Harness Insights

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A bundled Cordis plugin for DeepSeek Harness. It adds a local-first Usage insights settings page without modifying upstream Harness source.

Published package: @anarkhgatsby/deepseek-harness-insights.

Preview

The plugin adds a Usage insights page under Harness settings, with token
activity, model usage, active sessions, cache hit rate, activity breakdown, and
the most frequently used tools.

Install as a Harness bundle

The package follows the official Harness bundle manifest and can be installed
into a profile with dsh plugin:

dsh plugin --profile demo add @anarkhgatsby/deepseek-harness-insights
dsh --profile demo

To remove it later:

dsh plugin --profile demo remove @anarkhgatsby/deepseek-harness-insights

The plugin is web-only and targets the 0.1.1-rc.2 Harness projection and
client APIs. It is an independent, unofficial community plugin and is not
published by DeepSeek.

For local development, the same bundle can be installed from a checkout:

dsh plugin --profile demo add ./packages/harness-insights

The package also retains its dsh.client metadata so the browser entry is
loaded with the required Harness client services.

Data boundary

Harness Insights folds only structured session metadata:

• assistant/message.data.usage
• assistant/message.data.message.source.provider/model
• tool/call.data.name
• event timestamps and session projection identity

It does not request session history in the browser, store message content, read API keys, or upload usage data. Historical aggregation runs through Harness's official sessionProjectionCache.coldSnapshot() path and persists only the projection checkpoint owned by Harness.

Packaging

The package is developed independently under packages/harness-insights and copied into each bundled runtime at build time. Harness Desktop deploys its tiny pure-JavaScript runtime copy to the standard out-of-tree plugin root under $DSH_HOME/node_modules and loads it through a --patch overlay.

The plugin contains no architecture-specific native modules and is shared by macOS arm64, macOS x86_64, and Windows x86_64 builds.

Tool icon assets

assets/tool-icons contains the project-provided Codex-style Harness tool icon set: 26 matching SVG pairs for light and dark interfaces. The build embeds the optimized pairs into the client bundle; the UI switches them through Harness's body[data-ds-dark-theme] contract without its own theme preference.