feat: bind all tools to LLM with runtime options injection - #46
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…y pattern - Add factory function (createXxxTool) to every tool module that captures runtime options via closure before @tool decoration - Refactor buildToolConfig to use TOOL_FACTORIES map, passing all runtime options: allowedPaths, maxReadSize, registry, conversationsDir, safety, timeout, memoryLimit - Pass sandbox paths, safety config, and timeout from index.js to buildToolConfig - Remove ALL_TOOLS backward-compatibility map and stub createToolWithRuntimeOptions - 100% line coverage on tools/index.js, 751 tests passing
…Custom engines - Removed Exa, Firecrawl, Tavily, and Parallel (DuckDuckGo HTML) - Added DuckDuckGo (free, no key), Google (free, HTML scrape), Bing (BING_API_KEY), SearXNG (SEARXNG_URL), and Custom - Custom engine supports: url, method, body, headers, result fields, api_key, queryKey, titleField, urlField, descriptionField - Updated tests and coverage for new engines
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Description
Replaces the previous web search backends (Exa, Firecrawl, Tavily, Parallel) with a new set of free or low-cost search engines. This dramatically expands search capabilities without requiring paid API keys.
New built-in engines (priority order):
{{query}},{{apiKey}}), optional request body/headers, configurable response parsing fieldsBING_API_KEYenvironment variable (https://dev.bing.com)SEARXNG_URLenv var pointing to a self-hosted SearXNG instanceEnvironment variable configuration:
CUSTOM_SEARCH_URL{{query}}templateCUSTOM_SEARCH_METHODCUSTOM_SEARCH_BODY{{query}}/{{apiKey}}templatesCUSTOM_SEARCH_HEADERSCUSTOM_SEARCH_QUERY_KEYorCUSTOM_RESULT_KEYCUSTOM_TITLE_FIELDCUSTOM_URL_FIELDCUSTOM_DESCRIPTION_FIELDCUSTOM_API_KEYBING_API_KEYSEARXNG_URLType of Change
Testing
tests/unit/tools_web.test.jsto cover all new backends: Bing, SearXNG, Custom, DuckDuckGotests/unit/tools_web_full.test.js(309 tests for old engines)Coverage
tools/index.jsChecklist
npm run lintpasses