dsh-ocr-seam-guard

dsh-ocr-seam-guard

Self-healing guard for the dsh-ocr plugin on
DeepSeek Harness: automatically re-applies the
local patches that npm i -g @deepseek-ai/dsh upgrades (or a plugin re-install) wipe out.

中文说明见下方。

What it guards

The dsh-ocr plugin needs three fixes that live OUTSIDE the profile (so profile reconcile never
touches them, and a harness upgrade wipes the adapter one):

Fix	File	Wiped by
The ocr service seam in the official dsh-llm-deepseek adapter	<dsh package>/node_modules/@deepseek-ai/dsh-llm-deepseek/lib/index.js	npm i -g @deepseek-ai/dsh upgrade
UTF-8 stdout enforcement for the Python OCR subprocess	<DSH_HOME>/profiles/node_modules/@deepseek-ai/dsh-ocr/lib/index.js	plugin re-install
rapidocr 1.2.3 API fix (text_det→text_detector, text_rec→text_recognizer)	<DSH_HOME>/profiles/node_modules/@deepseek-ai/dsh-ocr/tools/ocr_image.py	plugin re-install

How it works

On every harness boot the plugin checks the three sites. A missing fix is re-applied with anchored
string replacements — every anchor must match exactly once or the whole site is skipped (never a
partial patch) — then the patched module is import-verified in a child node process. A failed
verification rolls the file back and reports the error. If the upstream code shape is unknown
(anchors drifted), the guard does nothing but log.

When a fix is (re-)applied, the running process already holds the old module — restart dsh once
more to activate.

Install

dsh plugin --profile web add github:YOURNAME/dsh-ocr-seam-guard
# or from a local clone:
dsh plugin --profile web add file:D:/path/to/dsh-ocr-seam-guard

Restart dsh. The guard logs its status on every boot:

• adapter seam: ok — everything in place
• adapter seam: patched — just re-applied; restart once to activate
• adapter seam: skipped — upstream code drifted, human review needed

Upgrade flow

npm i -g @deepseek-ai/dsh   # upgrade wipes the adapter patch
restart dsh                 # guard auto-patches at boot (log: "restart once")
restart dsh again           # patch active

Configuration

Env var	Default	Purpose
DSH_OCR_ADAPTER_FILE	auto-detect (npm global root)	override the adapter file path

The adapter is located via npm root -g with a fallback to the platform npm global directory;
only npm-global dsh installs are supported out of the box.

License

MIT.