dsh-Context-Drawer
A DeepSeek Harness (DSH) plugin with exactly one job:
When the conversation context reaches a threshold (default 50% of the model window), move older messages into a folder associated with that conversation, then release the oldest finished turns from the model-visible context.
There is no UI, no button, no route, no memory bridge, no prompt injection. The chat transcript and the append-only session log are never modified — the released part is only invisible to the model, and the archive on disk always has it.
Behaviour
- Every turn, at the first step, the plugin estimates context usage (real provider usage when available, character estimate otherwise).
- When usage reaches
thresholdRatio (default 0.5) of the model window:
- Append the messages newer than the last archive watermark to
{archiveDir}/{sessionShort}/{date}.md, fsync first;
- Only after the file is safely on disk, remove the oldest finished turns from the model-visible context with a surface
replace event.
The latest keepRecentTurns (default 6) turns are never touched, at most releaseMaxTurns (default 40) per pass, stopping near releaseTargetRatio (default 0.45).
- Session log and transcript remain complete; the archive file is plain Markdown you can open at any time.
- State lives in
~/.dsh/context-drawer/state/state.json (one watermark per session, prevents duplicates).
Where the files go
Default: ~/上下文存档/{sessionShort}/{YYYY-MM-DD}.md
sessionShort is the session id with the session- prefix removed, first 8 characters — one subfolder per conversation, so you can always tell which conversation a file belongs to.
Configuration (cordis.patch.yml)
- insert:
- id: context-drawer
name: dsh-context-drawer
config:
archiveDir: C:/deepseek/上下文存档 # optional; default ~/上下文存档
thresholdRatio: 0.5
Other optional fields: thresholdTokens (absolute token threshold), modelWindow (default 1048576),
charsPerToken, baselineTokens, keepRecentTurns, releaseMaxTurns, releaseTargetRatio,
format (md | jsonl | txt), includeRoles, minTextLength, maxEntryChars,
timeZone (default Asia/Shanghai), stateDir.
Install
From the DSH plugin market, search dsh-Context-Drawer and install, or:
dsh plugin --profile <profile> add dsh-context-drawer
Test
node test.mjs
Offline mock session: 10 finished turns → threshold → 20 archive entries + 8 released turns → second trigger only appends the new messages → non-first steps and low usage do nothing.
中文说明
只做一件事：上下文占用到达阈值（默认 50%）时，把更早的对话追加进「跟这个会话关联的外部文件夹」，落盘之后再把最旧的已结束轮次从模型可见上下文里移走。没有界面、没有按钮、不写记忆、不碰聊天记录原文。
默认存档位置 ~/上下文存档/{会话短号}/{日期}.md，一个会话一个文件夹；状态在 ~/.dsh/context-drawer/state/state.json。最近 6 轮永远保留，单次最多释放 40 轮。
MIT License.
