Independent evidence layer
DeepSeek Harness, with the missing proof.
Install DSH, inspect plugin evidence, and generate MCP configuration with versions, environments, dates, failures, and unknowns kept visible.
npx @deepseek-ai/dsh webHarnessBase lab · 2026-08-18
What has actually been tested.
These are retained, version-pinned runs—not directory metadata or video claims. Open the owning page to see the complete environment, result, and evidence boundary.
Windows lifecycle
Base startup, rc.6 → rc.7 upgrade, rollback, reversible profile removal, and clean profile recreation.
MCP transports
Namespaced Tools over stdio and Streamable HTTP, including header delivery, outage, recovery, and child cleanup.
Plugin load matrix
Vision 0.1.5 and Lark 0.2.2 loaded; OOMOL 0.1.4 reproduced a client loader failure.
Choose the failing boundary
One search intent. One complete task.
HarnessBase does not split spelling variants into thin pages. Each route owns a real job and shows what is official, observed, tested, or still unknown.
Install DeepSeek Harness
Choose npm or source, generate the command, and verify more than a listening port.
02Complete the first task
Configure a model, choose a workspace, and start with a controlled read-only request.
03Inspect plugin evidence
Separate official, repository, candidate, rejected, and actually tested states.
04Generate MCP configuration
Build stdio or Streamable HTTP cordis.yml entries locally in your browser.
05Configure model providers
Understand key storage, custom endpoints, model identity, and error boundaries.
06Diagnose a failure
Start from startup, browser, provider, workspace, plugin, MCP, speed, or token symptoms.
Verification grammar
Unknown is a result—not an empty cell.
A repository can exist without being a native plugin. A package can install without loading. A feature can work on one DSH version and fail on the next.
Official
Directly supported by the DeepSeek product site, repository, or documentation.
sourceInstall verified
Package operation reproduced in a named DSH, runtime, OS, and date.
testRepository evidence
Identity or setup is described by the source, but HarnessBase has not run it.
repoUnknown
Evidence is missing or cannot support a compatibility or permission conclusion.
holdProvenance ledger
Sources behind the current homepage snapshot
- Official Official DeepSeek Harness repository ↗
Canonical identity, quick start, Developer Preview status, source workflow, and plugin architecture.
- Repository npm package @deepseek-ai/dsh ↗
Published version metadata. Registry state does not by itself prove a successful run.
- Official Official Web UI guide ↗
Model, workspace, and first-task flow.
- Official Official MCP Client Bridge README ↗
stdio and Streamable HTTP configuration, namespacing, reconnect behavior, and Tools-only boundary.
- Direct test HarnessBase Windows lifecycle test
Retained commands, environment, HTTP readiness, process-tree memory, browser checks, version switching, profile removal, and reinstall results.
- Direct test HarnessBase MCP end-to-end test
Deterministic local stdio and Streamable HTTP echo fixtures on DSH 0.1.0-rc.7 and MCP SDK 1.30.0.
- Direct test HarnessBase three-plugin load matrix
Pinned package install, configuration dump, UI load, restart, and cleanup on isolated Windows profiles.