96 lines
2.9 KiB
Go
96 lines
2.9 KiB
Go
package control
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import (
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"context"
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"encoding/json"
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"fmt"
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"strings"
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"reasonix/internal/event"
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"reasonix/internal/nilutil"
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"reasonix/internal/provider"
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)
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const autoPlanClassifierPrompt = `You classify whether a coding-agent user request should first enter read-only planning mode.
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Return ONLY JSON: {"needs_plan":true|false,"reason":"short reason"}.
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Use true for multi-step implementation, refactors, migrations, unclear cross-file work, PRD/spec/issue work, or tasks needing investigation before edits.
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Use false for explanations, simple questions, single obvious edits, direct commands, or requests that should be answered without changing files.`
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type ProviderAutoPlanClassifier struct {
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prov provider.Provider
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pricing *provider.Pricing
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sink event.Sink
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}
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func NewProviderAutoPlanClassifier(prov provider.Provider) *ProviderAutoPlanClassifier {
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if nilutil.IsNil(prov) {
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return nil
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}
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return &ProviderAutoPlanClassifier{prov: prov}
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}
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func NewBillableProviderAutoPlanClassifier(prov provider.Provider, pricing *provider.Pricing, sink event.Sink) *ProviderAutoPlanClassifier {
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if nilutil.IsNil(prov) {
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return nil
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}
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if nilutil.IsNil(sink) {
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sink = event.Discard
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}
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return &ProviderAutoPlanClassifier{prov: prov, pricing: pricing, sink: sink}
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}
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func (c *ProviderAutoPlanClassifier) NeedsPlan(ctx context.Context, input string, score int) (bool, string, error) {
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if c == nil || nilutil.IsNil(c.prov) {
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return false, "", fmt.Errorf("auto plan classifier is not initialized")
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}
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ch, err := c.prov.Stream(ctx, provider.Request{
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Messages: []provider.Message{
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{Role: provider.RoleSystem, Content: autoPlanClassifierPrompt},
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{Role: provider.RoleUser, Content: fmt.Sprintf("heuristic_score=%d\n\nUSER_REQUEST:\n%s", score, input)},
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},
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Temperature: provider.TemperaturePtr(0),
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MaxTokens: 80,
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})
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if err != nil {
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return false, "", err
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}
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var text strings.Builder
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var usage *provider.Usage
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for chunk := range ch {
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switch chunk.Type {
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case provider.ChunkText:
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text.WriteString(chunk.Text)
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case provider.ChunkUsage:
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usage = chunk.Usage
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case provider.ChunkError:
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return false, "", chunk.Err
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}
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}
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if usage != nil && usage.TotalTokens > 0 && !nilutil.IsNil(c.sink) {
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c.sink.Emit(event.Event{Kind: event.Usage, Usage: usage, Pricing: c.pricing, UsageSource: event.UsageSourceClassifier})
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}
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var out struct {
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NeedsPlan *bool `json:"needs_plan"`
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Reason string `json:"reason"`
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}
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if err := json.Unmarshal([]byte(extractJSONObject(text.String())), &out); err != nil {
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return false, "", fmt.Errorf("decode classifier response: %w", err)
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}
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if out.NeedsPlan == nil {
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return false, "", fmt.Errorf("decode classifier response: missing needs_plan")
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}
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return *out.NeedsPlan, strings.TrimSpace(out.Reason), nil
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}
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func extractJSONObject(s string) string {
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s = strings.TrimSpace(s)
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start := strings.IndexByte(s, '{')
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end := strings.LastIndexByte(s, '}')
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if start >= 0 && end >= start {
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return s[start : end+1]
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}
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return s
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}
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