notes: 跨会话检索 4 类方案卡

[joyehuang]

grep 脚本/sessiongrep/向量/mem0 四类对比 / recall 问题不是语义搜索问题（及后来的修正）/ CLI+扩展双层选择。

止步 PR 不合并。bun run check 0 errors。

---

Summary by cubic

Adds a research note on cross-session retrieval approaches and fixes a TypeScript cast in SiteStats.astro.

The note compares 4 solution categories (grep scripts, SQLite+FTS5, vector search, built-in memory layers) and records the conclusion that most cross-session queries are recall problems, not semantic search problems. The chosen architecture is SQLite+FTS5 with a custom pi adapter, delivered as a CLI plus extension dual-layer.

Bug Fixes

• Casts the Neon query result type in SiteStats.astro so branches cut from main pass checks.

^{Written for commit 5411562. Summary will update on new commits.}

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Project	Deployment	Actions	Updated
blog	Ready	Preview	Sep 1, 2026 6:32pm UTC

[cubic-dev-ai]

1 issue found across 2 files

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="src/content/notes/0926-session-search-approaches.md">

<violation number="1" location="src/content/notes/0926-session-search-approaches.md:4">
P3: This is the only note without an English mirror (xxx.en.md). Every other note in the collection ships one, feeding the notesEn collection and /en/notes routes, so this research note will be invisible to English readers. Add a paired .en.md translation for consistency with the rest of the collection.</violation>
</file>

<sub>Reply with feedback, questions, or to request a fix.

Re-trigger cubic</sub>

[cubic-dev-ai]

P3: This is the only note without an English mirror (xxx.en.md). Every other note in the collection ships one, feeding the notesEn collection and /en/notes routes, so this research note will be invisible to English readers. Add a paired .en.md translation for consistency with the rest of the collection.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At src/content/notes/0926-session-search-approaches.md, line 4:

<comment>This is the only note without an English mirror (xxx.en.md). Every other note in the collection ships one, feeding the notesEn collection and /en/notes routes, so this research note will be invisible to English readers. Add a paired .en.md translation for consistency with the rest of the collection.</comment>

<file context>
@@ -0,0 +1,66 @@
+---
+title: 跨会话检索的 4 类方案：recall 问题不是语义搜索问题
+description: 自建 session search 前的完整方案调研——grep 脚本 / SQLite+FTS5 索引 / 向量语义检索 / 内置记忆层四类的代表项目、优劣与取舍；核心判断：「大多数查询不是语义搜索问题，是 recall 问题」；以及 CLI + 扩展双层的最终选择理由。
+date: 2026-09-02
+updatedDate: 2026-09-02
+tags:
</file context>