Q&A: Tool Use & API Integration — How the Agent Calls External Services

[AGI-Corporation]

Tool Use & API Integration Deep-Dive Q&A

This thread is dedicated to questions about how CactusRalph-Coder calls tools, invokes APIs, and integrates with external services — from browser actions and shell commands to REST/GraphQL endpoints and custom function schemas.

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Common Questions

Tool registration & schemas

• How do I register a custom tool or function for the agent to call?
• What schema format does CactusRalph-Coder use for tool definitions (OpenAI-style, LangChain, custom)?
• Can I version-control tool schemas alongside my codebase?

API authentication & secrets

• How does the agent securely handle API keys and OAuth tokens?
• Can I pass secrets via environment variables, or does CactusRalph-Coder have a secrets manager?
• What happens if an API call returns a 401 or 403 — does the agent retry or escalate?

Error handling & retries

• How does the agent handle API rate limits and 429 responses?
• Can I define fallback tools if the primary API is unavailable?
• Where do I see the raw request/response logs for tool calls?

Chaining & parallel calls

• Can the agent call multiple tools in parallel, or is it always sequential?
• How do I chain tool outputs as inputs to the next tool in a plan?
• Is there a max number of tool calls per task or session?

Custom integrations

• How do I integrate a REST API that requires pagination?
• Can the agent interact with GraphQL endpoints natively?
• Is there a built-in browser/Playwright tool, and how do I configure it?

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Post your tool integration questions below. Include your tool schema, error message, and agent config snippet for the fastest resolution.