Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Let AI agents see and interact with terminal/CLI apps via PNG screenshots
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We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
DEFAULT_COLS, DEFAULT_ROWS, IDLE_TIMEOUT_MSYou need
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"can-see": {
"command": "npx",
"args": [
"-y",
"can-see"
],
"env": {
"DEFAULT_COLS": "your-value",
"DEFAULT_ROWS": "your-value",
"IDLE_TIMEOUT_MS": "your-value"
}
}
}
}Run this in your terminal
claude mcp add can-see --env DEFAULT_COLS=your-value --env DEFAULT_ROWS=your-value --env IDLE_TIMEOUT_MS=your-value -- npx -y can-seeFill in the empty values before running it.
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"can-see": {
"command": "npx",
"args": [
"-y",
"can-see"
],
"env": {
"DEFAULT_COLS": "your-value",
"DEFAULT_ROWS": "your-value",
"IDLE_TIMEOUT_MS": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"can-see": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"can-see"
],
"env": {
"DEFAULT_COLS": "your-value",
"DEFAULT_ROWS": "your-value",
"IDLE_TIMEOUT_MS": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
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DEFAULT_COLS envDEFAULT_ROWS envIDLE_TIMEOUT_MS envThese settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Runs on your computer; the tool list appears in your AI app after you install it.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
The registry name was verified with the GitHub account HurleySk, which owns the repo
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
This one runs on your computer; there is no internet endpoint
Runs on your computer and uses local settings instead
Runs on your computer; we can only read tool lists from internet endpoints
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
The GitHub repo last changed –, and the latest version (0.4.0) reached the registry 7 months ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.
In the same category: Spec Driven Development, Remote Desktop Commander, SwarmMemo
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Talk with agent swarms: rooms, private messages and paid tasks for AI agents
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
MCP server that lets AI agents see and interact with terminal/CLI applications through virtual terminals and PNG screenshots.
Built for Claude Code and any MCP-compatible agent.
Some things are easier to show than describe. When debugging a TUI app, an interactive CLI wizard, or anything with visual terminal output, can-see lets the agent see exactly what you see — colors, layout, cursor position, and all.
npm install -g can-see
can-see depends on node-canvas (Cairo) and node-pty, which require native compilation. Most systems will need:
npm install --global windows-build-tools or install from Visual Studio Installerxcode-select --installsudo apt install build-essential libcairo2-dev libjpeg-dev libpango1.0-dev libgif-dev librsvg2-devAdd to your project's .mcp.json:
{
"mcpServers": { "can-see": { "command": "npx", "args": ["-y", "can-see"] } } }
Or if installed globally:
{
"mcpServers": { "can-see": { "command": "can-see" } } }
can-see uses stdio transport. Point your MCP client at the can-see binary or npx -y can-see.
| Tool | Description |
|---|---|
launch | Start a CLI app in a virtual terminal. Returns a sessionId. Accepts optional env to set environment variables. |
screenshot | Capture the terminal as a PNG image. |
screenshot_region | Capture a specific rectangular area of the terminal. |
screenshot_text_region | Find text in the viewport and capture the surrounding area as a PNG. |
capture_baseline | Snapshot terminal state for later diff comparison. |
diff_screenshot | Compare current state against baseline with highlighted changes. |
get_cell_info | Query character, colors, and attributes at specific cell(s). Supports compact mode for reduced output. |
read_text | Read the terminal buffer as plain text. |
read_scrollback | Read text that scrolled above the visible viewport. |
wait_for_text | Wait until specific text appears in the terminal buffer. |
wait_for_idle | Wait until terminal output has been stable for a given duration. Supports stableMs for content-comparison mode (for apps with timers/spinners), excludeRows to ignore specific rows, and excludePattern (regex) for dynamic row exclusion. |
wait_for_color | Wait until a specific color appears at a position. |
wait_for_exit | Wait until the process exits and return its exit code and signal. |
start_recording | Begin capturing frames for an animated GIF. |
stop_recording | Stop recording and return the animated GIF with metadata (frameCount, durationMs). Auto-trims frames or saves to file if GIF exceeds inline size limit. |
send_keys | Send keystrokes (e.g., Enter, Ctrl+C, ['Down', 'Down', 'Enter']). |
send_text | Type a string of text into the app. |
get_process_status | Get process status — distinguish "app is idle" from "app has exited". Returns PID, running state, exit code. |
list_sessions | List all active terminal sessions. |
close | Kill the app and clean up. Always close when done. |
close_all | Kill all active sessions at once. Useful for cleanup between test runs. |
Enter, Tab, Escape, Backspace, Space, Up, Down, Left, Right, Home, End, Delete, PageUp, PageDown, Ctrl+A through Ctrl+Z.
| Variable | Default | Description |
|---|---|---|
DEFAULT_COLS | 120 | Terminal width in columns |
DEFAULT_ROWS | 30 | Terminal height in rows |
IDLE_TIMEOUT_MS | 300000 | Auto-close idle sessions after this many ms (5 min) |
From an MCP-connected agent:
Agent: I'll launch your app to see what's happening.
→ launch("node", ["app.js"]) → sessionId: "abc-123"
Agent: Let me wait for the app to start. → wait_for_text("abc-123", "Ready") → Found "Ready" after 1200ms
Agent: Let me read the current output. → read_text("abc-123") → "Welcome to MyApp\nReady\n> "
Agent: I can see the prompt. Let me select option 2. → send_keys("abc-123", ["Down", "Enter"])
Agent: Waiting for the screen to settle. → wait_for_idle("abc-123") → Terminal idle for 520ms
Agent: Let me check the result. → screenshot("abc-123") → [PNG image showing result]
Agent: Done, closing the session. → close("abc-123")
New tools:
wait_for_exit — wait for process exit, get exit code and signalclose_all — kill all active sessions at onceget_process_status — distinguish "app is idle" from "app has exited"screenshot_text_region — find text in viewport, capture surrounding area as PNGEnhancements:
launch accepts env parameter for custom environment variableswait_for_idle supports excludePattern (regex) for dynamic row exclusion in stableMs modestop_recording returns frameCount and durationMs metadata alongside GIFget_cell_info supports compact option for reduced output ({char, fg, bold} only)Bug fixes:
wait_for_text and wait_for_color race condition where text/color present in the final buffer was missed when the process exited simultaneouslystableMs and idleMs are passed to wait_for_idleMIT