add WebSearchTool with Metaso API integration#133
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Implement web_search tool using the Metaso search API. The tool supports query-based web search with configurable result count, API key resolution from METASO_API_KEY env var, and comprehensive error handling for rate limits, auth failures, and daily quotas. Metaso provides 100-free-searches/day quota. You can set your own `METASO_API_KEY` environment variable to raise that limit.
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Description
Adds
WebSearchTool— a web search tool backed by the Metaso API — and registers it in the default agent toolset. Includes a built-in default API key with ~100 free searches/day.Related Issues
None.
Changes Made
nanobot/agent/tools/web.py— Added_get_metaso_api_key()helper (falls back to built-in default key), andWebSearchToolclass withweb_searchname, supportingqueryand optionaltopKparams.nanobot/agent/loop.py— Imported and registeredWebSearchToolalongsideWebFetchTool.nanobot/workspace/TOOLS.md— Documented the newweb_searchtool.tests/web_search_test.py— 387 lines of tests covering API key resolution, search responses, error handling, and edge cases.