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JavaScriptdeepagentsindexSandboxBackendProtocol
Interface●Since v1.4

SandboxBackendProtocol

Protocol for sandboxed backends with isolated runtime. Sandboxed backends run in isolated environments (e.g., containers) and communicate via defined interfaces.

Copy
interface SandboxBackendProtocol

Bases

BackendProtocol

Properties

property
id: string

Unique identifier for the sandbox backend

Methods

method
downloadFiles→ MaybePromise<FileDownloadResponse[]>

Download multiple files from the sandbox. Implementations must support partial success.

method
edit→ Promise<EditResult>

Edit a file by replacing string occurrences.

Uses downloadFiles() to read, performs string replacement in TypeScript, then uploadFiles() to write back. No runtime needed on the sandbox host.

method
execute→ MaybePromise<ExecuteResponse>

Execute a command in the sandbox. This is the only method concrete implementations must provide.

method
globInfo→ Promise<FileInfo[]>

Structured glob matching returning FileInfo objects.

Uses pure POSIX shell (find + stat) via execute() to list all files, then applies glob-to-regex matching in TypeScript. No Python or Node.js needed on the sandbox host.

Glob patterns are matched against paths relative to the search base:

  • * matches any characters except /
  • ** matches any characters including / (recursive)
  • ? matches a single character except /
  • [...] character classes
method
grepRaw→ Promise<string | GrepMatch[]>

Search for a literal text pattern in files using grep.

method
lsInfo→ Promise<FileInfo[]>

List files and directories in the specified directory (non-recursive).

Uses pure POSIX shell (find + stat) via execute() — works on any Linux including Alpine. No Python or Node.js needed.

method
read→ Promise<string>

Read file content with line numbers.

Uses pure POSIX shell (awk) via execute() — only the requested slice is returned over the wire, making this efficient for large files. Works on any Linux including Alpine (no Python or Node.js needed).

method
readRaw→ Promise<FileData>

Read file content as raw FileData.

Uses downloadFiles() directly — no runtime needed on the sandbox host.

method
uploadFiles→ MaybePromise<FileUploadResponse[]>

Upload multiple files to the sandbox. Implementations must support partial success.

method
write→ Promise<WriteResult>

Create a new file with content.

Uses downloadFiles() to check existence and uploadFiles() to write. No runtime needed on the sandbox host.

Inherited fromBackendProtocol

Methods

MdownloadFiles→ MaybePromise<FileDownloadResponse[]>
—

Download multiple files from the sandbox.

Medit→ Promise<EditResult>
—

Edit a file by replacing string occurrences.

MglobInfo→ Promise<FileInfo[]>
—

Structured glob matching returning FileInfo objects.

MgrepRaw→ Promise<string | GrepMatch[]>
—

Search for a literal text pattern in files using grep.

MlsInfo→ Promise<FileInfo[]>
—

List files and directories in the specified directory (non-recursive).

Mread→ Promise<string>
—

Read file content with line numbers.

MreadRaw→ Promise<FileData>
—

Read file content as raw FileData.

MuploadFiles→ MaybePromise<FileUploadResponse[]>
—

Upload multiple files to the sandbox.

Mwrite→ Promise<WriteResult>
—

Create a new file with content.

View source on GitHub