write_session

write_session_files

Write files.

Parameters

Parameter	Type	Required	Description
`xCwd`	string	No	The target directory where the tarball contents will be extracted. If not specified, files are extracted to the sandbox home directory.
`sessionId`	string	Yes	The unique identifier of the session to write files to.
`teamId`	string	No	Team ID.
`slug`	string	No	Team slug.
`requestBody`	string	Yes	A base64-encoded gzipped tarball to extract. Provide this binary value as a base64 string.

Cross-link map: write_session_files (/docs/agent-resources/vercel-mcp/tools/sandboxes/write_session_files)

From the Vercel docs graph (built 2026-10-09T15:41:22.984Z), spanning vercel.com docs + KB, nextjs.org, ai-sdk.dev, and other Vercel documentation sites. Full graph as JSON: https://vercel.com/docs/graph.json

Semantically closest pages

read_session_file — Use read_session_file with Vercel MCP.
create_session_directory — Use create_session_directory with Vercel MCP.
Write files — POST /v2/sandboxes/sessions/{sessionId}/fs/write — Uploads and extracts files to a session's filesystem. Files must be u
create_sandboxes_sessions_by_session_id_snapshot_v2 — Use create_sandboxes_sessions_by_session_id_snapshot_v2 with Vercel MCP.
create_sandboxes_sessions_by_session_id_snapshot_v3 — Use create_sandboxes_sessions_by_session_id_snapshot_v3 with Vercel MCP.

Prerequisites

Agent Resources — Set up AI coding tools with Vercel documentation, reusable skills, and secure access to projects, deployments, and logs.

update_session_network_policy

Storage

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