release: 0.23.0 — Wikipedia keyword ladder (#90)

Author: askalf

CHANGELOG.md

@@ -6,6 +6,17 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 
 ## [Unreleased]
 
+## [0.23.0] - 2026-06-12
+
+### Added — Wikipedia keyword ladder (the fallback actually lands now)
+
+- **Zero-result Wikipedia queries retry with progressively shorter keyword variants** (4 → 2 → 1 leading content tokens; new pure `src/query-keywords.ts` drops stopwords and generic instruction words while keeping technical tokens like `HTTP/3`, `php-fpm`, `fastcgi_buffer_size` intact). MediaWiki search matches article titles/text and returned zero for the planner's long natural-language queries — which hollowed out wikipedia exactly where it matters most: as the default fallback when the primary backend is rate-limited. Both stress benches died on this exact gap. At most 3 extra keyless API calls, only on the would-have-been-empty path; verbatim hits are untouched. Applies to all wikipedia usage (direct, `multi:` sub-adapter, fallback). New exports: `extractKeywords`, `keywordLadder`.
+- Checked in: the 2026-06-12 healthy-DDG bench scoreboard (4/6 PASS at v0.22.0 — the two failures were this gap; DDG re-throttled mid-bench and the un-laddered fallback came back empty).
+
+### Upstream note
+
+- The morning's "planner did not return JSON" failures on default runs were **not** a deepdive bug: an upstream serving-side shift made `claude-sonnet-4-6` ignore client system prompts bare-appended after dario's CC persona. Fixed in dario **4.8.66** (`CLIENT_SYSTEM_PREFACE` precedence framing). deepdive users on dario should upgrade: `npm i -g @askalf/dario`.
+
 ## [0.22.0] - 2026-06-11
 
 ### Changed — search fallback defaults ON (`wikipedia`)

README.md

@@ -463,12 +463,12 @@ One command, aggregated health report. Paste the output when filing issues.
 
 ```bash
 $ deepdive doctor
-deepdive doctor — v0.22.0
+deepdive doctor — v0.23.0
 
 # environment
   OK  Node        v22.21.1
   --- Platform    win32 x64
-  --- deepdive    v0.22.0
+  --- deepdive    v0.23.0
 
 # cache
   --- dir         ~/.deepdive/cache

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@askalf/deepdive",
-  "version": "0.22.0",
+  "version": "0.23.0",
   "description": "A local research agent. One command, cited answer. Routes every LLM call through your own proxy (dario, Anthropic-compat, OpenAI-compat). Headless browser + pluggable search + multi-provider LLM — zero hosted dependencies.",
   "type": "module",
   "bin": {