@comecaramelos/dsh-collapse-multiline-paste

DSH plugin: when you paste multiline text into the Web GUI chat box, the pasted block collapses in place to one inline pill — X chars / Y lines — styled and handled exactly like selecting a file with @: the same 22px pill, tokens, ellipsis and keyboard-atomic deletion. Click the pill to expand (and re-collapse) the block. The input stays visually clean; the full text is sent to the model unchanged.

How it works

The composer is a Lexical plain-text editor and DSH's paste pipeline commits the text first. The plugin only reacts:

1. a document-level paste listener snapshots the clipboard text and the pre-paste draft (never consumes the event);
2. once the composer settles (MutationObserver quiet), a prefix/suffix diff maps the insertion onto the document's text leaves;
3. the folded run stays in the document — its leaves are hidden in place with the state-level style display:none — and one inline chip node marks it, riding the draft right where the @file chip does;
4. a click folds/reveals the run; Backspace/Delete with the caret adjacent removes the whole pill in one keystroke (the @ chip semantics); editing the hidden text expands it;

A registered inline decorator that contributes no text is a no-op for DSH's draft projection, and text hidden in place still projects exactly what was pasted — so what is submitted, what persists, and what the / and @ trigger pipeline see stays byte-identical to a stock paste. If anything goes wrong the plugin disposes itself and the composer behaves stock (fail-open).

Install

Local sources link only in the plugin-dev profile (the live web profile takes npm packages only).

dsh plugin --profile plugin-dev add link:/home/roberto/dev/dsh/dsh-collapse-multiline-paste

then restart the plugin-dev host.

Uninstall:

dsh plugin --profile plugin-dev remove @comecaramelos/dsh-collapse-multiline-paste

(+ restart).

Settings

Settings → Plugins → Plugin configuration → "Collapse multiline paste":

| Field | Default | Meaning | |---|---|---| | active | true | Master switch. Off → stock behaviour. | | minLines | 3 | Pasted text with at least this many lines collapses (1–100). | | minChars | 0 | Additionally require this many characters. 0 = lines only. |

Changes apply to the next paste. The collapse state itself is visual and per-session: a reloaded session restores the plain draft.

Behaviour notes

• A paste landing right against an existing collapsed run folds INTO it — touching runs merge into a single pill, never two side by side.
• Undo (or any external removal of the pill) just un-collapses: no hidden text is ever left stranded.
• Pasting files is unaffected (DSH attachment pipeline).

Develop

TypeScript sources under src/; lib/** is build output.

npm install
npm run build     # host: tsc → lib/{index,core,host}/*.js + client: tsc check + esbuild → lib/client.js
npm test          # builds, then node --test: core units + bundle wiring + inline-chip engine

The pure DOM-free core lives in src/core.ts: tsc emits it to lib/core.js for the node tests, and esbuild inlines the same source into the browser bundle — one source of truth, no drift possible. See docs/INLINE-CHIP.md for the chip design, docs/PLAN.md for the verified architecture and AGENTS.md for the hard constraints.