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app-server: Add streaming and tty/pty capabilities to command/exec (#13640)
* Add an ability to stream stdin, stdout, and stderr * Streaming of stdout and stderr has a configurable cap for total amount of transmitted bytes (with an ability to disable it) * Add support for overriding environment variables * Add an ability to terminate running applications (using `command/exec/terminate`) * Add TTY/PTY support, with an ability to resize the terminal (using `command/exec/resize`)
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@@ -0,0 +1,55 @@
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"definitions": {
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"CommandExecOutputStream": {
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"description": "Stream label for `command/exec/outputDelta` notifications.",
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"oneOf": [
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{
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"description": "stdout stream. PTY mode multiplexes terminal output here.",
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"enum": [
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"stdout"
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],
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"type": "string"
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},
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{
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"description": "stderr stream.",
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"enum": [
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"stderr"
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],
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"type": "string"
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}
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]
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}
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},
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"description": "Base64-encoded output chunk emitted for a streaming `command/exec` request.\n\nThese notifications are connection-scoped. If the originating connection closes, the server terminates the process.",
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"properties": {
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"capReached": {
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"description": "`true` on the final streamed chunk for a stream when `outputBytesCap` truncated later output on that stream.",
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"type": "boolean"
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},
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"deltaBase64": {
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"description": "Base64-encoded output bytes.",
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"type": "string"
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},
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"processId": {
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"description": "Client-supplied, connection-scoped `processId` from the original `command/exec` request.",
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"type": "string"
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},
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"stream": {
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"allOf": [
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{
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"$ref": "#/definitions/CommandExecOutputStream"
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}
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],
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"description": "Output stream for this chunk."
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}
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},
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"required": [
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"capReached",
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"deltaBase64",
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"processId",
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"stream"
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],
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"title": "CommandExecOutputDeltaNotification",
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"type": "object"
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}
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@@ -5,6 +5,28 @@
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"description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
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"type": "string"
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},
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"CommandExecTerminalSize": {
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"description": "PTY size in character cells for `command/exec` PTY sessions.",
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"properties": {
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"cols": {
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"description": "Terminal width in character cells.",
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"format": "uint16",
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"minimum": 0.0,
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"type": "integer"
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},
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"rows": {
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"description": "Terminal height in character cells.",
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"format": "uint16",
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"minimum": 0.0,
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"type": "integer"
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}
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},
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"required": [
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"cols",
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"rows"
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],
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"type": "object"
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},
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"NetworkAccess": {
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"enum": [
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"restricted",
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@@ -179,14 +201,54 @@
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]
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}
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},
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"description": "Run a standalone command (argv vector) in the server sandbox without creating a thread or turn.\n\nThe final `command/exec` response is deferred until the process exits and is sent only after all `command/exec/outputDelta` notifications for that connection have been emitted.",
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"properties": {
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"command": {
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"description": "Command argv vector. Empty arrays are rejected.",
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"items": {
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"type": "string"
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},
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"type": "array"
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},
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"cwd": {
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"description": "Optional working directory. Defaults to the server cwd.",
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"type": [
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"string",
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"null"
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]
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},
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"disableOutputCap": {
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"description": "Disable stdout/stderr capture truncation for this request.\n\nCannot be combined with `outputBytesCap`.",
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"type": "boolean"
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},
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"disableTimeout": {
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"description": "Disable the timeout entirely for this request.\n\nCannot be combined with `timeoutMs`.",
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"type": "boolean"
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},
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"env": {
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"additionalProperties": {
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"type": [
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"string",
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"null"
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]
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},
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"description": "Optional environment overrides merged into the server-computed environment.\n\nMatching names override inherited values. Set a key to `null` to unset an inherited variable.",
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"type": [
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"object",
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"null"
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]
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},
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"outputBytesCap": {
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"description": "Optional per-stream stdout/stderr capture cap in bytes.\n\nWhen omitted, the server default applies. Cannot be combined with `disableOutputCap`.",
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"format": "uint",
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"minimum": 0.0,
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"type": [
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"integer",
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"null"
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]
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},
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"processId": {
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"description": "Optional client-supplied, connection-scoped process id.\n\nRequired for `tty`, `streamStdin`, `streamStdoutStderr`, and follow-up `command/exec/write`, `command/exec/resize`, and `command/exec/terminate` calls. When omitted, buffered execution gets an internal id that is not exposed to the client.",
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"type": [
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"string",
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"null"
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@@ -200,14 +262,39 @@
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{
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"type": "null"
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}
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]
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],
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"description": "Optional sandbox policy for this command.\n\nUses the same shape as thread/turn execution sandbox configuration and defaults to the user's configured policy when omitted."
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},
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"size": {
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"anyOf": [
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{
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"$ref": "#/definitions/CommandExecTerminalSize"
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},
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{
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"type": "null"
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}
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],
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"description": "Optional initial PTY size in character cells. Only valid when `tty` is true."
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},
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"streamStdin": {
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"description": "Allow follow-up `command/exec/write` requests to write stdin bytes.\n\nRequires a client-supplied `processId`.",
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"type": "boolean"
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},
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"streamStdoutStderr": {
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"description": "Stream stdout/stderr via `command/exec/outputDelta` notifications.\n\nStreamed bytes are not duplicated into the final response and require a client-supplied `processId`.",
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"type": "boolean"
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},
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"timeoutMs": {
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"description": "Optional timeout in milliseconds.\n\nWhen omitted, the server default applies. Cannot be combined with `disableTimeout`.",
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"format": "int64",
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"type": [
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"integer",
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"null"
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]
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},
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"tty": {
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"description": "Enable PTY mode.\n\nThis implies `streamStdin` and `streamStdoutStderr`.",
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"type": "boolean"
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}
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},
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"required": [
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@@ -0,0 +1,48 @@
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"definitions": {
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"CommandExecTerminalSize": {
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"description": "PTY size in character cells for `command/exec` PTY sessions.",
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"properties": {
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"cols": {
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"description": "Terminal width in character cells.",
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"format": "uint16",
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"minimum": 0.0,
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"type": "integer"
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},
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"rows": {
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"description": "Terminal height in character cells.",
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"format": "uint16",
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"minimum": 0.0,
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"type": "integer"
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}
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},
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"required": [
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"cols",
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"rows"
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],
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"type": "object"
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}
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},
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"description": "Resize a running PTY-backed `command/exec` session.",
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"properties": {
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"processId": {
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"description": "Client-supplied, connection-scoped `processId` from the original `command/exec` request.",
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"type": "string"
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},
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"size": {
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"allOf": [
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{
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"$ref": "#/definitions/CommandExecTerminalSize"
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}
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],
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"description": "New PTY size in character cells."
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}
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},
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"required": [
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"processId",
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"size"
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],
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"title": "CommandExecResizeParams",
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"type": "object"
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}
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@@ -0,0 +1,6 @@
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"description": "Empty success response for `command/exec/resize`.",
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"title": "CommandExecResizeResponse",
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"type": "object"
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}
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@@ -1,14 +1,18 @@
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"description": "Final buffered result for `command/exec`.",
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"properties": {
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"exitCode": {
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"description": "Process exit code.",
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"format": "int32",
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"type": "integer"
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},
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"stderr": {
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"description": "Buffered stderr capture.\n\nEmpty when stderr was streamed via `command/exec/outputDelta`.",
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"type": "string"
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},
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"stdout": {
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"description": "Buffered stdout capture.\n\nEmpty when stdout was streamed via `command/exec/outputDelta`.",
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"type": "string"
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}
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},
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@@ -0,0 +1,15 @@
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"description": "Terminate a running `command/exec` session.",
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"properties": {
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"processId": {
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"description": "Client-supplied, connection-scoped `processId` from the original `command/exec` request.",
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"type": "string"
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}
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},
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"required": [
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"processId"
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],
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"title": "CommandExecTerminateParams",
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"type": "object"
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}
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@@ -0,0 +1,6 @@
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"description": "Empty success response for `command/exec/terminate`.",
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"title": "CommandExecTerminateResponse",
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"type": "object"
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}
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@@ -0,0 +1,26 @@
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"description": "Write stdin bytes to a running `command/exec` session, close stdin, or both.",
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"properties": {
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"closeStdin": {
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"description": "Close stdin after writing `deltaBase64`, if present.",
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"type": "boolean"
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},
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"deltaBase64": {
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"description": "Optional base64-encoded stdin bytes to write.",
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"type": [
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"string",
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"null"
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]
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},
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"processId": {
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"description": "Client-supplied, connection-scoped `processId` from the original `command/exec` request.",
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"type": "string"
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}
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},
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"required": [
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"processId"
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],
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"title": "CommandExecWriteParams",
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"type": "object"
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}
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@@ -0,0 +1,6 @@
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"description": "Empty success response for `command/exec/write`.",
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"title": "CommandExecWriteResponse",
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"type": "object"
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}
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