Baton

Run, hot-reload and screenshot Flutter, web, React Native and native iOS/Android apps.

Connector by kanumuri9593 · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)★ 1

Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/kanumuri9593-baton

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Run, hot-reload and screenshot Flutter, web, React Native and native iOS/Android apps.

Reviews

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Permissions

What this server can do and what it asks for, from its tool list, install config and code. Checked Oct 26, 2026.

Tools: 16 read · 8 write · 5 delete
Secrets: None asked for
Install scripts: None found
Runs as: Node.js package

Tools by what they do 29

Read from the source code; the running server may list different tools.

Read 16 · Look things up without changing anything.

diagnose
get_network_request
inspect_project
list_checkouts
list_devices
list_network_requests
list_proofs
list_run_history
list_sessions
list_targets
read_launch_config
read_logs

Show 4 more tools

screenshot
session_summary
show_dashboard
wait_for

Write 8 · Create, change, send or run things.

boot_device
check_change
hot_reload
hot_restart
run_proof
run_target
run_workflow
set_debug_flag

Delete 5 · Delete, drop, revoke or wipe things.

clear_network_requests
dashboard_action
forget_session
stop_session
write_launch_config

Network hosts it talks to 4

apple.com · found in code
code.visualstudio.com · found in code
github.com · found in code
kanumuri9593.github.io · found in code

Files it touches

/home/dev/af/projects/A/web-lab
/home/dev/af/projects/B/orders-api
/home/dev/af/projects/B/web-lab
/home/dev/tools/pw
/tmp/shot-B.png
/tmp/shot.png
Your home directory (~)
Any path the agent passes to its tools

Tools (29)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

boot_device
Boot an iOS simulator or Android emulator by name (e.g. "iPhone 17 Pro", "Pixel_8") or id, and wait until it is up. Returns the device id to pass to run_target as deviceId. Call with no name to list what can be booted.
check_change
After editing code: apply the change and return the evidence in one call, instead of hot_reload + wait_for + read_logs + list_network_requests + screenshot. action=auto hot reloads Flutter, leaves web and React Native to HMR / Fast Refresh, and restarts everything else. Answers ok/not ok with only what is new since the call began: reload result, error lines (for web, including the browser console), failed requests, and a screenshot. Prefer this as the default step after every edit.
clear_network_requestscan change or delete data
Forget every captured request for a session, in the daemon and in the app itself. Useful before reproducing one specific call.
dashboard_actionBaton card actioncan change or delete data
Used by the Baton card: refresh; catalog (projects and devices for New run); run a project target on a device; boot a device; logs, reload, restart, pause, resume, front, screenshot, stop or dismiss (forget a finished run) one session; or reload/restart/pause/resume/front/stop all. Returns the card state.
diagnoseread-only
Search bounded log and network evidence across projects. Defaults to errors only and 20 findings. Findings are grouped by session; repeats of the same error are counted once (×N), and a stack is collapsed to its first app frames. Pass a trace ID and errorsOnly=false to follow a request across Node services. Use exact session IDs to limit scope.
forget_sessioncan change or delete data
Remove stopped sessions from the list. Running sessions must be stopped first. Use all=true to clear every stopped session.
get_network_requestread-only
One captured request in full: headers, timeline events, and optionally the bodies. Fetched from the running app, so it works only while the session is alive. Flutter debug/profile sessions only, while the app is running. Captures dart:io HttpClient traffic (package:http and dio with its default adapter) — NOT cupertino_http/cronet_http native clients, WebSockets or raw sockets. Traffic those make is invisible here, not absent.
hot_reload
Hot reload a session, keeping app state. Flutter only. Returns code 0 on success; a non-zero code carries the compile error.
hot_restart
Hot restart a session, dropping app state. For web dev servers and plain processes this reboots the process.
inspect_projectread-only
Read fresh launch sources, configuration problems, nested projects and guidance file paths. Does not run commands or expose environment values. Use before choosing an environment, checkout and device; review screenshot evidence rather than treating capture as visual approval.
list_checkoutsread-only
List git checkouts this project can run from: This checkout, linked worktrees, local branches, remotes.
list_devicesread-only
List connected devices, simulators and emulators available to Flutter. Use boot_device to start one that is not running.
list_network_requestsread-only
List HTTP requests the app has made, newest last. One line each: id, method, status (… while in flight), duration in ms, response bytes, URI. Flutter debug/profile sessions only, while the app is running. Captures dart:io HttpClient traffic (package:http and dio with its default adapter) — NOT cupertino_http/cronet_http native clients, WebSockets or raw sockets. Traffic those make is invisible here, not absent.
list_proofsread-only
List past proof bundles, newest first.
list_run_historyread-only
List past and current runs persisted on disk -- survives daemon restarts. Each line is runId, name, status (live / exit N / ?), how long ago it started, and its log size. Pass a runId to read_logs to see its output.

Show 14 more tools

list_sessionsread-only
List running sessions with their status, capabilities, URLs and device.
list_targetsread-only
List everything runnable in a project: launch.json configs, package.json dev scripts, Flutter entrypoints.
read_launch_configread-only
Read a project's launch.json exactly as written -- comments, formatting and all -- plus the configurations it defines and any pre-flight problems with them. Returns file: null when the project has none; a file that does not parse still returns its text, with the parse errors.
read_logsread-only
Read recent output from a session, newest last. Use filter to grep for an error: it searches all retained output and returns the last `tail` matching lines. Works for a currently running session id, and for a past run (its own session id, or the runId from list_run_history) even after it has stopped or the daemon has restarted.
run_proof
Run proof verification and return a zip with screenshots, network call counts, response times and logs.
run_target
Start a target by name. Returns the new session id to use with the other tools. Optional branch or checkout runs from a git worktree without moving the current folder.
run_workflow
Launch up to eight project targets in dependency order and wait for each to become ready, in one call. Stops launching dependents on failure. Returns compact session IDs, URLs and errors; retains sessions for debugging. Use browser/device tools next to validate the actual flow. Paths must be absolute.
screenshotread-only
Capture the screen of a running session so the visual result of a change can be checked. iOS simulators and Android devices capture the device screen. Web sessions (Vite, Next.js, Flutter web...) load their URL in a headless Chrome, Edge or Brave at the viewport given, and also report the page's console errors and failed requests; they capture at 1x unless scale=2. A capture proves an image was written, not that the UI is right: look at it.
session_summaryread-only
Cheap structured overview -- call this before deciding what to do next.
set_debug_flag
Toggle a framework debug flag on a running Flutter session, e.g. ext.flutter.debugPaint with {enabled: true} or ext.flutter.timeDilation with {timeDilation: 5}. Values are sent as the strings Flutter expects.
show_dashboardShow Batonread-only
Show a live Baton control panel in the chat: every running app with its simulator or URL, status, CPU and memory; per-app Reload, Restart, Pause/Resume, Bring to front, Logs, Screenshot and Stop; quick actions for all apps; and New run (pick a project, target and device, or boot a simulator). Use when the user asks to see or show Baton, their runs or simulators.
stop_sessioncan change or delete data
Stop one session, or every running session with all=true.
wait_forread-only
Block until a session reaches a state. Use after run_target or hot_restart instead of polling read_logs.
write_launch_configcan change or delete data
OVERWRITE a project's launch.json with the text given. The whole file is replaced, so read it with read_launch_config first and send the full text back, or comments and configurations you did not mean to touch are lost. Invalid JSONC is refused before anything is written. Returns the path written and any pre-flight issues in the result.

Signals

Stars: 1
Forks: 0
Open issues: 0
Last commit: Oct 12, 2026 (16 days ago)
Last release: Oct 11, 2026 (17 days ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name: io.github.kanumuri9593/baton
Version: 0.2.10
Auth: No auth
Packages: npm baton-run
License: MIT
Repository: github.com/kanumuri9593/Baton
Website: kanumuri9593.github.io/Baton/
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: Official MCP Registry github-graphql

Cite this page

Baton MCP server. Agent Mart. https://agentmart.dev/connectors/kanumuri9593-baton (last updated 2026-10-24)