cogito/options.go

package cogito

import (
	"context"

	"github.com/modelcontextprotocol/go-sdk/mcp"
	"github.com/mudler/cogito/prompt"
)

// Options contains all configuration options for the Cogito agent
// It allows customization of behavior, tools, prompts, and execution parameters
type Options struct {
	prompts                prompt.PromptMap
	maxIterations          int
	tools                  Tools
	deepContext            bool
	toolReasoner           bool
	toolReEvaluator        bool
	statusCallback         func(string)
	gaps                   []string
	context                context.Context
	infiniteExecution      bool
	maxAttempts            int
	feedbackCallback       func() *Fragment
	toolCallCallback       func(*ToolChoice) bool
	toolCallResultCallback func(Tool)
	strictGuidelines       bool
	mcpSessions            []*mcp.ClientSession
	guidelines             Guidelines
}

type Option func(*Options)

func defaultOptions() *Options {
	return &Options{
		maxIterations:  1,
		maxAttempts:    1,
		context:        context.Background(),
		statusCallback: func(s string) {},
	}
}

func (o *Options) Apply(opts ...Option) {
	for _, opt := range opts {
		opt(o)
	}
}

var (
	// EnableDeepContext enables full context to the LLM when chaining conversations
	// It might yield to better results to the cost of bigger context use.
	EnableDeepContext Option = func(o *Options) {
		o.deepContext = true
	}

	// EnableToolReasoner enables the reasoning about the need to call other tools
	// before each tool call, preventing calling more tools than necessary.
	EnableToolReasoner Option = func(o *Options) {
		o.toolReasoner = true
	}

	// EnableToolReEvaluator enables the re-evaluation of the need to call other tools
	// after each tool call. It might yield to better results to the cost of more
	// LLM calls.
	EnableToolReEvaluator Option = func(o *Options) {
		o.toolReEvaluator = true
	}

	// EnableInfiniteExecution enables infinite, long-term execution on Plans
	EnableInfiniteExecution Option = func(o *Options) {
		o.infiniteExecution = true
	}

	// EnableStrictGuidelines enforces cogito to pick tools only from the guidelines
	EnableStrictGuidelines Option = func(o *Options) {
		o.strictGuidelines = true
	}
)

// WithIterations allows to set the number of refinement iterations
func WithIterations(i int) func(o *Options) {
	return func(o *Options) {
		o.maxIterations = i
	}
}

// WithPrompt allows to set a custom prompt for a given PromptType
func WithPrompt(t prompt.PromptType, p prompt.StaticPrompt) func(o *Options) {
	return func(o *Options) {
		if o.prompts == nil {
			o.prompts = make(prompt.PromptMap)
		}

		o.prompts[t] = p
	}
}

// WithTools allows to set the tools available to the Agent
func WithTools(tools ...Tool) func(o *Options) {
	return func(o *Options) {
		o.tools = append(o.tools, tools...)
	}
}

// WithStatusCallback sets a callback function to receive status updates during execution
func WithStatusCallback(fn func(string)) func(o *Options) {
	return func(o *Options) {
		o.statusCallback = fn
	}
}

// WithGaps adds knowledge gaps that the agent should address
func WithGaps(gaps ...string) func(o *Options) {
	return func(o *Options) {
		o.gaps = append(o.gaps, gaps...)
	}
}

// WithContext sets the execution context for the agent
func WithContext(ctx context.Context) func(o *Options) {
	return func(o *Options) {
		o.context = ctx
	}
}

// WithMaxAttempts sets the maximum number of execution attempts
func WithMaxAttempts(i int) func(o *Options) {
	return func(o *Options) {
		o.maxAttempts = i
	}
}

// WithFeedbackCallback sets a callback to get continous feedback during execution of plans
func WithFeedbackCallback(fn func() *Fragment) func(o *Options) {
	return func(o *Options) {
		o.feedbackCallback = fn
	}
}

// WithToolCallBack allows to set a callback to prompt the user if running the tool or not
func WithToolCallBack(fn func(*ToolChoice) bool) func(o *Options) {
	return func(o *Options) {
		o.toolCallCallback = fn
	}
}

// WithToolCallResultCallback runs the callback on every tool result
func WithToolCallResultCallback(fn func(Tool)) func(o *Options) {
	return func(o *Options) {
		o.toolCallResultCallback = fn
	}
}

// WithGuidelines adds behavioral guidelines for the agent to follow.
// The guildelines allows a more curated selection of the tool to use and only relevant are shown to the LLM during tool selection.
func WithGuidelines(guidelines ...Guideline) func(o *Options) {
	return func(o *Options) {
		o.guidelines = append(o.guidelines, guidelines...)
	}
}

// WithMCPs adds Model Context Protocol client sessions for external tool integration.
// When specified, the tools available in the MCPs will be available to the cogito pipelines
func WithMCPs(sessions ...*mcp.ClientSession) func(o *Options) {
	return func(o *Options) {
		o.mcpSessions = append(o.mcpSessions, sessions...)
	}
}