dsh-tavily

Tavily for DeepSeek Harness: adds the Tavily Search API as a web search provider, plus a Tavily MCP bridge — keyless search / extract; crawl / map / research with an API key. Works on DSH 0.1.5 (DSH Desktop) through 0.2.x, in the web profile and in headless / acp / sdk profiles.

Install

npm (stable, official recommendation):

dsh plugin --profile web add @pymodel/dsh-tavily
dsh web

Or follow GitHub (latest commit on the repo):

dsh plugin --profile web add github:pymodel/dsh-research-plugins#path:packages/dsh-tavily

Settings → Plugins → Tavily web search (DSH 0.1.5 / DSH Desktop), or Plugins → @pymodel/dsh-tavily (DSH 0.1.7+): turn the toggle on. The key is optional; leave it blank for keyless search. Test connection at the bottom-left checks that search works now (including keyless).

Pin a commit:

dsh plugin --profile web add github:pymodel/dsh-research-plugins#path:packages/dsh-tavily#<commit>

Remove:

dsh plugin --profile web remove dsh-tavily

dsh.bundle · prebuilt lib/ · git install does not need allowBuilds

Features

• Settings toggle: off = official DeepSeek, on = Tavily — no uninstall to switch back
• No key uses Tavily keyless; a key uses Authorization: Bearer
• Bottom-left connection test: one real Tavily search (max_results: 1); keyless if no key, account quota if a key is saved (1 credit). Served on DSH's authenticated /api channel, so other websites cannot call it
• Clear failure reasons: invalid key, rate or plan limit (HTTP 429 / 432 / 433), timeout, network, plus Tavily's own error text
• Timeout, abort, https-only endpoint (plain http allowed to a localhost gateway), drops results without a url; publication dates normalized to ISO 8601
• Settings card design refresh: collapsed-header mode badge (Official DeepSeek / Tavily keyless / Tavily API key) with a status dot, so the active provider is visible at a glance
• Accessible async feedback: polite live-region announcements for connection-test and save outcomes, inline button spinners, connected-success tint — all honoring prefers-reduced-motion
• Show/hide reveal for the API key input (with autocomplete and spellcheck off)
• Opt-in Tavily Search parameters via plugin config (see Configuration)
• Key and toggle live on the credentials plane, not the settings file
• Tavily MCP bridge: mcp__tavily__tavily_search / tavily_extract work keyless; tavily_crawl / tavily_map / tavily_research unlock with TAVILY_API_KEY

Behavior

Web search

Provider id: tavily.

MCP tools

The bundled MCP row registers Tavily's hosted MCP server under the tavily namespace and works out of the box:

• Keyless (default): the required X-Tavily-Access-Mode: keyless header selects free rate-limited access to tavily_search and tavily_extract.
• Keyed: set TAVILY_API_KEY to unlock tavily_crawl / tavily_map / tavily_research and use your account quota. Tool calls may run up to 10 minutes so research reports finish:

export TAVILY_API_KEY=tvly-...

or in a project .env / $DSH_HOME/.env:

TAVILY_API_KEY=tvly-...

The key goes into the Authorization: Bearer header at load time — never into the endpoint URL and never into YAML. A key added to .env needs a dsh web restart.

If your profile's cordis.patch.yml already inserts its own Tavily MCP row (id mcp-tavily or serverName tavily), DSH will not boot with both: delete that row, or turn it into an override of mcp-tavily (see Already have your own MCP row?).

Credentials

The search key and toggle are stored on the credentials plane ($DSH_HOME/.credentials.yaml). Whether an environment variable of the same name overrides the stored value depends on the DSH version (0.2.0: the environment wins and the card shows the field read-only; 0.2.1+: the stored value wins). The MCP bridge reads TAVILY_API_KEY from the launch environment only, because MCP rows resolve before credentials are materialized, so a key saved in the card does not reach the MCP tools. Do not commit real keys.

Configuration

Optional plugin config (cordis.patch.yml row web-search-tavily):

The number of results follows the web_search tool's own maxResults (capped at Tavily's 20).

Updates

• 0.4.0
  • Security: the Test connection endpoint moved to DSH's authenticated /api channel, so other websites can no longer spend your Tavily credits through it.
  • Fallback: turning Tavily off now uses the host's registered official DeepSeek provider, so DeepSeek account sign-in, your DeepSeek search settings and session logging work as in stock DSH.
  • Profiles: the provider now loads in headless / acp / sdk profiles; only web is required.
  • Errors: Tavily's error messages ({ detail: { error } }) are shown, and rate and plan limits are reported as such.
  • Search: publication dates are requested and normalized to ISO 8601, ultra-fast depth is supported, and result counts are capped at 20.
  • Settings card: a background refresh no longer discards an unsaved key; load failures are shown; the switch and key field have accessible labels; zh / en titles and an icon are included for the Plugins page and markets.
  • Removed config: apiKey, apiKeyEnv, allowCustomBaseURL and maxResults are gone. The key is always the TAVILY_API_KEY credential.
  • MCP: the tool timeout is raised to 10 minutes for tavily_research.
  • Packaging: engines.dsh is declared, the tarball ships a LICENSE, and releases are published with npm provenance.
• 0.3.1 Works on DSH 0.1.5 (DSH Desktop) and 0.1.7: the search provider no longer fails to start on 0.1.7 (settings.register is gone there); the settings card loads its store from @deepseek-ai/dsh-client-store (the removed dsh-client-runtime left it blank and raised a DSH Desktop Safe Mode warning), writes through remote.credentials so Save works, refreshes on credentials/reference-updated, and also renders on 0.1.7's plugin page; peer ranges set to >=0.1.5-rc.2 <0.3.0-0 so DSH 0.2's installer accepts it (tested on 0.1.5-rc.2, 0.1.7-rc.2 and 0.2.0-rc.1); the probe route is released on plugin reload; the web override keeps dsh-base's fetchProvider: http; README documents the duplicate mcp-tavily row conflict.
• 0.3.0 Settings-card design refresh informed by current UI/a11y guidance (ARIA live regions for async status, prefers-reduced-motion support): header mode badge with status dot, spinner states on Test/Save, saved confirmation announcement, show/hide key toggle. Server provider adopts the latest Tavily Search API surface behind opt-in config: searchDepth including the new fast tier, and auto_parameters.
• 0.2.0 MCP bridge: keyless mode via X-Tavily-Access-Mode: keyless (row always on); keyed auth moved from URL query parameter to Authorization: Bearer header. Search provider: caller cancellation preserved on runtimes without AbortSignal.any.
• 0.1.0 First release as @pymodel/dsh-tavily. Web search provider with settings toggle (off = official DeepSeek, on = Tavily) plus a Tavily MCP bridge (extract / crawl / map). English-only localisation.

Author

elkaix · pymodel