@kuanfu0430/dsh-compaction-tune

Adds a composer control for DeepSeek Harness automatic compaction: set a percent (30–80) or an absolute token threshold. The value is stored in $DSH_HOME/settings.yaml under kuanfu-compaction-tune and takes effect on the next agent step.

在 DeepSeek Harness 輸入框旁加入自動壓縮門檻控制：可設 百分比（30–80） 或 絕對 token 數。設定寫入 $DSH_HOME/settings.yaml 的 kuanfu-compaction-tune 分節，下一個 agent step 生效。

The planned listing for this repository is in docs/awesome-dsh-plugin.yml. Submit it to awesome-dsh-plugin only after the repo is at least one day old and has 10 or more commits.

本倉預定上架條目見 docs/awesome-dsh-plugin.yml。請等倉庫滿一天且提交數 ≥ 10 再向 awesome-dsh-plugin 發 PR。

What this is not / 這不是什麼

Official @deepseek-ai/dsh-compaction-basic already has a static thresholdRatio (default 0.8) in plugin YAML. There is no in-conversation control for that field. This plugin is the live UI / settings-backed policy; it does not replace the compaction engine and does not register /compact.

官方 @deepseek-ai/dsh-compaction-basic 已有插件 YAML 裡的靜態 thresholdRatio（預設 0.8），但沒有對話中可調的控制。本插件是即時 UI／settings 政策，不取代壓縮引擎，也不註冊 /compact。

Install / 安裝

Tested on DeepSeek Harness 0.1.1-rc.2. Not claimed compatible with 0.1.2-alpha (conversation slots and the web token gate changed).

已在 DeepSeek Harness 0.1.1-rc.2 驗證。不宣稱相容 0.1.2-alpha（會話 slot 與 Web token 閘門已變）。

dsh plugin --profile web add github:kuanfu0430/dsh-compaction-tune

Restart dsh web. The chip appears at conversation.input.right (composer, lower right).

重啟 dsh web。控件掛在 conversation.input.right（輸入框右下）。

The root package.json declares dsh.bundle.patch plus cordis.patch.yml, so dsh plugin add can install it. There is no build step.

根目錄 package.json 已宣告 dsh.bundle.patch 與 cordis.patch.yml，可直接用 dsh plugin add 安裝，無需編譯。

Behaviour / 行為

• Percent mode defaults to 60%, range 30–80%.
• Token mode defaults to 128k, range 64k–832k, step 64k.
• Host-plane service kuanfuCompactionPolicy.resolve(session) returns frozen { mode, percent, tokens }. Child sessions with parentSession set, origin !== 'subagent', and seedLength === 0 (for example a sidebar branch) get null; those sessions keep the backend 80% default.
• Official backend (@deepseek-ai/dsh-compaction-basic): when used tokens cross the effective threshold below the 80% safety cap, this plugin calls compactIfNeeded(agent, 'context-overflow'). The overflow trigger is required because the official pressure listener still gates on 80%. If the effective threshold is already at the 80% cap, this plugin does not fire and the official listener remains the only trigger.
• Optional anchored backend (@kuanfu0430/dsh-compaction-anchored): if that backend is loaded, this plugin does not register a second trigger. It only exposes the policy service for the anchored engine to read.
• Token thresholds above 80% of the current model window are capped in both the UI and the official fallback trigger.
• Host routes under /compaction-tune/api/* are limited to loopback / the profile trust fence. Responses contain settings, token/window metadata, backend identity, and compaction status — not message content or credentials.

Limits / 限制

• Installing only this plugin does not add a compaction engine. The web profile already ships compaction-basic; without any ctx.compaction, the chip still saves settings but shows that no backend is available.
• Percent mode does nothing until the routed model’s context window can be resolved.
• Child sessions described above never inherit the main-chat threshold.
• The composer slot conversation.input.right is a 0.1.1-rc.2 contract. If a later DSH build removes that slot, the chip will not mount.

Development / 開發

node --check index.js client.js
node ./test.mjs

License

MIT