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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Closing this branch — it targets The WebSearchTool idea is worth having. Two things would need to change in a version against
Separately, and worth acting on regardless of this PR: that key has been visible in this diff since May. It should be rotated. |
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Aug 6, 2026
The Secret history scan has failed on main since dd8f0a8. Cause: merging HKUDS#131 with -s ours recorded the branch in history without applying its tree, and gitleaks scans history, not the working tree. The finding is a fixture, not a credential — the literal "sk-secret123456" inside a RuntimeError message, asserting that error text is redacted before it reaches the UI. Its file, tests/ui_session_resume_test.py, does not exist on main, so the finding cannot be fixed by editing it; a fingerprint entry is the only route. Verified: gitleaks over origin/main now reports no leaks across 240 commits. Note for future -s ours merges: they bring the branch's full history under the secret scan. Two branches deliberately left unmerged (HKUDS#133, HKUDS#143) carry findings of their own, and HKUDS#133's is a real key — merging them for attribution alone would have put it in main's history permanently. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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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.