128 lines
3.8 KiB
Go
128 lines
3.8 KiB
Go
// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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package cookiebanner
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import (
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"context"
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_ "embed"
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"fmt"
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"strings"
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"time"
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"go.gearno.de/kit/log"
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"go.gearno.de/kit/pg"
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"go.probo.inc/probo/pkg/agent"
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"go.probo.inc/probo/pkg/agent/tools/search"
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"go.probo.inc/probo/pkg/coredata"
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"go.probo.inc/probo/pkg/llm"
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)
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const (
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agentTimeout = 60 * time.Second
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agentMaxTurns = 5
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agentConfidenceThreshold = 0.6
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agentMaxPatternConfidence = 0.8
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)
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//go:embed prompts/tracker_identification.txt.tmpl
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var trackerIdentificationPrompt string
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// TrackerMappingAgentResult is the structured output the tracker-mapping
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// agent returns.
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type TrackerMappingAgentResult struct {
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ThirdPartyName string `json:"third_party_name" jsonschema:"Name of the company or service that sets this tracker (e.g. 'Google Analytics', 'Meta Pixel'). Empty string if truly unknown."`
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Category coredata.ThirdPartyCategory `json:"category" jsonschema:"Third party category"`
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Description string `json:"description" jsonschema:"What this tracker does in one sentence"`
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Confidence float64 `json:"confidence" jsonschema:"Confidence level from 0.0 to 1.0. Set below 0.5 if unsure."`
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}
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type TrackerMappingConfig struct {
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LLMClient *llm.Client
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Model string
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FirecrawlAPIKey string
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}
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func buildTrackerMappingAgent(
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cfg TrackerMappingConfig,
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pgClient *pg.Client,
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logger *log.Logger,
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) *agent.Agent {
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tools := []agent.Tool{
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searchTrackerPatternsTool(pgClient),
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searchThirdPartiesTool(pgClient),
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}
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if cfg.FirecrawlAPIKey != "" {
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tools = append(tools, search.FirecrawlSearchTool(cfg.FirecrawlAPIKey))
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}
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outputType, err := agent.NewOutputType[TrackerMappingAgentResult]("tracker_identification")
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if err != nil {
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panic(fmt.Sprintf("cookiebanner: cannot build tracker identification output type: %s", err))
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}
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return agent.New(
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"tracker-mapping",
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cfg.LLMClient,
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agent.WithInstructionsFunc(trackerMappingInstructions),
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agent.WithModel(cfg.Model),
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agent.WithTools(tools...),
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agent.WithOutputType(outputType),
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agent.WithMaxTurns(agentMaxTurns),
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agent.WithLogger(logger),
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)
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}
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func trackerMappingInstructions(_ context.Context, _ *agent.Agent) string {
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categories := coredata.ThirdPartyCategories()
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parts := make([]string, len(categories))
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for i, c := range categories {
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parts[i] = string(c)
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}
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return strings.Replace(
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trackerIdentificationPrompt,
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"{{.Categories}}",
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strings.Join(parts, ", "),
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1,
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)
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}
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func buildAgentPrompt(tp coredata.TrackerPattern, domains []string) string {
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maxAge := "session"
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if tp.MaxAgeSeconds != nil {
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maxAge = fmt.Sprintf("%d seconds", *tp.MaxAgeSeconds)
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}
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prompt := fmt.Sprintf(
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"Identify the following tracker:\n\n"+
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"<pattern> %s </pattern>\n"+
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"<type> %s </type>\n"+
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"<match_type> %s </match_type>\n"+
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"<max_age> %s </max_age>\n",
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tp.Pattern,
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tp.TrackerType,
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tp.MatchType,
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maxAge,
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)
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if len(domains) > 0 {
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prompt += fmt.Sprintf("<observed_domains> %s </observed_domains>\n", strings.Join(domains, ", "))
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}
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return prompt
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}
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