dsh-cost-meter: Adding Session Spend to the DeepSeek Harness Stats Line

What Does It Do?

Cost Meter is a DSH plugin for DeepSeek Harness that shows the current session's spend to the right of the token-usage pill in the Web client's bottom stats line. It solves the problem that DSH carries no price information at all: model metadata has no price field and router catalogs supply no unit prices, so prices can only be configured by the user. The plugin does not meter anything, never touches a model request, and never writes the session log — it simply multiplies the existing tokenUsage projection by the per-bucket unit prices you enter.

Core Features

• Session spend pill: adds a currency pill next to the turn and token-usage pills in the stats line.
• Per-bucket bill: clicking the spend pill opens a detail panel breaking the cost down into four disjoint billing buckets — uncached input, cache read, cache write, and output.
• User-configured unit prices: set the currency symbol, the pricing unit (such as per million tokens), the price of each of the four buckets, and the number of decimals.
• Savings display: an optional savings figure shows how much cache hits save on the current session.
• Pure consumer design: it only reads the host's existing tokenUsage projection, leaving host token accounting, model requests, and the session log untouched.

How to Use This Plugin?

Once enabled in the DSH web profile, the bottom stats line gains a spend pill alongside the existing turn and token-usage pills. On first use you need to fill in the currency symbol, pricing unit, and the four per-bucket unit prices in the plugin config, otherwise the amount stays at zero; after that the stats line reflects the session's spend in real time. Clicking the spend pill shows the per-bucket bill, while the other two pills open detail panels identical to the originals. Because the web profile hot-applies configuration, no host restart is needed, but the browser requires one page refresh to fetch the new client bundle. Maintained by Nanako660 under the MIT license, it is a cost-tracking tool in the DSH plugin ecosystem.

How to Troubleshoot This Plugin?

If the spend pill does not appear in the stats line, first check whether the plugin row made it into the composed configuration tree by dumping the profile config and looking for the corresponding entry. If the row is present but still inactive, run the repository's install verification script, which checks whether the profile can resolve both halves, import the host half, and validate the row config. Note that requesting the launch URL without credentials cannot be used to verify anything — such requests always return 404, including for built-in plugin bundles.