dsh-plugin-send-image

Lets the agent put a picture into the conversation. A screenshot, the clipboard, or a file — the host normalizes and persists the bytes, every DSH client renders it inline, and the user can open it full screen.

Why a plugin is needed at all: DSH's model adapters declare text-only output, so the agent cannot emit an image in its answer, and the attachment service is read-only for clients. The one channel that carries bytes in is a prompt, and that is what this plugin uses — into the session that is already talking.

plugins/send-image/
├── package.json          # type: module, dsh.bundle.patch
├── cordis.patch.yml      # bundle patch: the loader row
├── lib/index.js          # cordis plugin: registers the send_image tool
└── test/                 # node --test, 14 tests (no DSH, no network)

The tool is a thin, testable shell around skills/send-image/send-image.mjs, which does the actual capture and upload. That script also works standalone, so the same capability is available with the plugin uninstalled:

node skills/send-image/send-image.mjs --screenshot
node skills/send-image/send-image.mjs --file ./out/render.png --caption "渲染结果"
node skills/send-image/send-image.mjs --clipboard        # needs pngpaste

Install

dsh plugin --profile web add dsh-plugin-send-image

Then restart DSH (or reload the profile). From a checkout a relative spec works too — the leading ./ matters, because DSH anchors it against your current directory instead of resolving it inside the profile:

dsh plugin --profile web add ./plugins/send-image

Use

The agent calls send_image. Exactly one source per call:

Argument	Meaning
file	Path to an image (absolute, or relative to the working directory)
screenshot	true captures the whole screen — the picture contains everything on it
clipboard	true sends the image on the clipboard (needs pngpaste)
caption	Text shown with the picture

Passing none or several is a readable tool error rather than a schema failure: source exclusivity is a runtime rule here, so the model is told what to fix.

Test

cd plugins/send-image && npm test    # 14 tests, zero dependencies

MIT.