v2 is a new Go module (v2/) with a dramatically simpler API: - Unified Message type (no more Input marker interface) - Define[T] for ergonomic tool creation with standard context.Context - Chat session with automatic tool-call loop (agent loop) - Streaming via pull-based StreamReader - MCP one-call connect (MCPStdioServer, MCPHTTPServer, MCPSSEServer) - Middleware support (logging, retry, timeout, usage tracking) - Decoupled JSON Schema (map[string]any, no provider coupling) - Sample tools: WebSearch, Browser, Exec, ReadFile, WriteFile, HTTP - Providers: OpenAI, Anthropic, Google (all with streaming) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
76 lines
1.8 KiB
Go
76 lines
1.8 KiB
Go
package tools
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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llm "gitea.stevedudenhoeffer.com/steve/go-llm/v2"
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)
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// HTTPParams defines parameters for the HTTP request tool.
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type HTTPParams struct {
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Method string `json:"method" description:"HTTP method" enum:"GET,POST,PUT,DELETE,PATCH,HEAD"`
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URL string `json:"url" description:"Request URL"`
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Headers map[string]string `json:"headers,omitempty" description:"Request headers"`
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Body *string `json:"body,omitempty" description:"Request body"`
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}
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// HTTP creates an HTTP request tool.
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//
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// Example:
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//
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// tools := llm.NewToolBox(tools.HTTP())
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func HTTP() llm.Tool {
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return llm.Define[HTTPParams]("http_request", "Make an HTTP request and return the response",
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func(ctx context.Context, p HTTPParams) (string, error) {
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var bodyReader io.Reader
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if p.Body != nil {
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bodyReader = bytes.NewBufferString(*p.Body)
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}
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req, err := http.NewRequestWithContext(ctx, p.Method, p.URL, bodyReader)
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if err != nil {
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return "", fmt.Errorf("creating request: %w", err)
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}
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for k, v := range p.Headers {
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req.Header.Set(k, v)
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}
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resp, err := http.DefaultClient.Do(req)
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if err != nil {
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return "", fmt.Errorf("request failed: %w", err)
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}
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defer resp.Body.Close()
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// Limit to 1MB
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limited := io.LimitReader(resp.Body, 1<<20)
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body, err := io.ReadAll(limited)
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if err != nil {
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return "", fmt.Errorf("reading response: %w", err)
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}
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headers := map[string]string{}
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for k, v := range resp.Header {
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if len(v) > 0 {
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headers[k] = v[0]
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}
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}
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result := map[string]any{
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"status": resp.StatusCode,
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"status_text": resp.Status,
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"headers": headers,
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"body": string(body),
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}
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out, _ := json.MarshalIndent(result, "", " ")
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return string(out), nil
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},
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)
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}
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