks were skipped silently:An approver reads "no second warning" as "no capability grant" — the exact false negative that file's own comments exist to prevent. It now returns both flags.
The repair therefore lives in
src/lib/redacted-json.ts(parseRedactedJson) and is shared by both readers so they cannot drift — the same reasonRequestRedactorholds the backend's three redaction sites in one class. It is a fallback, never a pre-pass: a body that already parses is returned untouched, so a marker sitting legitimately inside a string (${vault:<REDACTED>}, an escaped JSON body nested in a field) is never rewritten, and a repair that doesn't yield valid JSON is discarded.And the diff itself
Show N unchanged linesrow. Rendering all 400 lines of an agent config back put the reader right where they started.Target → Sourcewas import-dialog vocabulary that said nothing on an approval card and nothing about which colour is which side. The operator preview passesStored v3→Proposed.Shared by three callers, so the agent import preview and the sync page get the same treatment.
Deliberately not changed
The redacted-credential caveat beside the operator diff stays. Masking the stored side to match would remove the noise and hide a real credential change — the wrong trade on an approval surface.
Verification
redacted-json.test.ts(20, incl. a linear-time check — this regex is reachable from untrusted request bodies and the backend went possessive over the same concern),resource-diff-viewer.test.tsx8 → 18,escalation-flags.test.ts54 → 58,request-preview.test.tsx26 → 28.npm run typecheck,npm run lint,npm run i18n:check(4 new keys × 11 locales, translated — not left as inline fallbacks),npm run build.scrollWidth === clientWidthin all three (no horizontal overflow), marker gutter on the start edge in RTL, legend arrow mirrored (scale: -1 1), a 330-charactersystemMessageline wrapping to four lines in place.Summary by CodeRabbit
New Features
Bug Fixes
Tests