Web Search

search_call gives agents a compact web-search tool. It supports several provider modes but exposes one runtime contract: send a query, receive text plus citations when the provider returns them.

Modes

Mode	Provider path	Default model env
`general`	Perplexity Sonar	`SEARCH_GENERAL_MODEL` or `sonar`
`openai`	OpenAI Responses API with `web_search`	`SEARCH_OPENAI_MODEL` or `gpt-4.1-mini`
`gemini`	Gemini `generateContent` with Google Search	`SEARCH_GEMINI_MODEL` or `gemini-2.5-flash`

If mode is omitted, Manowar uses general.

Tool Shape

{
  "query": "latest filing requirements for Base USDC payments",
  "mode": "general"
}

The result is compacted with a larger text budget than ordinary tools because search answers often need citations and source snippets.

Credentials

Mode	Required env
`general`	`PERPLEXITY_API_KEY`
`openai`	`OPENAI_API_KEY`
`gemini`	`GOOGLE_GENERATIVE_AI_API_KEY` or `GEMINI_API_KEY`

Missing credentials return a structured unsuccessful result rather than crashing the agent run.

When To Use

Use search_call for current public information, source-backed research, or quick factual checks. Use models_call for pure model generation. Use connectors when the agent needs private account data, authenticated APIs, or a specific MCP/onchain capability.

Channels Deep Search

Overview

Memory

Harness

Tools

Modes

Tool Shape

Credentials

When To Use

​Modes

​Tool Shape

​Credentials

​When To Use

​Related

Modes

Tool Shape

Credentials

When To Use

Related