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Why

DeepSeek Harness is young, and its plugin ecosystem is exploding — thousands of plugins, skins, tools, and presets appear weekly. After you install a few dozen, questions show up fast:

• Which plugin is actually broken or silently failing?
• Which ones slow down every session or eat tokens?
• Am I running duplicates, conflicts, or stale plugins I forgot about?
• Is my setup trustworthy — or a pile of random tags?

The ecosystem has no "health check" yet. dsh-perfscope fills that gap: one click gives you a 0–100 health score, a plain-language issue list, and safe one-click fixes you can undo anytime.

This is the same methodology that powers our VS Code tool, PerfScope — adapted to the agent-harness world, where every run is traceable and runtime data is richer than any IDE.

What it checks

Health score = three dimensions, weighted configurable (default 0.6 / 0.25 / 0.15):

Dimension	Question	Examples of signals
Hard health	Can it actually be used?	mount failures, unmet dependencies, core version conflicts, invalid config, incompatibility with your dsh RC
Runtime health	Is it fast and stable?	tool error/timeout rates, average latency vs. baseline, token / context share
Governance health	Is it tidy and trustworthy?	overlapping capabilities, stale plugins, sources outside curated registries

Severity grading critical / warning / suggestion — every finding is one sentence a human can act on.

Safety first

• Reads your plugin tree and session/telemetry stats locally. Nothing ever leaves your machine by default.
• Fixes only write patch rows to cordis.patch.yml (- id: … + disabled: true, the official patch layer) — never uninstalls, deletes, or edits source.
• Every write is previewed first, recorded in the Doctor Change Log, and reversible with one click.
• Host-critical plugins and hand-edited patch rows are protected from one-click toggles.

Install

dsh plugin --profile web add dsh-perfscope

Restart dsh web, then open Settings → dsh-perfscope.

Prerequisites: Node ^22.19.0 or 24+. Targets dsh 0.1.0-rc.8 (pinned post-SPIKE; preview moves fast — see roadmap).

Usage

Web UI — Settings → dsh-perfscope: run a full check, read your score card, apply safe fixes with preview, undo any fix, export a report. (v1.0)

Headless / CI — scan the real host, fix, undo:

# scan the live dsh profile (read-only; no model key needed)
npx dsh-perfscope scan --profile web --format markdown --out report.md
# shareable score card
npx dsh-perfscope scan --profile web --format html --out scorecard.html
# one-click safe fix (writes cordis.patch.yml, HMR applies in ~1s) and undo
npx dsh-perfscope fix --profile web --disable broken-plugin
npx dsh-perfscope fix --profile web --undo
# offline JSON snapshot mode (no dsh host needed, for CI/fixtures)
dsh-perfscope --input test/fixtures/scan-input.json --format markdown --out report.md

Options: --registry (optional online check of npm publish time / curated status), --sessions-dir, --dsh-cli, --dsh-home.

Development

pnpm install
pnpm test          # pure engine + change-log tests
pnpm run typecheck
pnpm run build     # bundle via tsup

Repository layout and the SPIKE notes that gate host integration live in PROJECT.md (§5). The dsh-facing glue (scanner/, ui/, standalone bootstrap) is stubbed until SPIKE confirms the data contract against the pinned RC.

Roadmap

• S1 SPIKE — done (2026-08-20): dump-config reconstruction and patch+HMR loop confirmed at source level; session-level runtime stats free, per-plugin attribution needs self-built mapping (v1.1). See SPIKE-S1.md.
• S2 v0.1 — done (2026-08-23): real-host scanner (scan), headless fix/undo writing cordis.patch.yml, offline JSONL session analysis (zstd supported), report + score card. npm name locked to dsh-perfscope.
• S3 上架 — awesome-dsh-plugin registry PR, dsh-plugin topic, directories.
• v1.0 — Web UI settings panel, runtime-health dimension wired from session logs.
• v1.1 — per-plugin runtime attribution (tool-name→plugin mapping).

Community

• Tag your setup reports and feature ideas in GitHub Discussions (link incoming).
• Plugin discoverability: covered by the dsh-plugin topic; listed in the awesome-dsh-plugin registry (pending).

License

MIT © 2026 Evhye. Mirrors the PerfScope project license.

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_{Unofficial, open-source project. Not affiliated with DeepSeek AI.}