DSH Diff Stat

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A DeepSeek Harness Web plugin that visualizes agent file changes: inline +N −M badges on mutation tool rows, a per-turn file-change summary card, and full aligned diffs on click. Covers native edit/write calls, the minimal preset's str_replace_editor, and Code Dispatch (PTC) sub-calls end to end. No git dependency, no third-party plugin dependencies.

Features

• Inline +N −M badges — takes over the stock mutation rows for edit, write and str_replace_editor (keyed lower-priority shadow; uninstall restores stock). Counts are the real changed lines — the same LCS walk the diff renders — estimated from the arguments while running, exact from the result view once settled
• Aligned diff window — expanding a row opens a height-capped scrollable unified view. Both sides are LCS-aligned first: shared lines render as up to ±3 lines of context around each change, untouched runs collapse into ⋯, and the footer counts exactly the rendered rows
• Per-turn summary card — a collapsible "N files changed +X −Y" bar at each turn's tail; per-file rows with type icons, directory, ±lines, review, open ▾ and undo. Same-file edits merge and accumulate in settlement order
• Code Dispatch (PTC), end to end — dispatch sub-calls carry no wire diff view: rows fall back to the argument-derived diff, and the summary card joins their files from the stock chat tool tree, so a pure Code-Mode turn still gets its card. subCallId dedup keeps replays from double-counting
• File-context boost — bare argument fragments gain up to ±3 lines of real file context when expanded: the booster reads the file through the host's fenced API, locates the fragment's post-image and rebuilds the hunk (best-effort; unlocatable fragments keep their bare form)
• Undo — reverts the turn's files to their pre-turn state: reverse uniqueness-checked hunk peeling, created files deleted, drifted files rejected before any write, atomic commits
• Inline view & open-with — "open" expands a height-capped file preview below the row; the ▾ menu keeps system open, Explorer reveal, VS Code, and absolute/relative path copy
• Frosted glass (optional) — with deepseek-harness-background installed, every plugin surface joins its shared glass recipe; without it the stock opaque look stays untouched — graceful degradation, zero dependencies
• zh / en — copy follows the Web UI language (locale service)

Screenshots

Turn summary card	Taken-over row & aligned diff

Per-turn card with review / open / undo per file (left); an inline badge with its aligned diff window (right), both under the optional background glass.

How it works

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