diff --git a/internal/project/user_verbatim_anchor.go b/internal/project/user_verbatim_anchor.go
deleted file mode 100644
index bed7676f..00000000
--- a/internal/project/user_verbatim_anchor.go
+++ /dev/null
@@ -1,170 +0,0 @@
-package project
-
-import (
-	"fmt"
-	"strings"
-
-	"cyberstrike-ai/internal/database"
-
-	"github.com/cloudwego/eino/adk"
-	"github.com/cloudwego/eino/schema"
-)
-
-const (
-	// UserVerbatimSectionHeading 用户原文锚点可读标题（块内保留，供 Agent 阅读）。
-	UserVerbatimSectionHeading = "## 用户历史输入（原文保留，勿省略或改写）"
-
-	// UserVerbatimSectionStartMarker / EndMarker：HTML 注释边界，供程序化替换；对模型无指令语义。
-	UserVerbatimSectionStartMarker = "<!-- user-verbatim-start -->"
-	UserVerbatimSectionEndMarker   = "<!-- user-verbatim-end -->"
-)
-
-// ExtractUserContentsFromMessages 按时间顺序提取 user 角色消息的原文（跳过空白）。
-func ExtractUserContentsFromMessages(msgs []database.Message) []string {
-	out := make([]string, 0, len(msgs))
-	for i := range msgs {
-		if !strings.EqualFold(strings.TrimSpace(msgs[i].Role), "user") {
-			continue
-		}
-		content := strings.TrimSpace(msgs[i].Content)
-		if content == "" {
-			continue
-		}
-		out = append(out, content)
-	}
-	return out
-}
-
-// BuildUserVerbatimAnchorBlockFromMessages 从 messages 表行构建用户原文锚点块。
-// maxRunes: 0 = 不截断；>0 = 总 rune 上限（仍保留每一轮，仅对超长单条做尾部截断提示）。
-func BuildUserVerbatimAnchorBlockFromMessages(msgs []database.Message, maxRunes int) string {
-	return BuildUserVerbatimAnchorBlock(ExtractUserContentsFromMessages(msgs), maxRunes)
-}
-
-// BuildUserVerbatimAnchorBlock 将各轮用户原文格式化为 system prompt 锚点块。
-func BuildUserVerbatimAnchorBlock(userContents []string, maxRunes int) string {
-	if len(userContents) == 0 {
-		return ""
-	}
-	lines := make([]string, 0, len(userContents))
-	for _, content := range userContents {
-		content = strings.TrimSpace(content)
-		if content == "" {
-			continue
-		}
-		lines = append(lines, fmt.Sprintf("[第%d轮] %s", len(lines)+1, content))
-	}
-	if len(lines) == 0 {
-		return ""
-	}
-	body := strings.Join(lines, "\n")
-	if maxRunes > 0 {
-		body = capUserVerbatimBody(body, maxRunes)
-	}
-	return wrapUserVerbatimBlock(UserVerbatimSectionHeading + "\n\n" + body)
-}
-
-func capUserVerbatimBody(body string, maxRunes int) string {
-	rs := []rune(body)
-	if len(rs) <= maxRunes {
-		return body
-	}
-	suffix := "\n\n...(用户原文锚点已达配置上限，更早轮次可能被截断；完整原文见 messages 表)..."
-	suffixRunes := []rune(suffix)
-	keep := maxRunes - len(suffixRunes)
-	if keep <= 0 {
-		return string(rs[:maxRunes])
-	}
-	return string(rs[:keep]) + suffix
-}
-
-func wrapUserVerbatimBlock(content string) string {
-	content = strings.TrimSpace(content)
-	if content == "" {
-		return ""
-	}
-	return UserVerbatimSectionStartMarker + "\n" + content + "\n" + UserVerbatimSectionEndMarker + "\n"
-}
-
-// ReplaceUserVerbatimAnchorSection 用 freshBlock 替换 content 中已有的用户原文锚点段。
-func ReplaceUserVerbatimAnchorSection(content, freshBlock string) (string, bool) {
-	content = strings.TrimSpace(content)
-	freshBlock = strings.TrimSpace(freshBlock)
-	if freshBlock == "" {
-		return content, false
-	}
-	start, ok := userVerbatimSectionStart(content)
-	if !ok {
-		return content, false
-	}
-	end, ok := userVerbatimSectionEnd(content, start)
-	if !ok {
-		return content, false
-	}
-	return strings.TrimSpace(content[:start] + freshBlock + content[end:]), true
-}
-
-func userVerbatimSectionStart(content string) (int, bool) {
-	idx := strings.Index(content, UserVerbatimSectionStartMarker)
-	if idx < 0 {
-		return 0, false
-	}
-	return idx, true
-}
-
-func userVerbatimSectionEnd(content string, start int) (int, bool) {
-	if start < 0 || start >= len(content) {
-		return 0, false
-	}
-	tail := content[start:]
-	idx := strings.LastIndex(tail, UserVerbatimSectionEndMarker)
-	if idx < 0 {
-		return 0, false
-	}
-	return start + idx + len(UserVerbatimSectionEndMarker), true
-}
-
-// RefreshUserVerbatimAnchorInMessages 在 summarization 等压缩后，用 freshBlock 刷新 system 中的用户原文锚点。
-// 若尚无锚点段，则追加到首条 system 消息；若无 system 消息则在开头插入一条。
-func RefreshUserVerbatimAnchorInMessages(msgs []adk.Message, freshBlock string) []adk.Message {
-	freshBlock = strings.TrimSpace(freshBlock)
-	if freshBlock == "" || len(msgs) == 0 {
-		return msgs
-	}
-
-	out := make([]adk.Message, len(msgs))
-	changed := false
-	for i, msg := range msgs {
-		if msg == nil || msg.Role != schema.System {
-			out[i] = msg
-			continue
-		}
-		newContent, ok := ReplaceUserVerbatimAnchorSection(msg.Content, freshBlock)
-		if !ok {
-			out[i] = msg
-			continue
-		}
-		cloned := *msg
-		cloned.Content = newContent
-		out[i] = &cloned
-		changed = true
-	}
-
-	if changed {
-		return out
-	}
-
-	for i, msg := range msgs {
-		if msg == nil || msg.Role != schema.System {
-			continue
-		}
-		cloned := *msg
-		cloned.Content = AppendSystemPromptBlock(cloned.Content, freshBlock)
-		out[i] = &cloned
-		return out
-	}
-
-	prefix := make([]adk.Message, 0, len(msgs)+1)
-	prefix = append(prefix, schema.SystemMessage(freshBlock))
-	return append(prefix, msgs...)
-}