Waleed 5acdaeea02 feat(rich-md-editor): table row/col toolbar, raw HTML/footnote support, paste fidelity (#5438)
* feat(rich-md-editor): table row/col toolbar, raw HTML/footnote support, paste fidelity

- Add a table toolbar (add/delete row, add/delete column, toggle header, delete table) wired to stock @tiptap/extension-table commands
- Add verbatim snippet nodes for raw HTML blocks, HTML comments, footnotes (def + ref), and inline raw HTML tags — these no longer force the whole document read-only, and the raw source is directly editable in place
- Fix an upstream @tiptap/markdown footgun found while building this: a custom tokenizer with no explicit `start` callback corrupts the shared lexer and silently drops unrelated content elsewhere in the document
- Prefer the markdown parser over generic HTML→DOM paste mapping when the plaintext clipboard side looks like markdown, even if an HTML sibling is present
- Fix a stale select-all selection surviving a stream-settle content replace, which permanently highlighted every divider/image after a file regeneration

* fix(rich-md-editor): address review findings from initial PR round

- Collapse the stream-settle selection unconditionally, not only when setContent re-runs — the last streaming tick already syncs lastSyncedBodyRef to the final body, so the fix was previously skipped in the common streamed-content case (Cursor Bugbot)
- Support GFM footnote definition continuation lines (>=4-space indented, with blank lines between paragraphs) instead of truncating to just the opening line (Greptile P1)
- Fix the inline raw-HTML tokenizer to find the balanced closing tag by tracking nesting depth, instead of matching the first same-name closing tag — fixes corruption on nested same-tag elements like <span>outer <span>inner</span></span> (Greptile P1)
- Stop caching the table toolbar's anchor rect by selection key — the same cell can move on screen from scrolling alone with no selection change, and the cached rect went stale (Greptile P2)

* fix(rich-md-editor): fix CI type errors in raw-markdown-snippet.tsx

- parseMarkdown callbacks returned null on no-match, which @tiptap/core's MarkdownParseResult type doesn't permit — switch to returning [] (empty array), matching the same no-match convention MarkdownCodeBlock already uses, with identical runtime behavior
- Pin NodeViewContent's generic to 'span' (NodeViewContent<'span'> as='span'), since it defaults to 'div' and rejects other `as` values without an explicit type argument

Verified with a full `tsc --noEmit` (NODE_OPTIONS=--max-old-space-size=8192, matching CI) — 0 errors, where it previously failed the Next.js build's type-check step.
2026-07-06 12:20:58 -07:00

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Sim — Integrate, Context, Build, and Monitor AI agents

A workspace to build, deploy and manage AI agents and workflows.

Quickstart

Cloud-hosted: sim.ai

Open sim.ai

Self-hosted

npx simstudio

Open http://localhost:3000

Docker must be installed and running. Use -p, --port <port> to run Sim on a different port, or --no-pull to skip pulling the latest Docker images.

The Sim platform — chat on the left, the visual workflow builder on the right

Capabilities

  • Connect 1,000+ integrations and every major LLM
  • Add Slack, Notion, HubSpot, Salesforce, databases, and more
  • Build agents visually, conversationally, or with code
  • Ingest files, knowledge bases, and structured table data
  • Monitor runs, logs, schedules, and workflow activity

One workspace, every surface

Chat and workflows are just the start — tables, files, knowledge, and scheduled tasks all live in the same workspace.

Tables in Sim — structured data your agents can query

Tables — a database, built in

Files in Sim — documents for your team and every agent

Files — one store for your team and every agent

Knowledge bases in Sim — synced docs your agents can search

Knowledge — your agents' memory

Scheduled tasks in Sim — recurring agent runs on a calendar

Scheduled tasks — runs on your schedule

Self-hosting

Docker Compose

git clone https://github.com/simstudioai/sim.git && cd sim
docker compose -f docker-compose.prod.yml up -d

Open http://localhost:3000

Sim also supports local models via Ollama and vLLM. See the Docker self-hosting docs for setup details.

Manual Setup

Requirements: Bun, Node.js v20+, PostgreSQL 12+ with pgvector

  1. Clone and install:
git clone https://github.com/simstudioai/sim.git
cd sim
bun install
bun run prepare  # Set up pre-commit hooks
  1. Set up PostgreSQL with pgvector:
docker run --name simstudio-db -e POSTGRES_PASSWORD=your_password -e POSTGRES_DB=simstudio -p 5432:5432 -d pgvector/pgvector:pg17

Or install manually via the pgvector guide.

  1. Configure environment:
cp apps/sim/.env.example apps/sim/.env
# Create your secrets
perl -i -pe "s/your_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_internal_api_secret/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_api_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
# DB configs for migration
cp packages/db/.env.example packages/db/.env
# Edit both .env files to set DATABASE_URL="postgresql://postgres:your_password@localhost:5432/simstudio"
  1. Run migrations:
cd packages/db && bun run db:migrate
  1. Start development servers:
bun run dev:full  # Starts Next.js app and realtime socket server

Or run separately: bun run dev (Next.js) and cd apps/sim && bun run dev:sockets (realtime).

Chat API Keys

Chat is a Sim-managed service. To use Chat on a self-hosted instance:

  • Go to https://sim.ai → Settings → Chat keys and generate a Chat API key
  • Set COPILOT_API_KEY environment variable in your self-hosted apps/sim/.env file to that value

Environment Variables

See the environment variables reference for the full list, or apps/sim/.env.example for defaults.

Tech Stack

Next.js · Bun · PostgreSQL · Drizzle · Better Auth · Tailwind — and the rest of the stack

Contributing

We welcome contributions! Please see our Contributing Guide for details.

License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.

Built by the Sim team in San Francisco

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