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Diff Engine — DSH Plugin for DeepSeek Harness
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@ch4acko3/dsh-diff-engine

Diff Engine

Normalized diff engine service for DeepSeek Harness Web plugins

The plugin will be installed here. Keep web if you are unsure.

npx -y @deepseek-ai/dsh plugin --profile web add @ch4acko3/dsh-diff-engine@0.1.3
READMECompatibilityVersions

Compatibility and provenance

Diff Engine is published as @ch4acko3/dsh-diff-engine and currently resolves to version 0.1.3. The Hub verifies its manifest and preserves the exact installation source for reproducible installs.

DSH compatibility
*
Runtime surfaces
web
Release source
npm
Registry updated
9/20/2026

Versions

0.1.3stable
9/19/2026
0.1.2stable
8/22/2026
0.1.1stable
8/21/2026
Show 1 more versionCollapse versions
0.1.0stable
8/21/2026

Related plugins

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Latest
0.1.3
DSH
*
HMR
Process restart
Tree shaking
Safe tree shaking not declared
Unpacked size
157.7 kB
Files
16
Surface
web
License
MIT
Source
npm
GitHub
★ 0
Weekly downloads
27
View source ↗Project homepage ↗
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README

@ch4acko3/dsh-diff-engine

A browser-side Cordis service that normalizes complete file snapshots, DSH FileDiff fragments, and unified or Git patches into one structured diff document.

export const inject = ['diffEngine']

export function apply(ctx) {
  const document = ctx.diffEngine.diff({
    kind: 'files',
    before: { path: 'app.ts', content: 'const value = 1\n' },
    after: { path: 'app.ts', content: 'const value = 2\n', language: 'ts' },
  })
  console.log(document.files[0].hunks)
}

The engine performs no file IO and runs no Git commands. Callers provide the content or patch explicitly. Complete snapshots retain their original source text, including LF, CRLF, or CR separators, so downstream renderers can map source-language tokens back to diff lines. Patch and DSH fragment inputs are marked as fragment-complete because they may omit surrounding source context.