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dsh-htmlui

Sandboxed HTML/CSS/JS session UI layer for DeepSeek Harness with five layout placements and SSE bridge.

UI & ProductivityDeveloper ToolsBrowser & WebSecurity & PolicySkills & WorkflowsRemote Execution
0GitHub Stars0ForksUpdated2026-10-09

Install

$ dsh plugin --profile web add github:mostkia/dsh-htmlui

Plugin Overview & Capabilities

AI-assisted organization based on the public repository snapshot. The content must be grounded in source evidence and does not replace compatibility or security verification.

source-grounded
dsh-htmlui is an interactive UI layer for DeepSeek Harness that enables agents to author and execute HTML, CSS, and JavaScript inside sandboxed iframes. It supports five layout placements—inline, docked in the right sidebar, floating window, fullscreen, or background. Documents communicate bi-directionally with the agent using POST actions and SSE streaming via an injected bridge, backed by persistent SQLite storage slots and strict CSP capability tokens.

Key Capabilities

  • Render agent-authored HTML/CSS/JS in sandboxed iframes with five placements: inline, dock-right, float, fullscreen, and background
  • Bidirectional communication between the UI document and agent using POST actions and SSE updates via the dshHTML bridge
  • Persistent server-side storage slots providing a 192 KiB synchronous value layer and an on-demand SQLite row layer (up to 16 MiB per record)
  • Built-in template management allowing UI templates to be saved, reused, or loaded directly from disk without model round trips
  • Opaque-origin sandboxed execution governed by per-document capability HMAC tokens, strict CSP, and configurable origin policies

Useful For

  • Building interactive agent-driven dashboards, data visualizations, and custom control panels inside DeepSeek Harness
  • Creating persistent desktop-style widgets such as scratchpads, notes, or mini-applications that survive session restarts
  • Displaying rich media, WebGL, or Canvas applications alongside chat conversations without polling

Who It Fits

  • DeepSeek Harness users seeking rich generative UI capabilities
  • Developers building visual tooling, dashboards, or mini-apps powered by LLMs
  • Engineers automating repetitive workflows with interactive custom HTML controls

Documented Limitations

  • Iframe runs in an opaque origin sandbox without allow-same-origin, preventing direct access to host cookies or localStorage
  • Requires explicit configuration of allowedOrigins if exposed outside localhost loopback interfaces
  • Host backend changes require a DSH restart to reload index.js
  • Synchronous value-layer storage is capped at 192 KiB per slot

DSH Compatibility

Version-specific runtime evidence collected by DSH Plugin. A missing result means we have not tested that combination yet.

Not tested yetNo runtime compatibility tests have been published yet.

Security Signals

Objective signals discovered from package metadata and source inspection. These are not a guarantee that a plugin is safe.

Dependency Counts

package.json declares 0 runtime, 0 development, 8 peer, and 0 optional dependencies.

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Dsh Bundle Declared

package.json declares DSH bundle metadata.

info
License Declared

GitHub reports the repository license as MIT.

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Package Manifest Available

A root package.json was captured and can be inspected by the registry.

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Source Available

Public GitHub source metadata is available for this registry snapshot.

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Source & Registry Notes

Public provenance, Registry classification, and the latest source check for this entry, kept separate from runtime verification.

Source repository
mostkia/dsh-htmlui
Registry source
GitHub · dsh-plugin topic
Registry classification
Plugin
Source checked
b0e2948 · 2026-10-19

This project is independently indexed from public source information. DSH Plugin is not affiliated with DeepSeek or the plugin author. Always check the author repository before installation.

Repository Activity

GitHub stars
0GitHub stars
Forks
0
Open issues
0
Last commit
2026-10-09
Last release
No release detected
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