FlashAnchor / 闪电锚点

A DSH Web GUI plugin that searches the entire stored corpus of every session: assistant reasoning, answer text, tool calls and results, output files, user prompts, and input files. Clicking a hit jumps to the block that contains it (paragraph, code fence, file card, or tool card), expands folded disclosures, and highlights only that block.

Features

• Block anchors: every result carries {turn, step, messageId, toolCallId, blockIndex, seatIndex, blockKind, chunk}; the client computes the chat node key instead of guessing from text.
• Sharded Worker pool: the thread slider (1-8) selects the number of worker_threads; each worker owns a slice of the corpus. A worker crash or OOM (256 MB heap cap) degrades to the single-threaded scan.
• Materialized views: saved searches persist only result IDs, per-session sequence snapshots, and page metadata (no body text). Pages are rebuilt from the document index; history and snapshots share one id, so deleting a row drops the snapshot and its in-memory page. LRU cap: 50.
• Near-memory search: an identical query signature returns from memory for 60 s and aborts an in-flight request.
• Session scope: search all sessions or one session; the selection can be cleared. Query already matches file names, so there is no separate suffix filter.
• Appearance: adjustable frosted-glass blur/density, persisted locally.

Install

From this directory:

node --check index.js
node test-core.mjs
$env:npm_config_cache = "$PWD/.npm-cache"
npm pack
# install the resulting flash-anchor-*.tgz into your DSH profile's node_modules
# and add flash-anchor to the profile bundle list, then restart DSH Desktop

The Host half needs a DSH restart (the client bundle reloads with the page).

Architecture

File	Role
index.js	Host plugin: session surface index, search, materialized views, state
search-core.js	Shared matching/scoring/snippet + doc address
search-pool.js	Worker pool, sharding, OOM/timeout degradation
worker.js	One corpus shard, scans on request
client.js	Dialog, settings, results deck, scroll router
locale/*.json	UI dictionaries

All indexing stays on the local Host. The plugin never sends queries or session content to a network service, contains no API keys, and writes its index under $DSH_HOME/flash-anchor/.

Tests

node test-core.mjs
node test-state.mjs
node test-prefs.mjs
node test-order.mjs
node test-worker.mjs
node --expose-gc test-memory.mjs
node test-locate.mjs
node test-anchor.mjs      # skips when no session store is present
node test-stress.mjs

Development

Designed and implemented by DeepSeek-V4.1-Flash-1017, an AI coding agent running in DeepSeek Harness, for BR-PC. Product direction, review, and acceptance testing were done by BR-PC. The repository contains only plugin source and tests; no session data or credentials.

License

MIT. See LICENSE.