MCP Session Bridge

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/t3ratech-mcp-session-bridge

About

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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 25, 2026.

Tools

8 read · 9 write · 5 delete

Secrets

3 (API keys, tokens or passwords)

Install scripts

None found

Runs as

Node.js package

Tools (22)

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

• session_clickClick an elementcan change or delete data

  Click an element, by CSS selector or by an @eN ref from session_snapshot. Scrolls the element into view and dispatches a real mouse press and release at its centre, so handlers that ignore synthetic events still fire. Returns {clicked} naming what was targeted. Fails with 'Element not found' rather than clicking something else when nothing matches.

• session_close_tabClose a tabcan change or delete data

  Close a tab, named explicitly by its id from session_list_tabs. Returns {closed, tabId}. Unlike every other tool here, tabId is required and there is no active-tab default: closing a tab is not undoable, and the active tab is the one the user is looking at. Requires the T3rnel Browser extension; the standalone browser refuses it by name.

• session_evaluateEvaluate JavaScriptcan change or delete data

  Run JavaScript in the page's own context and return its completion value. Use it for what the other tools do not cover — reading computed styles, walking a data structure the page holds, or checking a condition too specific for session_wait. Objects come back as formatted JSON, strings as themselves, and an expression with no value as "undefined". End the code with the expression you want back; a trailing statement returns nothing useful.

• session_fillFill a form field

  Set a form field's value in one step — input, textarea, or a rich-text editor such as ProseMirror, Lexical or Slate. Writes through the native value setter and then fires input and change, which is what React and Vue listen for. Returns {filled} naming the field. Use session_type instead when a field only reacts to real keystrokes, and session_select for a dropdown.

• session_healthSession health checkread-only

  Report which transport is live and what it can do. Call this first when another tool fails unexpectedly: it separates 'the extension is not running' from 'this browser does not implement that API', which produce very different fixes. Returns {ok, mode, browser, profileDir} in standalone mode, and the connection state plus the available browser APIs when the extension is attached.

• session_installInstallation instructionsread-only

  Return setup instructions for the T3rnel Browser extension and for the free standalone automation browser. Needs no browser and no licence, so it is the one tool that always answers — call it when another tool reports the extension is missing. Returns installation steps as text.

• session_list_tabsList open tabsread-only

  List every open tab. Returns an array of {id, title, url}. The ids are what every other tool's optional tabId argument accepts; omit tabId and a tool acts on the active tab, which is rarely what you want once you have opened tabs of your own.

• session_loginFill stored credentials

  Decrypt stored credentials for a domain and fill them into the page's sign-in form. Requires the T3rnel Browser extension with Pro, because the encrypted vault lives in the extension; the refusal comes from the extension rather than from this bridge, so there is one gate rather than two that can disagree. The standalone browser has no vault — sign in once by hand in its profile instead, and the session persists.

• session_navigateNavigate a tab

  Navigate a tab to a URL inside the user's authenticated session, so pages behind a login load as themselves rather than as a signed-out visitor. Reuses the active tab unless newTab is true. Returns {navigated} with the requested URL, and newTab when a tab was created. It returns once navigation is dispatched, not once the page has settled — follow it with session_wait before reading.

• session_pressPress a keycan change or delete data

  Press a single keyboard key on the focused element, or on a named element after focusing it. Use it to submit a form with Enter, dismiss a dialog with Escape, or walk a suggestion list with ArrowDown. Returns {pressed} naming the key. Supported keys are Enter, Tab, Escape, Backspace, Delete, ArrowUp, ArrowDown, ArrowLeft, ArrowRight, Home, End, PageUp, PageDown and Space; anything else fails with the supported list rather than doing nothing.

• session_read_pageRead page textread-only

  Read a page's visible text, as rendered in the user's authenticated session. Returns {url, title, text, truncated}; text is the body's rendered innerText capped at 50,000 characters, and truncated is true when the page was longer. Prefer this over session_snapshot when the goal is to read or summarise; prefer session_snapshot when the goal is to interact.

• session_record_eventsRead recorded eventsread-only

  Fetch the captured events of a recording, in the order they happened. Returns {events, count}, where count is the total held for the session and events is one page of {type, timestamp, tabId, data}; type is one of click, scroll, keypress, input, navigation, focus, select or resize. Page through long recordings with limit and offset rather than reading them whole, since a session can hold tens of thousands of events. Requires the T3rnel Browser extension.

• session_record_listList recordingsread-only

  List every recording, running or finished, so a caller can find the id that session_record_events and session_record_replay need. Returns {sessions}, each entry being {id, tabId, active, startedAt, stoppedAt, stoppedReason, eventCount, durationMs}. Requires the T3rnel Browser extension.

• session_record_replayReplay a recordingcan change or delete data

  Replay a stopped recording in its original tab, reproducing the recorded interactions in order. Returns {sessionId, totalEvents, replayedEvents, failedEvents, errors}, so a partial replay reports which steps failed instead of appearing to succeed. The tab must still be open. This acts on the live page and its effects are real — it will re-send messages, re-submit forms and re-spend money — so the extension classifies it high risk and gates it behind an approval prompt. Requires the T3rnel Browser extension.

• session_record_startStart recording

  Begin recording what happens in a tab: clicks, scrolls, keystrokes, form fills, selections and navigations, each with a timestamp. Returns {recording, sessionId, tabId} — keep the sessionId, since every other recording tool needs it. Requires the T3rnel Browser extension. Recording stops on its own if the tab closes or after four hours.

Signals

Stars

2

Forks

0

Open issues

0

Last commit

Sep 28, 2026 (1 month ago)

Last release

Sep 5, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name

io.github.t3ratech/mcp-session-bridge

Version

1.2.0

Auth

No auth

Packages

npm @t3ratech/mcp-session-bridge

License

Apache-2.0

Repository

github.com/t3ratech/mcp-session-bridge

Website

t3ratech.github.io/t3rnel-browser-plugin/

First seen

Oct 24, 2026

Last checked

Oct 24, 2026

Source

Official MCP Registrygithub-graphql