Files
2026-07-13 13:00:08 +08:00

78 lines
2.0 KiB
Go

package evidence
import "sort"
// ChildEvidenceSummary is the ordered, host-observable evidence a sub-agent
// produced. Parents merge these receipts so delegated writes, reads, commands,
// verifications, and structured reviews count toward delivery gates without
// treating the meta tool call itself as a mutation.
type ChildEvidenceSummary struct {
Receipts []Receipt
}
// HasMutation reports whether any successful receipt is a real state change.
func (s ChildEvidenceSummary) HasMutation() bool {
for _, r := range s.Receipts {
if r.Success && r.Mutation {
return true
}
}
return false
}
// MutationPaths returns distinct production paths written by the child.
func (s ChildEvidenceSummary) MutationPaths() []string {
seen := map[string]bool{}
var out []string
for _, r := range s.Receipts {
if !r.Success || !r.Mutation {
continue
}
for _, p := range r.Paths {
if p == "" || seen[p] {
continue
}
seen[p] = true
out = append(out, p)
}
}
sort.Strings(out)
return out
}
// Summary returns a snapshot of every receipt recorded this turn in order.
func (l *Ledger) Summary() ChildEvidenceSummary {
if l == nil {
return ChildEvidenceSummary{}
}
l.mu.Lock()
defer l.mu.Unlock()
out := make([]Receipt, len(l.receipts))
copy(out, l.receipts)
return ChildEvidenceSummary{Receipts: out}
}
// MergeChild appends successful child receipts into the parent ledger. Failed
// child receipts are retained for auditability with Success=false so they never
// satisfy host matchers.
func (l *Ledger) MergeChild(summary ChildEvidenceSummary) {
if l == nil || len(summary.Receipts) == 0 {
return
}
for _, r := range summary.Receipts {
// Drop nested bookkeeping that the parent already owns.
switch r.ToolName {
case "todo_write", "complete_step", "ask":
continue
}
l.Record(r)
}
}
// MergeChildren merges multiple child summaries in the given order.
func (l *Ledger) MergeChildren(summaries ...ChildEvidenceSummary) {
for _, s := range summaries {
l.MergeChild(s)
}
}