How agent harness tools work: five local tools plus server-side web search

PawelHuryn · x · 2026-11-05

Step 2 of the Mini Harness series covers tools: the model needs a fixed menu of actions — five local tools (read, write, edit, bash, find), each a short manual the model reads plus a function the harness runs, plus web search which runs on the provider's servers (offered by both Anthropic and DeepSeek).

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