Review by hunk
Keep the exact changes you want and discard the ones you don’t, without throwing away the whole run.
Built for agent-written code
Review what your coding agent actually changed.
Diffward shows what the agent touched, what you touched, and the files you never asked for—then lets you keep or discard each change.
✓ Free during beta✓ No account✓ Works locally
.github/workflows/ci.yml
Collateral Agent
@@ -18,7 +18,7 @@ jobs:
1818
strategy:1919
matrix:20
Removed: node-version: [20, 22]20
Added: node-version: [22]2121
steps:2222
- uses: actions/checkout@v4 Ward Discard Pending review
4files you didn’t
ask about
ask about
One review layer for every local coding agent
Claude CodeCodexCursorAntigravityOpenCode
The review gap
The run finished.
The review just started.
Approval prompts interrupt the work. A plain git diff hides the shape of the run.
Diffward waits until the agent finishes, then turns the full session into one review—with attribution, scope, and risk visible from the start.
A safer handoff
Fast enough for the code your agents produce.
Review a complete run without losing the details that determine whether a change belongs in your codebase.
Know who wrote it
Every hunk is marked as agent, human, or unknown. Diffward says when it can’t be certain.
See surprises first
Files unrelated to your request rise to the top, before they disappear inside a large diff.
Protect your work
Get a clear warning when an agent overwrites lines you edited during the same session.
Review workflows
A clearer review for every agent run.
See how Diffward helps you inspect coding agent changes, investigate unrelated edits, and protect work already in your tree.
01
Review coding agent changes
Follow a focused workflow from completed run to reviewed hunks.
Explore the workflow → 02Find unexpected changes
Investigate files and hunks that may fall outside the request.
See how it works → 03Protect your own edits
Review attribution and catch agent writes that may overwrite your work.
Learn what to check →How it works
Let the agent work.
Review when it’s done.
Diffward observes your working tree in the background. It doesn’t add another prompt box, run another model, or lock you into one agent.
Install the VS Code extension- 01
Start your agent
Use the coding agent and workflow you already have.
- 02
Diffward watches the session
Changes are grouped and attributed as the run unfolds.
- 03
Review the whole run
Collateral and risky changes come first. Ward or discard each hunk.
“You asked for one thing. Your agent changed twelve files.”
Diffward makes the other eleven visible.
Diffward for VS Code
Put a ward around your next diff.
Free during beta. No account required.
Install from Marketplace
code --install-extension Diffward.diffward